
Some situations call for a little extra umph from the lower side of the scale. That’s when a PXW 15P is a perfect call. This 15″ powered subwoofer gives you a solid lift in the bass area with balanced XLR I/O jacks as well as a high pass XLR ouput. The back panel features LED indicators for limit, signal, protect, and power. The protect indicator will glow when the subwoofer is getting too hot, it then goes into protect mode and stops all output to save your investment. Features 15″ powered subwoofer Attached wheels on the subwoofer Limit Indicator lets you know when built-in limiter is active Signal Indicator glows when when there a signal is received to the Full Range input Subwoofer gain control knob regulates the output level of the subwoofer, and set balance between the speakers and subwoofers. Protect Indicator glows when the subwoofer goes into protect mode which prevents the subwoofer amplifiers from getting too hot and stops all output Power LED indicates power is on Phase switch for reversing polarity of subwoofer Full range XLR input High Pass XLR output Thru full range output Built-in pole mount socket Built-in carrying handles Specs Component: 15″ Woofer (4 Ohm) Dimensions: 23.7″L x 17.2″W x 23.5″H Weight: 88 Lbs. Environmental conditions: Operational temperature: 5???? to 35????C (41???? to 95????F) Operational humidity: 25 to 85% RH (non-condensation) Storage temperature: -20???? to 60????C (4???? to 140????F) Frequency response: (-3db): 45Hz ~ 120Hz Frequency range: (-10db): 35Hz ~ 120Hz Maximum SPL at 1m: 126db Peak output at 1m: 129db Crossover frequency: 120Hz (12db/octave) Input type: balanced differential Input impedence: 50k Input protection: Level protected Thermal protection: Input stage muting, auto-reset Low-Frequency transducer diameter: 15″ Voice coil diameter: 4″ Low-Frequency Power Amplifier: Rated Power 500W continuous, 700W peak Rated THD: Cooling: Passive-Heatsink with speed sensitive electric fan
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More info: American Audio PXW-15P 15in Powered Subwoofer

This 18″ powered subwoofer will provide plenty of boom without to shake the room. It gives you balanced in and out XLR jacks, as well as a thru full range output, gain control, LED indicators, a phase switch for switching polarity and a protect mode that will prevent the subwoofer from getting too hot by stopping all output. Features 18″ powered subwoofer Limit Indicator lets you know when built-in limiter is active Signal Indicator glows when when there a signal is received to the Full Range input Subwoofer gain control knob regulates the output level of the subwoofer, and set balance between the speakers and subwoofers. Protect Indicator glows when the subwoofer goes into protect mode which prevents the subwoofer amplifiers from getting too hot and stops all output Power LED indicates power is on Phase switch for reversing polarity of subwoofer Full range XLR input High Pass XLR output Thru full range output Specs Dimensions: 35.4″ x 28.7″ x 29.1″ Weight: 187.3 lbs. Environmental conditions: Operational temperature: 5???? to 35????C (41???? to 95????F) Operational humidity: 25 to 85% RH (non-condensation) Storage temperature: -20???? to 60????C (4???? to 140????F) Frequency response: (-3db): 35Hz ~ 120Hz Frequency range: (-10db): 25Hz ~ 120Hz Maximum SPL at 1m: 128db Peak output at 1m: 134db Crossover frequency: 120Hz (12db/octave) Input type: balanced differential Input impedence: 50k Input protection: Level protected Thermal protection: Input stage muting, auto-reset Low-Frequency transducer diameter: 18″ Voice coil diameter: 4.0″ Low-Frequency power amplifier: Rated Power* 800 Watts Continuous, 1000W Peak Rated THD: Cooling: Passive-Heatsink with speed sensitive electric fan
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More info: American Audio PXW-18P 18in Powered Subwoofer

The Allen & Heath VF1 is a high quality, 1u rack mount, analogue filter unit equipped with a wide range of input and output connectors for ease of connection in various professional applications. It uses an enhanced version of the legendary xone filter circuits, and has three independent filters - high, low & bandpass. Many digital filters sound synthesized & of a poor quality but the VF1 bridges the gap between digital sound and analogue control. With resonance control, mono or stereo modes & an inverted filter function there has never been more adaptability in a filter unit, and what with the lfo, midi in / outputs & valve controls, Allen & Heath have really come up with the goods this time. Features: Three independent filter types: hi, low & bandpass Resonance Automatic resonance control (arc) limits levels when resonance is at peak and cutoff is activated Filter invert funtion Valve (tube) input stage with drive control Lfo with square / triangle waveforms Residual output noise with filter off-100dbu 1/4″ balanced jack inputs Xlr balanced inputs 1/4″ jack outputs Rca in / out Midi in / out Monitor out Phono stage input for direct connection from a turntable Power lead included Power consumption: 14w max, 7w nominal Steel grey finish
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More info: Allen And Heath VF1 Rackmount Analog Filter