Peavey Programax 10 User's Manual
Contents
1. Maximum Input Level 8 dBV 2 5 V RMS Pre Amp Low Gain Input 6 dB Pad Impedance High Z 94K ohms Nominal Input Level 22 dBV 80 mv RMS Minimum Input Level 40 dBV 10 mV RMS Maximum Input Level 10 dBV 3 V RMS Channel Hum amp Noise Nominal Input Level 20 Hz to 20 kHz unweighted 75 dB below rated output power Equalization Low Mid Shift amp High Passive Type EQ Bright 6 dB 2 kHz Post EQ Patch Input Output with Level Control Stereo Phone Jack Tip Send Ring Return Function High Level Post EQ Signal Send and Return Load Impedance 1K ohms or greater Nominal Output 0 dBV 1 0 V RMS Maximum Output 18 dBV 8 0 V RMS Input Impedance High Z 5K ohms minimum Input Level 0 dBV 1 0 V RMS Switching Jack providing Patch Output to Patch Input connection when not used Footswitch MIDI In Thru for complete selection of Pro gram Presets EXPOSURE TO EXTREMELY HGH NOISE LEVELS WAY CAUSE A PERMANENT HEARING LOSS NDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO NOISE INDUCED HEARING LOSS BUT SREY Bagvone WILE Lose SOME HEARING IF EXPOSED TO SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT TIME She US COUERNMENT S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION OSHA HAS SPECIFIED THE FOLLOWING PERMISSIBLE NOISE LEVEL EXPOSURES DURATION PER DAY IN HOURS F THE aec OVER THE Unt a rasa ES lust ac we SOUND LEVEL anA SLOW RESPONSE RE 4 ae CAUTION 2 a DE ADEO SONER RESER FOR PLAV2. user input programs will be retained in memory for approximately three weeks Factory input programs will be retained indefinitely If the Programax 10 is turned off for a prolonged period of time several weeks or longer all user input programs may be lost from memory If this occurs the amplifier will automatically revert to the original factory input programs It is recommended therefore that any user input programs be recorded in writing in case the need for reprogramming arises Under conditions of normal use the internal battery should have a life expectancy in excess of five years Battery failure is indicated if the Programax 10 refuses to retain user created or user modified programs during a power off power on cycle Since the battery is an integral component of the amplifiers circuitry replacement of the battery should be performed only by an Authorized Peavey Dealer or qualified service technician Program Deletion Return to Factory Preset Programs Capability is provided to simultaneously delete all user input programs from the amplifier s memory When this is done the Programax 10 will automatically revert to the ten original factory programs NOTE THIS PROCEDURE WILL CAUSE DES TRUCTION OF ALL USER INPUT INFORMATION The following procedure will clear user input memory 4 Turn the amplifier off 2 Press and hold BOTH the BANK A B key M and the MAN key T wk Y Z AA 3 While holding both keys in position turn the ampli
3. 2 o ss ss ss s 7s a as o o FLAT CLEAN PROGRAMMAX 10 SPECIFICATIONS Saturation 0 Pre EQ Patch Input Output Post Gain 10 Stereo Phone Jack Tip Send Ring Return Power Amplifier Section Low EQ 0 Function Low Level Pre EQ Effects Pedal Frequaricy Response Mid EQ 0 Send and Return TO it ds 60 He to 18 kHz 200 into 4 High EQ 0 Load Impedance 10K ohms or greater ohms Presence 0 Nominal Output 14 dBV 0 2 V RMS IPE tone Reverb 0 Input Impedance High Z 220K ohmsminimum nas to clipping 1 KHz 120 VAG line Master Volume 10 Input Levet 14 dBV 0 2 V RMS E ea Bright On Switching Jack providing Patch Output to Thick On Patch Input connection when not used External Speaker connection not recommended Total Harmonic Distortion Less than 0 2 100 mW to 200 W RMS 60 Hz to 10 kHz 4 ohms Typically below 0 1 Intermodulation Distortion Less than 0 2 100 mW to 200 W RMS 60 Hz to 5 kHz 4 ohms Typically below 0 1 Hum amp Noise More than 90 dB below rated power Slew Rate Greater than 10 V uSec Power Consumption Domestic 600 waits 50 60 Hz 120 VAG Preamp Section The following specs are measured 1 kHz with the controls preset in the following manner Nominal Levels are with Pre Gain 5 Minimum Levels are with Pre Gain 10 Pre Amp High Gain Input No Pad Impedance High Z 47K ohms Nominal Input Level 28 dBV 40 mV RMS Minimum Input Level 46 dBV 5 mV RMS
4. manual mode and all controls will be operating at their indicated values Adjustment of any control or controls will create a new program When the new program is satisfactorily adjusted it may be stored in any location Program Storage Any program new modified or existing may be stored in any chosen location To store a newly created or modified program decide which bank and program locations will be used Press the Bank A B Key to select the correct bank Then press the correct Program Key and HOLD THE KEY IN UNTIL THE LED STOPS FLASHING about three seconds The program is now stored in the selected location To move an existing program to anew location the program must first be recalled see Program Recall then it may be stored in the new location in the manner described above It should be noted that any program so moved will now exist in both the old and new locations It should also be noted that any time a program is stored into a particular location any information previously stored in that location will be erased Care should be taken to ensure that a valuable program is not inadvertently destroyed by careless program storage Program Retention The Programax 10 contains a special rechargeable internal battery to protectand maintain stored programs while the amplifier is notin use When the amplifier is in use power on an internal circuit automatically recharges the battery During periods when the amplifier is not in use
