Multi-Channel Amplifier
Contents
1. Ln Aa O dan The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation or maintenance instructions The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltages within the product s enclosure that may be sufficient magnitude to constitute a risk of electric shock to people WARNING CAUTION TO REDUCE THE RISK OF TO REDUCE THE RISK OF ELECTRIC SHOCK A A ELECTRIC SHOCK DO NOT DO NOT REMOVE COVER OR BACK NO USER EXPOSE THIS EQUIPMENT TO SERVICABLE PARTS INSIDE REFER TO RAIN OR MOISTURE QUALIFIED SERVICE PERSONNEL CE This product conforms to all EU Directive requirements as applicable by law The complete Declaration of Conformity can be found at compliance currentaudio com www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP1270 RPA 11152013 Thank you for purchasing the Current Audio Two Channel Amplifier Please read this manual thoroughly before making any connections or applying AC power This manual applies to the AMP 2150 See our multichannel four and six zone amplifiers AMP 870 with eight channels and AMP 1270 with twelve channels Follow the instructions in this manual It will allow you to obtain the maximum performance and listening pleasure from your new amplifier Please re2. Setup Selections SELECTING INPUTS Caution Before making any changes to the Bridged switch position insure that the Master Power switch on the rear of the amp is OFF Possible damage to the amp may occur due high transient current during switching or from wiring misconfiguration Line In This is the source for each channel Bridge Mono Switch In certain instances the user may require addition power for some applications 300 watts of mono at 8 ohms may be obtained When in the Bridged mode you are combining the two channels to accomplish the increased power NOTE You will require two amps to get the increased power for stereo Caution Make sure the Master Power switch is OFF before making changes Connect the speaker wire to the top left RED binding post Connect the speaker wire to the top right RED binding post Even though it may appear wrong this is correct Check your work If you require stereo you will require another AMP 2150 Designate one of the amps as LEFT and the other amp as the RIGHT channel Caution DO NOT connect more than one speaker to the output in the Bridge mode Maintain a 8 ohm minimum load when using the Bridge mode Bridge Mode Hook up Move switch to Bridged BRIDGED Mono mode with MONO CH2 IN Master Power Off NORMAL b C Speaker Lead to R Speaker Lead to L Not Used in Bridged Mode www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Sui
3. 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP1270 RPA 11152013 lO Output CD Output Input Output Receiver Blu Ray Multi room tape Output Line In Input NOTE If Sie stereo is desired in the high powered bridged mode two amps will be required Bridged Output for Mono RIGHT RIGHT LEFT LEFT Normal Output for Stereo www currentaudio com 10 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP1270 RPA 11152013 INSTALLATION Troubleshooting Possible Cause No Sound From Any Channel Unit not plugged into AC power i power plug in to a live unswitched Check cable connections Replace cable BUGIOIC abla NOED IO pet CONDECIEA Check if connected to proper inputs Program amp matrix switcher to send signal to ma AEE OF SOUNGE your input Select audio format on DVD Master Power Switch on rear of amp Place Master Power switch to ON Toggle the Power Switch until the light glows Pentre ver ain BLUE Is 12 Volt Trigger applied Source cable may be faulty Check cable and output from source Input Selection switch or Bridge Normal Check Bridge Normal switch position Refer to switch may be in wrong position manual for proper settings Check the speaker connections Make sure there are no whiskers that could cause a short Speaker Wire or Speaker Any short will cause only that channel to shut down The other channel will continue to
4. GN curr NTAUDIO D Force Technology By Current Audio Two Channel 150 Watt Digital Class D Amplifier AMP 2150 ee A AeA i DD Instruction Manual Safety Instructions Read these instructions completely prior to use or hook up Keep these instructions for future reference Understand and heed all Warnings Follow all instructions Do not use amp near water rain or high moisture Clean only with a dry cloth Never use solvents Do not block any of the ventilation openings See Instructions Do not install near heat sources such as stoves radiators and amplifiers Do not defeat the safety purpose of the 3 prong grounding plug Protect power cord from being walked on or pinched Do not have cord stretched taut Use only connections and auxiliary equipment suggested by manufacturer Use only with an approved cart stand tripod bracket or table specified by the manufacturer When a cart is used use with caution when moving the cart apparatus combination to avoid possible injury caused by tipping over 13 Unplug this amplifier during lightning storms 14 Use an ILS 120 to protect from surges over under voltages and lightning strikes 15 Refer service to a qualified service personnel 16 Ifyou install the amplifier in a built in installation such as a rack or a bookcase ensure there is adequate ventilation Leave 5 127mm of free space at the top and sides and at least 4 100mm at the rear E ee RN
