REL Acoustics Stampede User's Manual
Contents
1. E sese rasa 19 REL Acoustics ST 5 User Manual WELCOME Thank you for buying a REL ST range Sub Bass system This manual contains important safety information as well as helpful advice and should be carefully studied before integrating the sub bass system with your sound system The new ST range of REL sub bass systems represents a radical advance in technical design The adjustment of level phase and crossover is achieved through new microprocessor controlled circuitry eliminating the need for multiple control knobs Each model offers the remote control of all calibration adjustments enabling the user to set up the sub bass system easily and more accurately from the listening position All these settings can be saved into memory and recalled at any time Most adjustments are available from the remote but a few adjustments that are normally only set on installation are only available from the front panel Reliability quality of construction and performance of REL products is maintained and enhanced by the innovative design of the latest ST series of REL sub bass systems STAMPEDE AND STRATA 5 Stampede and Strata 5 are designed as closed box systems For their cabinet volume and drive unit this arrangement offers the best compromise between extension and power handling With smaller cabinets the addition of a port to make it a reflex design can result in excessive port noise which manifests itself as chuffing when very l2. REL Acoustics ST 5 User Manual POWER SAVING EFFICIENCY All REL sub bass systems are designed for maximum power efficiency when operational and also when at rest REL circuitry is designed for power starvation operation when no signal is present However it remains at maximum readiness to respond immediately to a sudden transient signal such as an explosion in a movie even after an extended period of rest and at whatever level REL s maximum power efficiency should not be likened to auto power on off systems which power down after a set period of rest up to 10 15 minutes and which need time to power up again when required to reproduce a sudden transient They invariably fail to respond to the leading edge of that transient There is also the possibility of auto power on off systems remaining inoperative during quiet listening sessions It is not necessary to switch the REL sub bass system off between listening sessions leaving it switched on will not significantly shorten its life On the other hand sound quality will not be affected if the system is always switched off Power consumption in the quiescent no signal state is negligible REL s power starvation technology uses less than 4W when idle less than 1 25th the power of a standard light bulb The system is perfectly safe under all normal domestic circumstances as it is fully protected by internal fuses and an external mains fuse located in the sliding drawer
3. amplifier s speaker outputs the sonic signature of the entire amplification chain is folded into the signal for the sub thereby keeping timing and timbre cues consistent This connection can be made without affecting the performance of the amplifier because the sub bass system s amplifier input impedance is 10 000 ohms This method also avoids the detrimental effects of additional electronics in the amplification chain The High Level hook up procedure is explained above Positioning The optimal position for a REL is in one of the corners behind the main speakers This position provides 9 dB of acoustic amplification and allows for the most linear true low bass wave generation The Process To begin the set up process choose a piece of music that has a repetitive bass line which is very low in frequency Cut 4 from the soundtrack to Sneakers Columbia CK 53146 has a repetitive bass drum throughout which gives you plenty of time to move the woofer around The recording venue was quite large for this recording and therefore it has a very deep and large scale bass signature This type of recording is perfect for the set up process and should be played at the highest reasonable level expected for system playback With the REL remote control adjustment of each stage is simplicity itself to achieve 14 REL Acoustics ST 5 User Manual Trying to ignore all other music in the cut listen for the bass drum and its effect on the listening roo
