QSC KS112

The QSC KS112 is a compact active subwoofer designed for users who want high output, easy handling, and professional performance in a relatively small package. It is ideal for musicians, DJs, clubs, event production, and installations where powerful bass is needed without the system becoming unnecessarily large or cumbersome.

Powerful bass in an ultra-compact format
The KS112 is built around a 12-inch long-throw woofer in a 6th-order bandpass design, delivering deep and punchy bass from a very compact enclosure. The subwoofer features a 2000 W peak Class D amplifier and delivers up to 128 dB peak SPL. The frequency response is specified as 41 Hz – 108 Hz (-6 dB) and the frequency range as 38 Hz – 121 Hz (-10 dB), making it well-suited for both music and live applications where a clear and controlled low-frequency response is required.

Designed for mobile and fixed use
The datasheet describes the KS112 as a subwoofer for both installation and portable entertainment applications. The cabinet is constructed from 15 mm birch plywood and comes with four low-noise, heavy-duty casters, making it easy to transport and rig despite its robust construction.

Flexible placement
A major advantage of the KS112 is that it can be used in both vertical and horizontal orientations. The model is equipped with dual M20 threaded pole mounts for secure attachment of a speaker pole in both positions. This provides greater flexibility when setting up in various types of sound systems.

Simple controls and professional connections
The KS112 features gain controls, selection via a rotary encoder, and two function buttons, making it easy to adjust the system as needed. It offers a variable crossover frequency and the ability to save and recall presets for common applications. On the connection side, there are 2 x lockable XLR/6.3 mm combo inputs, 2 x XLR loop-thru outputs, and an IEC power connection.

Robust and discreet design
The subwoofer has a professional and discreet appearance that fits into many environments. The black finish and compact form factor make it equally suitable for mobile setups and fixed installations. An optional KS-LOC protective cover is also available to prevent unauthorized access to the controls.

Specifications
Type: Active subwoofer, 6th-order bandpass
Driver: 12” (305 mm)
Amplifier: Class D, 2000 W peak
Frequency response: 41 Hz – 108 Hz (-6 dB)
Frequency range: 38 Hz – 121 Hz (-10 dB)
Max SPL: 128 dB peak @ 1 m
Connections: 2 x XLR/6.3 mm combo in, 2 x XLR loop-thru out
Cabinet: 15 mm birch plywood
Dimensions: 622 x 394 x 616 mm
Weight: 28.4 kg including wheels
Mounting: Dual M20 mounts for vertical or horizontal placement
Included accessories: 4 x low-noise heavy-duty wheels