SoundStandard C2231 Professional Dual-Channel 31-Band Graphic Equaliser Rack Mounted Unit
Condition: In great condition with very minor cosmetic wear. No accessories included (case, power supply etc).
Photos shown are of the product on hand.
Serviced, repaired if needed, and tested by our techs
3 months electrical, 6 months structural warranty
On used gear, excluding misuse, neglect, unreasonable wear and service items like strings. On top of your rights under consumer law.
Afterpay available on this one
Interest-free layby in store (20% deposit, up to 3 months) · Afterpay up to A$4,000, in store and online · Zip above A$4,000
7-day change-of-mind returns
From the day you receive it. A 20% restocking fee applies, and you pay return postage. Not for strings or mouth-played items. Faulty? No fee, and we pay postage. Returns policy
Pickup available at 16 Chrome Street
Usually ready in 2 hours
Overview
The SoundStandard C2231 is a dual-channel 31-band graphic EQ delivering precise 1/3-octave frequency control, balanced I/O, and rugged 19-inch rack build. Ideal for live sound, venues, studios, or fixed installs. With selectable boost/cut, high-pass filtering, and stereo operation, it offers detailed tonal shaping and versatile routing for professional audio setups.
Power supply: AC 2X 18V 1.5A. Power supply is not included with this purchase.
Specs
- Stereo 31-band graphic equaliser (2 × 31-band, one per channel)
- 1/3-octave spacing for fine-grained frequency control across the full audio spectrum
- Balanced inputs and outputs (XLR and ¼″ TRS) for low-noise signal flow
- Selectable boost/cut range (typically ±6 dB or ±12 dB, depending on model) per band
- High-pass filter switch per channel (useful for rumble prevention or sub-crossover prep)
- Bypass switch per channel to allow clean signal pass-through or EQ use
- Long-throw fader sliders for clear, accurate band adjustment
- Robust 2U 19" rack enclosure that is suited to studio, PA, live rigs, or install racks
- Wide frequency response (≈ 20 Hz to 20 kHz) covering the full audio range
- Balanced line-level I/O, suitable for line-level mixers, amplifiers or powered speakers
- Serial number: 3405106120004
Condition & Warranty
Tested and under warranty. Every preloved item is serviced, repaired if needed, and tested by our techs before it goes on sale. Used gear comes with our warranty: 3 months for electrical faults and 6 months for structural faults. It excludes misuse, neglect, unreasonable wear and service items such as strings and batteries. It's on top of your rights under the Australian Consumer Law.
7-day change-of-mind returns. From the day you receive it, on new and preloved gear. It must come back as you received it. A 20% restocking fee applies, and you pay return postage. Not for strings or anything played with the mouth. If it's faulty, the fee never applies, your Australian Consumer Law rights apply, and we pay return postage. Returns policy
Shipping. Free standard shipping Australia-wide on orders over $199 and under 5kg, with an express option at checkout for most items. Guitars over A$2,000 ship free by courier to Qld, NSW, Vic, ACT and Tas, and half price to SA, WA and NT. Preloved items usually ship the same day or within 72 hours.