Darkglass Electronics Alpha·Omega 900 Bass Amp Head

Crushing Distortion Engine Meets 900 Watts of Studio-Grade Headroom

The Darkglass Electronics Alpha·Omega 900 merges the legendary versatility of Jon Stockman's custom-designed drive circuits with a massive 900 Watt RMS Class-D power section. Engineered for modern bassists who demand razor-sharp note definition, thunderous low-end stability, and aggressive tonal saturation, this flagship amplifier head delivers unmatched presence both on stage and in the studio.

At the heart of the AO900 are two distinct distortion circuits: the "Alpha," which is punchy, tight, and focused with exceptional clarity, and the "Omega," which provides raw, relentless, and aggressive saturation. Using the blend control, players can mix both engines seamlessly alongside their clean signal. Paired with a ultra-quiet VCA compressor, active 6-band graphic EQ, and digital Impulse Response (IR) cabinet simulations, the Alpha·Omega 900 sets the benchmark for modern high-gain bass performance.

Why We Love It at The Guitar Sanctuary

At The Guitar Sanctuary, the Alpha·Omega 900 is our go-to recommendation for players in high-gain rock, modern metal, and heavy progressive genres who refuse to lose low-end fundamental when cranking up the distortion. The ability to run down to a 2-Ohm load means you can easily drive multiple cabinets, while the pristine headphone out and custom IR loading make it a world-class desktop studio tool for silent direct tracking.

Key Features & Performance Attributes

• Dual Alpha·Omega Drive Engines: Morph continuously between the tight, punchy "Alpha" circuit and the raw, unbridled aggression of the "Omega" circuit.
• Active 6-Band Graphic EQ: Precise tonal tailoring across key frequencies (+/- 12 dB at 50 Hz, 250 Hz, 500 Hz, 1.5 kHz, 3 kHz, and 3 kHz shelving).
• Studio-Grade VCA Compressor: Intelligent dynamic control with automatic gain compensation to keep transients tight and punchy.
• Custom Impulse Response (IR) Cabinet Simulation: Store up to three custom cab IRs directly on the unit for authentic direct FOH routing and recording.
• Extreme Impedance Flexibility: Reliable operation down to 2 Ohms, allowing maximum versatility when connecting single or dual speaker cabinets.
• Comprehensive Digital Connectivity: Complete MIDI program switching, USB connectivity for Darkglass Suite management, and dedicated aux/headphone routing.

Technical Specifications

• Power Output: 900 Watts RMS @ 4 Ohms / 2 Ohms (450W @ 8 Ohms)
• Power Section: Ultra-Lightweight Class D
• Preamp Architecture: Analog Preamp with Digital IR Engine
• Drive Engine: Dual Alpha (Tight/Focused) & Omega (Aggressive/Raw) Circuits
• Equalization: Active 6-Band Graphic Equalizer
• Inputs: 1 x 1/4" Instrument (with passive/active input pad), 1/8" Stereo Aux Input
• Outputs: Neutrik Speakon-1/4" Combo Output, Balanced XLR DI Out (Post-EQ/IR), Balanced XLR DI Out (Pre-EQ/Direct), 1/4" Headphone Out
• Control & Connectivity: MIDI In, USB (Darkglass Suite), Footswitch Jack
• Dimensions: 10.5" W x 10.0" D x 2.7" H (26.7 cm x 25.4 cm x 7.0 cm)
• Weight: 6.39 lbs (2.9 kg)