Klipsch C-308SWIB 8″ Wireless Ultra-Compact Powered Subwoofer – Black

Brand: Klipsch
Model Number: C-308ASWI
UPC: 743878034295
Model Number: C-308ASWI
UPC: 743878034295

Klipsch C-308SWIB 8″ Wireless Ultra-Compact Powered Subwoofer – Black

  • 300-watt RMS BASH® digital hybrid amplifier
  • 8″ front-firing woven fiberglass driver
  • Two 8″ side-firing passive radiators
  • Frequency response 26-120 Hz (±3db)
  • Variable 40-150 Hz crossover

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Product Description

Features & Specifications



Klipsch C-308SWIB 8″ Wireless Ultra-Compact Powered Subwoofer – Black

Klipsch C-308SWIB subwoofer delivers hard-hitting low frequencies you can hear and feel. Featuring a BASH® Digital Hybrid amplifier and a highly damped, non-resonant woven fiberglass driver and passive radiators, this sonic wonder enhances any speaker system and blends seamlessly with your décor.

Since 1993, Klipsch has developed high-output subwoofers to match the different Klipsch speaker lines. We designed our latest subwoofers to be cross-brand compatible with any speaker or home theater system. Each new subwoofer boasts a modern, unobtrusive design, and features the latest in amplifier and driver technology for unrivalled power and efficient bass extension.

BASH Digital Hybrid Class AB Amplifier

Klipsch C-308SWIB powered subwoofer features a highly efficient BASH digital hybrid class AB amplifier which produces reliable, high-powered sound. The built-in amplifier is rated at 300 watts RMS (650 watts Peak). The RMS power rating indicates power available on a continuous, long-term basis. The Peak power rating indicates power available for large, short-term peaks in your music or movie soundtrack.

8 Inch Fiberglass Woofer

Klipsch C-308SWIB powered subwoofer features a front-firing 8″ woven fiberglass driver for tight musical bass. The woofer employs a large 4-layer aluminum-wound voice coil for high volume output.

Power LED Indicator

Located on the powered subwoofer’s front baffle, this LED indicates the operating status of the unit’s built-in amplifier. The LED will light red when the amplifier is in standby mode and green when the amplifier is on and receiving a signal. If the LED is dark and not lit, the amplifier is off.


The gain control of the Klipsch C-308SWIB adjusts the subwoofer’s volume relative to the rest of your home audio system. If the Klipsch powered subwoofer is connected to the Subwoofer Output (LFE) on your AV receiver, first set the subwoofer volume level control in the receiver to the “half-way” or the “0-dB” position. Then increase the gain of the subwoofer until the subwoofer’s volume level matches the output of your main speakers. After this setup is completed, the volume control of your AV receiver will be the volume control for both the Klipsch powered subwoofer and your connected loudspeakers.


Klipsch C-308SWIB powered subwoofer is equipped with a pair of line-level RCA-type inputs. Most of today’s AV receivers have a line-level subwoofer output (LFE) labeled Subwoofer Pre Out, Sub Out, or SW Out. If your receiver has this output, connect on end of a subwoofer cable to it and connect the other end of the cable into the powered subwoofer’s line-level input labeled “LEFT/LFE”.

The Klipsch powered subwoofer is fitted with a proprietary 4-pin “WA-Port” connector for wireless operation, using Klipsch’s optional WA-2 wireless subwoofer kit (sold separately). The Klipsch WA-2 wireless subwoofer kit consists of two components; a wireless Transmitter & wireless Receiver. The WA-2 wireless subwoofer kit makes adding the Klipsch powered subwoofer to your home theater system much easier.

Brand Klipsch   Model Klipsch C-308ASWI
Product: Klipsch C-308SWIB 8" Wireless Ultra-Compact Powered Subwoofer – Black
Weight 10.89 kg

– Fills any room with high-powered bass
– Highly efficient design produces more output using less energy
– Dimensions: 11" H x 11" W x 11" D
– Stylish, compact subwoofer looks as good as it sounds
– For a simple wireless connection, add an optional Klipsch WA-2 Wireless Subwoofer Kit

– Enclosure: Passive Radiator
– Video Shielded: No
– Woofer Size (inches): 8
– Woofer Composition: Woven fiberglass
– Firing Direction: Front
– Wireless: No
– Preamp-Level Inputs: Yes
– Speaker-Level Inputs: No
– Speaker-Level Outputs: No
– Low-Pass Crossover Freq: 40-150
– High-Pass Crossover Freq: N/A
– Phase Switch: Yes
– Amplifier Output (watts): 300
– Frequency Response: 26-120 Hz

Home Subwoofer Size




Home Subwoofer RMS

300W – 399W

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Klipsch offers a limited 2 year on electronics and 5 years on woofer – Subwoofer Warranty


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