Operating Instructions - Gallien
Contents
1. Loud hum Excessive noise No LEDs on front panel are lit and no signal from Speaker Outputs Headphones Line Outputs or Balanced Outputs PROBABLE CAUSES SOLUTIONS Be sure all tone controls and volumes are turned up at least part way Auto Amplifier Shutdown may have tripped Reset by turning the Power Switch 22 off wait 3seconds then turn the Power switch back on If the condition still exists check interconnections with speakers Reset amplifier with Power Switch as described above If condition still exists check guitar volume pick ups cord and repair or replace if necessary Call your Authorized GK Service Center Be sure the effect parameters are up and front panel ON OFF buttons are in Check footswitch cable Effects Loop Send too hot overdriving the effect Keeping the Output Level 11 above the 1 o clock position will in most cases solve the problem Check grounding of the unit and any effects going through the effects loop Proper grounding is mandatory Repair or replace guitar cord Make sure external effects are patched into the Effects Loop and not before the Input Test guitar pick ups Check power cord AC outlet and fuse If all are OK or fuse is blown call your local Authorized GK Service Center Note Be sure the correct fuse is being used GALLIEN KRUEGER 2240 PARAGON DR SAN JOSE CA 95131 xK GALLIEN KRUEGE US 408 441 7970 FAX 408 441 8085 EUROPE 41 42 234520 FAX 42. They are recommended for unracked traveling pro tection Note Accessories are subject to availability Ask your Gallien Krueger dealer about specific items Block Diagram BALANCED OUTPUTS Output Impedances Compressor ML E Chorus ML E Max Input 1 4Vrms Output 70W into 8Q per channel stereo 140W into 4Q mono Reverb ML E less than 1 THD Headphones 1 4Vrms max into 8Q 25watt Dimensions Signal to Noise Ratio gt 74dB Clean Channel referenced to max input EQ flat Input Sensitivity Clean Channel 1 8m Vrms 1KHz Return Sensitivity 46Vrms 1KHz Active Equalization 15dB 80Hz Footswitch 18dB 800Hz 16dB 4 0kHz 12dB 10kHz Shape Cut 560Hz up to 14dB Input Impedances Tiputa seatt we vs ve Return ML S Return MLV E aeee Stereo Aux Input ML E 2 1 Compression Ratio w margin of 3 Crossover Filter 6dB oct 340Hz Modulation Rate 35Hz 2 4Hz Maximum Width delay time 17 5ms 22 5ms Electronic Analog Type with Stereo Outputs multi tap bucket brigade Heads 13 75 W x 1 9 H x 7 D 7 2155 206 combo 13 75 W x 10 25 H x 7 75 D 2315 208 Combo 17 20 W x 14 H x 10 50 D 36lbs 112 Combo 17 20 W x 16 H x 10 50 D 32lbs Celestion 40lbs EV ML S GK model RF2 and standard 3 connector stereo cord 1 4 plugs ML E GK model RFG4 and standard 5 conductor cord with 5 pin DIN connectors MIDI type Specifications Y
3. effects pre Output Level This input can be used in place of the Return when using stereo outboard effects through the Effects Loop It can also accept a stereo signal from sources such as tape machines recorders stereo receivers etc for 5 PIN DIN CABLE RFG4 STEREO EFFECTS STEREO MUSIC SOURCE TAPE CD RADIO ETC FOR THE MLI E playing along with prerecorded music see Sample Hookups 30 Stereo Balanced Outputs These are standard XLR low impedance jacks providing a means of hooking your ML E directly to a mixing console or recording equipment in both live and studio settings see Sample Hookups It is suggested you use the GK VCV Recording Compensation Module when using these outputs The Stereo Balanced Outputs are post internal effects and are not affected by the Output Level Control and can be switched to stereo or mono 31 Balanced Outputs Stereo Mono Switch In the mono mode both outputs are providing identical signals In the stereo mode you have true stereo left and right output signals 32 Balanced Outputs Ground Lift Disconnects the ground from the Balanced Outputs There may be situations where a ground loop occurs when using the Balanced Outputs resulting in a noticeable hum By disconnecting the ground the hum may be reduced or eliminated SUGGESTED GALLIEN KRUEGER SYSTEMS Putting together the right system is as important to your final sound as choosing the right ampl
