ENGL Gigmaster 15 Combo E310
Contents
1. y Me ees o Important amie Besian b Connect Clean Lead Send Return frst Langer CE Frequency 80 16 Ohms serial one 16 Ohms fEPLACE FUSE Mid Boost Estocombo 1x18 Ohms cabinet to ANPE AND RATING Germany internal speaker 2x8Ohms output ack A rT Tod 13 14 15 16 17 18 19 20 21 13 Mains Connector AC Power Inlet IEC C14 connector Plug the mains cord in here For European models use a standard non heating equipment connector cable CAUTION Make sure you use an intact mains line cord with a grounded plug Before you power the amp up ensure the voltage value printed alongside the mains socket is the same as the current of the local power supply or wall outlet Please also heed the guidelines set forth in the separately included pamphlet Instructions for the Prevention of Fire Electrical Shock and Injury 14 Mains Fuse Box The rear chamber contains the mains fuse and in the front chamber a spare fuse CAUTION ALWAYS make sure replacement fuses are of the same type and have the same ratings as the original fuse Please refer to the fuse ratings table 15 Footswitch Clean Lead Mid Boost Use this 1 4 Stereo jack to connect a conventional footswitch with two switching functions for example the ENGL Z 4 2 x off on Single Pole Single Throw or SPST for short This type of footswitch lets you access the two channels and Mid Boost One of the two switches activates Clean or Lead while the2. Gig Master 15 Tube Guitar Amplifier Operator s Manual Please first read this manual carefully The ENGL Gig Waster 75 is an amp purpose designed for performance and voiced with premium tone in mind Both the combo and head come in exceedingly compact housings The Gig Master 15 is perfect for small gigs home or studio recording and practicing at lower volumes without sacrificing tone In fact because it is endowed with hip features such as a balanced Line Out with speaker simulation and a built in Power Soak with four variable power stages this amp is well suited for a wide range of diverse applications Its Master knob lets you dial in precisely the desired amount of power amp saturation Two EL84 pentode power tubes produce the amp s trademark tone while an ECC83 double triode preamp tube provides oodles of front end overdrive No one trick pony the Gig Master 15 offers plenty of variety for the tone connoisseur courtesy of its two channels and a specially voiced Mid Boost switch that shapes those midrange frequencies that matter so much to electric guitar tone And although these two foot switchable features afford you even greater flexibility to shape sounds on the fly handling remains an exercise in convenience and simplicity With its warm bluesy tube tone this amp is certainly a strong persuader Plug in play and be convinced You ll find guidelines on care and maintenance of tube amps and details for the Power Soak handling
3. from e v1 P above v3 v2 ECC83 ower EL84 EL84 Transformer Input Handling and Care to suffer when exposed to mechanical stress Keep the amp safe from hard knocks and shocks Tubes are fragile and tend Let the amp cool down before you transport it Ten minutes or so will spare the tubes Tubes take some 20 seconds to warm up after you switch the power on and about two to three minutes before they are able to pump out full power Make a habit of giving your amp plenty of time to get toasty and flipping the Standby switch for short breaks In order to spare the power tubes and prolong their lifetime we recommend to set the Stand By switch to Stand By 0 position that is before you switch the amp on After a period of 30 seconds you may activate the poweramp by flipping the Stand By switch Avoid storing the amp in damp or dusty rooms to spare jacks switches and potentiometers If you don t use the amp all the time recommend that you drape a covering over it to prevent the intrusion of dust Even better keep it in a transport cover or flight case Never use caustic or scouring detergents to clean the amp s housing front or rear panels Use a soft damp cloth or sponge with diluted soapsuds or a standard brand of mild dishwashing liquid instead Never use solvents they can corrode the amp s vinyl skin and dissolve the front and rear panel labels Keep liquids well away from the amp particularly the int
