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Kanto SUB6 v2 Subwoofer Review
Kanto SUB6 v2 - Front View

Main Features

  • 6" Paper Woofer
  • 100 watts RMS Output
  • 40-175 Hz Frequency Response
  • Weight: 11.02 lbs / 5.00kg
  • Dimensions (H x W x D): 9-1/2" x 8-11/16" x 8-11/16"
MSRP: $300 (list price)
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Kanto SUB6 v2 Subwoofer Review
Kanto SUB6 v2 Kanto SUB6 v2
See at AMAZON

SUB6 v2 is a Sealed type Powered Subwoofer by Kanto with a frequency range of 40-175 Hz. It was released in 2025. It features 1 x 6" Paper Woofer, and powered by a Class D 100 watts amplifier.

A sealed 6 inch paper-cone subwoofer on a 100 W RMS (200 W peak) Class D amplifier, in a 22 cm cube meant to sit under a desk beside Kanto's powered speakers. Line-level RCA in, with low-pass and phase controls.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response

Kanto SUB6 v2 has a Frequency response range of 40-175 Hz at ±3dB.

Here we have a comparison of how SUB6 v2's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
Kanto SUB6 v2
Min
Average
Max
High Frequency
Subwoofer Speakers
Kanto SUB6 v2
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 300$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the Kanto SUB6 v2's 40Hz:

  • Sony SA-CS9 with Low Frequency of 28 Hz (Compare w/ SUB6 v2)
  • Jamo C 912 with Low Frequency of 29 Hz (Compare w/ SUB6 v2)
  • Klipsch R-10SWi with Low Frequency of 32 Hz (Compare w/ SUB6 v2)
  • Klipsch R-100SW with Low Frequency of 32 Hz (Compare w/ SUB6 v2)
  • Jamo C 910 with Low Frequency of 32 Hz (Compare w/ SUB6 v2)

Inputs and Outputs

  • PreampLevel Inputs: Stereo RCA line level

Kanto SUB6 v2 External Dimensions and Weight

Kanto SUB6 v2 has external dimensions of (Height x Width x Depth) 9-1/2 x 8-11/16 x 8-11/16inch (241.0 x 220.0 x 220.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Kanto SUB6 v2 is approximately 484.0cm2 / 75.0inch2.

Weight

The Kanto SUB6 v2 weighs 5.00kg / 11lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how SUB6 v2's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
Kanto SUB6 v2
Min
Average
Max
Weight
Subwoofer Speakers under $300
Kanto SUB6 v2
Min
Average
Max

Cabinet type and Materials

Kanto SUB6 v2 has a Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.

Does the Kanto SUB6 v2 come with a Grille?

SUB6 v2 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the Kanto SUB6 v2.

  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

Official Product Page

Official manufacturer's product page for the Kanto SUB6 v2 speaker can be found below:
Official Product Page for Kanto SUB6 v2

Warranty

2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.

Kanto SUB6 v2 Detailed Specifications

General
BrandKanto
Full Model NameKanto SUB6 v2
TypePowered Subwoofer
Release Date2025
Frequency Response40-175 Hz
Enclosure TypeSealed
EnclosureAcoustic Suspension
Firing DirectionFront
Amplifier & Driver
Power (RMS)100 watts
Power (Peak)200 watts
Amplifier TypeClass D
Woofer6-inch Paper

Controls & Connections
Phase ControlYes
Line-level InputsStereo RCA line level
Physical
Dimensions (HxWxD)9-1/2" x 8-11/16" x 8-11/16" (241.0 x 220.0 x 220.0mm)
Weight5.00kg ( 11.02 lbs)
GrilleYes
Parts Warranty2 Years
Labor Warranty2 Years
Kanto SUB6 v2 Alternatives in Powered Subwoofer Speakers
Model Frequency Woofer Amp Power Dimensions
Polk Monitor XT12
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24-160k Hz 12" 50 watts 16-7/16inch x 16-1/16inch x 19-1/16inch "
SVS SB-1000 Pro
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20-270k Hz 12" 325 watts 13-1/2inch x 13inch x 15-13/16inch "
B&W DB4S
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28-120k Hz 12" 200 watts 16-5/8inch x 16inch x 20-15/16inch "
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30-160k Hz 10" 150 watts 14-9/16inch x 14-1/16inch x 20-13/16inch "
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32-120k Hz 10" 150 watts 14-5/8 x 12-9/16 x 18-1/16inch"
Wharfedale SW-15
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Klipsch SPL-100
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27-125k Hz 10" 200 watts 16-7/16 x 14-1/16 x 18-13/16inch"
B&W ASW610
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27-140k Hz 10" 200 watts 12-5/8 x 12-1/4 x 15-1/2inch"
KEF KUBE 8b
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34-140k Hz 8" 300 watts 11-9/16 x 11-5/8 x 13-5/16inch"
KEF KUBE 10b
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24-140k Hz 10" 300 watts 14-5/8 x 14 x 15-5/8inch"
B&W ASW608
Compare
32-140k Hz 8" 200 watts 10-11/16 x 10-1/4 x 13-3/4inch"
JBL Stage A120P
Compare
32-150k Hz 12" 250 watts 16-5/16 x 15-7/16 x 18-11/16inch"
Klipsch SPL-120
Compare
24-125k Hz 12" 300 watts 17-11/16 x 14-3/4 x 21-1/4inch"
Frequently Asked Questions about Kanto SUB6 v2

How low can the Kanto SUB6 v2 go?

The Kanto SUB6 v2 has a frequency response of 40-175 Hz. Its low-end extends to 40Hz.

How much power does the Kanto SUB6 v2 have?

The Kanto SUB6 v2 has a built-in 100-watt RMS (200-watt peak) Class D amplifier.

Is the Kanto SUB6 v2 sealed or ported?

The Kanto SUB6 v2 uses a Sealed enclosure. Sealed subwoofers trade a little output for tighter, more accurate bass and a smaller cabinet, which many listeners prefer for music.

What driver does the Kanto SUB6 v2 use?

The Kanto SUB6 v2 has a 6-inch Paper driver.

Does the Kanto SUB6 v2 have app control or room correction?

Yes. The Kanto SUB6 v2 offers phase control, letting you dial the sub into your room and blend it with your speakers.

How do you connect the Kanto SUB6 v2?

The Kanto SUB6 v2 connects via line-level Stereo RCA line level inputs.

How big and heavy is the Kanto SUB6 v2?

The Kanto SUB6 v2 weighs 5.00kg / 11lbs and measures 9-1/2" x 8-11/16" x 8-11/16" (HxWxD).

How much does the Kanto SUB6 v2 cost?

The Kanto SUB6 v2 has a manufacturer's list price (MSRP) of $300.

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