Subwoofer Complete's JBL's New SoundFactor Line
 March 17, 2002
In January, JBL Professional introduced their new SoundFactor line with three full range speakers. SoundFactor offers JBL quality loudspeakers with professional performance and affordability as their benchmark. Now the SoundFactor line is complete with the SF22SP powered subwoofer, debuted at Frankfurt's MusikMesse. The SF22SP features dual 12" woofers in a band-pass enclosure with an internal 500-watt peak (300-watt continuous) power amplifier.
"Subwoofers are usually thought of as having large 15" or 18" woofers, but we chose 12" woofers for the SF22SP. This was because a pair of twelves can actually outperform a single eight-een," explained Gerald Tschetter, Director of MI Marketing at JBL Professional. "How low and loud a speaker can play is determined by one thing - how much air it can displace, which is determined by the area of the speaker's cone times the maximum distance the cone can travel. A pair of 12" speakers actually displaces more air than a single, comparable 18" speaker."
The SF22SP is designed for dance music and live reinforcement of drums and bass, which can demand more than a basic two-way speaker can deliver. The SoundFactor SF22SP powered subwoofer is designed to work with either powered or non-powered speakers, external amps or a powered mixer. Adding the SF22SP to a sound system is very easy - there's no need to use an additional amp, buy a crossover, or assemble an amp rack. Just make one simple connection and you've added strong low frequencies to your sound system.
For versatility and ease of use, you can plug either a line-level or speaker-level signal into the SF22SP. Its balanced, line-level stereo inputs combine both channels for use in systems with a single sub and two satellites. The speaker-level input is especially useful, as this allows connection of the sub via the loop-through connectors, which then pass on the amplified signal to the passive satellite speakers, such as the SF15. The satellite speakers can sit atop the 24" pole that is included with the subwoofer. The speaker's electronics also include a built-in stereo, electronic crossover.
The SF22SP measures 802.6 mm x 464.8 mm x 883.9 mm (31.6 x 18.3 x 34.8 in.) and weighs 57.1 kg (126 pounds). Transport is aided by four removable swivel 3" casters for easy load-in and load-out.
For more information, visit their web site at www.jblpro.com. | 
