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Black cube-shaped powered subwoofer with front-facing 8-inch paper cone driver and vinyl finish

Kanto

Kanto SUB8VMB 300W 8" Sealed Powered Subwoofer home audio speaker

SKU CH-BAEY-5YEMQ

Sealed 8-inch subwoofer with 300 W Class D amp, 35 Hz–175 kHz response, volume and low-pass controls, phase switch, standby power and included RCA cable

  • Sales unitSingle
  • Frequency range35 Hz - 175 kHz
  • Rated impedance4 Ohms
  • Audio sensitivity88 dB
  • Connection typesRCA or 3.55 mm AUX
  • Power supplyAC
  • Sealed design delivers speed and accuracy for tight bass
  • 8-inch paper cone woofer driven by 300W Class D amp
  • 35 Hz low-frequency extension reaches deep into movie effects
  • Compact 11-inch cube fits under desks or in small rooms
  • RCA cable included for quick connection to stereo or AV gear

Compact sealed subwoofer

The Kanto SUB8VMB is a sealed powered subwoofer with an 8-inch paper cone woofer and a built-in Class D amplifier rated at 300W. It connects via RCA or 3.55mm AUX inputs and includes an RCA cable for quick setup. The enclosure measures 11.00 inches wide, 11.00 inches deep and 11.90 inches high, making it small enough to sit under a desk.

Suited for near-field listening

This subwoofer suits desktop systems, small living rooms or apartments where a compact sealed design blends with existing Kanto speakers. It is not for buyers who need higher output for large home-theatre spaces, nor for installations that require wireless connectivity or a dedicated LFE input.

Headroom at reference levels

The 300W amplifier and sealed alignment deliver clean output down to 35 Hz with a frequency response extending to 175 kHz. Sensitivity is rated at 88 dB at 4 Ohms nominal impedance. The low-pass filter and phase switch let you match the subwoofer to main speakers, but the single 8-inch driver cannot pressurise a big room to reference cinema levels.

How it compares

Measured against everything we stock in Home Speakers & Subwoofers, at today’s prices. Recalculated every night.

Price $273.99
Pricier than about 72% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameKanto
Product lineSUB8
Model nameSUB8VMB
Product typeSubwoofer
Product colorBlack
Audio & video
Frequency range35 Hz - 175 kHz
Rated impedance4 Ohms
Audio sensitivity88 dB
Ports & slots
Connection typesRCA or 3.55 mm AUX
Power
Power supplyAC
Size & build
Size and weight18.3
In the box
Sales unitSingle
More details
Remote controllerNo

Questions about this item

Does the subwoofer need a separate amplifier to work?

No, it has a built-in 300W Class D amplifier so it only needs mains power and a signal from your system.

Can I connect it to an older stereo that only has speaker-level outputs?

The unit accepts RCA or 3.55mm AUX line-level inputs only; it does not have speaker-level terminals.

How do I confirm the low-pass filter is set correctly after installation?

Play bass-heavy material and adjust the low-pass frequency control until the subwoofer blends smoothly with your main speakers.

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