![](https://www.alconsaudio.com/wp-content/uploads/2019/09/Alcons-Audio-BF121_front_00-green.jpg?x64526)
BF121
compact subwoofer- High-output, direct-radiating 12” subwoofer system
- Long-excursion double-spider 12” woofer with 4” voice-coil
- Optimal drive performance with ALC amplified loudspeaker controller
- SIS™ pre-wired for very high damping and further reduced distortion
- Low impedance for efficient amplifier loading
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2015/04/bf151.png?x64526)
BF151 mkII
compact subwoofer- High-output, direct-radiating 15” subwoofer system
- Extended-excursion vented-spider 15” woofer
- Optimal drive performance with ALC amplified loudspeaker controller
- SIS™ pre-wired for very high damping and further reduced distortion
- Low impedance for efficient amplifier loading
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2015/04/BF181-front1-e1433337618863.jpg?x64526)
BF181 mkII
compact subwoofer- High-output, direct-radiating 18” subwoofer system
- Extended-excursion vented-spider 18” woofer
- X-venting™ for maximum breathing capacity
- SIS™ pre-wired for very high damping and further reduced distortion (with ALC)
- Low impedance for efficient amplifier loading
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2015/04/BF302-front-236x450.jpg?x64526)
BF302 mkII
high-output subwoofer- High-output, direct-radiating double 15” subwoofer system
- Extended-excursion vented-spider 15” woofers
- Individual vents/chambers for improved breathing capacity
- Optimal drive performance with ALC amplified loudspeaker controller
- SIS™ pre-wired for very high damping and further reduced distortion
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2015/04/BF362-front-284x450.jpg?x64526)
BF362 mkII
high-output subwoofer- High-output, bass-reflex loaded subwoofer system
- Double extended-excursion vented-spider 18” woofers
- X-venting™ for maximum breathing capacity
- Optimal drive performance with ALC amplified loudspeaker controller
- SIS™ pre-wired for very high damping and further reduced distortion
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2015/04/BQ211-front-e1433337685218.jpg?x64526)
BQ211
compact high-output subwoofer- Double-tuned, quarter-wave loaded high-impact subwoofer system
- 21” woofer with all-carbon cone for high pressure loading
- Large, rounded vent for improved breathing and low compression
- Force-ventilated 5.3" voice-coil for low power compression prolonged performance
- SIS pre-wired for very high damping and further reduced distortion (with ALC)
- Front-positioned NL4 connector for easy cardioid connection
![](https://www.alconsaudio.com/wp-content/uploads/2022/11/BC272-front-599x450.png?x64526)
BC272
medium-output cardioid subwoofer- Double-tuned, bass-reflex loaded cardioid-control subwoofer system
- Single 15” woofer with 12” woofer in cardioid arrangement
- Large vents for improved breathing and low port compression
- Low impedance for efficient amplifier loading
- SIS pre-wired for very high damping and further reduced distortion (with ALC)
- Selectable cardioid patterns with up to 42dB rearward rejection
![](https://www.alconsaudio.com/wp-content/uploads/2024/04/BC332-00-front-model-v1-281x450.png?x64526)
BC332
cardioid subwoofer- Double-tuned, bass-reflex loaded cardioid-control subwoofer system
- Single 18” woofer with 15” woofer in cardioid arrangement
- Large vents for improved breathing and low port compression
- Selectable cardioid patterns with up to 42dB rearward rejection
- SIS pre-wired for very high damping and further reduced distortion (with ALC)
- Low impedance for efficient amplifier loading
![](https://www.alconsaudio.com/wp-content/uploads/2024/04/BC543-00-front-model-281x450.png?x64526)
BC543
very high-output cardioid subwoofer- Double-tuned, bass-reflex loaded cardioid-control subwoofer system
- Triple 18” woofer with all-carbon cone for high pressure loading
- 5.3" voice-coils for low power compression and accurate performance
- Large, centrally-located vent for improved breathing and low compression
- Selectable cardioid rearward rejection patterns with up to 42dB rearward rejection
- SIS pre-wired for very high damping and further reduced distortion (with ALC)