The amplifier mounted on board is class D, delivering 2 x 2000W at 4Ω. One of the two amplifying channels is dedicated to an output Speakon to connect to many kinds of speaker configurations, including single mid-high modules (KP52, KP102), multiple line arrays or the passive version of an additional bass module (KMT21P , KMT18P or KMT12P).

The rear panel provides input for a balanced line signal, a balanced microphone signal with phantom power, and digital signals in AES/EBU protocol, also on an XLR for ease of cabling. An integrated touch screen provides intuitive managing and editing of powerful DSP controlling: Input and output levels, internally generated test signal, In/Out routing, speakon output delay (up to 12 ms.), subwoofer delay (up to 12 ms.), overall system delay (up to 330 ms.).

All DSP functions, including EQ can be controlled with remote managing software via USB or RS485, again conveniently on a standard XLR. There are 40 different DSP presets, specifically made by K-Array to optimize the system performance of the variety of device configuration available. In addition the user can also create, save, and store his/her own personal presets on the KMT21 module. The unique four-corner port configuration gives symmetrical back loading to the speaker for extended bass response with very low distortion. This also gives incredible structural strength to the cabinet despite its light weight. Pocket handles and an M20 thread mount position for attaching mid-high speakers makes the KMT21 convenient to use and ideal for medium throw applications in theaters, concert halls, and Audio/Video installations.

All KTM21 components are designed by the K-Array R&D department and custom-made under the K-Array quality control system.

• Unique performance-to-size ratio
• Fitted with integral handles and castors
• Direct radiating, long excursion 21” driver
• Ultra fast set-up and dismantling system
• DSP on-board with dedicated presets
• Analog and digital AES-EBU inputs
• RS485 and USB connectivity for remote control