4. control panel When using the front control panel the functions are accessed by sequential presses of the control knob the function being displayed on the two left hand digits of the seven segment display When the required function is accessed the value can be adjusted by rotating the control knob the value being displayed on the two right hand digits of the seven segment display FACTORY DEFAULT SETTINGS Before the MEMORY positions are programmed with the user s preferences they are all pre programmed with factory defaults as follows LFE 30 HIGH LEVEL 30 FREQUENCY 30 SLAM DEPTH 0 LFE MUTE Off PHASE 0 DISPLAY TIMEOUT Off DISPLAY BRIGHTNESS Max 10 DC TRIGGER Hi To reset factory defaults switch off the unit by means of the rear mains ON OFF switch Then switch back ON as you hold in the encoder knob on the control panel continue to hold the knob in until the decimal point on the right hand digit appears You will now have reset to the original factory defaults CONTROL PANEL DISPLAY REL Acoustics ST 5 User Manual The following options are available via the remote control and the encoder on the control panel T I F 0 CJ TI LFE input volume Select by pressing LFE or buttons on the remote control or pressing the control knob on the control panel until LF shows on the display Adjust level by pressing the or buttons on the remote control or rotating t
5. use the spikes do NOT insert them until completion of the set up process After which subtle adjustments to crossover and gain may be necessary 16 REL Acoustics ST 5 User Manual RUNNING IN Care taken over running in will be rewarded by many years of pleasurable use Both the electronics and the drive unit will benefit from an initial period of carefully controlled use Possible damage may be sustained by running in the unit at too high a volume setting over an extended period On the other hand by taking a little care over this initial period about 24 hours of actual use a longer life with a higher potential eventual performance is assured OVERLOAD PROTECTION REL sub bass systems are designed as true sub bass generators They are designed to reproduce those exceptionally deep notes that are felt rather than heard They will attempt to do this at whatever volume level you set If the volume is set too high no damage should result because the built in electronics will limit the cone movement This electronic control is called Set Safe amp It constantly and instantaneously monitors the output from the power amplifier and is totally transparent in operation until required This means it has absolutely no effect on the sound quality of any REL Sub Bass System until an overload is detected Ordinarily an overload would cause the power amplifier to go into clipping with resultant loss of control over the drive unit Apart from being sonicall
6. 01 dim to 10 full brightness n Select by pressing the control knob until br LJ appears on the two left hand digits rotate knob to set value as displayed on the two right hand digits DC TRIGGER Custom install feature Used for remote control of sub by other equipment I I Select by pressing the control knob until tr appears on the two left hand digits Rotate knob to select value Hi or Lo Please consult your dealer on use of this feature 10 REL Acoustics ST 5 User Manual CONNECTING UP Always switch off your system before disconnecting any wires To enhance connection versatility the St range has a range of separate inputs depending on the model see page 8 To connect to the power amplifier using the UNBALANCED Neutrik high level input To engage the Neutrik Speakon plug insert fully into socket and rotate clockwise until locked To remove the Neutrik Speakon plug grip body of plug place thumb on chrome lever move lever backwards and rotate plug anti clockwise counter clockwise in the US a quarter turn and withdraw The high level input is designed to accept the stereo two channel signals from the speaker terminals of your receiver integrated amplifier or power amplifiers This has the advantage of ensuring that your sub bass system receives exactly the same signal as the main speakers and ensures that the character of the bass from the main system is carried fo
7. D RISK OF ELECTRIC SHOCK DO NOT REMOVE PANEL NO USER SERVICEABLE PARTS INSIDE 220 240 50 60 HZ FUSE 24T Ou C Sy 5 12V DC TRIGGER 150 WATT MOSFET SUB BASS SPEAKER SYSTEM LFE LEVEL PROTECTEDBY SET SAFE HI LEVEL www rel net MADE IN GREAT BRITAIN REL Acoustics ST 5 User Manual EC Mains socket and On Off switch DC TRIGGER 3 5mm jack 5 to 12 Volts LFE INPUT Phono socket Used to connect the sub bass system at low level to the sub LFE output of the AV amplifier processor receiver Page 13 HI LEVEL INPUT Neutrik Speakon socket Used to connect the Sub Bass System at high level to the main speaker output terminals of amplifiers Pages 11and 12 Strata 5 amplifier panel shown Stampede amplifier panel is the same REMOTE CONTROL REL Acoustics ST 5 User Manual Most functions are accessible via either the remote or the front panel Standby and the memory are only accessible via the remote Display timeout display brightness and DC trigger are only accessible via the front panel To prevent accidental changing of parameters once they have been set the manual encoder on the front panel can be electronically locked To lock the control first press F2 and then F1 in sequence the display will read FP OF front panel off to reactivate the front panel encoder press F2 and F1 in sequence again the display will read FP on front panel on Used to raise or lower the volume when us
