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Dynaudio BM9S - Single – No Longer Available

Active 200-watt subwoofer with one 10" driver
MFR# 995010011

Product Description

The Dynaudio BM 9S 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, BM 9S 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
  • 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

The BM 9S subwoofer is intended to operate with the BM series monitors, more specifically, the BM 5A monitor.  It is extremely well-suited for that extra punch to the bottom in setups where space is limited.  The BM 9S delivers a clear, crispy and surprisingly powerful punch when you take its almost diminutive size into account. The BM 9S will complement stereo and multichannel monitoring equally well and when daisy-chaining of subwoofers is needed, it sports a low level LFE input/output.

For significant control and enhancement of the general performance, the BM 9S is a closed cabinet type.  This creates an internal pressure by which the woofer gains a considerable amount of precision when it comes to the reproduction of low frequent signals.  This precision is easily audible and it augments the feeling of reality that the listener experiences.

The BM 9S is very suitable for the following production environments:

  • Post production
  • Music recording and mixing
  • Film editing (smaller rooms)
  • DVD authoring and mastering
  • Multichannel production (audio or audio for pictures)
  • Broadcast
  • Edit suites
  • OB vans


  • System: active subwoofer
  • Frequency response (+/- 3 dB): 29 Hz - 250 Hz
  • Low frequency limit: 29 Hz
  • High frequency limit: 50 Hz - 250 Hz
  • Amplifier power: 200 W @ 4 Ohm
  • Crossover frequencies HP Sat: Flat / 60 Hz / 80 Hz
  • Low pass filter: 50 – 150 Hz
  • Crossover slope: 2nd order Butterworth
  • Crossover bypass: Yes (Flat)
  • Phase adjustment: 0° / 180°
  • Inputs: balanced/XLR
  • Input sensitivity for full output: 75mV - 5V
  • Maximum input: 10Vrms
  • Input impedance: 20 k (+ branch) 10k (- branch)
  • Output: balanced/XLR
  • Master / slave link: Yes
  • Drive unit: 10" (24 cm), long throw
  • Magnetic shielding: Yes
  • Internal cabinet volume: 15,9 litres
  • Bass principle: closed
  • Power consumption max.: 325 W
  • Power consumption standby: 16 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"
  • Complies with: EN 55103-1 and EN 55103-2, FCC part 15 class B, CISPR 22 class B
  • Certified to: IEC 60065, EN 60065, UL 6500 and CSA E60065 CSA FILE #LR108093
  • Operating temperature: 32° F to 122° F (0° C to 50° C)
  • Storage temperature: -22° F to 167° F (-30° C to 70° C)
  • Humidity: max. 90 % non-condensing
  • Warranty: 2 years on parts and labor

Product Specifications

Condition New
Active or Passive Active
Monitor Application Sub
Number of Speakers Single

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
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In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
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