5. not active unless the EFX2 indicator R is illuminated on the front panel Post EQ Level Control Y The Post EQ Level Control regulates the return level of signals routed through the Post EQ Patch Jack X Someeffects devices may not provide unity gain signal input and output levels may not be equal and the Post EQ Level Control may beused to restore gain balance It should be noted that the Post EQ Level Control is operable whenever the EFX2 effects loop is enabled The control will therefore affect signal levels even if no effects devices are connected to the amplifier If no post EQ effects are to be connected to the amplifier itis recommended that the control be rotated to its full clockwise position This setting will prevent the possibility of gain reduction if the EFX2 effects loop is inadvertently enabled MIDI in Socket Z The MIDI In Socket is a standard DIN connector which allows for a MIDI controller interface to the Programax 10 When such an interface is established programs stored within the amplifier may be recalled from any remote MIDI controller such as the Peavey RMC 2000 The Programax 10 is a MIDI slave device only it is not intended to control other MIDI compatible devices The amplifier s microprocessor can receive information on Channel 1 only and will select any of the ten stored programs in response to commands MIDI Preset Select 1 through MIDI Preset Select 10 Any other codes will be ignored by the internal micr
6. Gl Programax 10 OPERATING GUIDE CAUTION TO PREVENT THE RISK OF FIRE AND SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE DO NOT REMOVE FROM CASE NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL CLASS B COMPUTING DEVICE INFORMATION TO USER This equipment generates and uses radio frequency energy and if not installed and used properly that is in accordance with the manufacturer s instructions may cause interference to radio and television reception It has been type tested and found to comply with the limits for a Class B computing device in accordance with the specifications in Subpart J of Part 15 of FCC Rules which are designed to provide reasonable protection against such interference in a residential installation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures reorient the receiving antenna relocate the equipment with respect to the receiver move the equipment away from the receiver plug the equipment into a different outlet so that the equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additio
7. I jean UIE WHICH MAY Ay os ee S e a A ge snes irtormation an grounding we for cur fee booklet ESE A ee ees ae tate e ta Trsunitshoudbe eneckesby s qualita serice teennican Brogue Oey at camions 1 ime cperatng insirucsons ana on ime baee ot ine une All operating instructions houia be followed Tnu produet snovia te ocareo 9 mats positon gops not MEAG E wel er pecan ma butter encase Wa wi impede me tow of cooling ai 1 This predvetaroule nat be piaco near a source ot hest surn arve olen radiator or another Nes procucing 1h The scwersupety cora or plug nas pean damaged Anning nas fates or been sited rio Ie Uni E PR Unt ase not operate cavecy 5 The unt sas been dropped fe enclosure damaged Due to our efforts for constant improvement specifications aro subject to change without notice PEAVEY ELECTRONICS CORPORATION 711 A Street Meridian MS 39301 U S A Telephone 601 483 5365 Telex 504115 80300209 1986 Printed in U S A 1 86
8. clockwise will increase the effect of the Saturation circuit upon the amplifier s sound It must again be noted that the three Gain Block controls interact When using Saturation the Pre Gain Control C must be adjusted to a level sufficient to adequately drive the Saturation circuit Since increasing the Pre Gain will cause the amplifier s volume level to increase the Post Gain Control E will also require adjustment to control relative volume levels Post Gain Control E Within the Programax 10 operation of the Post Gain Control difters somewhat from its traditional role as the overall volume control for the amplifier In a typical nonprogrammable Peavey amplifier the Post Gain Control is used to adjust the overall volume level of the amp In the Programax 10 however overall volume is controlied by the Master Volume Control L The Post Gain Control therefore assumes the function of a RELATIVE volume control and is used to balance the level of each individual program relative to the levels of other stored programs Rotating the Post Gain Control clockwise will increase the volume of the amplifier but the volume of a program should be compared to the volumes of other programs to achieve the correct balance between programs Such comparison will allow relative levels to be established with a high degree of precision The need for experimentation and comparison to determine the optimum control positions within the Gain Block cannot be overemp
