Dynaudio 9S – compact, sealed-box active studio subwoofer with a 9.5″ long-throw MSP driver and a 300 W Class-D amplifier. Extends monitoring systems down to 22 Hz and integrates easily with stereo or surround setups via dedicated LFE/Slave and SAT/SUB I/O. Continuously variable low-pass (50–150 Hz), switchable SAT high-pass (Flat/60/80 Hz), 0°/180° phase and Auto On/Off make room integration fast and accurate.
9S is designed as a precise low-frequency partner for Dynaudio nearfields (e.g., LYD, BM) and other professional monitors. The sealed enclosure delivers tight, controlled bass, while master/slave linking and SAT outputs simplify multi-sub and satellite configurations without extra bass-management hardware.
KEY FEATURES
- 300 W Class-D amp driving a 9.5″ long-throw MSP woofer
- Sealed cabinet for accurate, fast low-end
- Frequency response: 22–175 Hz (±3 dB)
- Continuously variable low-pass: 50–150 Hz
- SAT outputs with switchable high-pass: Flat / 60 Hz / 80 Hz
- Inputs/outputs: LFE/Slave in, SAT/SUB in, SAT out (L/R), Slave out (all XLR)
- Phase switch: 0° / 180°; Auto On/Off
- Master/Slave operation for multi-sub setups
TECHNICAL SPECIFICATIONS
- System: Single-driver, active 9.5″ subwoofer
- Driver: 24 cm (MSP) long-throw
- Amplifier power: 300 W (Class-D)
- Frequency response (±3 dB): 22 Hz – 175 Hz
- Max SPL: 106 dB
- Low-pass filter: 50–150 Hz (continuous)
- High-pass to SAT outs: Flat / 60 Hz / 80 Hz
- Phase: 0° / 180°
- Analog inputs: 1 × XLR LFE, 2 × XLR Stereo (SAT/SUB)
- Analog outputs: 2 × XLR SAT Out, 1 × XLR Slave Out
- Enclosure: Sealed
- AC power: 100–120 V / 200–240 V, 50/60 Hz; Standby < 0.5 W; Max 350 W
- Dimensions (W × H × D): 266 × 276 × 320 mm (10.5″ × 10.9″ × 12.6″)
- Weight: 10.5 kg (23.1 lb)






