Used OMEGA Tube Guitar Amp No Size

Used Omega Ampworks Obsidian Tube Guitar Amp Head

Estimated Year: 2017 

Made in: USA (Detroit, Michigan)

This is a rare, boutique Omega Ampworks Obsidian 100-watt all-tube guitar amplifier head, hand-built in Detroit, Michigan. Omega Ampworks is known for producing high-end, professional-grade tube amplifiers with uncompromising build quality and tone, and the Obsidian is one of their flagship high-gain models.

The Obsidian delivers massive, modern high-gain tones with exceptional clarity and tight low end, while still offering a versatile clean channel and dynamic crunch channel. It’s designed for players who need everything from pristine cleans to crushing metal and hard rock tones in a single, road-ready amp.

This particular amp was previously used by the guitarist for Premonitions of War, adding a cool piece of real-world band history to an already serious boutique amplifier.

Features

- 100-watt all-tube guitar amp head

- Hand-built in Detroit, Michigan (USA)

- 2.5-channel design: Clean, Crunch, and High-Gain Lead

- Channel 1: Drive, Bass, Mid, Treble, Level, Bright switch

- Channel 2: Gain, Bass, Mid, Treble, Level, Shift & Voice switches

- Master section with Depth and Detail controls

- Series FX loop with Send/Return level controls

- Impedance selector (4 / 8 / 16 ohms)

- Parallel speaker outputs

- Footswitchable channels

- Boutique-grade transformers and components

- Serial Number: 170920-5

Condition

This amp is in Very Good condition.

- Fully functional and tested

- Normal cosmetic wear and light surface marks from use

- Some visible smudging and wear on the front faceplate (purely cosmetic)

- No known mechanical or electronic issues

This is a professional-level, boutique tube head that can easily hang with high-end amps from Mesa, Friedman, Diezel, Bogner, etc. Huge tone, massive headroom, and brutal gain on tap.

Store Policies

- All items are tested before listing and again before shipping.

- Orders typically ship next business day.

- Shipping is available to the continental U.S. only.

- We do not accept trades on shipped items.

- Returns are accepted within 48 hours of delivery. The buyer covers return shipping, and a 20% restocking fee applies. If you have any questions before buying, feel free to message us—we’re happy to help.