4. Mid Boost If you program the diverse switching configurations to different MIDI program locations e g MIDI Preset 1 Clean channel amp Mid Boost passive MIDI Preset 2 Lead channel amp Mid Boost active etc you can activate the desired configuration directly via a MIDI board e g ENGL Z 9 Z 12 or Z 15 This type of control option is extremely versatile we recommend it highly if you intend to use the amp in conjunction with a MIDI system e g MIDI effects devices Speaker cabinet options Another option would be to connect two 16 ohm cabinets in parallel instead of one 8 ohm cabinet Wiring of Principal Connectors Footswitch 15 Balanced Line Out 18 Stereo 1 4 jack ring refer to 2 tip 3 me ais y sleeve se a stereo tip refer to 3 plug only Stereo sleeve Ground Shield 1 4 plug Footswitch jack 15 2 A switch connected to this terminal controls Mid Boost passive lt gt active 3 A switch connected to this terminal controls Channel switching Clean lt gt Lead Balanced Line Out jack 18 2 the ring carries an inverted cold signal 3 the tip carries the hot signal with normal polarity ENGL Geratebau GmbH Internet www engl amps com Text design graphics photo and layout by Horst Langer ENGL Amp Designer Technical specifications are subject to change without notice
5. does not work with the two 16 ohm speaker outs Never activate the Power Soak when a speaker is connected to output A 20 or speakers are connected to the outputs A and B jacks 20 and 21 Power Soak deactivated switched off see chapter 22 for more information Poweramp Output B 16 Ohms serial This is an auxiliary output connected in series with Output A jack 20 This output is designed for one application for only when you are driving a combination of two 8 ohm cabinets speakers This output may only be used when an 8 ohm speaker is connected to Output A jack 20 See the example in chapter 20 NOTE Never operate the amplifier without a sufficient load otherwise you may damage or destroy the power amp When set to Speaker Off the Power Soak provides an adequate load for the power amp Speaker cabinet options You can connect one 8 ohm cabinet to the 8 Ohm Output 19 in combination with the Power Soak circuit and select any setting or connect one 16 ohm cab to Output A 20 or two 8 ohm cabs to Output A and B 20 and 21 without the internal Power Soak Selecting the Full Power setting deactivates the Power Soak Power Soak Panel z l Full Power II 5 watts Ill 1 watt IV Speaker Off POWER SOAK ENGU Power Rower puli Power Rower fuli Power Rones Full Power Full Power Rower kun Power Selector Selector Selector 5 watts 5 watts 5 watts 5 watts 5S watts a ri N Speaker off is Speaker off N Speaker off Sp
6. in certain places of this manual Please read and heed these before operating your amp You ll also come across boxes shaded grey throughout the manual These are located between the descriptions of the amp s functions and contain handy tips on the preceding function All critical information pertaining to the operation of this amp is preceded by NOTE or CAUTION Please pay particular attention to these safety tips The ENGL team wishes you all the best may you and your amp enjoy a harmonically rich future together Front Panel Features Input Gain Lead Drive Bass Middle Treble Lead Volume Master Ta 13 Input B L B he di Stana By E TI TT me 1 l l 4 5 7 8 9 i l i 1 Input 1 4 unbalanced input jack Plug your guitar in here using a shielded cord 2 Input Gain This knob controls the preamp s input sensitivity Use to dial in the desired amount of gain for the Clean and Lead channels It and the Master 10 knob determine the Clean channel s volume Note Turning the Input Gain knob all the way down gives the lowest input sensitivity A tip from the designer If you want to keep the preamp signal pristine clean dial in a setting between 7 and 11 o clock for active and humbucking pickups and between 9 and 1 o clock for single coil pickups The power amp provides a moderate amount of headroom so be sure to choose a relatively low Master knob setting lower than 12 o clock if you wish to avoid any kind of bre
7. other activates Mid Boost Plugging a footswitch into this jack disables onboard channel 9 and Mid Boost 8 switching Note also A footswitch may be equipped with LEDs indicating the given switching status Each of the two switches is provided with approx 10 milliamperes current which suffices to power a standard LED The jack s mono terminal tip selects Clean Lead switching while the stereo terminal ring controls the Mid Boost feature For pin assignments see Wiring of Principal Connectors A Tip from the Designer If you want to control the amplifier via a MIDI system use jacks 15 and a Looper or MIDI Switcher e g ENGL Z 11 Use two stereo 1 4 cords to connect the ENGL MIDI Switcher Z 11 optional You can then preset the two switching functions Clean Lead and Mid Boost via the Switcher store your custom switching setups as different MIDI programs and activate the presets via a MIDI board e g ENGL Z 12 16 FX Loop Send Connect the FX Loop output to a signal processor s input return jack using the shortest possible shielded cord equipped with 4 plugs 17 FX Loop Return Connect the FX Loop input to a signal processor s output send jack using the shortest possible shielded cord equipped with 14 plugs Note The FX Loop is sited between the preamp and power amp Inserting a 1 4 plug into the Return jack interrupts the signal path between the preamp and power amp 18 Balanced Line Out Frequency
