Standard Modifications

 

Master Volume Retrofit         $100

Half Power Switch 4x power tube amps only, requires retrofit    $65

Tone Stack / Gain Mod  Voice your fender normal channel like a Marshall   $50-100

Standby Pop Eliminator       $45

Reverb On Both Channels BF & SF & Reissue Fender amps          $125

Internal Power Soak Requires retrofitting a switch to chassis        $100

Slower Tremolo                   $60

Adjustable Bias  Will not work For Cathode Bias  $75

Adjustable Bias Balance Allows you compensate for mismatched tubes.  $75

Buffered Effects Loop for Marshall 1959, 1987, 2203 and 2204 zero loss and has switch for boost and cut and a Variable resistor to dial in perfect balance to meet your specific pedal board or effects unit. (requires drilling 3 holes in back of chassis)   $200

Passive Effects Loop  Requires drilling for 2x 1/4" jacks                 $150

Raw Switch Lifts tone stack and lets the amp work wide open very tweed like  $100

Mid Control Add a mid control

El34 to 6l6 Conversion   $60-$125

6l6 to El34 Conversion   $100-$175

 

Notes:

Discounts for doing multiple mods at a time.. Half the battle is splitting it open, so doing everything while its disassembled saves time..

A lot of these require cutting, drilling. modifying chassis or amp in some form. I try to be as discrete as possible many cases you can revert back to factory with out knowing it was ever altered. If I remove old parts I save them for you so you can tuck them away.