5. Turn Power OFF before switching a Muse AUTO MODE SWITCH con ASM nay Three ways to energize amp CH1 CH2 Constant ON MUSIC Sense 3 LINE IN Trigger DC 12V TRIGGER O O Individual Input for each R L separate channel zone 12VDC TRIGGER IN OUT DC 12V Controls Power state of amp b TRIGGER l p 9Y external source Front power button must be in Standby Mode to operate Male Tip is Input 12VDC 10k input Out 12VDC 100ma out 4 SPEAKER OUTPUT Banana Jacks for making screw down speaker connections Make certain no wire whiskers touch IEC POWER IN CONNECTOR Plug female IEC cord here Observe selected voltage Also houses the main fuse Replace only with correct fuse MASTER POWER 5 MASTER POWER Shuts OFF all power to the amplifier Use for service FUSE TYPE TIOAL 250 FOR 115 TRAI 250 FOR 720V www currentaudio com 2011 Current Audio LLC 5 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP1270 RPA 11152013 INSTALLATION Getting Started Amplifier Placement Current Audio D Force amplifiers require adequate free air space for safe and proper operation The following diagram indicates the minimum amount of free air space to provide the proper ventilation and heat exchange Anything less than this will shorten the life of the equipment and may cause the amp to shut down Position the amp with all feet on a solid level surface in a well ventilated area Do not place the un
6. ent at the Trigger the amp will energize The front Power Button must be in standby RED e Surge Protection To protect the amp from power surges and lightning strikes install the ILS120 in line surge protector This will protect the amp from power surges over and under voltage from power company and lightening The ILS120 can be used on TV subwoofer computer projector or any equipment with an IEC plug e Looping If a loop out is required for an addition amplifier use a dual output RCA plug Warranty Limited 1 Year Warranty Current Audio LLC amplifiers are warranted to be free from defects in materials and or workmanship to the original retail purchaser for a period of 1 year provided the equipment was purchased and installed from a Current Audio LLC Authorized Dealer or Distributor In the event of defective materials and or workmanship Current Audio LLC repair or replace at its option the defective product at no charge to the purchaser In order to make claim under this Warranty and to obtain performance of any obligation under warranty please contact Current Audio or your Authorized Distributor Instructions will be given on how to return the defective product to Current Audio Returned products must be shipped prepaid Proof of purchase must be provided with the product The Warranty does not apply to damage not resulting from defective materials and or workmanship while in the possession of the original consumer or due to unreas
7. function If RED you may have a short or bad speaker Measure ohms of wire with speaker disconnected from amp Should read about 6 50hms for a 8 ohm speaker Correct problem Replace wire and speaker If using a manual volume control check the connections and plug locations Switch Speaker Plug with a zone that is working Audio eable wererocereconnesicd Check cable connections Replace cable DARE Check if connected to proper inputs Verify Normal Line In Switch is in proper STE a A TONO position Check Bridge Normal Switch position p Refer to manual for proper settings RCA cable not completely seated Push in RCA cables completely Replace cable Bad cable Replace cable Check with a plug tester Reverse cord try a 2 Improper or No ground prong adapter Prewired cable ran too close to AC wires di RO UO A SION ere WIA AGA Level set too high Turn rear Level down Cable TV ground not the same as earth su ground Insert in line ground isolator Ground Loop Common all grounds isolate AC ground Improper Connection From Amp to Speakers Check speaker wiring at amp to speakers and from speakers to amp VEE di Change Switch Position Turn Master Power ASA S ANO SMI One aon Switch Off first before switching 12 Volt Trigger Baier Swiicioniianivanti Make sure the Switch is in standby mode Not Working p indicated by a RED light BLUE when triggered No Audio from One or More Channels Check Front LED Above that Zone No Audi
