“Sometimes the best idea comes with a beer! I was relaxing one evening after a day of fixing amps and guitars. A customer emailed me – they’d fitted an active boost to their guitar but the guitar had become much more noisy.”
The K-Boost is a discrete class A FET Booster that gives the best of active and passive tonal control, with a true bypass-able 4dB flat boost that drives your valve amp a little harder and eliminates the problems caused by cable capacitance.
A transparent booster from 20Hz to 20kHz, the K-Boost pairs brilliantly with low and medium gain valve/tube amps set up ‘just on the edge’ of breakup. Simply flick the switch to subtly move from crystal clean tone to mild overdrive.
As an ‘always on’ booster, the unit completely eliminates the problem that passive pickups experience with all but the shortest of cables. (see What is cable capacitance?).
The K-Boost has plenty of clean headroom and responds excellently to dynamic subtleties and changes in picking attack.
It can be used on individual pickups to allow pickup combinations normally rendered unusable by the volume difference.
Why is it in a beer bottle top?
More gain normally means more noise. The bottle top and a carefully designed PCB provide a 360 degree shield that protects the K-Boost from electrostatic noise. In combination with a properly shielded guitar, this reduces the various interference that are particularly annoying when recording. Also, it’s cool! If you want your K-Boost built with your own beer bottle top, send it in!
Available as a wiring harness upon special order (contact for details).
Sound Clips + Videos
Preamp Specification – (what does this mean?)
Input impedance: >2MΩ
Output impedance: 5.5kΩ
Frequency response: flat 20Hz-20kHz