8. Compensated The frequency corrected balanced Line output jack 4 stereo jack tip and ring routes the balanced signal shaft Ground Shield This signal can be routed directly to a mixing console or a recording unit The line out is located post poweramp in the signal chain so ensure the poweramp is activated If you wish to run the amp without driving a speaker the built in Power Soak 22 can provide the necessary load for the power amp To do this simply set its Selector to Speaker Off In this mode you can run the amp without a speaker or cabinet connected for example to the E315 Head s speaker outs Never use the Power Soak with speakers connected to the 16 ohm outputs jacks 20 and 21 Heads up Make sure the balanced cord s shielding is grounded at one end only that is either at the amp or at the mixer or recorder Connecting two devices to the same ground e g via the mains ground can cause a ground loop that you will recognize as audible humming You may find it necessary to sever the connection between the shielding and ground on one of the stereo 1 4 cord s two plugs A Tip from the Designer The Line Out s output level is influenced by the following factors By the input level Gain the Volume control settings in the Lead channel to some degree by voicing control settings and by the Master volume level First dial in the desired sound combination at the front panel Then adjust levels at FX devices or signal p
9. Soak by setting it to 5 Watts 1 Watt or Speaker Off when cabinets are connected to the 16 Ohm outs Be sure to first disconnect any speakers plugged into these ports If you select Speaker Off you can run the amp in most cases the head without a connected speaker If you want to drive one 16 ohm cabinet connected to the 16 Ohm Output A jack 20 or two 8 ohm cabinets connected in series to outputs A and B jacks 20 and 21 be sure to set the Power Range selector 22 to Full Power And if you connect an external 16 ohm cabinet to the E310 Combo be sure to disconnect the built in speaker before you power the amp up Heads up When activated the Power Soak s resistors convert some or all of the power amp s output into heat These heavy duty resistors reside on a circuit board behind a steel grille Ventilation is important for every tube amp but all the more so for this amp because the temperature around the Power Soak circuitry can climb quite steeply depending on the Master volume and Power Range Selector settings So make sure air can circulate freely around the back of the amp Do not operate the amp at peak loads that is with the Master knob set to 12 o clock or beyond pushing the power amp hard into overdrive for longer periods with the Power Soak activated because its power resistors may overheat Important tips from the designer You can use the Power Soak which attenuates the signal sent to the onboard 8 ohm speaker or an o
10. ak up Even in Clean mode you can push both the amp s preamp and power amp hard enough to overdrive the signal 3 Lead Drive This knob controls the Lead channel s sensitivity It and the Input Gain 2 determine the amount of preamp distortion in Lead mode Note The amp s noise floor will increase appreciably if you crank both the Lead Drive and Input Gain knobs CAUTION Extremely high gain and volume levels in Lead mode can produce powerful feedback Avoid feedback squeals they can lead to hearing loss and damage speakers At higher volumes back off the Gain and Treble levels in order to prevent unchecked feedback A tip from the designer Again it s the combination of Input Gain 2 and Lead Drive 3 settings that control the amount of preamp overdrive You can use these two knobs to set the desired amount of Gain in Clean and Lead modes and then dial in the perfect balance between the two Note that setting the Lead Drive knob to around 10 o clock will give you a tougher rhythm tone with a little added edge 4 Bass Bottom end voicing control of the preamps s passive EQ 5 Middle Mid range voicing control of the preamps s passive EQ 6 Treble Upper range voicing control of the preamps s passive EQ Tips from the Designer To help you get acquainted with the amp s fundamental sounds recommend that you set all tone controls to the center or 12 o clock position If you want to dial in very soft lead blues or jazzy
