The Loudspeaker Kit S250 DIY subwoofer kit is the most popular subwoofer in our lineup. Based around the highly regarded Dayton Audio DVC 12" driver this subwoofer is designed for high quality music applications and for tight home theatre systems.
The S250 is a sealed box design which means that is bass output is very tight and clean and is usually described as "fast" in the audio world. Home cinema is not overlooked as the sheer raw power of the unit means that in moderate sized rooms there is still huge bass output at the all important 25Hz point.
The Loudspeaker Kit S250 DIY Subwoofer Kit Instructions
Photo: Pre-Built S250 in Carbon Fibre Finish. Sold Individually. Finish not included, kit supplied as flat packed raw MDF.
The unit is powered by a US designed 275W amplifier module which features all the usual inputs and outputs and has a built in +6dB boost to overcome the limitations of the sealed box alignment.
The home cinema THX specification calls for a flat power response from the subwoofer down to 20Hz with a relative sound pressure level of at least 105dB SPL. In a typical 4m x 6m room used for home theatre the S250 is capable of producing in excess of 110 dB SPL at maximum output. Actual performance will vary according to your room characteristics of course.
TIP - if you are looking for a sub to use for music & home cinema and have large main speakers then the S250 is the choice for you. It is a more musical sub than the S350 and will be able to keep up with the main speakers in both speed and SPL.
Parts list for one S250:
- 6 piece MDF S250 speaker
- 1 Dayton subwoofer driver
- 1 250W amplifier module
- 1 piece of acoustic stuffing
- Black screws for assembly
- Assembly instructions
| PARAMETER |
VALUE |
| Nominal (RMS)/ Peak Power |
250 / 275 |
| Impedance |
4 Ohms (both coils in parallel) |
| Frequency Range |
20Hz to 160Hz (3dB) in room response |
| Bass Alignment |
Sealed Box with +6dB Active EQ @ 30Hz |
| Max SPL @ 25Hz |
113 dB |
| Lowpass Crossover |
40 - 160 Hz Adjust |
| Phase Control |
Yes |
| Auto On |
Yes |
| Level Adjust |
Yes |
| High + Low Level Inputs |
Yes |
| Woofer |
Dayton Dual Voice Coil |
| Woofer Material |
Kevlar Impregnated Paper |
| Woofer Diameter |
300mm (12") |
| Surround Material |
Low Loss Rubber |
| AC Power |
110 - 240VAC (switch) |
| Dimensions |
450H*400W*400D mm |
| Weight |
30Kg |