8. he amplifier from the front panel The switch toggles from ON to STANDBY To indicate Constant ON the front LED lights will illuminate Blue MUSIC Auto Sense Mode When the AUTO MODE Switch is in the MUSIC mode the power to the unit is controlled by the input signal present on either the GLOBAL INPUT or any LINE IN for the separate Channel Zones Whena low level signal is detected on either of these inputs the amplifier will energize and send speaker level sound to the selected zones If after 10 minutes no signal is present the amplifier will automatically turn off The delay prevents cycling when there is any pause in the sound music source The Front panel switch must be in STANDBY indicated red on the switch It should turn Blue when a signal is detected on the inputs The amplifier will energize DC 12V Trigger Mode When the AUTO MODE Switch is in DC 12V position the system requires an external trigger to energize the amplifier Connect a remote two conductor via a male 3 5mm phone plug to the DC 12V TRIGGER IN jack The tip is positive and the sleeve is negative If more than one device needs to be controlled connect that device to the to the DC 12V TRIGGER Out jack via a male 3 5mm phone plug The front Power Switch must be in the Standby Mode to operate The LED on the Switch will illuminate red when in Standby mode and turn Blue when triggered This indicates the amplifier is active www currentaudio com 2013 Current Audio LLC
9. insulation from each wire and slightly twist the strands to ensure all strands can be inserted into the hole on the gold plated speaker 5 way binding post See the Strip Gauge figure below Insert the Red or copper colored conductor all the way up to the insulation into the hole at the RED binding post Do the same to the Black or silver colored conductor and insert into the BLACK colored binding post Make sure there are NO whiskers from the strands that could cause a short circuit The other end of these wires will be connected to your amplifier or volume control Note Sometimes your wire color may be White and Green After tightening you should have a connection with the proper torque for continued operation that will not wiggle out or cause poor connection For the Right Speaker Output insert the Red or copper colored conductor all the way up to the insulation into the hole labeled R at the bottom of Su the binding post Turn the knob clockwise until finger tight Then with a 9 16 14mm wrench firmly tighten Do not over tighten Try pulling the wire you should not be able to pull the wire from the binding post Next do the same to the Black or silver colored conductor and insert into the R hole of the Black binding Do the same for the LEFT Output Insert the Red or copper colored conductor all the way up to the insulation into the hole labeled L on the binding post Try pulling the wire you should not be able to pu
10. it on carpet There are ventilation slots at the bottom that create a natural cooling flow as the heat rises If installing in a rack or a cabinet it may be necessary to add a powered fan to provide cooling air flow Do not block the ventilation slots Do not place on carpet or fabric Do not place near a heat source In order to prevent corrosion or electric shock do not place in wet or humid locations Bor Fred Air Goace ar Top Natural Convection Air Flow Front of Amp i m NO CARPET Allow 4 of air space in the rear for ventilation and cable management Allow at least 2 of Free Air Space on both the Left and Right sides of the amp INSTALLATION Making Connections Caution All connections and switching should be done with the AC power switched OFF The final connection should be the IEC power cord INPUTS The inputs on the back of the amplifier are gold plated RCA connectors Interconnect cables of equal gold plated quality that are low impedance and shielded should be used to insure a positive continuous tight connection between equipment This will insure complete audio quality www currentaudio com 6 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 INSTALLATION Making Connections SPEAKER OUTPUTS The speaker output connectors are designed for stranded wire from 18 12 gauge Remove about 2 of the outer jacket then strip about 1 4
