Think even-order harmonics... better note articulation... better low-end response... richer overall tone... all the good stuff that inspires you, from an amp you'll truly enjoy! The XLG Upgrade Kit will make an unbelievable improvement to your Blackheart "Little Giant."

More good news. Our XLG Upgrade Kit requires only a transformer swap, and a few minor circuit board modifications. That's it. You can do it yourself, or we can refer you to an amp tech who can make the upgrade  for you.

The Upgrade is very straight-forward and easy to do for anyone who can read basic schematics and understands electronics 101. If you don't, we urge you to take the kit to a qualified amp tech, or call us for a referral to one who knows his stuff.

The Mercury XLG Upgrade Kit includes:

• Mercury Axiom® power transformer.

• Mercury Axiom® output transformer.

• Mercury Axiom® Mini-Choke™.

• Other parts necessary to make the Upgrade.

• Mercury Magnetics "Equipped with" metal plate.

• Fully illustrated color manual, with wiring schematics on CD-ROM.

XLG UPGRADE KIT -- Complete Mercury kit including transformers, components and how-to instructions for amp head (BH5H) or combo (BH5-112) -- 4, 8 & 16 ohm taps.

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 Blackheart XLG 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.