Rythmik subwoofers?


Hi all.
I have been looking for a small sealed subwoofer to add to my Harbeth P3ESR in a 20x15 size room. In my price range of about 5 to 6 hundred dollars and the usual suspects SVS,HSU,etc,etc. I came across this Rythmik sub. Anyone familiar with this brand. It is only sold direct. This is the model I have been looking at!
Thanks

Musical sub on a budget

Looking for an affordable musical that can be also used for moderate home theatre use? L12 uses our proprietary servo design to gain low frequency clarity and articulation. For home theatre use, L12 has a HT playback mode with rumble filter to limit less audible sub-sonic contents. While many of our competitors limit their best technology (such as servo) to their top level models, we wanted to make Direct Servo affordable, so we've held nothing back. As a result, you get the tight and music bass you wouldn't normally expect from a subwoofer at this price range. L12 is likely the least expensive servo subwoofer on the market.

Direct Servo Technology

You may have heard about other servo subwoofers which are generally well regarded for their accuracy. It is a well established technology, most often based around an accelerometer which measures cone movement. Our Direct Servo technology has significant advantages over other servo technologies. We use a sensing servo coil which acts like a microphone which compares the original signal to what the subwoofer is actually reproducing. The signal is then corrected instantly to compensate for any differences. Once you understand the concept, you may wonder like we do why anyone would make a subwoofer any other way.

Some of the benefits of Direct Servo include:

  • Reduction of the effects of thermal compression are eliminated under normal operation
  • Higher efficiency allowing output which would normally require a more powerful amplifier
  • Deep bass extension can be achieved using a low mass driver with superior transient response
  • Mechanical and thermal memory effects are reduced, further improving transient response
  • Much greater damping control over the cone
  • Dramatic reduction of the re-radiation of bass from inside the box

Read more about Direct Servo in our technology section.

View animation demonstrating how Direct Servo works 

This budget level sub delivers the same articulate and tuneful bass that our subs are known for and yet provides enough HT bass thanks to its sealed design. The combination of servo and a sealed enclosure is what makes this sub deliver on both quality and quantity in bass.

The quickguide for L12 can be found here. This model has a 120-240v switchable power. Price includes shipping to 48 US continental states only. Shipping to other region or country should inquire us for actual cost. Introductory discount is $30 for black oak finish, shown in the shopping cart. Shipping and duty to Canada is an additional $90.

For overseas customer, L12 is small enough to ship via postal service. Please use contact page for a postal shipping quote.

 DescriptionPrice  L12 sealed sub black oak with 300WRMS Ucd Hypex amp$569 L12 sealed sub black matte with 300WRMS Ucd Hypex amp (back order)$569 Shipping and duty of L12 to Canada$90 Postal Parcel shipping to Alaska$120 Standard Postal shipping to Hawaii$60 Postal air priority shipping to Hawaii$85

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128x128yogiboy
+1 rythmic.  I use 2f15s, would defiantly purchase again. I had 1 svs pb12 plus, rythmiks are much better!


I own a Rythmik F12SE and use it for a small HT set-up. I also have Salk Exotica 3's with the Rythmik woofers and amps x 4 (300 watts each). Incredible bass.

Have owned the older SVS models and they were well made. Seaton Sound is also worth checking out for subs. Super fast.
I never hear about which crossovers people use to integrate their subs. The usual 80 hz.24db per octave crossover surely is not valid for all rooms and sub placements.  What if I need a steeper rolloff, or a lower crossover frequency and want to high pass filter my mains at a frequency i select. Do these details make a difference? I want to get a pair of rythmik F12 to pair w my maggie 3.7 but obviously am interested in a crossover. Which one to get? I already have a preamp, amps , and sources.

topjetboy---The Rythmik F12 plate amp includes lots of controls (most importantly a phase control providing not a couple of settings, but a continuously variable range of 0-180 degrees, to allow time-alignment of speaker and sub electronically, without having to move the sub physically), including of course a low-pass filter for the sub itself, with a range of 40Hz to 120Hz, and 2nd and 4th order slopes---12dB and 24dB an octave respectively. The standard A370 version of the plate amp also provides high-pass filtering for the main speakers.

If you want a reasonably-priced outboard x/o that provides more flexibility, and perhaps better (more transparent) sound, Nelson Pass’ First Watt B4 is one such x/o. It provides x/o frequencies in 25Hz increments from 25Hz to 3200Hz, and 1st/2nd/3rd/4th order slopes---6dB/12dB/18dB/24dB per octave. Now THAT’S flexibility! And, it is built with discrete parts---no opamps or ic’s. The B4 retails for $1500, but I believe Reno Hi-Fi sells it for about a grand.