8. HIGH LEVEL PHONO TO PHONO Yes INTERCONNECT LFE SPIKES Yes USER MANUAL Yes REMOTE CONTROL Yes WITH BATTERIES 20 REL Acoustics ST 5 user manual
9. I esserne 8 FACTORY DEFAULT SETTINGS eene eene nnne nenne ener een ne ena eene rien les 8 CONTROE PANEL DISP AY ecce Fea ee roe ero ases scuba rodeo rosis cena neas ense sesvasesuases 9 ADDITIONAL FUNCTIONS siste 2 e aoc et osea ec esae coe ee osa aos Casus tensa Desde ae des Un eesis 10 CONNECTING UP op 11 TO CONNECT TO THE POWER AMPLIFIER USING THE UNBALANCED NEUTRIK HIGH LEVEL INPUT 11 To CONNECT TO MONO BLOCK POWER AMPLIFIERS USING THE HIGH LEVEL NEUTRIK UNBALANGED INPUT 2 ceteri teet desk toast eee netter ede videte NS DR ees etri di RS 12 TO CONNECT TO THE AMPLIFIER PROCESSOR RECEIVER USING THE PHONO TO PHONO LOW LEVEL INTERGONNEGT Mia basses 13 ALTERNATIVE METHOD FOR CONNECTING AT LOW LEVEL FROM PRE AMPLIFIER eene 13 REL SET UP MADE SIMPLE 125 eon oae ao na nono ser ao noa o na sona asini eon eU esse eee dos aceso soe od 14 RUNNING IN dn den eet e dence espe aeoea esee ss heads EN ade ada ans dadas adam 17 OVERLOAD erstes eter ea Solado Doe esa cando voro ies a eer eni animo Estad so DROP RENS 17 CARE AND POLISHING e DER Ee OR Ea ODE Ree oER AES 17 POWER SAVING EFFICIENCY coeno eee eee eroe eto noe eene eaae tae sean e sean sean e eaae eoe sean e eaae sean eso 18 SPECIEICATIONS eie EAE PUES
10. NCED input To engage the Neutrik Speakon plug insert fully into socket and rotate clockwise until locked To remove the Neutrik Speakon plug grip body of plug place thumb on chrome lever move lever backwards rotate the plug anti clockwise counter clockwise in the US a quarter turn and withdraw Supplied Neutrik Speakon High level Interconnect HI LEVEL input Release lever YELLOW L R MONO MONO BLACK BLOCK BLOCK PRE AMPLIFIER GROUND see below High Level connections should be made to the same binding posts as the main speakers Using a single sub bass system connect as shown above Connect RED to right monoblock speaker positive red terminal connect YELLOW to left monoblock speaker positive red terminal The BLACK should be connected to ground at the pre amplifier If the pre amplifier does not have a dedicated ground terminal then use one of the chassis screws at the rear of the pre amplifier NOTE MAKE SURE THAT ANY CHASSIS SCREW THAT IS CHOSEN IS NOT CAPTURED ON THE INSIDE WITH A NUT AS THE NUT COULD DROP INSIDE THE UNIT The output level can be adjusted by using one of the two methods described in the last section REL Acoustics ST 5 User Manual To connect to the amplifier processor receiver using the phono to phono LFE interconnect Phono to Phofio a To sub LFE output of Amplifier Processor Sub LFE Input Connect as shown above using a phono to phono interconnec
11. USER MANUAL STAMPEDE AND STRATA 5 REL Acoustics Limited North Road Bridgend Industrial Estate Bridgend CF31 3TP Great Britain Telephone 44 0 1 656 768 777 Fax 44 0 1 656 766 093 Web www rel net OU e 3 REL REL Acoustics ST 5 User Manual CONTENTS ESTANTE pese io Dado 2 WELCOME 5 2 7 5 2 2 0 0 10 6 Tao ruiu vL QU Mos Gia Coat e ta mb aaa ns rei aaa 3 STAMPEDE AND STRATA 5 neles snes eos doa dde a Enade ceniein do sede dodeadelesces 3 MAIN FEATURES OF THE NEW ST SERTES ssccssssccosscccssccenssssenssccencccenscscnscccenscccesscecensssens 4 IMPORTANT SAFEGUARDS co cia declina ceases eer seen es esse es eee es 4 b Walijcs 4 WORLDWIDE WARRANTY ade OR ido o eaa eod deed 5 SERVICE AFTER WARRANTY rentrer tetto a danada eb a resa aa daa 5 REAR AMPLIEIER PANDEL neo Lean oves a do ndo cosa ge oraa era ue Ea 6 REMOTE CONTROE orate no eta ao dent sore duc stecelsuvets do Sad co asda da aede do dores Ue dad a ie do saga 6 MEMORY FUNCT IONS deuda iota io eua ao nca eoe ou eno ea aU voa cocada swaps nv deed age as a sia do epa ge save dinda asda do 7 DISPLAY OF MEMORY FUNCTION seriam dt dase deesse a Pase vane a E 8 CONTROBE PANEL 7 1 2 2 5 2 2 M2 10 2 aids a TM E
12. e indicated on the panel of the amplifier 7 Only use the power cord supplied or one of similar quality and construction 8 Do not allow anything to rest on the power cord Position the power cord so that it cannot be stepped upon 9 For added protection during a lightning storm or for long periods of system inactivity unplug the sub bass system from the wall socket 10 Avoid spilling any kind of liquid on the sub bass system 11 Do not attempt to service the sub bass system yourself In removing the amplifier you may be exposed to dangerous voltages Refer all servicing to your dealer 12 Unplug the sub bass system from the wall socket and refer to your dealer under the following conditions a When the power cord or plug is damaged b If liquid has been spilled on the system c Ifthe system does not operate properly after following the operating instructions d If the system has been dropped and damaged e When the system exhibits a profound change in performance WARNING This sub bass system is heavy To avoid risk of injury take care when handling REL Acoustics ST 5 User Manual Worldwide Warranty In addition to any local warranty which may be offered by your Distributor or Retailer REL offers you a conditional three year Worldwide Warranty The conditions of this warranty are 1 Thatthe warranty shall be for a term of three years from the date of purchase 2 Thatthe warranty is ineffective until registrati