9. e and is designed to accommodate professional line level effects devices Signal return levels for Effects Loop 2 are adjustable on the rear panol This adjustment capability allows gain differences caused by effects devices to be minimized This effects loop is a programmable parameter and may be enabled as a part of any program MAN Key S The MAN Manual Key provides the means of overriding the programmed functions of the amplifier When the MAN key is pressed all controls are returned to their manual actual setting positions A new program may now be created without altering any stored programs Please note that it is NOT necessary to place the amplifier in Manual mode in order to alter any control setting All controls are accessible at any time and changing the setting of any control will cause that control to override its programmed setting The MAN Key is simply a way to gain access to all controls immediately The Manual Function is NOT a programmable parameter MUTE Key T The MUTE Key is used to temporarily silence the amplifier without modifying any sound or system setting Depressing the MUTE Key a second time will return the amplifier to its former setting The MUTE Key provides a convenient way of placing the Programax 10 in stand by mode For obvious reasons the MUTE function is not a programmable parameter Ground Lift Switch U This switch is the three position type with the center 0 position completely
10. fier on REAR PANEL FEATURES Pre EQ Patch In Out Jack W This stereo type jack allows access to the Pre EQ effects loop Effects Loop 1 This effects loop is low level 0 2V RMS 14 dBV and is intended to drive effects devices and pedals primarily designed for instrument level signals Most small battery operated or passive devices fall into this category To connectan effects device to the Pre EQ effects loop a shielded stereo Y cord should be used The SEND signal is presentat the TIP of the jack and the RETURN signal is present at the RING of thejack The SEND signal should be routed to the input of the effects device and the RETURN signal originates at the device s output Please note that the Pre EQ effects loop is not active unless the EFX1 indicator Q is illuminated on the front panel Post EQ Patch In Out Jack X This stereo type jack allows access to the Post EQ effects loop Effects Loop 2 The Post EQ effects loop is designed to accommodate line level effects devices and provides a suitable signal 1 0V RMS 0 dBV to drive such devices As previously discussed in the Pre EQ Patch section a shielded stereo Y cord should be used to connectan effects device The SEND signal appears at the TIP of the jack and the RETURN signal is present at the RING of the jack Level balancing of the Post EQ effects loop is accomplished by adjusting the Post EQ Level Control Y Please note that the Post EQ effects loop is
11. g to that program will determine the relative position of each control Program creation storage and recall are easily learned The Programax 10 is supplied with ten programs in place which were input by Peavey factory technicians during manufacture of the amplifier Although these factory programs presenta wide range of tonalities they may not be perfect for every player s needs As a Programax 10 owner it will be necessary to learn howto quickly recall store modify or create a program Program Recall To recall any program which exists in memory simply press the Bank A B Key M until the LED above the correct bank lights Then press and quickly release the appropriate Program Key 1 through 5 to select the program location in which the program is stored This action two keystrokes will automatically recall any desired program The amplifier will now perform in accordance with the information within that program regardless of the physical position of the amplifier s controls Any program may be recalled by this same procedure press the appropriate Bank and Program Keys and the program is recalled When recalling another program within the same bank it is not necessary to reselect the bank For example if program B2 has previously been selected and program B5 is desired it is not necessary to reselect the Bank Simply pressing Program Key 5 will recall the desired program Program Modification Any stored program may be easily
