The Omega Darkglass AO900 Alpha 900 Bass Head is an Omega amplifier, currently around $1499.99. Close alternatives include the Omega Darkglass Alpha Omega 500 and the Hiwatt Bulldog 440 Head. It pairs well with the ProCo RAT 2 and the Black Arts Toneworks LSTR Fuzz.
Omega Darkglass AO900 Alpha 900 Bass Head
Omega · amplifier
The Darkglass Omega AO900 Alpha•Omega 900 is a 900-watt bass amp head from Darkglass Engineering's Omega line, combining serious Class D power output with Darkglass's signature saturation and tone-shaping circuitry, drawing on the brand's reputation for aggressive, modern bass tone favored in metal and heavy music. It's built for bassists needing substantial headroom alongside Darkglass's characteristic overdrive and harmonic saturation capabilities built directly into the amp.
- headroom
- metal
- modern
- drive
- saturation
- large venues
- brand
Good for
- Live
- Studio
Price updated Aug 27, 2026
Genres the Omega Darkglass AO900 Alpha 900 Bass Head is commonly used in
- Metal
- Djent
cited
Inferred from shared tonal signals, not a stated genre tag. - Hard Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Heavy Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Pedals that stack with the Omega Darkglass AO900 Alpha 900 Bass Head
ProCo RAT 2
Proco
34% matchThe RAT's cutting, low-gain distortion stacks well into the AO900's modern, saturated bass headroom for extra grit on top of the amp's own drive.
Black Arts Toneworks LSTR Fuzz
Black Arts Toneworks
32% matchBoth live in heavy, modern metal territory, so the AO900's own saturation stacks naturally with the LSTR's scooped doom fuzz.
Ashdown Geezer Butler Signature
Ashdown
32% matchPush the Geezer Butler's doom-voiced preamp drive into the Alpha 900's high headroom and the saturation stays harmonically rich instead of choking out.
MXR Dyna Comp
MXR
19% matchAhead of the AO900's modern, saturated bass headroom, the Dyna Comp evens out low-end dynamics before the amp's own drive circuit takes over.
Outlaw Effects RockerBox
Outlaw Effects
18% matchThe RockerBox's selectable drive modes give the AO900's already-saturated bass headroom another distinct layer of metal-leaning crunch to dial in.
Binson Echorec Delay
Binson
11% matchPut the Echorec in the AO900's loop, after its own harmonically rich drive and saturation, so the echoes don't smear the attack. — goes in the amp's FX loop (or last, into a clean amp)
Electro-Harmonix XO Deluxe Memory Man
Electro-Harmonix
11% matchKeep the Memory Man in the AO900's loop for lush, modulated echo beyond the bass head's own modern drive and saturation. — goes in the amp's FX loop (or last, into a clean amp)
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchThe high headroom tone has headroom to spare — Dr. Scientist Frazz Dazzler V2 gives it fuzzy to fill it with
Cheaper alternatives
Traynor YBA100 Tube Bass Head
Traynor
90% similaritysimilar tone character
Mesa Boogie Subway D-350
Mesa Boogie
90% similaritysimilar tone character
Blackstar Unity Bass U500
Blackstar
89% similaritysimilar tone character
Phil Jones Bass Compact Plus BG-450
Phil Jones
89% similaritysimilar tone character
Ampeg RB-112 Rocket Bass 100-Watt Combo Bass
Ampeg
89% similaritysimilar tone character
Similar charactersee all similar tone character →
Omega Darkglass Alpha Omega 500
Omega
70% similarity“The Darkglass Alpha•Omega 500 is a 500-watt bass amp head, the lower-power sibling to the 900-watt AO900 in Darkglass Engineering's Alpha•Omega line”
Hiwatt Bulldog 440 Head
Hiwatt
90% similaritysimilar tone character
Mesa Boogie Subway D-800
Mesa Boogie
89% similaritysimilar tone character
Peavey Max 300
Peavey
89% similaritysimilar tone character
See all alternatives to the Omega Darkglass AO900 Alpha 900 Bass Head (cheaper + boutique) →
Questions people ask
What are good alternatives to the Omega Darkglass AO900 Alpha 900 Bass Head?+
The closest matches in character are the Omega Darkglass Alpha Omega 500, the Hiwatt Bulldog 440 Head, the Mesa Boogie Subway D-800. Budget picks: Traynor YBA100 Tube Bass Head, Mesa Boogie Subway D-350, Blackstar Unity Bass U500.
What pairs well with the Omega Darkglass AO900 Alpha 900 Bass Head?+
Strong matches from rig and tone-complementarity evidence: ProCo RAT 2, Black Arts Toneworks LSTR Fuzz, Ashdown Geezer Butler Signature — The RAT's cutting, low-gain distortion stacks well into the AO900's modern, saturated bass headroom for extra grit on top of the amp's own drive..
How much does the Omega Darkglass AO900 Alpha 900 Bass Head cost?+
Around $1499.99 (live listing price, updated Aug 27, 2026).