To Build A Fabulous Subwoofer, We Didn't Compromise On Parts!
Here’s Why Other $2,000+ Subwoofers Will Be Envious.
When it comes to building speakers, nobody has figured out a way to invalidate the laws of physics. To cleanly reproduce deep bass requires a lot of air movement. Moving a large quantity of air under total control requires a subwoofer that is designed and built well. On the other hand, inexpensive subwoofers can put out a lot of bass, but do so at the expense of control. Sloppy, boomy, uncontrolled bass intrudes on the rest of the sound. Your always reminded there is a separate subwoofer operating and it can be very fatiguing.
Here’s a look at what makes the RSL Speedwoofertm 10 so special at our direct price.
Massive 10 Inch Woofer
Our choice of a 10 inch woofer was determined by the optimum size of the Compression Guide™ enclosure. With all things equal, the larger the enclosure, the deeper the bass response will be. We wanted to limit the size of the enclosure, so that it would be a reasonable fit in most rooms. In the size we chose, we determined that the woofer with the best combination of bass and speed would be a 10 inch woofer. The RSL 10” subwoofer incorporates a massive 9 1/2 pound magnet structure (double that of most other woofers in the price range) to provide maximum efficiency and control. A long throw 4 layer voice coil allows long cone excursions of up to .86 inch peak to peak, which is necessary for deep bass.
One construction characteristic of better subwoofers is the type of frame or basket. Most woofers utilize an inexpensive stamped metal frame. In the finest subwoofers, you’ll find a heavy cast aluminum frame, similar to that used in the RSL Speedwoofer™10.
Full Analog Amplifier Conservatively Rated At 375 Watts RMS
Another construction feature that makes the RSL Speedwoofer™10 stand out from the crowd is the amplifier. Many of today’s subwoofers come with Class D amplifiers and switching power supplies. While these amplifiers weigh less and cost less, in our opinion, they do not provide the impact of our full analog Class A/B amplifier and power supply. We have rated this amplifier conservatively at 375 Watts RMS. Unfortunately, amplifier ratings are not strictly enforced. As a result, some other manufacturers have amplifiers rated that are double ours, yet do not compare.
Soft Clipping Protection Circuitry
In a home theater system, controlling the volume of the subwoofer is not a simple matter. First, there is the volume control on the subwoofer itself. Then, there is the volume control on the audio/video receiver. Third, is the default output level of the audio/video receiver that is determined during the setup of the receiver. And fourth, there is the bass output of the particular movie you are viewing. With all of these variables, it is easy to overdrive a subwoofer. Even though, we designed our subwoofer to have a lot of headroom and handle a lot of power, there is a finite limit to all subwoofers which can always be exceeded. In order to prevent this type of clipping distortion and possible damage to the woofer, our amplifier has soft clipping circuitry that helps to prevent it from being overdriven.
Built-In High Pass Filters For State-Of-The-Art Stereo
In a stereo system with smaller satellite speakers such as the RSL CG4 and RSL CG24 Monitors, it is important to make sure that the lowest bass frequencies are channeled to the subwoofer and not the satellite speakers, in order to prevent damage. The RSL Speedwoofer™10 provides both high level and low level outputs that are filtered below 100 Hz. This allows flexibility in planning an audiophile quality stereo system.
Wireless Remote Control of Volume And Crossover Frequency
Our wireless remote control eliminates the need to constantly get up during movies or music to adjust the volume of the subwoofer. The best place to adjust the volume is from your listening position. There is also remote control of crossover frequency (in home theater systems this function is controlled by the receiver).
Separate Receiver Box Allows You To Replace The Subwoofer Out Of Sight.
While some expensive subwoofers do have wireless remote control, the infrared sensor is normally located in the woofer box. Therefore, if you place the subwoofer out of sight, the remote won’t work. The sensor must be within direct sight of the handheld remote. The RSL Speedwoofer™10 has an exclusive feature which puts the remote receiver, volume and frequency controls in a separate small box. This box can be placed at any convenient location within sight of the listener. It connects to the subwoofer using a standard networking cable (included). On the front panel are motorized controls for volume and crossover frequency. Beautiful blue LED indicator lights show you the settings from your listening position.
Solid, well-braced Enclosure with High-gloss Piano Finish
The more expensive subwoofers use genuine finishes as opposed to the simulated vinyl types. Our enclosure has a gorgeous high gloss black piano finish, which is done by hand. As a result, it is compatible with the finest interiors. The cabinet itself is solidly constructed of MDF wood with internal bracing to eliminate bass-robbing vibration. The cabinet is filled with insulation to eliminate the last vestiges of resonance and there is a separate perforated metal enclosure that protects the electronics and provides air circulation.
Two Sets of Feet
To maximize bass response, it is essential that the subwoofer is properly “coupled” to the floor. Even a slight rocking motion of the subwoofer on an un-level floor can be detrimental. The RSL Speedwoofer 10 is supplied with two types of feet. The adjustable spiked feet are appropriate for carpeted floors, while the rubber feet are used with hard floors to prevent damage.