13. e level To do this leave the crossover where it is and simply play the system varying the volume until you have a happy medium between the speakers and sub the sub will sound obvious still but this is just the start Next reduce the frequency to minimum 16Hz Using the same track gently increase the frequency 1 Hz at a time What you are listening for is the point where the sub begins to sound obvious within the system usually somewhere between 20Hz and 33Hz with most loudspeakers Once you find the point where you can hear the sub over the response of the speakers reduce the setting by 1 to 3 Hz This is not an exact science but what we want is the sub to be invisible within the system sonically In short we increase the REL until you can hear it and then reduce until you cannot Finally adjust the volume to taste This generally will be by 1 or 2 positions And that s it All that s left is to open a good bottle of wine relax and enjoy 15 REL Acoustics ST 5 User Manual Hint There is a tendency among audiophiles to set the crossover point too high and the gain too low when first learning how to integrate a REL with the system the fear being one of overwhelming the main speakers with bass But in doing so the resulting set up will be lacking in bass depth and dynamics The proper crossover point and gain setting will increase overall dynamics allow for extended bass frequencies and improve soundstage properties Please note gain mus
14. e remote control For operation see pages 7 and 8 Phase Phase is selected by pressing the button labelled PHASE on the remote control display will read Ph 0 or Ph 18 representing O degrees or 180 degrees Phase can also be selected by pressing the knob on the control panel until Ph is displayed the O degrees or 180 degrees is selected by rotating the control knob REL Acoustics ST 5 User Manual Use this function to lock the control panel encoder this will prevent user settings being changed accidentally I Press MEMORY and then LFE MUTE buttons display will read FP on or FP oF FP on means front panel control active FP oF means front vanel control locked Pressing the standby button on the remote control switches the sub bass unit in or out of standby mode Press the STANDBY button and the display will read Stby briefly and then default to just four flashing dots Another press of the STANDBY button will bring it back to life ADDITIONAL FUNCTIONS Only available via the encoder on main control panel Display Time Out Enables the display to be turned off after a pre set time or left on continually indicates always on or select 1 to 59 seconds for display off Select by pressing the control knob until dt appears on the two left hand digits rotate knob to set value as displayed on the two riaht hand diaits Display Brightness Adjusts the display I brightness from
15. h the circuit boards to maximise sound quality There is further filtering of the higher frequencies to ensure optimum performance at all settings of the ABC Active Bass Controller The built in power amplifier is uses ultra rugged audio grade MOSFET output devices High quality smoothing capacitors offer long life with very low ESR Equivalent Series Resistance The transformers are ultra quiet audio quality low loss toroids specially manufactured to REL s strict specifications Great care has been taken to deliberately over engineer all REL products to ensure unparalleled reliability REL Acoustics ST 5 User Manual MAIN FEATURES OF THE NEW ST SERIES 1 Microprocessor control with memory for all functions 2 Dedicated digital readout for all functions 3 All components are of superior quality in order to achieve long life and long term consistency of sound quality 4 All cabinets made from 30mm thick MDF 5 Superior wood veneer finishes are available for all models 6 Set Safe circuitry ensures a high standard of protection if the sub bass system is overloaded IMPORTANT SAFEGUARDS 1 Read all of these instructions 2 Savethese instructions for future use 3 Unplug the sub bass system from the wall socket before cleaning with a damp cloth Do not use liquid or aerosol cleaners 4 Do not use near water 5 Always position the sub bass system on the floor 6 The sub bass system should only be connected to the power sourc
