KRK S8.4

Pre owned. In good conditions. The only visible sign of wear is shown in the photo. Original packaging not included.

The KRK S8.4 studio subwoofer stands out for its balance between compact dimensions and sonic precision, reflecting the brand’s commitment to accurate and detailed listening. Equipped with an 8-inch glass-aramid composite woofer, it is designed to deliver tight and controlled low frequencies, with an extension down to 29 Hz and a maximum peak sound pressure level of 112.8 dB. The powerful, lightweight, and efficient Class D amplifier ensures fast transient response and precise sound control, enhancing dynamics without sacrificing clarity.

The adjustable four-position crossover allows the subwoofer to integrate easily with existing monitor systems, blending seamlessly with KRK studio speakers as well as other brands. The cabinet has been redesigned with a lower profile and a front-firing port, engineered to extend low frequencies while minimizing wall coupling and reducing internal turbulence.

The enclosure, made of reinforced MDF, guarantees solidity and long-term durability, making it resistant to accidental impacts or unforeseen conditions.

A unique feature is the bypass control via footswitch, allowing the subwoofer and crossover filter to be quickly disabled, sending full-range audio directly to the monitors without turning off the device. Connection versatility is ensured by the presence of XLR, 1/4" TRS, and RCA inputs and outputs, along with polarity and input sensitivity controls and a ground lift switch to prevent ground loops.

The KRK S8.4 is not just a simple subwoofer but an essential tool for those looking to achieve an optimized mixing and listening experience, with precise and controlled low-frequency extension in any context, from music production to audio post-production.

Technical Specifications:

• Configuration: Front loaded active subwoofer with vented port
• System type: Active subwoofer
• Low-frequency transducer: 8" glass aramid composite woofer
• Frequency response: 34.5 Hz – 133 Hz
• Max peak SPL: 112.8 dB
• Amplifier: Class D
• Power output (continuous): 109 Watts @ 1% THD+N @ 46 Hz
• Signal-to-noise ratio: 92 dB
• Amplifier distortion (THD + N): ≤ 0.1% at -3 dB of max power output, 35 Hz – 133 Hz
• Input impedance: 9.4 kΩ balanced; 9.2 kΩ unbalanced
• Ground lift switch: On/Off
• HPF bypass: Footswitch only
• Footswitch: Optional
• Indicators: Power/Standby
• Input connectors: XLR L/R; 1/4" TRS L/R; RCA L/R; 1/4" Footswitch
• LFE input: Not available
• Output connectors: XLR L/R; 1/4" TRS L/R; RCA L/R
• AC power input: 100 VAC – 240 VAC
• Enclosure: 15 mm and 18 mm reinforced MDF
• Finish: Black vinyl wrap; front baffle in black paint
• Dimensions (H x W x D): 279 mm x 410 mm x 292 mm
• Weight: 12 kg