4. for a stereo power rig The GK MLP 5 suggested ML S REAR PANEL TO SPEAKER S 22 NAL E ML S FRONT PANEL SEE SUGGESTED SYSTEMS BELOW TO SPEAKER S SPEAKER OUTPUTS STEREO LINE OUT afBanceD OUTPUTS Oboes en antl Q STEREO RETURN SEND 4 AUK FOOTSWITCH tae ro Perri stat Hookup to external power amplifier for a stereo power rig The GK MUP is MIXER PA suggested 0000 Oooe 6666 1 Hookup to externat 6000 one o stereo 111 CO power amplifier tor extra power The GK MLP is suggested MULTITRACK RECORDER 26 Stereo Chorus On Off Switch Turns the Stereo Chorus on and off The Chorus can be turned on and off with the RFG4 Foot Controller only when this switch is in the on position and the RFG4 is plugged in 27 Stereo Chorus Rate and Depth Controls Allows for variation of the internal chorus effect from a very subtle doubling to a more dramatic spatial effect Only the higher frequencies are chorused allowing the lower frequencies to be unaffected and thereby eliminating the detuning problems found in some chorusing units The Rate varies the speed of the effect and the Depth its intensity 29 Stereo Aux Input Accepts a stereo 1 4 phone plug to allow a stereo signal to be mixed with the internal preamp signal post internal
5. on 8Q Minimum Total External Impedance e With Internal Speakers off 4Q Minimum Total External Impedance 206 amp 208 Stereo Power Combos e With Internal Speakers on 16Q Minimum External Impedance Per Side e With Internal Speakers off 8Q Minimum External Impedance Per Side 112 Mono Power Combos e With Internal Speaker on 8Q Minimum Total External Impedance e With Internal Speaker off 4Q Minimum Total External Impedance 112 Stereo Power Combos e With Internal speaker on 8Q Minimum Impedance plugged into Right Side Jack Only Note DO NOT plug external speaker into the Left Side Jack on the 112 Stereo Power Combos when the internal speaker is on e With Internal speaker off 8Q Minimum External Impedance Per Side IMPORTANT Warning Under no conditions should the two speaker outputs of a stereo power unit be connected together in any way This will damage the ampli fier and void your warranty so please be careful in setting up your speaker configurations Auto Amplifier Shutdown To protect against failure the ML S and ML E heads and combos are equipped with an Auto Shutdown feature that is enabled when the Speaker Outputs are overloaded or when the temperature of the unit exceeds safe operation The power dissipation in the outputs is actually computed to determine if it is within safe operating conditions and automatically shutdown when limits are exceeded When shutdown
6. 1 42 239525
7. Generally keeping the Output Level greater than the 1 o clock position will avoid the problem of overdriving outboard effects Final note Once the levels of each channel Lead Master 6 and Volume 9 have been set use the Output Level 11 to control your overall stage level ML HEAD ML HEAD 80 86 STEREO 4Q MONO 49 MONO SAMPLE SETTINGS Controls shown in black are active or in the in position e Lead Master Volume and Output Level settings are dependant on speaker con figuration desired volume level and outboard effects Basic channel parameter settings on the ML E shown below are intended to be used with the ML S as well CRUNCHING ME AL OVERDRIVE u ae COUNTRY CLEAN Centeri or 25 0 eed Accessories There are a variety of accessories for the ML S and ML E Heads and Combos each designed to blend perfectly with the Microamplifier Series Footswitches For the ML S With the addition of the RF2 Foot Control you can take control of Channel Switching Lead Clean and Boost On Off with a tap of your toe A standard 1 4 phone stereo cord is included for hookup to the ML S For the ML E The RFG4 Foot Control is designed to gives you control over five functions in the ML E Channel Switching Lead Clean Boost On Off or Compressor On Off Reverb On Off and Chorus On Off A standard 5 pin DIN MIDI cable is included for hookup to th