16. he control knob on the control panel Level will show in the range 00 to 99 High Level input volume Select by pressing or buttons on the remote control or by pressing the control knob on the control panel until Hi shows on the display Adjust level by pressing the or buttons on the remote control or by rotating the control knob on the control panel Level will show in the range 00 to 99 Frequency Select the roll off frequency by pressing the or buttons on the remote control or by pressing the control knob on the control panel until Fr shows on display Adjust cut off point by pressing the or buttons on the remote control or by rotating the control knob on the control panel Slam Depth Select the Slam Depth option by pressing the or buttons on the remote control or by pressing the control knob on the control panel until Sd appears on display Adjust level of Slam Depth by pressing the or buttons on the remote or by rotating the control knob on the control panel U 1 U J Ll LFE MUTE Select the LFE MUTE option by pressing the LFE mute button on the remote control or by pressing the control knob on the control panel until LF appears on the display Change the state to on or off by pressing the LFE MUTE button on the remote control again or rotating the control knob the displav will read LF on or LF oF MEMORY This function is only available via th
17. ing the LFE input Range 00 to 99 as displayed on the digital readout on main control panel vA Used to raise or lower the volume when using the high level input Range 00 to 99 as displayed on the digital readout on i ST main control panel Used to set the upper roll off point in the range 16 to 99 Hz as displayed on the digital readout on the main control panel LFE MUTE MEMORY Fi F2 Single channel graphic equaliser 9dB to ANDE 9dB at 80Hz Display will read 9 0 9 Used to store user preset preferences See below for detailed instructions on how to store and recall settings Used to mute the LFE input Display will read LF on or LF oF Press again to switch LFE input back on Used to put the sub bass system into standby mode Display shows Stby press again to bring out of standby Used to change the phase from 0 to 180 Degrees NOTE The display will read 0 and 18 Memory Functions There are four memory locations for the user to store preferred settings these are Position 1 Using the MEMORY button in conjunction with the LFE and buttons Position 2 Using the MEMORY button in conjunction with the HIGH LEVEL and buttons Position 3 Using the MEMORY button in conjunction with the FREQUENCY and buttons Position 4 Using the MEMORY button in conjunction with the SLAM DEPTH and buttons To Store User Settings First select the settings for each function which satisfy your particula
18. m 1 Phase Orientation Once in the corner we need to adjust for phase This may be the single most critical step and because it really is quite simple it is often over looked by even the most experienced audiophiles The right phase is whichever position is the loudest or fullest While playing music with true low bass adjust the crossover to a point where the sub and the speaker are sure to share frequencies 40Hz for big speakers or 60Hz for smaller speakers At this point turn the gain so that both sub and speaker are roughly equal in volume and then using the Phase button on the remote control change from 0 to 180 degrees this shows as 0 and 18 in the display Select the option that sounds loudest or fullest from the listening position At this setting the sub bass system is working in harmony with your main speakers reinforcing bass and not cancelling it Don t be surprised if the chosen position shows as 180 degrees out of phase Within your room system it is IN phase Alternatively the phase can be changed using the control knob on the front of the cabinet Although perfectly feasible the remote is the preferred method as the assessment can be done from the usual listening position and is the more accurate way of achieving the best result Room Orientation Next if space allows try two different orientations of the woofer relative to the wall First while playing the set up cut place the REL with the connection panel pa
19. of the mains input Socket There is also a spare fuse inside this drawer 18 REL Acoustics ST 5 user manual SPECIFICATIONS MODEL STAMPEDE STRATA 5 TYPE Closed box loading Closed box loading ROLL OFF 16Hz to 99Hz 16Hz to 99Hz IN ROOM RESPONSE 3dB 18Hz 3dB 18Hz INPUT CONNECTORS Neutrik Speakon High Neutrik Speakon High Level Level Phono LFE Phono LFE GAIN CONTROL RANGE 80dB 80dB AMPLIFIER TYPE DC Coupled Mosfet DC Coupled Mosfet Microprocessor Controlled Microprocessor Controlled Digital readout for all functions Electronic lock for manual encoder to prevent accidental changes INPUT IMPEDANCE HIGH LEVEL TWO 100K Ohms 100K Ohms CHANNEL UNBALANCED LOW LEVEL LFE 10K Ohms 10K Ohms UNBALANCED DRIVE UNIT 8 Heavy Duty Long Throw 10 Heavy Duty Long Throw POWER OUTPUT 100 Watts RMS 150 Watts RMS WATTS PHASE O and 180 Degrees 0 and 180 Degrees MAINS INPUT VOLTS 110 Volts or 230 Volts 110 Volts or 230 Volts COUNTRY SPECIFIC Depending on country Depending on country PROTECTION Set Safe for driver Set Safe for driver protection protection MAINS FUSES 2 Amp semi delay for 2 Amp semi delay for 230Volts 230Volts 4 Amp semi delay for 110 Volts 4 Amp semi delay for 110 Volts DIMENSIONS WxHxD 280 x 400 x 290 324 x 464 x 334 INC FEET AND COINTROL NETT WEIGHT KGS 13 4 23 2 GROSS WEIGHT KGS 15 4 26 1 SUPPLIED ACCSESSORIES MAINS LEAD Y es NEUTRIK SPEAKON Yes INTERCONNECT
