Up for sale is a KRK 10s 10-Inch Powered Studio Subwoofer. Designed to extend the low-frequency response of any studio monitor setup down into the sub-bass range (down to 28 Hz), delivering tight, punchy, and accurate low-end definition for mixing, mastering, and production.

​Key Features:

​• 10" Glass-Aramid Composite Woofer: Handles high sound pressure levels with minimal distortion and tight transient response.

• Powerful Active Amplification: Built-in Class-D/AB amplification delivering high headroom and low-frequency power.

• Variable Low-Pass Crossover: Adjustable crossover filter (50 Hz – 130 Hz) allowing seamless integration with nearfield monitors (KRK Rokits, JBL LSRs, Yamaha HS, etc.).

• Flexible I/O Routing: Balanced XLR, 1/4" TRS, and unbalanced RCA inputs and outputs with selectable high-pass filter for connected satellite monitors.

• Phase Switch & Ground Lift: 0° / 180° polarity switch and ground lift switch to eliminate phase cancellation and ground loop hum.

• Footswitch Input Jack: Allows hands-free sub bypass and monitor full-range testing via standard latching footswitch (footswitch not included).

​Cosmetic Condition & Testing:

​• Functionality: 100% fully operational. Tested thoroughly—woofer cone, surround, power amp, and rear controls work cleanly with no rattle, buzzing, or port turbulence.

• Cosmetics: Very good overall with minor cosmetic wear from normal studio use:

​One small nick on the top surface of the cabinet.

​Very slight, faint discoloration on the front right edge (barely visible except under direct inspection).

​Please review all photos for an accurate close-up look.

​What's Included:

• KRK 10s 10" Active Studio Subwoofer

• Standard IEC Power Cable

• One Button Footswitch to turn the sub on or off anytime!

​Local pickup preferred due to weight (~35 lbs).