Created with System of a Down’s Shavo Odadjian, the hand-built UK-made SO-1200 delivers a staggering 1200 watts of bass power through dual 600-watt sections for ultimate versatility. With a 9-band EQ, 12AX7-driven Variable Valve Drive, one-knob compressor, and sub-harmonic generator, it offers everything from clean precision to crushing overdrive and earth-shaking lows. Packed with pro connectivity –dual Speakons, DI out, and FX loop –the SO-1200 is a true flagship, built to command arenas and studios alike with unmatched tone and authority.

The Ashdown SO-1200 was created in close collaboration with Shavo Odadjian of System of a Down, designed to capture his unmistakable sound and deliver it at any volume. Hand-crafted in the UK, this amp delivers 1200 watts of total output (600W + 600W), providing enough headroom and authority for the biggest arenas while remaining refined enough for studio sessions.

At the heart of the SO-1200 lies a Variable Valve Drive, powered by a 12AX7 preamp tube, offering everything from crystal-clean tones to saturated, harmonically rich drive. A 9-band EQ provides exceptional tonal flexibility, with pinpoint accuracy across the entire frequency spectrum. Add in Ashdown’s one-knob compressor for smooth dynamics and the legendary Sub-Harmonic Generator for chest-rattling lows, and you’ve got every tool needed to sculpt the perfect bass tone.

SPECIFICATIONS

Power Output: 600 + 600 Watts

Power Requirement: 115-230 Volts

Preamp Tubes: 1 x 12AX7

Speaker Outputs: 4 x Jack/Speakon outputs

High Instrument Input: Impedance 3.9MΩ, input range 150mV

Low Instrument: Impedance 10kΩ, input range 300mV – 40V p-p

Line Input: Impedance 22kΩ, input level 0dBu nominal

DI Output: 600Ω balanced, Level 0dBu nominal

Tuner Output: Impedance 22kΩ, Level 0dBu nominal

Effects Send: Impedance 22kΩ, Level 0dBu nominal

Effects Return: Impedance 22kΩ, input level 0dBu nominal

Frequency Response: –3dB @ 17Hz – 30kHz

Impedance: Minimum 4 Ohms per side