20. on is received by REL 3 That the product is not exported from the country of purchase for at least eight weeks after purchase 4 Thatany claim is accompanied by the necessary proof of purchase 5 Thatthe product was purchased from an authorised REL dealer 6 Thatthe product has not been abused or modified in any way The Warranty is transferable provided REL has been notified prior to the transfer Notification must include the model serial number name and address of original purchaser and the name and address of the new owner The Warranty will be valid for the remainder of the original period of Warranty This Warranty is offered in good faith and is in addition to any statutory rights or existing Warranty that may be offered locally To register for this Warranty which is offered at no extra cost to you please complete and send the card enclosed or complete and send the Warranty card on the REL web site www rel net Note If you have purchased more than one sub bass system please send a card for each one SERVICE AFTER WARRANTY UK customers please contact your dealer in the first instance before returning any product directly to REL Should the unit need to be returned for any reason all carriage costs will be payable by the customer Losses or damage caused during transit are at the customer s risk Overseas customers please refer to the list of distributors on REL s website REAR AMPLIFIER PANEL CAUTION TO AVOI
21. ow frequencies such as organ pedal notes are reproduced Worse a small cabinet will not extend down as deeply as its closed box alternative The cabinets are manufactured from 30 mm thick MDF Medium Density Fibreboard This is the material of choice when the very highest quality is demanded There can be no substitute for weight and density in the quest for accurate low frequency reproduction Stampede and Strata 5 offer microprocessor control of all functions either via the remote control or the encoder on the front control panel Remote control makes it easier for the user to set up the sub bass system from the listening position For optimum performance we believe the electronics cabinet and the drive unit should all be designed to work together All REL amplifiers are fully DC coupled to avoid phase shifts and compromises in their performance The line level and filter stages are fully regulated to ensure total isolation from the power amp stages The filter stages are unique bespoke designs which utilise the highest quality components The capacitors are high quality nitrogen filled polystyrene types of 196 very close tolerance and indefinite life The use of very close tolerance components also ensures consistency of performance throughout the life of each model Although digital control is used the audio signals only pass through analog circuits thus ensuring no digital hash is added to the signal Great care is taken to star eart
22. r requirements for example you may wish to store the settings for two channel use and another set for 5 1 home cinema use When the correct settings are chosen then press the MEMORY button and one of the four memory location buttons the settings are now stored in this memory position To recall these settings press the memory button and the relevant memory location button in sequence The above procedure can be repeated for the other memory locations All settings can be stored in memory including those accessible only via the front panel REL Acoustics ST 5 User Manual Display of Memory Function 1 memory position store Press MEMORY the display will show Pr Profile Press LFE button the display will show Pr 1 and the settings will be stored 1 memory position recall Press MEMORY the display will show Pr Profile Press LFE button the display will show Pr 1 and the settings will be recalled Repeat the above procedure for memory positions 2 3 and 4 using the HIGH LEVEL FREQUENCY and SLAM DEPTH and buttons For memory position 2 display will show Pr 2 to store and Pr 2 to recall For memory position 3 display will show Pr 3 to store and Pr 3 to recall For memory position 4 display will show Pr 4 to store and Pr 4 to recall CONTROL PANEL DISPLAY ENCODER T c CJ All the functions snown on page y are avallapie via tne remote contro and the encoder on the front
