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Dynaudio BM9S Subwoofer - Used

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Availability: Out of stock


Quick Overview

This used Dynaudio BM9S Subwoofer is in near mint condition with almost no signs of use. It has only had one owner who always kept it in a professional recording studio...


The BM9S is designed according to the strict BM series specifications. With a 10" woofer and 200 Watts of power, and virtually minute dimensions, this sub is tailor-made to take care of even the most comprehensive challenges where space is scarce. Being every bit as versatile as the rest of the BM series, BM9S is a very competent partner for smaller stereo and multichannel setups, giving a very powerful system for even the most demanding users across the globe.

The Auto On/Off function, provides a minimized idle energy usage by shutting off after minutes of no input signal. The auto sensing circuit enables BM9S to automatically come to life when input signal is detected. 

The satellite filters that this sub sports, provides high-pass filtering of the monitor source signal allowing 60Hz or 80Hz corner frequencies.

This is a huge advantage for the monitor performance, as the satellites do not need to deal with power consuming lower frequencies. This leaves all the satellite power to greatly accelerate performance and precision.


  • 10" woofer, pure aluminum voice coil
  • Phase adjustment in 0° / 180°
  • Auto on/off, power LED
  • Mode selection, LFE or slave
  • Adjustment of low-pass corner frequencies (50-150Hz)
  • SAT/SUB high-pass adjustment, Flat, 60 Hz, 80 Hz
  • Small dimensions: 11.6" X 11.4" X 12.5"
  • 200 W @ 4 Ohms
  • Discrete LFE input, slave output for linking
  • Closed cabinet for extremely precise low frequency reproduction

This used Dynaudio BM9S Subwoofer is in near mint condition with almost no signs of use. It has only had one owner who always kept it in a professional recording studio.

Technical Specifications

  • ModelBM 9S
  • SystemActive Subwoofer
  • Frequency Response (+/- 3 dB)29 Hz - 250 Hz
  • Low Frequency Limit*29 Hz
  • High Frequency Limit*50 Hz - 250 Hz
  • Amplifier Power200 W @ 4 Ohm
  • Crossover Frequencies HP SatFlat / 60 Hz / 80 Hz
  • Low Pass Filter50 – 150 Hz
  • Crossover Slope2nd order Butterworth
  • Crossover BypassYes (Flat)
  • Phase adjustment0° / 180°
  • InputsBalanced/XLR
  • Input Sensitivity for Full Output*75mV - 5V
  • Maximum Input10Vrms
  • Input Impedance20 k (+ branch) 10k (- branch)
  • OutputBalanced/XLR
  • Master / Slave LinkYes
  • Drive Unit10" (24 cm), long throw
  • Magnetic ShieldingYes
  • Internal Cabinet Volume15,9 litres
  • Bass PrincipleClosed
  • Power Consumption Max.325 W
  • Power Consumption Standby16 W
  • Mains Voltage**100-120V 50/60Hz or 220-240V 50/60Hz
  • Weight (net)10 kg / 22 lbs
  • Dimensions (W x H x D)294 x 289 x 318 mm / 11.6" x 11.4" x 12.5"
  • EMC-
  • Complies withEN 55103-1 and EN 55103-2, FCC part 15 class B, CISPR 22 class B
  • Safety-
  • Certified toIEC 60065, EN 60065, UL 6500 and CSA E60065 CSA FILE #LR108093
  • Enviroment-
  • Operating temperature32° F to 122° F (0° C to 50° C)
  • Storage temperature-22° F to 167° F (-30° C to 70° C)
  • HumidityMax. 90 % non-condensing
  • Warranty-
  • 2 years on parts and labor-
  • * Depending on setting-
  • ** Please refer to your local network-
  • (Specs can change without notice)