KRK Systems S8.4 8″ Powered Studio Subwoofer

$479.00

  • 8″ powered studio subwoofer with glass-aramid composite woofer
  • 109W Class D amplification for tight, controlled bass
  • Four-position selectable crossover for monitor integration
  • Optional bypass footswitch for quick A/B reference
  • Balanced XLR, TRS and RCA connectivity
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Description

The KRK Systems S8.4 Powered Studio Subwoofer delivers accurate, tight and controlled low-frequency extension in a compact form factor, making it ideal for smaller studio spaces and desktop production environments. Designed to complement KRK studio monitors and other professional monitoring systems, the S8.4 enhances your mixing and listening experience with extended low-end precision.

Featuring a custom-voiced 8” glass-aramid composite woofer, the S8.4 provides defined bass with excellent damping and control. The high-efficiency Class D amplifier improves transient response and punch while maintaining reduced operating temperatures for reliable performance during extended sessions.

The four-position selectable crossover allows seamless integration with your existing monitors, while the optional bypass footswitch lets you instantly mute the subwoofer and send full-range audio directly to your monitors for accurate mix referencing without powering down the system.

With balanced XLR, TRS and RCA inputs and outputs, plus ground lift and high-pass filter bypass functionality, the S8.4 integrates easily into professional studio setups. Built with reinforced MDF construction and a front-firing port optimized to reduce turbulence and boundary coupling, the enclosure ensures durability and consistent low-frequency performance.

Compact yet powerful, the KRK S8.4 is a dependable solution for producers and engineers who need accurate bass response without sacrificing studio space.


Specification

System:
Configuration: Front Loaded, Vented Subwoofer
System Type: Active (Powered) Studio Subwoofer

Driver:
Low-Frequency Transducer: 8″ Glass Aramid Composite Woofer

Performance:
Frequency Response: 34.5 Hz – 133 Hz
Max Peak SPL: 112.8 dB
Signal to Noise Ratio: 92 dB
THD+N: ≤ 0.1% (-3 dB of max output, 35 Hz–133 Hz)

Amplification:
Amplifier Type: Class D
Continuous Power Output: 109 W @ 1% THD+N @ 46 Hz

Connectivity:
Input Connectors: XLR L/R, 1/4″ TRS L/R, RCA L/R, 1/4″ Footswitch
Output Connectors: XLR L/R, 1/4″ TRS L/R, RCA L/R
Input Impedance: 9.4 kΩ (Balanced), 9.2 kΩ (Unbalanced)
Ground Lift: On/Off
HPF Bypass: Via optional footswitch

Power:
AC Input Voltage: 100–240 VAC (Universal)

Construction:
Enclosure: 15 mm & 18 mm reinforced MDF
Finish: Black vinyl wrap (baffle: black paint)
Isolation: EVA isolation pad

Physical:
Dimensions (H×W×D): 279 × 410 × 292 mm (11″ × 16.13″ × 11.5″)
Weight: 12 kg (26.5 lb)