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Darkglass Alpha-Omega 500 - 500-watt Bass Head
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Darkglass Alpha-Omega 500 - 500-watt Bass Head

500W Bass Amplifier Head with Compressor, 6-band Graphic EQ, IR Cabinet Simulation, and XLR DI Output

Darkglass Alpha-Omega 500 - 500-watt Bass Head

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Product Description

Darkglass Alpha-Omega 500 - 500-watt Bass Head (MB-Alpha500)

Darkglass Alpha-Omega 500 - 500-watt Bass Head

The Darkglass Alpha-Omega 500 bass amplifier head takes the acclaimed Alpha-Omega amp to a new level of versatility. In addition to the renowned Alpha-Omega overdrive/distortion engine, Alpha-Omega 500 adds a studio-quality VCA compressor, a flexible 6-band graphic EQ, and the ability to store three IR cabinet simulation presets for lifelike direct performance and recording. All this combined with 500 watts of amplification makes the Darkglass Alpha-Omega 500 bass amplifier head a comprehensive solution for both the stage and the studio.


  • 500W solid-state bass amplifier head
  • Passive/Active switch optimizes performance for passive or active bass pickups
  • Aux input and headphone output allow you to practice along with a music player
  • Acclaimed Alpha-Omega drive engine allows you to dial in harmonic richness and sonic girth
  • VCA compressor for controlling dynamics and fattening your tone
  • 6-band EQ gives you powerful tone shaping options
  • Memory for 3 IR cabinet simulations, uploadable via USB
  • FX loop; Footswitch jack
  • TS/speakON combo speaker output jack
  • XLR DI output

  • Type:Solid State
  • Number of Channels:Single Channel
  • Total Power:500W Class D
  • Effects:Distortion, Growl, Drive, Bite
  • Compression:Yes
  • EQ:6-band Graphic EQ
  • Inputs:1 x 1/4"
  • Outputs:1 x XLR (direct out)
  • Power Source:Standard IEC AC cable
  • Height:2.79"
  • Width:9.1"
  • Depth:7.1"
  • Weight:5.29 lbs.

Dimension Packaging Weight : 3.0 kg

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Customer Reviews

Based on 3 reviews
What an AMAZING upgrade from version 1

I purchased the Microtubes 500 3 years ago and Iloved it! Then I got the Alpha Omega pedal (also amazing). Since I needed more power for larger venues and recording pre/post into my DAW, I got the microtubes 900. Since I�ve been playing smaller venues and love my alpha omega pedal I thought I�d try the microtubes 500 alpha omega. It is so portable and I don�t need to use my pedal board since distortion and compressor are built in. Darkglass products are built solid and are clean. I also love the impulse response feature that you can customize all you want including all the DG cabinet offerings. Practicing with the aux in and headphones seals the deal. I throw this in my varying case and can practice anywhere there is a power outlet. Don�t be fooled, this has fantastic clean tones too and I use it on jazz gigs too!

Great Recording Solution

I'm a recording artist, and I was in the market for a good sounding DI solution. I was looking at the Alpha Omega pedal based DI box since I'm not currently playing with a cab, but decided to go for amplifier to retain that ability to run a cab if I still wanted to later on - and it looks good on a desk.

The Alpha Omega 500 is a very sleek looking little solid state, with a nice studio environment kind of build. Smooth, resistant knobs and faders and nice solid connections, that all feel at home paired with the rest of the studio gear. It also has a built-in electric cooling fan that regulates itself. It would handle gigging, but it doesn't feel like a piece of equipment designed for that intention to me - not like an old Ampeg or Marshall.

DI output sounds good through both my Pro Channel II and my SSL interface. The cab sim switch on the back allows you to toggle through three different presets of cabinet sounds, which are also programmable via USB cable.

The overdrive controls on this amp make it a very fluid and interactive experience dailing in sounds because both distortion channels are always engaged. Being able to sweep between channels with knobs instead of switches allows for fine tuning of how you want the bass to sit in your mix. Really meshes well with cleans all the way to matching the grit of modern metal guitar amps.

The compressor is pretty transparent until you start approaching brickwall limiting, and works well if you don't have a dedicated hardware compressor. I still prefer a dedicated comp over the compressor built in to the amp, but it's a good compressor nonetheless.

The part that impressed me the most with this unit is that I pull the same clarity and punch through both passive and active pups.

Overall I'm happy with this amp and won't be in the market for anything else like it for a while.

Loud, Proud and Fun!

I like this amp a lot. It's loud and fun. The cleans sound excellent, and the Alpha Omega engine is good for a lot of different sounds. It has a lot of really tight low end, so it's easy to dial in without getting overbearing. There are no tone controls other than the 6-band EQ, and the growl and high buttons. I'm not generally a fan of bass distortion, but the distortion sounds are fantastic, and you can always dial in enough parallel clean to make your signal audible. One caveat is that there is no separate tone control for the distortion. The distortion also works well at low levels to fatten up the sound. Sometimes I use the Alpha/Omega distortion, and sometimes I use a Darkglass Vintage Microtubes pedal. They sound very different from each other, but they both sound excellent. The one-knob compressor works great, and can be mild or very powerful.


Sounds great
Plenty of EQ control over final sound
Awesome foot-switchable distortion.
Lows are tight and defined, but have plenty of body.


No separate EQ for distortion.
Foot pedal not included.
Setting EQ with 6 small sliders rather than knobs can be fussy.

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