8. ICE PRAGEN WERDEN SIE SICH AUSSCHLIESSLICH AN AUTORISIERTE TECHNIKER 1 4 9 ETSAV 04 15 85 ETSIA 2 4 TD SAR ML E REAR PANEL STEREO SERMLE STEREO PC OHMS 120 WATTS Te BALANCED OUTPUTS 7 RIGHT LEFT STEREO RETURN REGS AUXIN FOOTSWITCH HOTE ON 1 X 12 COMBO CONNECT B0 MIN EXTERNAL CABINET TORIGHT SPEAKER JACK FOA STEREO SPEAKER CONNECTED TOLEFT CHANNEL Front Panel Features 1 Input Jack Accepts a 1 4 phone plug and can be driven by a variety of instruments however the internal electronics have been optimized for use with an electric guitar 2 Channel Select Switch Allows you to switch between the Lead and Clean channels The RF2 Foot Controller on the ML S or the RFG4 Foot controller on the ML E will switch channels when this switch is in the in position and the footswitch is plugged in 3 Boost Control This unique feature works like a third footswitchable channel It controls the amount of gain before the first overdrive stage Turning clockwise increases the gain level It is footswitchable with the RF2 Foot Controller on the ML S or the RFG4 Foot Controller on the ML E You can achieve two dif ferent footswitchable lead sounds by setting the Gain Level control first for your low overdrive sound then setting the Boost control for your extreme overdrive sound The Boost can then be taken in and out
9. Operating Instructions Micro Lead Senes GALLIEN KRUEGER A Word from Bob Gallien and Rich Krueger We want to personally introduce you to our labor of love The Microamplifier Lead Series They symbolize our continuing effort to make the musician s life easier and more fulfilling Everything from the input stage to the speaker outputs has been redesigned and refined for one purpose the ultimate guitar sound After getting accustomed to the fact that this little package puts out an unbelievable amount of power the first thing you ll notice is how quiet the amp is That s due to a newly designed input stage that reduces noise at it s most prominent source And the hum that is normally induced into your guitar pickups from a typical amplifier is gone thanks to our advanced power supply design ACTIVE EQUALIZATION All this quiet can be instantly transformed into a roar of metal thunder or a smooth singing sustain at your whim The Lead Channel offers flexibility that surpasses anything we ve ever produced with all the balls you could ask for And the Clean Channel gives a sweet shimmering clean sound with vintage warmth and character As you read through this manual we hope you will gain an understanding of the care that went into the design and manu facture of your new amplifier Each feature has been designed to give you as much control over your sound as possible and with a little experimentation you should easily ob
10. e ML E COMP ON OFF DENOTES FOOTSWITCHABLE Specifications VCV Recording Compensation Module For recording directly from your Microamplifier simply plug in the VCV Vintage Cabinet Voicing Module It fits easily into the Effects Loop and has two switchable settings The Line Outs Headphones Speaker Outputs and Stereo Balanced Outputs ML E are affected by the VCV It is also recommended for use with small speakers and when using headphones Rack Mounting Kits All ML S and ML E Heads and Combos can be rack mounted with the addition of our optional rack mounting kits All Heads GK Part 304 1005 0 2 rack spaces 112 Combos GK Part 304 1065 A 10 rack spaces 208 Combos GK Part 304 1025 0 8 rack spaces 206 Combos GK Part 304 1077 0 7 rack spaces RETU INO gt ourrutV LEVEL TO POWER AMPS amp LINE OUT SEE FROM PREAMP SECTION Mic Stand Kit The 206 combo can be mounted on a standard mic stand with the addition of a Mic Stand Mounting Kit Order GK Part 304 1080 0 Road Bags To keep your amp looking it s best we offer custom fitted Road Bags for every model They feature a fully padded lined interior with a shell made of Cordura Nylon Cordura is waterproof colorfast self healing and grease resistant There is also a front zipper pocket for your cords and footswitches An adjustable shoulder strap lets you carry your amp and instrument together easily
11. ed The position of this switch is not important 15 Line Out stereo mono ML S only Provides a line level signal that is switchable mono stereo to take advantage of the stereo capa bility of the Effects Loop Return When used in the Mono mode it accepts a standard 1 4 phone plug When used in the Stereo mode it accepts a stereo 1 4 phone plug Unless you are using stereo outboard effects through the Effects Loop and the Stereo Mono Switch 14 is in the Stereo position only a mono signal will be present 16 16E RF2 and RFG4 Foot Controller Jacks Provides a means to hook up the optional footswitch for your amplifier The ML S accepts the RF2 two button Foot Controller allowing remote Channel Switching Lead Clean and Boost On Off The RF2 requires any standard 1 4 stereo phone cord for operation available from GK Part 304 2500 0 The ML E accepts the RFG4 four button Foot Controller allowing remote Channel Switching Lead Clean Boost On Off when in the Lead channel or Compressor On Off when in the Clean channel Reverb On Off and Chorus On Off The RFG4 requires any standard 5 pin DIN MIDI cable for operation Please make sure that the 5 pin DIN cable has all five wires not two or three 17 Stereo Headphone Output Accepts a stereo 1 4 phone plug delivering a stereo signal for use with any standard headphones Headphone Output level is controlled by the Output Level 11 Rear Panel Features 18 R
