KRK S10.4

The KRK S10.4 is an active studio subwoofer. A specially tuned glass-aramid composite woofer provides tight and precisely defined bass, while the Class D amplifier significantly increases transient response, control, and punch. A 4-position switchable crossover makes it easy to match the subwoofer settings to your existing monitors. Pairing the S10.4 with KRK monitors or other studio monitors delivers an optimised listening experience with extended low-frequency response, while a footswitch bypass control allows you to quickly mute the subwoofer and send the full-range audio to your studio monitors.

Key Features of the KRK S10.4 Subwoofer

Front-ported active subwoofer
10" glass-aramid composite woofer
Bass extension down to 27Hz with a maximum SPL of 117.2dB
Footswitch control enables/disables the subwoofer and crossover filter (footswitch not included)
Redesigned cabinet with a lower profile and front-firing bass reflex port
Powerful and lightweight Class D amplifier
Power and standby indicator
Optimised 4-position crossover control
Universal connectivity – XLR, 6.3mm TRS, and RCA inputs and outputs
Polarity and input sensitivity control
Ground lift switch prevents ground loops

Thoughtful Design

The KRK S10.4 subwoofer uses a reinforced MDF cabinet for maximum strength and durability. The front port is designed to provide extended low-frequency response while limiting coupling with surrounding surfaces. The port's shape is optimised to reduce air turbulence.

Package Contents:
KRK S10.4 subwoofer, isolation pad
Technical Specifications:
Output Power (Continuous): 160W at 1% THD+N at 44Hz
Signal-to-Noise Ratio: 92dB
Amplifier Distortion (THD + N): ≤ 0.12% at -3dB of max power output from 31–110Hz
Input Impedance: 9.4kΩ balanced, 9.2kΩ unbalanced
Input Connectors: XLR L/R, 6.3mm TRS L/R, RCA L/R, 6.3mm footswitch jack
Output Connectors: XLR L/R, 6.3mm TRS L/R, RCA L/R
Power Supply: 100–240VAC
Cabinet: 15mm and 18mm reinforced MDF
Finish: Subwoofer – black vinyl wrap, front panel – black paint
Isolation Pad Material: EVA