Controls
- Frequency – Adjusts the center frequency (70Hz – 1.4kHz)
- Boost/Cut – Controls the amount of boost/cut of the selected frequencies
- Gain – Controls the overall output signal level
Specifications
- Designed for a 125B enclosure with top-mounted jacks
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| Weight | 0.275 oz |
|---|---|
| Dimensions | 1.525 × 1.95 × 0.5 in |
5 reviews for Mercurial Boost
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Clayton Higgins (verified owner) –
Sounds great and it’s going to be a lot more useful than I first thought it would be.
Dial it in so the guitar cuts through, or scoop the mids for a fat jazz tone.
It does “thump” when it’s turned on, so I added a 1.2M resistor from BO to GND. Easy fix.
bniderlaw (verified owner) –
Nice, clean build, as expected, and it does what it says on the tin, all the way up to treble boost. Adds negligible noise if any. Just finished it, so I haven’t yet figured out how I am going to use it, but I’m pretty sure that I will–sounds great. BTW, although it is supposedly designed for a 125B size enclosure, I built it in a 1590B with no problem, just no battery and side mounted jacks.
bniderlaw (verified owner) –
Had to drop it down a star because of the popping. I added a resistor to ground at the input, and cobbled in the AMZ 2-resistors-and-a-cap LDR substitution, and still, it pops. Not sure what else to do. But it still sounds great, and has a million uses–if only it didn’t pop!
joedaddio (verified owner) –
I love this pedal. It really gives you a lot of power in shaping your tone. This may be my only “always on” pedal. I don’t get any popping when turning the pedal on/off.
kroars (verified owner) –
Wow, just wow! I see now why they call this circuit the tone scalpel. Just knocked my old favorite boost off the board.