The MK.4.23 gives you from zero to +24dB of crystal clear boost to dial in to your liking. Noiseless boost with no signal distortion, zero tone coloration and quiet switching when you engage the circuit. YOUR TONE, only more of it without adding the noise typically associated with an increase in gain.

We also think you'll like what you see. The sleek, 16 gauge stainless steel body and white LEDs quite literally reflect premium materials and craftsmanship that will attract as much attention as your tone does. The small footprint and pedal board friendly design of the MK.4.23 means that you can add mega punch to your effects arsenal with minimum impact on pedal board or gig bag space.

Use the MK.4.23 as a straight forward boost pushing your amp, as a gain tool in front of your pedals, as a volume boost after your pedals or even in your effects loop on your amplifier for killer power amp boost!

The MK.4.23 can also be used directly to mixers/recorders with ultra high fidelity results. World renown producer/engineer Michael Wagener uses this unit at his WireWorld Studios (www.michaelwagener.com).

9V power supply required. We have an ultra quiet, DC regulated linear power supply available. See options below. (save $5.00 when purchased as an option with the MK.4.23)

For Guitar and Bass

Zero to +24dB boost

No signal distortion

No tone coloration

No phase reversal

Quiet switching

Hand wired and built in the U.S.A.

International Customers - We need to process your order via email or phone. Read this for details.