The KRK S10.4 subwoofer delivers precise bass and a rich feature set, taking low-frequency performance to the next level.

• Features:
• 10-inch Glass aramid woofer
• Bass extension at 28Hz with a maximum SPL of 117dB
• Footswitch control to activate/deactivate the sub and the crossover filter (footswitch not included)
• Curved design with the bass port at the front of the speaker for flexibility in placement
• Class-D amplification
• Four-position crossover selection
• Universal connectivity: XLR, 1/4" TRS, and RCA inputs and outputs
• Polarity and input sensitivity controls
• Stainless steel grill and reinforced 15 mm MDF enclosure
• Ground lift switch

• Technical Specifications:
• Type: Front Loaded, Vented Subwoofer
• System Type: Active Subwoofer
• Low-Frequency Woofer: 10" Glass Aramid Composite
• Frequency Response: 34Hz - 130Hz
• Max Peak SPL: 117.2 dB
• Amplifier: Class D
• Power Output (Continuous): 160 Watts @ 1% THD+N @ 44Hz
• Signal to Noise Ratio: 92 dB
• Amplifier Distortion (THD + N):
• Input Resistance: 9.4 KΩ Balanced, 9.2 KΩ Unbalanced
• Ground Lift: On/Off
• Low Pass Frequency: 28Hz-156Hz
• HPF Bypass: Only with footswitch
• Phase: 0 or 180 Degrees
• System Volume: -30 dB to +6 dB
• Indicators: Power/Standby, Sub On/Mute, HPF Bypass
• Input Connections: XLR L/R, 1/4" TRS L/R, RCA L/R, 1/4" Footswitch
• LFE Input: N/A
• Output Connections: XLR L/R, 1/4" TRS L/R, RCA L/R
• AC Power Input: 100VAC-240VAC
• Cabinet Material: 15mm reinforced MDF
• Color: Black Vinyl Wrap
• Grill: Steel Perf
• Dimensions (H x W x D): 15" (382mm) X 14" (355mm) X 16.06" (408mm)
• Weight: 34.5 lb. (15.6 kg)