They'll hear you comin' when you hook up an amp to this dual 10" thumper. The new KS2400BP mounts two Jensen subs inside a stylish enclosure behind a cool Plexiglas window. Power handling is a hefty 125 watts x 2 channels.

  • frequency response 20-150 Hz
  • handles up to 125 watts/channel RMS
  • peak power handling 375 watts/channel
  • 4-ohm impedance (can be wired 4-ohm stereo, 2-ohm mono, or 8-ohm mono)
  • sensitivity 96 dB
  • 24-1/16"W x 12-11/16"H x 16-7/8"D
  • 1-year warranty

Enclosed Subwoofers 101

An enclosed subwoofer is a box with a subwoofer already installed. The advantage to buying an enclosed sub is that the manufacturer made the sub, then designed and built the box as a perfect match, so you'll get the best possible performance. Every enclosed sub has a maximum RMS power handling rating, so pair it with an amp with a similar RMS power rating to get the best performance.

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Hands-on research

What's in the box?

Download owner's manual

  • 3-chamber bandpass box with 2 subwoofers installed and attached plexiglass window
  • Owner's manual with warranty info
  • Consumer information card
  • Specifications on packing carton

Features and Specs

Woofer Size (inches) 10
Woofer Material Coated Paper
Enclosure Type Bandpass
Color Black
Pieces in System 1
Width (inches) 24-1/16
Height (inches) 12-11/16
Depth (inches) 16-7/8
Second Depth (inches) 16-7/8
Connector Type Spring Clips
Frequency Response 20-150 Hz
Power Range (Watts RMS) 20-125
Maximum Wattage 375
Sensitivity 96 dB
Impedance 4 ohms
Parts Warranty 1 YEAR
Labor Warranty 1 YEAR

Product Research


There are four 3" port openings on the top of the box.

Both woofers are visible behind the front clear plexiglas window. "JENSEN" is silk screened in black across the middle of the window, and a border around the edge of  the window is silk screened in black.

The panel to which the woofers are mounted is covered with gray box carpeting.

The woofers are black, have a foam surround, and a white "KS" graphic on them.

Two sets of spring clip terminals are mounted on the rear of the box.

More specs/Notes

Power Handling Specs:

  • 4-ohm Stereo: 125 watts RMS x 2 (375 watts peak x 2)
  • 2-ohm mono: 250 watts RMS x 1 (750 watts peak x 1)
  • 8-ohm mono: 250 watts RMS x 1 (750 watts peak x 1)

This box can be wired for 4-ohm stereo, 2-ohm mono or 8-ohm mono operation.

The power handling specification in the Crutchfield database is "per woofer."

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.