STW 250A

The STW 250 A is a 250W RMS active subwoofer. Equipped with a 10” speaker and featuring a Class D switching amplifier (ICEpower® by Bang & Olufsen), it provides exceptional low-end performance and projection. The STW 250 A’s compact design and performance capability makes it ideal for use in a wide range of small and medium sized venues. It is also suitable for connecting to the following speaker systems: STL 250, CLUB 150/A, MON-X and Live 220/A. A 40mm standard flange fitting is provided in the top of the cabinet. 

Frequency response 45 Hz-  120 Hz
Sensitivity @ 1W/1m 96.0  dBSPL
SPL max (calc.) 120.0  dBSPL
Crossover Electronic - 24dB/octave  120 Hz
LF Transducer 10" Woofer
  Neodymium magnet circuit
  Voice coil diameter 50 mm
Power Handling (Continuous/Peak) 250W/400W
Connection XLR Line Input (2)
  XLR Direct Output (2), XLR X-over Output (2)
Impedance 10 kΩ @ 1 kHz for XLR line
Input sensitivity Mono position L or R XLR -6 dBu (0.388 Vrms)
  in balance mode
  Stereo position L and R XLR -6 dBu (0.388 Vrms)
  in balance mode
Controls Volume, Ground Lift Switch, Mono/Stereo Switch
Box 15 mm Plywood
  2 way bass reflex
Stand Support Top hat composed
  of welded steel tube ø 36 mm, h=77 mm
Weight kg 19,5
Dimensions (LxDxH) 350 x 540 x 350 mm
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  • STL Series product presentation
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Stephan Schertler introduces this issue with an insight into the company’s motivation for developing new products.

More information on Schertler Acoustics at .

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