Rockfield Wales

The Doheny Audio "Rockfield Wales" Treble Booster is a modded take on the legendary Dallas Rangemaster, enhanced for modern flexibility and punch. It features an additional boost stage and a scoop filter that smooths out the nasal honk Rangemaster-style boosters often have, giving you a sweeter, more refined top end. A unique blend of germanium and silicon delivers vintage bite with modern clarity — and enough gain to push your valve amp into rich saturation.

For this exclusive batch, we’ve chosen our favorite Soviet-era NOS germanium transistor, paired with silicon for a tone that’s both stable and harmonically rich, designed to cut through any mix.

Featues: 

• Soviet NOS Germanium & Silicon Transistors - Classic warmth meets modern reliability.

• Additional Booster Stage - Stacked gain for extra punch and sustain.

• Scoopable Tone Control - Big Muff-inspired tone shaping to dial in your perfect EQ.

• Three Voicing Options: Original, Fat, and Mid - Switch between classic treble boost, fuller body, or a midrange-focused cut.

• Handbuilt Quality - Handcrafted in the USA for exceptional quality.

Limited Run – Only 2 Units Available!