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The Quested SBC250 is a 1U rack-mount subwoofer amplifier and bass management controller. It was designed as the partner for a single Quested SB10 / SB10R subwoofer and is also the recommended amplifier for the compact SB8.
The SBC250 combines a 210 W RMS power amplifier with all the controls needed to integrate a subwoofer smoothly with the main monitors. Crossover frequency, subwoofer gain and phase are adjusted continuously via front-panel controls, while switches provide polarity reversal and a sub-bass bypass for quick comparison with and without the subwoofer. A built-in band-limited pink-noise generator, activated by a recessed switch, simplifies system alignment.
Key features:
- 210 W RMS continuous output power
- Variable crossover 40 – 135 Hz
- Sub gain −14 to +6 dB, variable phase
- Polarity switch and sub-bass bypass
- Pink-noise test signal for alignment
- 2× XLR inputs, 2× XLR outputs, binding posts for the subwoofer
- Compact 1U rack format (482 × 44 × 270 mm, 5.5 kg)
Applications:
The SBC250 is intended for compact Quested systems built around near-field monitors such as the S7R or V-Series and the SB10R or SB8 subwoofer – in project studios, post-production suites and broadcast.
- Type: subwoofer amplifier / controller, 1U rack
- Output power: 210 W RMS continuous
- Inputs: 2× XLR; outputs: 2× XLR
- Speaker output: 1 pair of binding posts
- Crossover: 40 – 135 Hz (front-panel pot)
- Sub gain: −14 to +6 dB (front-panel pot)
- Sub phase: front-panel pot; polarity: switch; sub bypass: switch
- Test signal: band-limited pink noise (recessed switch)
- Dimensions (W×H×D): 482 × 44 × 270 mm
- Weight: 5.5 kg