12. ifier or the right guitar Here are our favorite systems each designed to use all the power from the MicroLead running at a total of 8 ohms per side stereo or 4 ohms mono Combo systems are on the right systems incorporating heads on the left The size of your final system will depend largely on the portability you require 163160 STEREO SQ MONO Setting up your Sound The ML S and ML E are capable of producing a wide range of great guitar sounds Below you will find the basic procedures needed to get started We have also provided several sample settings that can be used as starting points for various guitar voicings Getting Started LEAD CHANNEL 1 Set Channel select Switch 2 to Lead 2 Turn the volume and any tone controls on your guitar to 10 before making adjustments on the ML S or ML E These will be fine tuned later 3 Set the Output Level 11 at the 2 o clock position the Gain Level 4 at the 10 o clock position the EQ at the 12o clock position and the Boost off counter clockwise While playing set the Lead Master 4 to desired level 4 Try the Shape 7 control to get a feel for how it alters the voicing of the Lead channel Set to achieve the desired starting sound 5 You will find that the Equalization 10 is quite responsive and takes some trial and error to get to know From the flat 12 o clock position take each control one at a time and turn it all the way up and all the way off while laying y
13. ight Stereo Line Out Provides a line level signal post Output Level for interfacing with outboard power amplifiers Right Line Out for mono internal power units Stereo Line Out for stereo internal power units see Sample Hookups on Mono Power Units Plugging into the Right Line Out splits the preamp signal left going to the internal 130 watt power amplifier and right going to the Right Line Out By connecting this line out signal to an external power amplifier in this case the GK ML P you have created a 130 watt per channel stereo guitar system A standard 1 4 phone plug is required for hook up A slight volume loss in the internal channel is normal on Stereo Power Units A stereo signal is provided for connecting to an external stereo power amplifier or two external mono power amplifiers the GK 265ML P or 130ML P are recommended for these applications Any standard stereo 1 4 plug is required for hookup 19 External Speaker Outputs Allows external speakers to be driven by the internal power amplifier s For optimum performance and to avoid damaging your amplifier use the following minimum external speaker impedance HEADS ML S amp ML E Mono Heads 4Q Minimum impedance Total 1x4Q speaker 2x8Q speakers Or 4x16Q speakers ML S amp MLIE Stereo Heads 8Q Minimum Impedance Per Side 1x8Q speaker or 2x16Q speakers per side COMBOS 206 amp 208 Mono Power Combos e With Internal Speakers
14. occurs the unit will appear to be on and all functions and LED s will work however there will be no power output to speakers To reset the amplifier turn the power switch off wait 3 seconds remove or lower the input signal and turn the amplifier back on If you experience more shutdowns even after correct ing the cause of the initial shutdown check all speakers and cables If further action is necessary please call your local GK Service Center continues on the next page 20 Internal Speaker On Off Switch Combos only Turns the internal speaker s on and off In the off position full power can be taken from the internal power amplifier s to drive external speak ers see Minimum External Speaker Impedances above 21 AC Receptacle and Fuse Holder This combination grounded AC jack and fuse holder is designed to accept a detachable power cord If a replacement is needed it should be UL rated at 10amps 125vac or 5amps 240vac The fuse and spare are located as indicated in the drawing below Never operate this amplifier with any other than the recommended fuse type 5mm 20mm slow blow 250V with ampere ratings as follows Line Voltage Fuse Rating Fuse 117VAC 2 5 Amps 2 5 250V 220VAC 2 5 Amps 2 5 250V 100VAC 3 Amps T3 0 250V SCREWDRIVER The fuse can be easily removed with a screwdriver as shown on the right A spare fuse is located in a sliding compartment Warning The Ground Pin
