Building on KRK’s legacy of sonic accuracy and performance, the new KRK S8.4 subwoofer deliver tight, accurate, and defined bass, while it's highly efficient Class D power amplifier dramatically increase transient response, control, and punch. A wealth of connectivity options means you can hook up to practically anything without adapter hassles, and a four-position crossover frequency selection switch makes it easy to adjust the subwoofer setting to optimally match your existing monitors.

Refinements in the latest generation of KRK subwoofers include modestly improved low frequency extension, improved porting for much better low frequency phase response and less port noise, a more durable inverted dustcap, optional removable grilles, redesigned cabinets with lower height profiles and less depth than their predecessors for improved placement flexibility, and a timeless design with a more professional aesthetic."

Key Features

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

Plays well with others
Dedicated crossover and optional High-pass filter bypass means that our subwoofers are the perfect compliment to powered monitors. From mixing and mastering to sound design, broadcast and production work - KRK has you covered.

Specifications
Configuration: Front Loaded, Vented Subwoofer
System Type: Active Subwoofer
Low-Frequency Transducer: 8" Glass Aramid Composite Woofer
Frequency Response: 34.5Hz - 133Hz
Max Peak SPL: 112.8 dB
Amplifier: Class D
Power Output (Continuous): 109 Watts @ 1% THD+N @ 46Hz
Signal to Noise Ratio: 92 dB
Amplifier Distortion (THD + N): ≤ 0.1% @-3dB Of Max Power Output 35Hz-133Hz
Input Impedance: 9.4 KΩ Balanced, 9.2 KΩ Unbalanced
Ground Lift: On/Off
HPF Bypass: With 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: N/A
Output Connectors: XLR L/R, 1/4" TRS L/R, RCA L/R
AC Power Input: 100VAC-240VAC
Enclosure: 15 mm and 18 mm Reinforced MDF
Finish: Black Vinyl Wrap, Baffle - Black Paint
Hardware: EVA Isolation Pad
Dimensions (H x W x D): (H x W x D): 11" (279 mm) x 16.125" (410 mm) x 11.5" (292 mm)
Weight: 26.5 lb. (12 kg.)