Get the Legendary British Chime: Tsakalis Audioworks Launches the AC Master Overdrive & Boost

Guitarists chasing the iconic “British Invasion” tones of the 1960s and 70s have a new holy grail for their pedalboards. Tsakalis Audioworks has officially released the AC Master, a dual-circuit stompbox designed to replicate the specific magic of a cranked Vox amplifier pushed by a vintage Range Master-style treble booster.

Whether you are looking to emulate the orchestral sustain of Brian May or the aggressive, biting blues-rock of Rory Gallagher, the AC Master promises to deliver those boutique tones in a compact, handcrafted format.

Two Classic Circuits in One Box

The AC Master isn’t just a simple overdrive; it is a sophisticated 2-in-1 tone machine. By combining two independent sections—a Vox-inspired overdrive and a Range Master-style booster—Tsakalis Audioworks allows players to use each effect separately or stack them for maximum saturation.

This flexible routing means the pedal can transition seamlessly from crystal-clear “edge of breakup” tones to the aggressive, harmonically rich saturation found on classic rock records.

The AC Section: Vox Versatility

The heart of the pedal is the AC section, which emulates the distinct tonal character of legendary British tube amps. It features two blendable channels:

• Top Boost Voice: Delivers the famous “bell-like” high-end chime. It features a full EQ suite including Volume, Bass, Treble, and a dedicated Tone Cut control (essential for taming high-end frequencies just like the original amplifiers).

• Normal Voice: Offers a warmer, fatter response with a simpler control layout, perfect for thickening up single-coil pickups or providing a foundational crunch.

The Boost Section: The Secret Weapon

The independent boost section pays homage to the Range Master, the germanium-based treble booster that defined the sound of the 70s. While it works wonders as a solo boost to help you cut through a mix, the “real magic” happens when it hits the AC section, adding focus, presence, and that signature “singing” sustain.

Handcrafted Quality

True to Tsakalis Audioworks’ reputation, each AC Master is handcrafted in Greece. The pedal is built to professional standards, ensuring low noise floor and tour-ready durability.

Pricing and Availability

The Tsakalis Audioworks AC Master is available now through authorized dealers and the official Tsakalis website.

• Price: $245 / £220 / €249

Available at Thomann

FAQ: Everything You Need to Know

Can I use the Boost and Overdrive separately?

Yes. The AC Master features independent switching for both the AC (overdrive) and Boost sections, allowing you to use it as a standalone booster, a standalone overdrive, or both combined.

Does it require a specific power supply?

The AC Master typically runs on a standard 9V DC center-negative power supply. (Always check the manual for specific current draw requirements.

Is this pedal good for metal?

While the AC Master excels at classic rock, blues, and indie tones, it is not a high-gain “metal” pedal. However, when stacked with other pedals or a dirty amp, it provides incredible mid-range focus that can suit heavy alternative styles.

What makes the “Tone Cut” knob different from a Treble knob?

Following the design of classic British amps, the Tone Cut works in the power section of the circuit to roll off high-end frequencies, offering a smoother way to tame “fizz” compared to a standard EQ.

The Verdict

Pros:

• Authentic Brian May/Rory Gallagher “chime and grind.”

• Highly versatile dual-channel AC section.

• The Range Master-style boost is a “set and forget” tonal enhancer.

• Premium handcrafted build quality.

Cons:

• Premium price point (though you are getting two pedals in one).

• May be overkill for players who don’t like the specific “mid-forward” British voicing.

Final Thought: If you want to transform a sterile, clean amp into a breathing, touch-sensitive British rig, the Tsakalis Audioworks AC Master is one of the most convincing “amp-in-a-box” solutions on the market today.