Dynaudio BM9S II 10" Powered Studio Subwoofer

Powered 200W Subwoofer with 10" Driver
Dynaudio BM9S II 10
Dynaudio BM9S II 10
Sweetwater Savings: $320.00 MSRP: $1,269.00

Or make 3 easy payments of $316.33/month!

Plus $10 processing fee. Use any credit card! Sweetwater's Flexible Payment Plan lets you get your gear now and stretch your payments over time. Plus, we won't charge interest! Learn more

Arriving Soon
We expect more from Dynaudio in just a few days. Reserve yours now, risk-free.

Share this with your friends:

Most popular accessories & related items...

Dynaudio BM9S II 10" Powered Studio Subwoofer
Arriving Soon Notify me

The Perfect Match for Your BM MkIII Monitors!

Designed to compliment your BM mkIII series monitors, the Dynaudio BM9S II active subwoofer adds extended bass in smaller mixing and recording environments. After all, even if your monitors deliver ample bass, sometimes you still need more low-end to ensure an accurate mix. Employing a handcrafted 10" driver and a closed-cabinet design, the BM9S II will bring rock-solid bass response to your monitoring system. At Sweetwater, we understand that your monitoring chain is the most important part of your studio. After all, if you can't hear it, you can't mix it! You can trust your ears when you use the Dynaudio BM9S II active subwoofer.

The Dynaudio BM9S II Active Subwoofer Features at a Glance:
  • 10" woofer with pure aluminum voice coil provides clean, deep bass
  • Auto on/off for conserving power
  • Selectable LFE or slave mode for linking
  • Seamless adjustment of lowpass/highpass frequencies provides smooth crossover
  • Closed cabinet design delivers extremely precise low-frequency reproduction
Hear your mix, your whole mix, and nothing but your mix with The Dynaudio BM9S II active subwoofer!

Additional Media

BM9S II User Manual
Studio Monitor Buying Guide

Tech Specs

Powered Yes
Speaker Size 10"
Driver Type Cone
Driver Material Molded MSP
Total Power 200W
Frequency Range 29Hz-250Hz
Input Types 3 x XLR
Output Types 3 x XLR
Height 11.4"
Width 11.4"
Depth 11.8"
Weight 19.4 lbs.
Manufacturer Part Number 995014011

Customer Reviews

Based on 3 reviews
Write your review


This sub is perfect. If you know Dynaudio then you know what you're getting into. Great build quality, great quality, nothing flashy. That's what they do best. You're paying for a honest and even subwoofer with no frills or gimmicks. It has an even gain so you can get loud in big rooms and softer in smaller. It also has an even frequency range like you'd want.
Music background: Professional Studio Engineer and Live Audio

great little sub

Paired this with my BM compacts....exactly what the doctor ordered. The compacts by themselves are very good, but relieving them of the 80Hz and lower freqs has really allowed them to kick. I see below somebody was offended by the build quality...not sure I follow that but everybody has their own thoughts I suppose. Seems solid enough to me....nothing ragged about it's looks or performance. Is it pricey? Yup. Does it meet my needs. Yup. I love the small footprint and low key (but very clean) looks. Placement was easy and my office isn't optimally designed...meaning acoustic design was an afterthought. Sure there are other subs you can (and should) consider. I did, but still came back to this little Dynaudio.

Dynaudio BM9S ll

Sub was easy to incorporate into my studio. Low marks for build quality. Feels very light and cheap. I have had computer speakers with a better build. Also do not understand why a sub this expensive does not have sub bypass jack on it. Thankfully there is a switch to bypass the auto off function. I won't return it because it does what it is supposed to in my studio but in my opinion it is in no way worth $. for this build quality.
See also: Subs, Dynaudio, Dynaudio Subwoofers