I built a Triple Booster from them with a few of my own modifications. It's one of the best pedals I've ever owned. True bypass in all three channels, and strangely, just enough ground so that even in bypass there is less noise in the signal chain than with the pedal completely removed (hint: imperfect guitar cable grounding). To be candid, I'm not really a fan of the linear boost in it. It's a fine example of what a linear boost should be, I just don't like linear boosts.
The clean boost, however, is transparent and LOUD, noticeably louder than other boutique clean boosts I've tried. Running the clean boost up about 70-80%, with my Triple Rec's Channel 2 set to Modern, gain anywhere from 11:00 to 1:00, treble at 2:00, mids at noon to 2:00, bass at noon, with Bold/Tube rectification gets me the most delicious combination tone. It's kind of a cross between mostly a typical Recto tone with a touch of mid-80's high gain modded tone.
You'll notice there's not a lot of overall bass in my tone straight from the amp. That's because not only is the electric guitar an instrument that inherently owns, dominates and shines in the mid frequencies, the bass frequency curve response straight out of the Triple Rec is not to my particular taste. Way too much emphasis on 200 Hz (the infamous "mud" frequency to recordists) and surprisingly little representation at 100-120 Hz, where all the good, percussive bass response is, when not overdone.
The Germanium boost channel of the Triple Booster gives you three options by way of a separate switch: classic treble boost, midrange boost, and fullrange boost. I modified mine such that the treble boost governs the frequencies that my Keeley Time Machine treble boost does, since I prefer that pedal's treble boost tone to the default setting of the Triple Booster. The mid-boost setting is advertised to give you a Brian May kind of tone, and it does get you closer, but there are other factors to Brian's tone so it's by no means spot-on. The full-range boost setting is my least favorite. It treats the entire range of signal to the Germanium diode's unique flavoring. Unfortunately, what produces a beautiful singing quality to higher frequencies also produces a blurred, somewhat muddy tone the lower the frequency that passes through it. IMO, these things really shine as treble boosts and that's how they should be best used.
What I'm working on next in this vein is to design my own pedal which lets you combine, as well as just choose between, the Dallas Rangemaster treble booster tone and the clean boost.
