Kommander-KA04 – 4x150W@4Ω Class-D Amplifier with DSP

The Kommander-KA04 is a fully featured 4x150W@4Ω class-D amplifier with a high-performing DSP, the Integrated Electronic Brain (IEB) running on osKar custom operating system powered by a quad-core 1.5 GHz processor.

It offers pristine sound and complete control over connected loudspeakers, functioning as a standalone unit or integrated with other K-array amplifiers for complex applications. The osKar system supports REST API for easy third-party integration.

The dedicated K-array Connect mobile app provides a user-friendly interface for remote DSP control and signal routing configuration. K-framework3 software enables professionals to design and tune large systems over wired LAN.

Specifications

General

• Type: 4ch switching mode, Class D Amplifier
• Output Power: 4x 150 W @ 4 Ω
• Impedance: Minimum 4 Ω
• Frequency Response: 20 Hz – 20 kHz (±1 dB)
• Connectors:
  • Input: 4x BAL input (Euroblock 1.5/3-ST-3.81), 3.5 mm jack unBAL analog stereo AUX input, TOSLINK optical input
  • Output: 2x Euroblock 2.5/4-G-5.08
  • Digital: 4x USB-A 2.0, 1x RJ45 Ethernet, Bluetooth 4.1 LE, Wi-Fi IEEE 802.11 b/g/n
  • Power: 1x PowerCon TRUE IN
• Built-in DSP: Grouping, Input EQ, Output EQ, Signal Routing, Level adjustment, Dynamic Limiters, Delay
• Remote Control: Wi-Fi via K-array Connect app; Ethernet via K-framework3 software
• Main Operating Range: 100-240V ~ AC, 50-60 Hz with PFC
• Power Consumption: 150 W @ 4 Ω load, Pink noise, 1/8 rated power
• Protections: Over Temp, Short Circuit/Overload, Power Limiting, Clip Limiter, High Frequency Protection

Handling and Finishes

• IP Rating: IP20
• Dimensions (W x H x D): 219 x 46 x 320 mm (8.6 x 1.8 x 12.6 in)
• Weight: 1.2 kg (2.65 lb)
• Material: Aluminum