The S12.4 powered studio subwoofer builds upon KRK’s legacy for sonic accuracy and stellar performance. The custom-made, Kevlar® woofer delivers ultra-tight, defined bass, while the Class-D power amplifier dramatically increases transient response, control, and punch. The four-position selectable crossover lets you adjust the subwoofer setting easily to your existing monitors.
Pairing the S12.4 with KRK or another studio monitor delivers an optimized listening and mixing experience with extended low end, while the exclusive bypass-control feature provides full range audio to the monitors without switching off the subwoofer. The powerful S12.4 subwoofer doesn’t just deliver precise, ultra-low bass and a rich feature set: it’s the next dimension in subwoofer performance.
S12.4 Features
12" Kevlar® Composite Woofer
Bass extension to 26Hz with a max SPL of 119 dB
Footswitch control enables/disables sub and crossover filter (footswitch not included)
Curved design with front-firing bass port for placement flexibility
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
18 mm reinforced MDF enclosure provide maximum strength and protection
Ground lift switch prevents ground loops
Configuration
Front Loaded, Vented Subwoofer
System Type
Active Subwoofer
Low-Frequency
12" Woven Kevlar® Woofer
Frequency Response
32Hz - 139Hz
Max Peak SPL
119.9 dB
Amplifier
Class D
Power Output (Continous)
220 Watts @ 1% THD+N @ 44Hz
Signal to Noise Ratio
92 dB
Amplifier Distortion (THD + N)
= 0.3% @-3dB Of Max Power Output 29Hz-97Hz
Input Impedance
9.4 K? Balanced, 9.2 K? Unbalanced
Ground Lift
On/Off
Low Pass Frequency
26Hz-130Hz
HPF Bypass
With Footswitch Only
Footswitch
Optional
Phase
0 or 180 Degrees
System Volume
-30 dB to +6 dB
Indicators
Power/Standby, Sub On/Mute, HPF Bypass
Input Connectors
XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch
LFE Input
Balanced TRS
Output Connectors
XLR L/R, 1/4" TRS L/R, RCA L/R
AC Power Input
Selectable 110V-120V / 220V0240V
Enclosure
18mm Reinforced MDF
Finish
Black Vinyl Wrap
Hardware EVA Isolation Pad
Dimensions (H x W x D)
18.11" (460mm) X 15.94" (405mm) X 22.64" (575mm)
Weight
66.5 lb. (30.1 kg)