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You Are Here:   Modifications ... AMP MODIFICATIONS - Manufacture Page ... Marshall Mods ... Marshall EL34 100/100 Purist Mod

   Standard, Deluxe, Platinum "Purist" Mods & Upgrades 

 

Marshall EL34 100/100 "Purist" Modifications
Standard Mod™  $295.00  
Deluxe Mod™  $774 .00  
Platinum  Mod™  $1223.00  
Platinum  Mod™  $1223.00  International Customers!
Filter Cap Job
  $250.00  (see below)

 ***Pricing is per side***

 

"Improve the tone, feel & reliability of your Marshall EL34 100/100 Power Amp!"

 

  Standard Mod™  $295.00 (per side - see description)
Circuitry Modifications

Description / Specs:

  • EL34 100/100 power amps are two complete power amps in one enclosure
  • Purists Mods match the specs on the best sounding EL34 100/100 we worked on!
  • Upgrade of all coupling & bypass capacitors (same values as EL34 100/100) 
  • Original EL34 100/100 spec'ed values
  • Matching original EL34 100/100 voltages in preamp
  • Improved tone & feel
  • Improved playability - Easier to bend & vibrato
  • Highs are smoother & more pleasing - Not as harsh or bitey
  • Bottom end is more focused - Not as boomy or muddy 
  • Mids are more focused & clear
  • Improved note detail & clarity
  • The tone is more inspiring, smoother & more fun to play on
  • Please list "Purist Mod" in the notes section of the Mod-Form
  • Voodoo Mods™ retain your amps resale value verses decreasing it   

  

  Deluxe Mod™   $774.00 (per side - see description)
Standard Mod + Output Transformer = Deluxe Mod

Description / Specs:

  • Includes Standard Mod™ (see above)
  • Includes Upgraded Voodoo-Designed™ VA-100/100-O Output Transformer
  • $329.00 & $150.00 Installation fee (included)
  • EL34 100/100 power amps are two complete power amps in one enclosure
  • Increased sustain 
  • Improved harmonic detail 
  • Improved articulation & definition
  • Improved bass response
  • Increased even-order harmonics (IE: sounds much more musical)
  • Improved headroom   

 

  Platinum Mod™  $1223.00 (per side - see description)
Standard Mod + Output, Power & Choke Transformers = Platinum Mod

Description / Specs:

  • The ultimate in tone and performance!
  • Includes Standard & Deluxe Mods™ (see above)
  • Includes Upgraded Voodoo-Designed™ VA-100/100-P Power Transformer
  • $299.00 & $150.00 Installation fee (included)
  • EL34 100/100 power amps are two complete power amps in one enclosure
  • Vastly improved tone!
  • Deep & Rich low end - All low end is useable
  • Mids are perfectly focused
  • Highs are lush, open & bell like
  • Greatly increased sustain & harmonic content
  • Improved power regulation & Reduced noise and hum
  • Greatly improved playability - Smoother feel & easier to play
  • A must for touring musicians, engineers/producers & tone lovers alike!!
  • Platinum Mod™ will give you the best tone, feel and performance

  

  Platinum Mod™  $1223.00  (per side - see description) International Customers!
Standard Mod + Output, Power & Choke Transformers = Platinum Mod

  • The ultimate in tone and performance!
  • Includes Standard & Deluxe Mods™ (see above)
  • Same as USA Platinum Mod!
  • No need for step-up transformers that can harm your amp!
  • EL34 100/100 power amps are two complete power amps in one enclosure
  • Includes Standard & Deluxe Mods™ (see above)
  • Includes Upgraded Voodoo-Designed™ VA-100/100-P Power Transformer
  • $299.00 & $150.00 Installation fee (included) 
  • Choose your voltage - 100V, 220V, 230V, 240V
  • Vastly improved tone!
  • Deep & Rich low end - All low end is useable
  • Mids are perfectly focused
  • Highs are lush, open & bell like
  • Greatly increased sustain & harmonic content
  • Improved power regulation & Reduced noise and hum
  • Greatly improved playability - Smoother feel & easier to play
  • A must for touring musicians, engineers/producers & tone lovers alike!!
  • Platinum Mod™ will give you the best tone, feel and performance
  • Note - Please notate your AC voltage in the Notes Section of the Mod Form  

 

  Voodoo Filter Cap-Job  $250.00  (per side - includes labor)
Voodoo Maintenance

  • Standard Tube Amp Maintenance
  • Replace electrolytic capactors in the high voltage / B+ supply
  • Restores natural bottom end
  • Removes / prevents unwanted hum & noise
  • Restores amps natural bottom end / bass response
  • Restores tone and touch response 
  • Voodoo only used highest quality capacitors (F&T's, etc) 
  • Note - Please select "Yes" next to "Filter Cap Job" on the Mod Form
  • To avoid tonal degradation, unwanted hum & noise or potential failure in the power supply your amp should be re-capped once every 10 years 

After Voodoo Upgrades!™ 

 

 

"Get inspired - Upgrade your tone now!"  


 

Voodoo Amps® is the Leader in Tube Amp Mods & Upgrades

Pricing, features & specifications subject to change without notice

  "We have designed countless Mods since 1998. If you do not see your amp listed please contact us!"

 
 
 
 


 
 

 

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