11. andby switch Use this switch to silence 0 position the amp when you take a break The amp s tubes stay warm which means that it is ready to roll immediately when you switch it back to full power The standby switch is also well suited for muting the amp for brief breaks for instance when you re switching guitars A tip from the designer suggest you get into the habit of using standby during short breaks In this mode current is not piped through the power tubes so they don t get as hot due to the lack of anode dissipation and are spared considerable wear The amp is ready to run when you flip the Standby switch because the tubes are already warm and don t require time to heat up For breaks of 30 minutes and longer recommend that you switch the amp off in order to conserve energy 12 Power AC power on off Please note ensure that the Stand By switch 11 is set to Stand By 0 position before you switch the amp on Let the tubes heat up for about 30 seconds before you activate the power amp This procedure spares the tubes CAUTION After an extended period of operation and higher ambient temperatures the amps s chassis can become very hot therefore avoid touching the rear panel surface Rear Panel Features ENGL Aowron A ore on Footswitch FX Loop DO NOT OPEN Balanced powetamp Output Pontes Guitar ASpiiner RISK oF ELECTRIC shock Line Output eens Gig Master 15 DO NOT Erose His m y ombo EQUIPMENT Te
12. clean sounds try setting the Treble knob between 11 and 1 o clock For more aggressive riffs or funk approved tone try a knob position between 1 and 4 o clock 7 Lead Volume Volume control for the Lead channel pre FX loop influences the Send level The red LED above the channel switching selector 9 indicates Lead operating mode Use this knob to dial in the desired balance of levels between the Lead and Clean channels 8 Mid Boost This voicing feature operates globally affecting both channels by boosting specific midrange frequencies when activated The LED above the button lights up to indicate Mid Boost is activated It may also be switched using a footswitch connected to jack 15 When a footswitch is plugged in the front panel Mid Boost button is disabled A tip from the designer Mid Boost targets and shapes specific midrange bands crucial in voicing a guitar s sound This tone shaping option is remotely controllable via footswitch so you can adapt the amp s fundamental sound on the fly say to better support rhythm guitar work singing leads and slashing power chords 9 Clean Lead Channel selector pushbutton for Clean and Lead modes red LED indicate Lead mode This function can also be activated via the respective footswitch connected to jack 15 Once a footpedal is connected the channel selector pushbutton is deactivated 10 Master Master volume control for power amp output located post FX loop 11 Stand By Power amp st
13. cted to the head simply select Speaker Off The Power Soak s heavy duty resistors will provide the necessary load for the power amp Technical Data Rated power Input sensitivity level Input Clean channel Input sensitivity FX Return Output level FX Send level range Tubes V1 V2 V3 Fuses external internal internal fuse located at the power transformer Power Tube Fuses internal on main PCB Important Power Consumption Dimensions Head E315 WxHxD Combo E310 Weight Head E315 Combo E310 Tube array Output Power Soak Transformer connector Head o E315 chassis viewed V1 5 from ECC83 v2 V3 above EL84 EL84 Power Transformer Input approx 15 watts at 8 or 16 ohms 20 dB 10 dB approx 10 dB max 10 dB to approx 7 dB peak ECC 83 12AX7 selected EL 84 6BQ5 matched set 0 315 ATL slow for the 230 Volt model 0 63 ATL slow in the 100 and 120 Volt models 0 5 ATL slow for the 230 Volt model 1 ATL slow in the 100 and 120 Volt models 2 x 0 063 AM medium blow Replace fuses only against same type and rating approx 70 watts max approx 42 x 20 22 x 23 cm 16 5 x 7 9 x 9 approx 42 x 38 40 x 23 cm 16 5 x 14 9 x 9 approx 8 4 kg 18 5 Ibs approx 13 4 kg 29 5 Ibs Output Transformer Power Soak Combo connector E310 iu chassis viewed