12. hasized either for establishing a new program or for fine tuning existing programs Equalization Controls The Programax 10 features four bands of equalization which provide virtually unlimited tonal control The Low Mid and High EQ bands are of the passive type preferred by many guitarists while the Presence EQ band is active Low EQ Control F The Low EQ Control adjusts the tonality for the amount of smoothness and offers extended bandwidth within the lower frequencies of the tonal range Care should be taken to not overboost with this control to avoid muddiness and loss ofheadroomin the power amp Extreme overboosting of bass frequencies tends to detract from the projection capability of the amplifier and may reduce the clarity of lead guitar lines Mid EQ Control G The Mid EQ Control adjusts the tonality in the vital midrange frequencies Rotating the Mid EQ Control clockwise increases the midrange for the greater degree of fat tonalities The Mid EQ Control operates in conjunction with the Mid Shift Control H described below Mid Shift Control H The Mid Shift Control determines the frequency at which the Mid EQ Control G operates It is therefore necessary that these two controls be adjusted relative to each other to achieve optimum tonal balance In operation the Mid Shift Control will determine WHERE the midrange is affected while the Mid EQ Control will determine HOW MUCH equalization is utilized Guitarists desiring br
13. ight clean sounds will generally use little or no midrange equalization while those desiring thicker fatter sounds will greatly benefit from more midrange equalization High EQ Control I The High EQ Control varies treble frequencies between the midrange and presence equalization bands Turning this control clockwise will increase the amount of treble frequencies in the overall tonal spectrum Excessive high equalization can adversely affect the amplifier s tonality if a smooth distorted sound is desired When working with programs containing significant amounts of Saturation High EQ Contro settings should be reduced to avoid stridency or harshness of the overall tone Presence EQ Control J The Presence EQ Control offers both cut and boost capability and regulates the uppermost range of equalization Within the Programax 10 s circuitry the Presence circuit is the final stage of equalization and is most useful for determining the final edge of the desired sound As with the High EQ Control excessive Presence boost can adversely affect the overall sound of the amplifier when smooth distorted tonalities are desired Master Reverb Control K The Master Reverb Control determines the amount of delayed signal returned into the main signal from the internal reverb system Clockwise rotation of the Master Reverb Control increases the amount of reverberation effect in the signal Master Volume Control L The Master Volume Control is the f
14. inal contro regulating the amplifier s gain and is used to adjust the overall volume level of the amplifier It should be noted that settings of the Master Volume Control are NOT stored within the parameters of any given program This allows the player to vary the overall volume of all programs simultaneously without disturbing the balance of control settings established within or between any stored programs Program Control Switch Matrix The Program Control Switch Matrix is an array of 12 push button switches which are used to store recall or modify programs within the Programax 10 The upper row of six switches consists of the Bank A B Switch M and the five Program Keys N numbered 1 through 5 The lower row of switches control various programmable functions including preset equalization curves Bright and Thick access to the amplifier s two effects loops manual override capability and the Mute standby function Bank A B Select Switch M The program storage capability of the Programax 10 is arranged in two banks each containing five storage locations Any storage location will have both a bank letter A or B and a program number 1 through 5 For example a program labeled B3 will be found in Bank B program location 3 Pressing the Bank A B Key selects either bank A small LED above the letters A or B will light to indicate which bank has been selected Since either Bank A or Bis always in use one LED will always be illuminated the
15. modified simply by altering the position of the appropriate controls Remember that when a program is recalled the positions of the amplifier s controls have no effect on the performance of the amplifier UNTIL A CONTROL S POSITION IS ALTERED Whenever the Programax 10 senses that a control is being moved the amplifier will automatically cause the control s actual position to override the stored program information FOR THAT CONTROL ONLY For example suppose that a bit more Saturation is desired within a particular program Simply turn the Saturation control until the desired setting is reached The program is now modified and is ready to be stored in its altered state When a program is being modified only those controls which have been physically moved will change in value if a control s position has not been altered the programmed values will be unchanged Whenever a program is modified in any way the LED indicator on the Program Key will begin to flash on and off To store a modified program in the same location press the program key and hold it until the LED stops flashing To cancel any modifications and return to the original program press the program key and quickly release it Program Creation Programs may be created from scratch by adjusting the amplifier s controls to the desired positions To create anew program first press the MAN Key S on the Program Control Switch Matrix This will place the amplifier in
