HomeSpeakerKRK S10.4 Active Studio Subwoofer

KRK S10.4 Active Studio Subwoofer

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£449.00 £404.10 inc. VAT
In stock
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SKU: DJK45788

KRK S10.4 Active Studio Subwoofer Special Offers When bought with this product

KRK S10.4 Active Studio Subwoofer Product Description

The KRK S10.4 is an active subwoofer for studio use with a 10" woofer and built in Class D amplifier.

You can pair the S10.4 sub with any active studio monitors like the KRK RP7 or RP5 to add some low end punch.  The S10.4 has selectable crossover frequencies to send just the mid-high ranges to your tops or just bypass and sen the full range signal.

Bypass Footswitch

Mix with confidence. The bypass footswitch control allows you to quickly mute the sub and send full-range audio to your recording monitors.

Heavy Duty Enclosure

KRK Subwoofers feature reinforced MDF enclosures for maximum strength and durability. Never let a spilled beer or wild ninja roundhouse kick stop your mixing session again.

Front-firing Port

KRK engineered the front port to provide low frequency extension while reducing boundary coupling. The unique shape is optimized to avoid port turbulence.


S10.4 Features

  • 10" glass aramid composite woofer
  • Bass extension to 27Hz with a max SPL of 117.2 dB
  • Footswitch control enables/disables sub and crossover filter (footswitch not included)
  • Redesigned cabinet with a lower profile and front-firing bass port
  • Powerful, lightweight Class D amplification
  • Optimized four-position crossover control
  • Universal connectivity: XLR, 1/4" TRS, and RCA inputs and outputs
  • Polarity and input sensitivity controls
  • Ground lift switch prevents ground loops

KRK S10.4 Active Studio Subwoofer Bundles


Technical Specs


Front Loaded, Vented Subwoofer

System Type

Active Subwoofer


10" Glass Aramid Composite Woofer

Frequency Response

30Hz - 110Hz

Max Peak SPL

117.2 dB


Class D

Power Output (Continous)

160 Watts @ 1% THD+N @ 44Hz

Signal to Noise Ratio

92 dB

Amplifier Distortion (THD + N)

≤ 0.12% @-3dB Of Max Power Output 31Hz-110Hz

Input Impedance

9.4 KΩ Balanced, 9.2 KΩ Unbalanced

Ground Lift


HPF Bypass

With Footswitch Only





Input Connectors

XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch

LFE Input


Output Connectors

XLR L/R, 1/4" TRS L/R, RCA L/R

AC Power Input



15 mm and 18 mm Reinforced MDF


Black Vinyl Wrap, Baffle - Black Paint


EVA Isolation Pad

Dimensions (H x W x D)

(H x W x D): 13.4375" (341 mm) x 18.875" (479 mm) x 12.1875" (310 mm)


35 lb. (15.88 kg.)

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KRK S10.4 Active Studio Subwoofer Reviews

Do you own the KRK S10.4 Active Studio Subwoofer? Why not write a review based on your experience with it.
10 May, 2022
Superb add-on for your KRK monitors, really taking the lower end to its limits, but with some testing & setup for your respective room, provides a warm & balanced lower end to suit all music styles.
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KRK S10.4 Active Studio Subwoofer Ranking

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KRK S10.4 Active Studio Subwoofer
£404.10 inc. VAT

Delivery And Stock Information

Free next working day delivery on all orders over £50 placed before 3:30pm Monday to Friday.

Orders placed at the weekend or after 3.30pm on Friday will be delivered on the following Tuesday (excluding Bank Holidays).

Larger items / orders e.g large bass speakers or multiple speakers may have to be shipped via a pallet service which may take 1-2 days.

Free next day delivery applies only to the UK mainland for orders over £50. Other locations will be charged as follows:

    • Highlands and Islands 2-3 Days* + £25
    • Northern Ireland 2-3 Days* +£10
    • Deliveries will be made subject to the terms and conditions of the courier company. will not be held responsible for late deliveries.

In the event that the items ordered are unavailable for next day delivery, you will be contacted by to arrange a suitable delivery date.

"In stock" means that the product displayed is either in stock with ourselves or our suppliers and is available for delivery. Stock levels are subject to change without prior notice.


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Finance Available!

0% Interest Free Finance!
0% Finance on all orders over £280
10% deposit then 12 months payment of £25.07

You can apply for finance to purchase this item. A minimum 10% deposit is required and you can opt for either 12, 24 or 36 monthly payments thereafter 17.9% APR.

KRK S10.4 Active Studio Subwoofer
from £14.66/month

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