11. l completely ON and OFF Features Dual Power Mode Input power is switchable 115VAC or 230VAC e 3 Prong Plug Grounded input power for Safety e Master Power Switch Rear panel switch to cut power for service or hook up e Multi Stage Protection Each channel is individually protected with internal circuitry and is indicated on the front bicolor LEDs The amp will shut down a bad channel if it senses a short or is overdriven ONLY the channel that is affected will turn Off and indicates by the LED turning from blue to red thus pointing to the channel in distress The remaining channel will run unaffected and continue to provide sound without shutting down both channels Also the amp has thermal protection Line Input One input signal is distributed to the amplified speaker output If a line level loop output is required to power another amp use a dual output RCA plug Gain Adjustments There is a universal global gain control that sets the maximum level to both channels Set this to the maximum allowable speaker volume to prevent the speakers from being overdriven Installer Friendly Connections Each speaker channel has gold plated screw down 5 way binding posts to allow the user to make wire connections up to 12 gauge with either bare wire spade lugs or banana plugs The IEC power cord can be disconnected at the amp for easy service All inputs are made by easy connect gold plated RCA plugs Bridging If more power is req
12. ll the wire from the post Next do the same to the Black or silver colored conductor and insert into the hole of L binding post Strip to 1 4 Strip Gauge Make sure there are NO whiskers from the strands that could cause a short circuit The other end of these wires will be connected to your amplifier or volume control Note The terminals are on the top of the gold plated binding post The terminals are on the bottom of the gold plated binding post Sometimes your wire color may be White and Green when using a four 4 conductor audio cable You should now have a connection with the proper tension for continued operation that will not wiggle out or cause a poor connection that can produce intermittent audio static Make sure you connect the speakers to the amp n Phase In Phase means Red of the amp to the Red of the speaker and the Black of the amp to the Black of the speaker If they are connected out of phase the mid and low frequencies will cancel and the speakers will not perform as intended www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 LOOP OUTPUT The amp does not have a loop output If a loop output is needed to gang an amplifier to obtain more zones of music or used as a source for other LU components use a dual Y output RCA plug See figure to the right Dual Y RCA Plug INSTALLATION
13. o from One Channel Hum When Receiver Source Off No Audio from Speakers www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 N Considerations e Level setting start with Level at zero CCW With a working known source connected slowly increase the Global Level to the maximum safe listening level When the amp is energized it will not blast the speakers or damage any equipment including your ears e Using a Volume Control set volume control to maximum then adjust that zone Level on amp for maximum listening pleasure This will prevent extra loud volumes on energizing the amp or a particular zone e Adding Zones If more zones or rooms of music are required you can add an extra amplifier or switch to a multi zone amp Use a dual RCA plug if more then one AMP2150 is required Blended Stereo To obtain both Left and Right blended stereo into one speaker with 2 wires connect the output of one channel on the amp to the black of the speaker then the output of the other channel to the red of the speaker You can do the same for the unused outputs for another speaker Bridged Stereo To obtain Stereo from two separate channels a second amplifier is required This will provide a true stereo high powered zone e 12VDC Trigger When using the Trigger jack to control On Off wire the tip of the male plug for 12VDC When 12VDC is pres
14. onable use by the original owner which includes but not limited to improper installation negligence unauthorized repair or modification or aesthetic deterioration from the environment Products purchased by internet or unauthorized sources will void the warranty and not be honored Current Audio LLC is not liable for any incidental or consequential damages so the above limitations or inclusion may not apply to you This warranty gives you specific legal rights and you may have other rights which vary from state to state within the United States www currentaudio com 19 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013
15. tain this manual to use as a future reference May D Force be with you Supplied Accessories The box includes the following equipment and accessories e 1 Two Channel Digital Amplifier AMP 2150 1 Grounded IEC Power Cord for US Europe uses a 220VAC non grounded cord e 1 Set of right angle Rack Mount Brackets with mounting screws e 1 Instruction Manual Specifications Continuous Power Output 150 Watts RMS at 4 ohms 300 Watts per bridged channel RMS at 8 ohms Both Channels Driven Caution Maintain an 8 ohm load in the bridged mode Signal to Noise Ratio 95 dB 20 Hz to 20 kHz or 1 0dB Total Harmonic Distortion 8 ohms 0 1 THD 20 Hz to 20 kHz Bridged 8 ohms 0 03 THD Dimensions WxHxD 17 431 8mm x 4 101mm x 13 330mm 15 4 Ibs 7kg Glossary of Terms e Amplifier An electronic device for increasing the amplitude of low level electrical signals used chiefly in sound reproduction e Auto Sensing Amplifier will only be turned ON when a low level music signal is detected It will turn off when no signal is present after about a 10 minute delay The delay prevents any unwanted annoying cycling of amp e Bridging Amplifier bridging is simply combining 2 channels of an amplifier to drive a common load for more power Channel This refers to one input or output of a stereo zone Two channels make a stereo zone Continuous Power Out The ability of an amp to output its full RMS power continuousl