23. rallel with the rear wall Second place the REL with the connection panel parallel with the sidewall As with phase the orientation which yields the most output is the best position for that room This process simply positions the driver to most efficiently drive the room In some instances there may be little difference at which point aesthetic concerns may override performance concerns Placement The next step is to determine precisely how far out from the corner of the room the sub should be placed to achieve the most efficient output as well as the lowest frequency extension With the sub fully into the corner and continuing to play the music slowly pull the sub from the corner on the diagonal equidistant from both side and rear walls Do this a couple of centimetres an inch at a time At a certain point sometimes a matter of only a few centimetres in rare cases up to 25 centimetres or more the sub will audibly go lower play louder and if it truly locks on to the room and is fully pressurising it the air around the sub will seem to be energised stop right there This is the correct position for the sub Crossover and gain settings The last stage of the set up is crossover and gain You will require an acoustically recorded track preferably with bass instruments and vocal What we are looking for here is a seamless crossover and integration between your main speakers and the sub bass system Firstly you will need to set a rough volum
24. rward into the sub bass This is a very important factor in the successful integration of your sub bass with the main system and works with the REL s ABC circuitry to ensure a superior result This input is labeled Hi LEVEL This is the recommended means of connecting the sub for two channel use Supplied Neutrik Speakon High level Interconnect HI LEVEL input Release lever Amplifier main speaker outputs High Level connections should be made to the same binding posts as the main speakers Connect as shown above Red to the amplifier s primary right speaker red terminal yellow to the amplifiers primary left speaker red terminal and black to one of amplifiers primary speaker black terminals not both Plug the Neutrik Speakon plug into the HI LEVEL Neutrik socket The output level can be adjusted by one of two methods 1 By using the remote control press the buttons marked HIGH LEVEL The front control panel will show Hi on the two left hand digits The volume level can be adjusted up or down by pressing the or buttons The display will show 00 to 99 on the two right hand digits 2 By using the encoder control on the front control panel press the control knob to select Hi on the two left hand digits rotate control knob to select the value in the range 00 to 99 on the two right hand digits REL Acoustics ST 5 User Manual To connect to MONO BLOCK power amplifiers using the High Level Neutrik UNBALA
25. support the rear channel speakers as well as to evenly distribute LFE through the room truly completes the full range sonic picture for state of the art film reproduction Some rooms notably in houses of wooden construction can sound bass light To overcome this disadvantage the new RELs offer variable Slam and Depth Simply adjust the and buttons marked Slam and Depth on the remote or navigate to the display using the front panel encoder and adjust to compensate for the room Of course some rooms especially smaller brick built ones may be bass heavy at around the mid bass area in which case reduce this effect by again using the Slam and Depth control Remember that all these settings can be saved into memory Note Some processors output a signal from their LFE socket even when playing a CD in Stereo mode In the past little could be done now using the remote simply mute the LFE This is recommended for Stereo mode listening and can be saved along with the other options Other Tips Generally speaking do not use the supplied spikes RELs work on the principle of the driver being in a high pressure zone relative to the floor Spiking the REL will decouple the woofer from the floor which will lean out the bass response If the floor is an older very springy floor spikes can be useful in reducing the influence of the REL on the floor A heavy stone slab under the REL will further improve performance Even if you intend to
26. t Plug one end into the sub LFE output on the amplifier processor and the other end into the LFE LEVEL input on the sub bass system The output level can be adjusted by one of two methods 1 By using the remote control press the buttons marked LFE LEVEL or The front control panel will show Hi on the two left hand digits The volume level can be adjusted up or down by pressing the or buttons and the display will show 00 to 99 on the two right hand digits 2 By using the encoder control on the front control panel press the control knob to select LF on the two left hand digits rotate control knob to select the value in the range 00 to 99 on the two right hand digits REL Acoustics ST 5 User Manual REL SET UP MADE SIMPLE REL designs are not traditional subwoofers but true sub bass systems A REL is designed to augment the performance of full range speaker systems to provide linear response down to below 12 Hz Studio Ill 6 dB down at 9 Hz Therefore for the moment set aside everything you ve been taught about subwoofers and how they are integrated into a stereo or theatre system REL s set up and positioning differs from other subwoofers A REL will take advantage of physics and room acoustics to provide deep pressurisation of the kind no ordinary sub woofer can deliver It s important that you bring to the set up process a willingness to do things a little differently in order to obtain
