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Ashdown 22-HEAD Shavo Signature 600w Rackmount Head

Ashdown 22-HEAD Shavo Signature 600w Rackmount Head



Order before 3pm Mon-Fri for Next Day Delivery

Shavo Odadjian, best known for his work as bassplayer with System of a Down, is a long-time fan of Ashdown bass amplifiers, and has been consistently using them since 2002. So Ashdown decided it was time he had his name on one of their products: introducing the Ashdown HEAD-22 Shavo Signature 600w Rackmount Head!

Ashdown HEAD-22 Shavo Signature 600w Rackmount Head Highlights

  • 600 Watt signature bass head for System of a Down bassist Shavo Odadjian
  • Custom red finish with "Shavo" print on the front panel
  • Dual VU Meter aesthetics - inspired by the Geezer Butler Head of Doom
  • Built upon the foundations of the ABM 600 Evo IV
  • Sophisticated 9-band EQ
  • Valve-powered Preamp and Drive circuit
  • Sub-harmonic generator, with single-knob control
  • 'One Knob' dynamic compressor
  • Transparent FX loop, Line Input, and outputs for Tuner, Speakers, and DI
  • Home Delivery options available

Premium-Quality Signature Amp

Built upon the solid foundations of Shavo's favourite ABM 600 EVO IV, and with aesthetics inspired by the Geezer Butler signature "Head of Doom", the new Ashdown HEAD-22 is a stunning reminder of just what the company is capable of.

Featuring a 600 watt Solid State power section, a 12AX7 powered valve preamp, on-board Compression, Sub-Octave Generator, and a 9-band EQ, alongside plenty of connectivity options, the HEAD-22 would make a fantastic amp for any aspiring or experience professional.

Tonally Versatile

Just like the flagship ABM EVO IV lineup, the Ashdown HEAD-22 comes complete with some of the best tone-shaping options available in a bass amp.

First of all there's the 9-band EQ (yes, nine), which offers controls for not just the standard Bass, Middle and Treble EQ bands, but also has six sliders for the frequency ranges inbetween. These sliders cover pin-point cut and boost options for 100Hz, 180Hz, 340Hz, 1.3kHz, 2.6kHz, and 5kHz.

In addition to this there's the famed ABM 'One Knob' Sub-Harmonic generator control, which adds an octave below the notes you play, allowing you to really fill out your sound.

And finally, last but not least, there's also a 'One Knob' Dynamic Compressor control, that will help you to fill out the mix.

Plenty of Connectivity Options

As if all of that wasn't enough, the Ashdown HEAD-22 also comes complete with a plethora of connectivity options, aside from the standard Instrument In and Speaker Out sockets. These include a transparent FX Loop, Tuner Out, Line Out, Line In, and even a Footswitch Socket for you to connect an FS-4 foot switch (not supplied).

So... Why 22?

The answer to that lies with Shavo himself. Apparently he has a close connection with the number 22, and has always considered it to be lucky. He was born on the 22nd April, Married on the 22nd May, formed System of a Down aged 22 - he even regularly wears a jersey on-stage sporting the number 22!

Available to Order Now

Order your very own Ashdown 22-HEAD at PMT online today, and choose from our fantastic range of Home Delivery options.

More Information
Manufacturer Ashdown
SKU 301687
Shipping Weight (kg) 5.000000
Effects 9 Band EQ, Overdrive, Compressor, Sub Octave Generator
Power Supply IEC
Colour red
Warranty 2 years
Series Artist Series
Power 600 Watts
Amp Type valve / solid state hybrid amplifier


We know you want to get your gear as quickly and as safely as possible, Next Working Day Delivery to UK Mainland Addresses, on all IN STOCK items, if ordered before 3pm. This will include a text or email on the day of delivery giving you an exact hour window of when your gear will be with you.

  • Orders under £99: £4.99 Delivery Charge
  • Orders over £99: Free Next Day DPD Delivery (When Ordered before 3pm)
  • Weekend Delivery (Saturday-Sunday): £9.99 (When Ordered before 3pm Friday)
  • Heavy Items (over 40kg): £39.99 Pallet Service







Rather not wait in for the delivery? Don’t worry, we’ve got you…In Stock items can be ordered and paid for in-advance Online via our Click & Collect service. As long as if it's in stock at your chosen branch, you can collect the item within 2 hours*.



If you have bought something In-Store or Online and want to return it as unwanted, you have 30 days from when you receive the goods to contact our PMT experts either by phone or email to return your item.

We can offer you a refund if you return your item within 30 Days from purchase date and with 100% perfect packaging. 


Please Note - We cannot accept unwanted returns on microphones, any in-ear earphones or monitors, and any other items that touch your mouth, nose or inner ear if you have removed the hygienic packaging.