16. te 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 INSTALLATION Setup Choices for Power ON Caution Before making any changes to the AUTO MODE Switch insure that the Master Power switch on the rear of the amp is OFF Possible damage to the amp may occur due high transient current during switching or from wiring misconfiguration It has 1 Constant ON Itis provided by the Front Panel ON STANDBY Switch LED must be Blue NOTE The rear Master Power Switch must be ON 2 DC 12V TRIGGER The Front Panel ON STANDBY Switch must be in Standby mode LED will indicate red The tip of the plug is 5 Auto Mode Music In this mode the amp will energize automatically by sensing a small current when an audio signal is applied The Front Panel ON STANDBY Switch must be in Standby mode The switch LED will indicate red Constant ON Mode In the Constant ON mode the amplifier is energized continually This is the most inefficient mode of operation When in this mode the amp is always running and does not conserve energy If this mode is selected careful attention should be given to the steady heat generated Make sure there is ample ventilation to accommodate the excess heat produced in this mode To have power ON constant the ON position of the AUTO MODE Switch on the rear of the panel must be in the ON location to the left Turn the MASTER POWER switch on rear of panel to the ON position With this switch ON you can now energize t
17. uired for perhaps an outside area the two channels may be combined Bridged to provide 280 watts at 8 ohms to one speaker This is accomplished by connecting the speaker output to both Red binding posts and switching to the Bridged Mono mode on the back Bridged Switch CAUTION Turn power off when making change and always maintain an 8 ohm load when in the Bridge mode to avoid overheating the amp Rack Mount packed with each amp is an accessory pack that include brackets allowing the amp to be rack mountable This is accomplished by attaching the rack ears with the 4 included screws Power Mode Power is toggled ON OFF by the front power switch and is indicated buy the corresponding LED It can also be triggered ON OFF by a 12 VDC signal on the rear 3 5mm Trigger in jack Front Power button must be in standby mode to operate trigger LED must be red The tip of the plug is A Master Power Switch on the rear disables power to the amplifier for service www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 Rear Panel Elements CAUT gt RISK OF ELECTR SHOCK DONOTO WN AMP 2150 1 LEVEL Master gain control for both individual channels 6 INPUT VOLTAGE Allows user to switch fro 115VAC to 220VAC Remove protective cover BRIDGED 2 BRIDGED NORMAL SWITCH MONO CH2 IN 7 Combines the two channels to mono for increased power NEI
18. y Frequency Response Range over which an audio component can effectively produce a useable and fairly uniform undistorted output signal e Line Level A low level signal like a CD output that must be amplified to produce a usable audio sound level for speakers Loop Out A duplicate low level input signal that can be used to power additional amps to expand your zones If you do not have a Loop Out use a dual output RCA plug THD Total Harmonic Distortion specification that compares the output signal of the amplifier with the input signal and measures the level differences in harmonic frequencies between the two Zone Two channels make one Zone sometimes referred to as Room in multi zone room amplifiers www currentaudio com 2013 Current Audio LLC 1890 Cordell Court Suite 105 El Cajon CA 92020 Sales 866 927 7181 AMP2150 RPA 11152013 Welcome to D Force by Current Audio D Force describes the latest digital technology in amplifiers by Current Audio The D Force amplifiers generate the equivalent analog output for speakers by using a modulated audio signal rather than the traditional digital to analog conversion Because this amp uses pulse modulation efficiency of these amps is 90 compared to 50 of analog The amp is a Class D configuration D does not stand for digital but merely refers to the next letter after Class C It does exhibit a digital like output because the outputs are generated by turning the signa
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