Description
The iK81 is a premium eight-channel Class D power amplifier that combines exceptional power density, advanced DSP processing, and comprehensive network control in a compact 2U chassis. Designed as the dedicated controller amplifier for Martin Audio Wavefront Precision WPM line array systems, it also serves as a powerful multi-channel amplification solution across the Martin Audio loudspeaker portfolio. With integrated Dante™, AES3 connectivity, 96kHz DSP, and VU-NET™ control, the iK81 delivers outstanding audio performance, flexibility, and system management for touring, installed sound, and large-scale professional audio applications.
More Information
Key Features
- Eight-channel Class D amplifier with integrated DSP
- Dedicated controller amplifier for Wavefront Precision WPM systems
- 96kHz DSP processing with FIR filter support
- Dante™ and AES67 network audio compatibility
- AES3 digital and analogue audio inputs
- Advanced loudspeaker management and system optimization
- Ethernet-based remote control via VU-NET™ software
- Bridged operation capability for higher power applications
- Support for 25V, 70V, and 100V line systems
- Dual variable-speed cooling fans with front-to-back airflow
- Compact 2U rack-mount design
- Ideal for touring, installations, and large-scale sound reinforcement
Technical Specifications
- Eight-channel Class D power amplifier
- 1250W per channel @ 2Ω
- 1250W per channel @ 4Ω
- 1250W per channel @ 8Ω
- 625W per channel @ 16Ω
- 2500W bridged per channel pair @ 4Ω
- 2500W bridged per channel pair @ 8Ω
- 625W @ 25V line output
- 1250W @ 70V line output
- 1250W @ 100V line output
- DSP sample rate: 96kHz (48kHz for FIR filters)
- Dynamic range: >113dBA (analogue), >114dBA (AES/Dante)
- Frequency response: 7Hz – 30kHz (-2.5dB, 4Ω load)
- Total harmonic distortion: <0.05% @ 1kHz
- Slew rate: >60V/μs
- Damping factor: >800 @ 8Ω
- Analogue inputs: 4 x Female XLR, 4 x Male XLR link outputs
- AES3 input/link: 1 x Female XLR, 1 x Male XLR
- Dante™ network ports: 2 x RJ45 (Primary and Secondary)
- Speaker outputs: 4 x Neutrik Speakon NL4
- Control protocol: Ethernet
- Control software: Martin Audio VU-NET™
- Cooling: Dual variable-speed fans, front-to-back airflow
- Maximum ambient temperature: 40°C
- Power supply: High-performance Series Resonant
- AC operating range: 85-240V, 47-63Hz
- Mains inrush current: 6A @ 115V, 12A @ 230V
- Mains connector: Neutrik 32A Powercon
- Dimensions: 482 x 88 x 441mm
- Weight: 12.5kg