14. e all cords guitar effect and speaker connected properly and are they functional gt Unplug connected effectors and see if the preamp works fine without these peripheral devices gt Is the Power Soak Selector step switch 22 set to Speaker Off In this case the 8 Ohm Output 19 is switched off Set the Power Soak Selector 22 to another position e g Full Power gt Are the Master Gain or Volume knobs set to a value greater than 0 If any of these knobs is fully down no signal is routed to the amp s outputs gt You may be looking at a faulty tube or another defect the internal power tube fuses blown etc In this case be sure to take the preamp to an authorized professional service center The speaker is emitting humming noises gt Is there a connection for example via a shielded circuit e g Line Out between the amp and another device that is grounded via a power plug of its own Two or more circuits sharing a common electrical ground line can cause audible hum If low frequency noise is emanating from your rig be sure to consult a specialist gt The amp and mains grounds are not connected properly or are altogether disconnected Have an experienced specialist check this gt Cords connected to the input or effect loops may not be shielded properly Replace them to check if this is indeed the case gt The amp or speaker cords may be picking up interference from powerful magnetic fields for exa
15. eaker off 3 Power Soak Power Soak Power Soak Power Soak not active activated activated activated Poweramp Output 22 Power Range Selector Use this switch to activate the Power Soak and select the desired power level The Power Soak works only in combination with the amp s 8 Ohm Output 19 You have four options The first setting I is Full Power It deactivates the Power Soak and feeds the power amp s full output to the 8 Ohm 19 or 16 Ohm 20 speaker outputs The second setting Il is 5 Watts It activates the Power Soak and reduces the power sent to the 8 ohm cabinet connected to the 8 Ohm Output 19 to 30 percent about 5 watts The third setting III is 1 Watt It activates the Power Soak and reduces the power sent to the 8 ohm cabinet connected to the 8 Ohm Output 19 to 5 percent about 1 watt The fourth setting IV is Speaker Off It activates the Power Soak whose resistors convert the power amp s full output to heat and switches the cabinet connected to the 8 Ohm Output off CAUTION The Power Soak circuit works only in conjunction with an 8 ohm cabinet connected to the 8 Ohm Output 19 Make absolutely certain a speaker is connected to the 8 Ohm Output for example the E310 Combo s internal loudspeaker or an 8 ohm cabinet to the E315 Head before you engage the Power Soak by setting switch 22 to 5 Watts or 1 Watt The opposite goes for the two 16 Ohm A and B outputs jacks 20 and 21 Never activate the Power
16. erior of the housing which increases component life resistor i e the internal Power Soak circuit Make sure air can circulate at the rear and top of the amp to allow for adequate cooling Never operate the amp without an adequate load a speaker cabinet or suitable terminating High ambient temperatures place an additional strain on diverse components so if at all possible avoid operating the amp at temperatures far higher than 30 C 86 F for longer periods Running the amp at mains voltages exceeding the nominal mains input voltage over longer periods can also shorten component life Replace tubes with selected tubes that satisfy ENGL selection criteria to forestall microphonic properties undesirable noise and unbalanced power amp signals Because power tubes idle current bias must checked and possibly adjusted when replacing tubes this is a job best left to experienced and authorized specialists Troubleshooting The amp does not power up after you have switched the power on The control lamp inside the power switch 12 does not light gt Is the mains cord connected to the receptacle live power source gt Is the power cable you are using intact Try another equal mains cable gt Is the mains lead properly connected to the AC Power Inlet 13 at the amp gt Possibly the mains fuse 14 has blown unplug the mains cord from the mains connector and the receptacle and check the mains fuse The am
17. mple of nearby power transformers or electrical motors Reposition the amp and connector cables gt The amp or speaker cords may be picking up radio signals for example from activated mobile telephones or powerful local transmitting stations nearby Switch off mobile phones while troubleshooting noise problems CAUTION Please read and heed the following You ll find an ancillary pamphlet accompanying this owner s manual entitled Instructions for the Prevention of Fire Electrical Shock and Injury Be sure to read it before you plug in and power up the amp The different options for controlling the Gig Master 15 amp remotely ower Soal Acostion AN Balanced Poweramp Output 3 A Footswitch FX Loo ube DO NOT OPEN s affects r cuter Roainer isxor eLecmacsnock Line Output nos Gig Master 75 DO NOT EXPOSE THIS put only RAIN OR MOISTURE Important AneDesign by Clean Lead Send Return Horst Langer CE Frequency 8Ohms 16 Ohms serial one 16 Ohms REPLACE FUSI Mid Boost NGL Amps Comp 310 Combo 1x16O0hms cabinet to GNU WITH SAME internal speaker 2x8Ohms output jack A TYPE AND RATING Germany 1 Two way footswitch e g ENGL Z 4 Connect it to the amp via a stereo 1 4 cord You can switch channels and Mid Boost via the Two way footswitch connected to jack 15 2 MIDI Switcher e g ENGL Z 11 Connect the unit to the amp via a stereo 1 4 cord The buttons on the Switcher controls Clean Lead and