16. nal suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This bookletis available from the US Government Printing Office Washington DC 20402 Stock No 004 000 00345 4 General Description The Programax 10 is a self contained guitar amplification system which represents a state of the art unification of advanced digital and analog design technologies The intelligence of microprocessor control the precision of digitally controlled analog signal processing and the rugged reliability of solid state linear power devices combine in the Programax 10 to provide the performer with the ultimate in both tonality and convenience The Programax 10 is configured in such a manner that any combination of control settings may be stored in the amplifiers internal memory to be recalled at a later time at the player s discretion Recall of stored programs may be accomplished remotely by means of the Peavey RMC 2000remote MIDI controller or by a number of other available devices The Programax 10 is capable of delivering over 200 watts RMS to its internal Scorpion speakers and incorporates many popular features found on other Peavey professional amplifiers Our unique gain block circuitry incorporating Peavey s patented Saturation circuit allows the player total command of the amplifier s distortion and compression characteristic
17. oprocessor MIDI Thru Socket AA The auxiliary MIDI output is provided to allow chaining of MIDI compatible devices without the use of Y type cables or connectors Any and all control signals received at the MIDI In Socket Z will be routed unaltered to the MIDI Thru Socket Line Cord BB For your safely the Programax 10 incorporates a three wire AC mains cable with proper grounding facilities Do not remove the ground pin under any circumstances If it is necessary to use the amp without proper grounding facilities a suitable grounding adaptor should be used Much less noise and greatly reduced shock hazard exist when the unit is operated with properly grounded receptacles FACTORY PROGRAMS PRE SAT Post Low mo sHiFT Hi Pres REV BAT THICK At 2tols s ss oo s sa ml o BRIGHT amp FAT CLEAN A2 as 10 3 25s 7 l ss a m jof SUPER CRUNCH DISTORTION AS 2 ol s ssleo w s o le CHUNKY CLEAN m 2 4 2 loo s as a tw TOUCH SENSITIVE DISTORTION AS 2 o ss 7 7 rol 5 12 as w CLEAN PRESENCE PLUS B1 2 o 7s 1 1 20 5 ofss o 0 DARK CLEAN JAZZY B2 z os e 7 ols olo olwm SUPER COMPRESSED REVERB DISTORTION BS 2s o ss s o 3o s a m o MID NOTCH CLEAN Ba a w 2s 2s 1 sofas s o o MID BOOST DISTORTION B5 2 o a ss es so s 6 w o BRIGHT DRY CRUNCH powenup
18. reby providing a pilot light function for the amplifier Program Keys 1 Through 5 N The five Program Keys serve to recall or store programs within theamplifier s memory To recall any stored program first select the correct bank by pressing the Bank A B Key M until the desired LED is illuminated Then press the appropriate Program Key A small LED will illuminate to show which program has been selected To recall any program select the desired bank then press and QUICKLY RELEASE the desired program key To store a program select the desired bank then press the desired Program Key and HOLD IT IN UNTIL THE LED STOPS FLASHING The program is now stored in the selected location At any time LEDs will be illuminated on both the Bank A B Key and one Program Key If a program has been recalled but not modified the Program Key LED will remain constantly lit As soon as the Programax 10 detects a change in a program the LED on the Program Key will start to flash off and on This flashing LED servesas a reminder that a program has been modified A modified program can be stored as previously described BRT Key 0 The BRT Bright Key adds a preset high frequency equalization curve or brightness boost to the sound of the amplifier An LED onthe BRT Key will illuminate when the key is pressed or when this parameter is being used within a program Function of the High EQ Control I and Presence Control J may be somewhat reduced when the B
19. removing the internal grounding capacitor from the circuit The center 0 position is normally recommended for situations where the AG power receptacle is known to contain a properly grounded third wire If a properly grounded AG mains supply is not available a suitable ground lift adaptor should be used The and positions are used to ground the amplifier properly when only two wire AC service is available One of these positions will yield the lowest amount of residual hum or popping when the instrument is touched NOTE THE GROUND LIFT SWITCH IS NOT OPERATIONAL ON 220 VOLT AND 240 VOLT EXPORT MODELS Power On Off Switch V The Power On Off Switch is a simple two position switch which supplies AC power to the amplifier The Programmable Amplitier The Programax 10 is the first Peavey amplifier to be equipped with program storage and recall capability In order to achieve optimum performance from your Programax 10 it is necessary to understand the unique capabilities of the amplifier Any combination of control settings may be stored in one of the amplifier s ten storage locations When a program is stored a digital value is assigned to the relative position of each control it is these digital values that are remembered by the amplifier s memory circuits Program information includes values for all controls except the MAN and MUTE keys and the Master Volume Control When a program is recalled the digital information correspondin
