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Dynaudio Acoustics BM14S Active Subwoofer  From Dynaudio

Active subwoofer, one 14in woofer

Dynaudio Acoustics

Manufacturer's Description from Dynaudio

With a substantial 300 watts of power coming from the 12" woofer and an impressive low frequency limit of 18 Hz, this subwoofer is the perfect match for the BM and M series monitors. 

With an auto On/Off function, energy usage shuts off after minutes of no input signal, thereby saving energy when the subwoofer is idle. As soon as an input is detected, the auto sensing circuit enables the subwoofer to come back to life. 

A satellite filter feature is provided by the BM14S, enabling adjustment of low-pass corner frequencies from 50 to 150Hz of the monitor source signal. The subwoofer will thus take care of the lower and power consuming frequencies, and thereby adding to the performance and clarity of the monitors in the system. This is due to the high-pass filtering feature that the BM14S comes with. If the need arises to daisy-chain more subwoofers to the same system, the low level LFE output gives you exactly that choice.


  • 12" woofer
  • 300 W @ 4 Ohms
  • Phase adjustment in 0° / 180°
  • Auto on/off, power LED
  • Mode selection, LFE or slave
  • Seamless adjustment of low-pass corner Frequencies
  • SAT/SUB high-pass adjustment, Flat, 60 Hz, 80 Hz
  • Dimensions: 13.8" x 14.5" x 16.5" / 350 x 368 x 420 mm
  • Discrete LFE input, slave output for linking
  • Closed cabinet for extremely precise low frequency reproduction
Dynaudio Acoustics

About Manufacturer

The Vision A world where there is no difference between real / live sound and sound reproduced by a loudspeaker. A world where audio engineers, consumers, music-lovers and film viewers expects 100% accurate reproduction of sound - the perfect illusion with all the transparency, details and imaging we know from the real world. This is the vision of Dynaudio Acoustics - a world where you trust what you hear without even thinking about loudspeakers. The Mission Develop, innovate and manufacture state of the art monitors that can be trusted 100% by audio engineers and artists. Everything we do is centered at the artists that work with audio and demands transparent and accurate reproduction of sound - our customers. After all, it is the very same artists that in return give us productions and art that make it all worthwhile. We constantly challenge ourselves and innovate in search of further improvement and perfection of sound reproduction. Our customers Include some of the most demanding studios, engineers, producers and production environments throughout the world. We are proud of our customers and what they achieve. The Owl The great horned owl is known for its super hearing, sight for details, intelligence and precise judgement. Horned owls are active during night. They rely on and trust their ears 100% when navigating through the big woods searching for food. It is said that the great horned owl while in the air can hear small targets moving on the ground - they can also hear the exact distance and direction to the sound source. The ability to focus on, hear and judge the detail while working with the big picture is what makes working with audio an art. Engineers, like the great horned owl, must trust what they hear. Like the great horned owl, we believe that engineers deserve the freedom to navigate and judge the sound-scapes relying on their ears. That is the reason we have placed the Great Horned Owl in the centre of our Logo and that is the reason we build monitors that speak the truth - not more, not less.


Frequency Response: (+/- 3 dB)18 Hz - 250 Hz Sub input, 18 Hz - 250 Hz LFE input

Low Frequency Limit: 18 Hz

High Frequency Limit: 50 Hz - 250 Hz Sub input, 150 Hz LFE input

Amplifier Power: 300 W @ 4 Ohms

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: 75 mV – 5 V

Maximum Input: 10 Vrms

Input Impedance: 10kohms

Output: Balanced / XLR

Master / Slave Link: Yes

Drive Unit: 12" (30 cm), long throw

Magnetic Shielding: Yes

Internal Cabinet Volume: 31 litres

Bass Principle: Closed

Power Consumption:Max. 325 W

Power Consumption Standby: < 3 W

Mains Voltage: 100-120 V @ 50 - 60Hz

Weight (net): 21 kg

Dimensions (W x H x D): 350 x 368 x 420 mm / 13.8" x 14.5" x 16.5"

(Specs can change without notice)