15. of the circuit with the footswitch The Boost has no effect when the Gain Level 4 is set all the way up clockwise 4 Gain Level Controls the gain of the first and second overdrive stages using a dual potentiometer Turning clock wise will increase the amount of saturation in the gain stages producing fuller harmonics and increased sustain The gain of the first overdrive stage will be increased when the Boost control is used 5 Lead Channel Indicator LED When lit the Lead channel is activated 6 Lead Master Controls the volume of the lead channel It affects the Send 12 Headphones 17 and Balanced Outputs 30 7 Shape Control This is a passive midrange control post overdrive It effectively varies the midrange frequencies in the Lead channel allowing a variety of lead voicings to be attained easily Rotating clockwise boosts the midrange 8 Clean Channel Indicator LED When lit the Clean channel is activated 9 Clean Channel Volume Control Controls the volume of the Clean channel It affects the Send 12 Headphones 17 and Balanced Outputs 30 10 4 Band Active Equalizer Provides boost and cut over four different frequency bands Each band has a specially selected Q and center point optimizing it for a particular guitar spectrum 11 Output Level Control Adjusts the level of the signal being sent to the internal power amplifier s and headphones affecting the Speaker Outputs 19 and the Head
16. on your power cord is for your protection Do not remove it 22 Power Switch Turns the unit on 1 and 0 0 Unplug the unit if it is not being used for an extended period ML E ONLY 23 Compressor Switch Turns the Clean Channel s Compressor on and off The compressor boosts low level signals while decreasing high level signals to add sustain It is preset to an overall general purpose 2 1 compres sion ratio ideal for most applications The Compressor can be turned on and off with the RFG4 Foot Controller only when this switch is in the on position and the RFG4 is plugged in 24 Stereo Reverb Control Controls the amount of delayed signal mixed with the main signal from the internal reverb Clockwise rotation of this control increases the amount of reverberation effect in the ignal The Reverb can be turned on and off using the RFG4 Foot Controller 25 Stereo Chorus On Off Indicator LED When lit the Stereo Chorus effect is activated FOR THE ML S Hookup to external mono or stereo power amplifier for extra power The GK LO BALANCED TRANSMORMER RECOMMENDED FOR LONG CABLE LENGTHS 000000 FF 000000 000000 HHS MLP is suggested EAT PE Switch must be STEREO EFFECTS Switch must be MIXER in the out 1 in the out STER position OR OOO STER positon 2 OR aot When using 96 666 Hookup to external Stereo Effects 0000 CH power amplifier
17. our gui tar trough the unit After you have become familiar with each one set to the desired position 6 Before setting up any effects adjust the Gain Level and set to the desired amount of gain The Gain Level will add saturation to the overdrive sound and should be set before engaging any effects 7 For the ML E only With your tone roughly set familiarize yourself with both the Reverb 24 and the Stereo Chorus 25 28 the same way as with the tone controls If you choose to use the effects set to desired levels 8 Try adjusting the Boost 3 in conjunction with the Gain Level If you have the footswitch hooked up try footswitching the Boost on and off to explore the two separate gain levels that can be achieved 9 The final adjustment on the amplifier is the volume level Turn up the Lead Master 6 to your desired playing level 10 Finally fine tune your level and tone with adjustments on your guitar CLEAN CHANNEL 11 Set Channel Select Switch 2 to CLN 12 Repeat Step 2 13 Set the Output Level 11 at the 2 o clock position Then while laying set the Volume 9 to desired playing level 14 Repeat Step 5 15 Repeat Step 7 16 Try playing with the Compressor 23 on and off to hear the effect it creates 17 The final adjustment on the amplifier is the volume level Turn up the Volume 9 to your desired playing level 18 Finally fine tune your level and tone with the adjustments on your guitar Note