27. t be adjusted in conjunction with crossover changes In general when selecting a lower crossover point more gain may need to be applied Theatre and Film Applications For Dolby amp Digital or other surround sound theatre systems once the standard set up for two channel outlined above is complete the LFE output from the processor or receiver should be connected to the low level input and appropriate gain adjustments made Keep phase consistent with what was selected during high level set up For this configuration you must set the processor to the large or full range setting for the left and right speakers in order for the REL to receive the bass signal via the high level cable In this setting the REL provides support for both the left and right speakers for two channel listening and support for the LFE when movies are playing Most processors will allow you to defeat the subwoofer output when listening in the two channel mode however if this is not the case simply press LFE Mute on the remote or via the control panel and save the setting to memory for future stereo use The effect of this set up is one of greatly increased dynamics in the mid bass range no bass bloat and a greater degree of space and timing from the Foley effects For an even greater sense of space and impact a second woofer connected in parallel to the centre channel will prove to be a dramatic improvement as well And if that is not enough for you a rear sub both to
28. these superior results The result of your labours will be an utterly seamless integration of genuine sub bass to a sound system regardless of the main speaker s low bass capability Two Things Before You Begin A It is helpful to know that you will almost always connect the REL to the input on the rear panel labelled Hi Level This connection is made using the supplied cable the bare leads of which connect to the speaker output terminals of the power amplifier The easy connection at the REL is completed with a Neutrik Speakon connector The purpose of connecting to the speaker output terminals is one of the unique secrets of REL s success By connecting to the REL s High Level input from the amplifier you build forward the sonic signature of your main system including the tonal balance and timing cues In this way the REL shares the signal that is fed to the main speakers B When possible the REL should be placed in one of the corners behind the speakers A REL sub bass system will deliver true LOW bass pressurisation not the mid bass that most competitors settle for Low bass pressurisation below 30Hz is best derived from corner placement where the most linear and efficient low bass can be generated Basic set up should take no more than ten to fifteen minutes to accomplish once connected Connecting High Level connection using the enclosed cable with the Neutrik Speakon connector is always the first choice By connecting to the
29. y offensive this can cause drive unit damage Set Safe amp detects the point of incipient clipping and reduces the signal level to ensure actual clipping does not occur Even without Set Safe amp overload would be a difficult thing to achieve because REL sub bass systems have particularly high current amplifiers and very powerful drive units specifically designed for high sound pressure levels From our tests we believe it would be very difficult to deliberately damage a REL sub bass system Nevertheless anything can be damaged if sufficient effort is made Although everything possible has been done to minimise damage from moderate attempts at overloading there can be no defence against those individuals who deliberately and perversely abuse the device Such damage is NOT covered by Warranty Please remember a REL sub bass system is there to supplement your main system not to overwhelm it CARE AND POLISHING Brittex sprayed finishes These are best maintained by careful dusting with a lint free cloth Alternatively a soft bristled brush may be used to sweep off any dust falling on the surface If objects are to be placed upon the top it is advisable to use a small mat to protect the surface and to avoid the risk of rattles Wood veneer finishes Dusting as above plus the occasional polishing with a good quality furniture polish for the wood veneers Treat the finish as you would any other piece of quality furniture in your home
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