20. right feature is in use The Bright function is a programmable parameter and may be stored as a part of any program Thick Key P The Thick Key adds a preset mid band equalization boost and is commonly used in conjunction with high level Saturation Control D settings When the Thick function isactivated the high frequencies may become less pronounced due to the ful Iness added by the boosted midrange frequencies In addition normal function of the Equalization Controls particularly the Mid EQ and Mid Shift Controls may be less effective when the Thick function is in use The Thick function is a programmable parameter and may be stored as a part of any program EFX1 Key Q The EFX1 Effects Loop 1 Key adds a pre EQ effects loop to the circuit Access to this effects loop is via the Pre EQ Patch Jack W on the rear panel Please note that this effects loop operates at low voltage levels 14 dBV and is designed to drive low level effects devices Most battery operated effects devices fall into this category For best results in effects loop selection consult the operating instructions for the effects devices to be used This effects loop is a programmable parameter and may be enabled as a part of any program EFX2 Key R The EFX2 Effects Loop 2 Key adds a post EQ effects loop to the circuit Access to this loop is via the Post EQ Patch Jack X on the rear panel This effects loop operates at line level voltage 0 dBV and abov
21. ruments especially when maximum distortion and overdrive are desired The Low Gain Input exhibits approximately 6 dB less gain and is intended primarily for use with instruments which have extremely high output pickups Hot pickups will sometimes prematurely overload the High Gain Input Jack causing an unpleasant tonality and harsh overdrive characteristics Experiment with both Input Jacks to determine which will best suit your own individual playing style and your instrument s output characteristics Gain Block C D E The Programax 10 has been designed using Peavey s unique Gain Block preamplifier circuitry The Pre Gain Saturation and Post Gain Controls operate interdependently to create a full spectrum of sound from crisp clean response to fully overdriven distortion Experimentation will be required to determine the relative levels of these controls necessary to produce the most pleasing tonalities Pre Gain Control C The Pre Gain Control is similar to a conventional volume control in that it is the first level setting device in the system Rotating the control clockwise increases the gain in the preamp section therefore raising the volume level of the system Saturation Control D The Saturation Control is used to set the operating point of Peavey s unique Saturation circuitry Saturation is a highly sophisticated circuit which simulates the gain compression and rich harmonic overload of vacuum tubes Turning the Saturation Control
22. s A wide range of equalization controls including Mid Shift and active Presence provide total control over the unit s tonal capability The proven full range spring reverb system utilizes current source drive for maximum damping and performance Ease of operation with effects devices has been optimized by the inclusion of two independent effects loops both of which can be included in program parameters Towithstand the rigors of night after night professional usage the chassis and speakers are housed in a cabinet constructed of 3 wood covered with the strongest available 34 ounce vinyl Ruggednessis enhanced by the use of heavily plated steel glides and corners and by a steel reinforced carrying handle All internal components have been carefully selected for outstanding durability and superb performance The Programax 10 offers performance capability previously unavailable in a guitar amplifier In order to achieve maximum performance and enjoyment from your amplifier it is necessary to fully understand the function of each control Please read this operating guide carefully and completely and keep it available for future reference 7 O eo srona FRONT PANEL FEATURES Input Jacks A B The Programax 10 is equipped with two Input Jacks which differ in sensitivity and impedance The High Gain Input A has considerably more sensitivity than the Low Gain Input B and is the input normally used with most inst
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