18. our new amp if kept in a well constructed rack road case or GK Road Bag and handled with care should give you trouble free performance If operated with care our only maintenance should be occasional external cleaning Often when an electrical component provides poor erratic or no performance it is due to minor problems or irregularities which may be corrected easily by someone knowing very little about electronics We have provided the accompanying chart for your reference If you have any problems at all please check this first If your problem is major and there is definitely something wrong with the unit please refer to the list of Service Centers included with the paperwork in the packing box If necessary call your local GK Dealer for your nearest Authorized GK Service Center You may also call our Service Department at 408 441 7970 For reference to your nearest Authorized GK Service Center PROBLEMS LEDs light but no signal from Speaker Outputs Headphones Line Outputs or Balanced Outputs LEDs light tone and volumes turned up but no sound LEDs light tone and volumes up external speakers OK but no signal from output LEDs light tone and volumes up external speakers OK guitar cord OK guitar volume up and still no sound Channel Switching Boost Compressor Chorus or Reverb not functioning with footswitch plugged in and appropriate LED indicators on External effects hooked up through Effects Loop are distorting
19. phone Output 17 The Balanced Outputs 30 are not affected 12 13 13E Effects Loop Provides a means of adding in line effects The Send 12 can drive most standard foot and rack mountable effects see Sample Hookups The Return 13 on the ML S is switchable allowing you to return a regular mono signal with a standard 1 4 phone plug or a stereo signal using a stereo 1 4 stereo phone plug The Stereo Mono Switch 14 must be in the appropriate position to take advantage of the return s mono stereo capability If the send signal should overdrive the outboard effects causing unwanted distortion keeping the Output Level greater than the 1 o clock position will usually solve the problem The Effects Loop comes after the Channel 1 9 23 and Equalization 10 stages and before Output Level 11 and line outputs 15 amp 18 on the ML S and ML E The internal effects 24 28 and Balanced Outputs are also post effects Loop on the see Block Diagram 14 Return and Line Out Stereo Mono Switch MLIS only Affects the Return 13 and Line Out 15 In the Mono position the Return and Line Out accept a standard 1 4 phone plug and accept Return or provide Line Out a mono signal In the Stereo position the Return and Line Out accept a stereo 1 4 phone plug and accept Return or provide Line Out a stereo signal when using out board stereo effects through the Effects Loop If the Effects Loop and Line Out are not being us
20. tain your ultimate sounds We are proud of these amplifiers and feel they have passed their final test with your purchase We hope you enjoy this great guitar instrument and wish you the best in your musical endeavors Bob Gallien amp Rich Krueger STEREO R ONO INTERFACE TREBLE MIDDLE Lo BASS OUTPUT LEVEL RETURN LINE OUT RF2 OOOO 6 GALLIEN KRUEGER ML S FRONT PANEL UAL RISK OF FIRE OR ELECTRICAL SHOCK EXPOSE TO RAW OA RIGOLE DE CHOC NE PAS QUYRIA NE PAS EXPOSER DNE CONSULTER D PERSONEL ALPE GERAT MICHT FFNEN NICHT IN FEUCHTER ODER NASSER UMGEBUNG BETREIBEN FOR SERVICE FRAGEN WENDEN SIE SICH AUSSCHLIESSLICH AR AUTORISERTE TECHIAKER 20 3 2 1 5 250 id 190 25 8 3 04 250 NIVA ABOH ETSAN A ML S REAR PANEL MONO CAUTION NO USER SERVICABLE PARTS INSIDE REFER TO SPEAKEF gt UTPUTS O PERSONNEL FOR SERVICE TO REDUCE 4 aN TERNAL SPEAKERS 49 LOAD MIN 8N MIN W INTERNAL SPKR ON RIGHT LINE OUT POST OUTPUT LEVEL GALLJEN KRUEGER MONO POWER 12 WATTS 4 10 24 TRESLE 09 10 8 MIDDLE to STERE ESQUE DE CHOC NE PAS OUVRIR NE PAS EXPOSER A CONSULTER DU PERSONEL QUALIFE GERAT MICHT FFNEN WICHT IM FEUCHTER ODER WASSER UMGEBUNG BETREIGEN SERV
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