Description
The iKON iK81 is an advanced 8-channel power amplifier which combines very high power density with superb audio performance, state-of-the-art DSP and network control. A dedicated controller amplifier for the Martin Audio Wavefront Precision WPM line array, the iK81 can also provide multi-channel amplification across the Martin Audio loudspeaker range.The iK81 can deliver a full 1250 watts per channel into 2, 4 or 8 ohms with all channels driven while remaining highly efficient. Its high efficiency reduces the energy drawn from the mains supply and ensures the power reserves needed to deliver superb sound under arduous live conditions.Ethernet is used for system remote control and monitoring via Martin Audio’s VU-NET software application, while a user friendly front panel interface allows full local control of all features. Dante digital audio network inputs are also provided for digital audio distribution and control.Powerful DSP is fully integrated into the iK81 to provide a multitude of features. It also provides up to 1000 FIR filter taps @ 48kHz on each output channel, which is essential to implement DISPLAY’s wide bandwidth optimisation process in the WPM line array.The iK81 employs comprehensive protection functions to maintain safe operating conditions of both the amplifier and the loudspeakers driven — including a sophisticated loudspeaker limiter suite which incorporates peak, RMS and excursion limiting, as well as multiband limiting for passive 2-way systems.Product Features
Eight channels of efficient Class D amplification
Very high power density in 2U rack height
10,000 Watts total power output
High performance 96kHz DSP on all inputs and outputs (48kHz on outputs when implementing FIR filters)
Switch mode power supply
Global mains operation, 85V to 240V auto-sensing
Intuitive, user-friendly, front panel interface
Analogue, AES3 and Dante™ digital audio network inputs
Ethernet network for system control and monitoring via Martin Audio VU-NET™ software application
Comprehensive protection and monitoring functions
Applications
Dedicated controller amplifier for Martin Audio WPM line array
Versatile multi-channel amplification for Martin Audio loudspeaker systems
Product SpecificationsGENERAL
TYPE: Eight-channel Class D amplifier
POWER OUTPUT (*):
1250W into 2Ω
1250W into 4Ω
1250W into 8Ω
2500W bridged per channel pair, 4Ω or 8Ω
CV LINE OUTPUT (*):
625W, 25V line
1250W, 70V line
1250W, 100V line
DIGITAL SIGNAL PROCESSING: 96kHz/48kHz DSP on all inputs and outputs
COOLING: Dual vari-speed fans, front-to-back airflow
MAXIMUM AMBIENT TEMPERATURE: 40°C (104°F)
AUDIO INPUTS/OUTPUTS
ANALOGUE IN/LINK (4 CHANNELS):
4 x female
4 x male Neutrik™ XLR
ANALOGUE INPUT IMPEDANCE: 20kΩ balanced to ground
MAXIMUM ANALOGUE INPUT LEVEL: +20dBu
AES3 IN/LINK (2 CHANNELS): 1 x female, 1 x male Neutrik™ XLR, balanced
DANTE™ (4 CHANNELS): 2 x shielded RJ45, primary and secondary
AMPLIFIER OUTPUTS: 4 x Neutrik Speakon™ NL4
AUDIO PERFORMANCE
DYNAMIC RANGE:
>113dBA, analogue input
>114dBA AES/Dante™ input
FREQUENCY RESPONSE: 7Hz-30kHz (‐2.5dB points, 4Ω load)
TOTAL HARMONIC DISTORTION: <0.05% typical @ 1kHz, 4Ω load
SLEW RATE: >60V per microsecond
DAMPING FACTOR: >800 at amplifier output, ref 8Ω
CONTROL AND MONITORING NETWORK
PROTOCOL: Ethernet
CONTROL APPLICATION: Martin Audio VU-NET™
DIGITAL SIGNAL PROCESSING
SAMPLE RATE: 96kHz (48kHz for FIR filter implementation)
PHYSICAL INPUTS:
4 x analogue
2 x AES
4 x Dante™ inputs routable to four DSP drive modules
DRIVE MODULE INPUT DSP: Input signal routing, delay, gain, HPF, Phase, MuteEQ: 2 x low shelf, 6 x PEQ/bandpass and FIR shelving filters
DRIVE MODULE OUTPUT DSP: Source, delay, gain, Phase, Mute, crossover filters, limitersEQ: low shelf, 8 x PEQ / band pass and shelving filters
POWER SUPPLY
TYPE: High performance Series Resonant
AC INPUT OPERATING RANGE: 85 – 240V ~ AC, 47 - 63Hz
MAINS INRUSH CURRENT: 6A at 115V, 12A at 230V (max for <10ms)
MAINS CONNECTOR: Neutrik 32A Powercon™
PHYSICAL
DIMENSIONS:
(W) 482 x (H) 2U/88mm x (D) 441mm
(W) 18.98in x (H) 2U/3.46in x (D) 17.35in(incl handles and optional rear support)
WEIGHT: 12.5kg (27.5lbs)
