Ace Amplification Colt
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Manufacturer Information
Ace Amplification
https://www.aceamps.com
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A boutique head with a "classic" vibe, designed in a studio-friendly format
The Ace Amplification Colt positions itself as a boutique, dual-channel alternative to iconic British heads whose sound has shaped rock history. The idea is clear: to capture the palette of a "1959 4-input" spirit and the more modern attack of an "800" spirit, but in a more accessible 20-watt format for everyday use, more straightforward to dial in, and easier to integrate into a modern rig.
Its design emphasizes robustness and consistency: high-end European custom components, compact lunchbox-style format, and handcrafted manufacturing. The result: a tube guitar amp head that aims for character without the usage constraints often associated with large vintage amps.
For which guitarists and playing contexts?
With its 20-watt tube power and built-in attenuator, the Colt suits both guitarists looking for a versatile home amp head and those wanting a rehearsal amp or a compact stage format. At 20 watts, you get credible power to play with a drummer and a suitable speaker cabinet; at 2 watts, you retain a "live" amp feel to work on touch and nuances at controlled volume.
Style-wise, the Colt naturally excels in rock, hard rock, and muscular blues territories: tight crunchy riffs, singing leads, and taut rhythmic playing with responsiveness. It also performs very well as a pedal platform : overdrive, fuzz, boost, delay, and modulation find their place thanks to a well-articulated sonic foundation and an effects loop to keep repeats clear when gain is cranked.
The sound
The Colt is a tube head oriented towards British grain : present mids, a clear attack, and a pleasant natural compression when pushing the amp. The "Plexi" channel delivers a typical, tight, and harmonic drive that ranges from woody crunch to denser saturation by adjusting gain and volume, with excellent response to the guitar's volume knob.
The "Boost" channel goes for more bite and edge, with a tighter feel, ideal for riffs that need to stay clear and leads that cut through the mix. Thanks to the 20W / 2W attenuator, the Colt retains solid lows and convincing dynamics at reduced volume: you keep the "push" sensation and touch response without having to blast the speaker. Finally, its behavior makes it an excellent pedal base : an upstream boost to tighten lows and increase sustain, or a transparent overdrive to thicken crunch, integrate naturally.
Technical Specifications
Type and Power
- Tube guitar amp head
- Power: 20 Watts
- Class: A
- Built-in attenuator: 20 Watts / 2 Watts
Channels and Controls
- 2 channels: 1959-style Plexi and 800-style Boost
- Per-channel controls: Volume and Gain
- Shared 3-band EQ: Bass, Mid, Treble
- 1 input (simplified format, without 4 inputs)
Tubes and Maintenance
- Supplied with EL34 tubes
- Compatible with 6L6 tubes (for a more American tonal color)
- No-Bias system: tube changes without recalibration
Connectivity and Rig Integration
- Speaker outputs: 1x8 Ohms or 1x16 Ohms
- Effects loop
- Footswitch input for external channel switching (optional footswitch)
Construction
- High-end custom European components
- Hand-assembled in Greece
- Optimized and robust design, built for transport
Dimensions and Weight
- Dimensions: 37 x 20 x 20 cm
- Weight: 7.5 kg
Included Accessories
- Ace Amplification Colt amp head
- Set of installed EL34 tubes
Technical specifications
| Effects | Looper | Category | Amplifier |
| Category | Guitar amp head | Number of channels | 2 |
| Technology | Tubes | EQ | 3 channels |
| Effects loop | Yes | Color | Black |
| Amp tubes | 6L6, 2 x EL34 | Finishing | Aluminum |
| Attenuator | Yes | Power output | 20 W |
Questions frequently asked
Is the Ace Amplification Colt usable at low volume at home?
The built-in attenuator allows switching from 20 Watts to 2 Watts. This reduced power preserves the dynamic response of a tube amp for controlled volume practice.
What are the sounds of the two channels?
The Plexi channel is modeled after 1959 and ranges from woody crunch to thicker saturation. The Boost channel, modeled after 800, provides a tighter attack for riffs and leads.
What speaker cabinet can be connected to this head?
The speaker outputs accept an 8 Ohm or 16 Ohm cabinet, with one output designed for a single speaker.
Can delay and reverb be used with the Colt?
An effects loop is integrated to place delay, reverb, or modulation after the distortion. This setup helps maintain clear repeats as gain increases. A footswitch input also enables channel switching remotely, with an optional footswitch.
Does changing the EL34 tubes require bias adjustment?
The no-Bias system allows replacement of both EL34 tubes without recalibration and permits the use of 6L6 tubes.



