Mercury Magnetics AC4TV Studio-Pro Error Notice from Mercury Magnetics, January 6, 2011:
Our manual for the AC4tv upgrade contained an error that must be corrected. The polarity of the electrolytic capacitor, located in position R5 of the PCB, was wrong. It showed the negative terminal of the capacitor facing to the left instead of the right (towards the Input Jack).

Mercury Magnetics Studio Pro Upgrade Kit  for the VOX AC4tv amp (combo or head). Includes everything you need to make the Upgrade (except amp and tools):

• Mercury Axiom Power transformer
• Output transformer & Choke
  
• a parts bag of all new and changed components
• CD-ROM with detailed "how-to" instructions, diagrams and schematics.

Like any sought-after amp Mercury's AC4tv Upgrade radiates a timeless and refined tonal range that just begs you to be explored. But that's only the appetizer.... Mercury's Upgrade gives you so much more of the cool stuff that it'll make any player (or recording engineer) stand up and take notice --

• Boutique-quality -- all the chime and tonal distinction that made VOX amps unique
• Gobs of headroom -- time to un-mothball those pedals, this amp loves them
• A radically lowered noise floor -- makes your amp ideal for recording
• Cutting-edge Mercury Axiom transformers -- real tone-based designs, THE best money can buy
• And a very unusual NEW trick feature -- a re-modulated 12AX7 tube that emulates the EF86!

The do-it-yourself amp Upgrade

The Upgrade Kit includes everything you need super-charge your stock AC4tv amp. We make it both fun and easy-to-do with detailed step-by-step instructions -- virtually holding your hand through the entire process.

Not up to doing the Upgrade yourself? No problem, we'll put you in touch with a qualified amp tech who can do the job for you.

Now you've got THE TONE of the original VOX amps!

Experience the lush vintage tones that only Mercury transformers can give your amp. Whether you use your new Upgraded VOX AC4tv for gigging or recording or just for practice, take it to the pro-level with Mercury!

PLEASE NOTE: This is a specially developed and priced kit. At this time we are not selling the components individually. THESE KITS ARE AVAILABLE IN THE USA/CANADA 120V VERSIONS ONLY. AT THIS TIME THERE IS NO EXPORT VERSION.

*BIG NOTE: The AC4TV Mercury's kit does not include the amplifier -- only the components necessary for the upgrade of an existing amp.

CAUTION! The voltages in your amplifier can be dangerous. Transformers and chokes are not user serviceable parts. Installation of these components should always be performed by an experienced technician. The simple ability to use a soldering iron is not enough to qualify a "do it yourself person." Those who are inexperienced in working with electronic circuits should never attempt to service their amplifier. Household line currents can be deadly!! Transformers, chokes and large filter capacitors can store a dangerous charge for several days or more after the amplifier has been unplugged. Never touch the terminals of such devices without being certain of their charge status. Risk of shock and damage to equipment may result from mishandling and/or improper use of these components. Please use common sense and always think safety first. After all, tone is most enjoyed when you are alive to hear it.