18. p does not power up after you have switched the power on The control lamp inside the power switch 12 lights up but the Channel amp Mid Boost switching functions do not react i e the corresponding control LED s do not indicate an active function moreover no sound is emanating from the connected speaker gt Possibly the internal mains fuse has blown Let this fuse check by a professional technician The amp fails to respond when you try to control switching functions remotely using a footboard such as the Z 4 or a MIDI switcher such as the ENGL Z 11 gt Is the footboard or the switching loops connected to the corresponding footswitch jack 15 gt Are the cords you are using stereo intact and wired properly Refer to Wiring of Principal Connectors for pin assignments gt If you are using footswitches other than an ENGL Z 4 or Z 11 are the switches or relays inside the boards or switching loop systems off on Single Pole Single Throw SPST switches In other words do these switches continuously connect to GND when you wish to activate the given function If you re unsure about the answers to these questions consult an authorized service center or a professional specialist The amp is not providing an output signal no sound is emanating from the speaker gt Is at least one speaker connected to the speaker outputs 8 ohms 19 or 16 ohms 20 gt Is the power amp activated Standby switch to ON gt Ar
19. rocessors if connected Use the respective device s input sensitivity or gain control for level adjustments You can also tap the line out signal at this jack using an unbalanced cord with a mono plug that is with one wire carrying the signal and the shielding providing the grounding An internal resistor protects the second output against short circuits 19 Poweramp Output 8 Ohms 8 ohms speaker output jack Connect an 8 ohm cabinet or in the case of the Combo E310 its internal speaker here The Power Soak circuit sits between this speaker output and the power amp You ll find some important info on this circuit in section 22 please read carefully before operating the Power Soak CAUTION The built in Power Soak 22 may only be used in combination with an 8 ohm speaker or the E310 Combo s built in loudspeaker connected to jack 19 20 Poweramp Output A 16 Ohms serial 16 ohm speaker out connected internally in series with 2 Output B jack 21 Connect a 16 ohm cabinet here Output A Two 8 ohm speakers are connected to Output A jack 20 and Output B jack 21 for example a combination of the internal 8 ohm speaker of the Combo E310 and an external 8 ohm cabinet e g the ENGL models E112 or E412 CAUTION If you intend to use a 16 ohm cabinet only make absolutely certain you connect it to Output A jack 20 Output B jack 21 is only enabled when a speaker is connected to Output A jack 20 The built in Power Soak 22
20. utboard 8 ohm cabinet for several purposes For example you may want to shape your tone with moderate power amp saturation but the volume with the Master knob cranked may be too loud for the situation or location In that case simply cut the power sent to the speaker You can opt to reduce output by two thirds or even down to just one watt The 1 Watt setting drastically reduces the volume level though it will still be loud enough for monitoring during recording sessions The Power Soak Selector s Speaker Off is the setting of choice when you want to mute the speaker for direct to desk recording The power amp s entire output is then fed to the Power Soak s heavy duty resistors which ensure the power amp gets the load 8 ohms it needs to run safely If you are using the Power Soak in combination with the Clean channel don t drive the power amp too hard by setting the Master to 12 o clock or beyond because its tone will suffer and the power resistors temperature will rise sharply If you do set the Master to 12 o clock or beyond highly recommend that you back off the Bass and Input Gain knob settings particularly for the Clean channel to prevent undesirable clipping Bear in mind the golden rule that no speaker or cabinet may be connected to the 16 Ohm Output jack 20 when the Speaker Off setting is engaged When in doubt always check first If you want to record via the Line Out without a connected speaker typically a cabinet conne
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