|TYPE||Eight-channel Class D amplifier|
|POWER OUTPUT (*)|
|CV LINE OUTPUT (*)|
|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)|
|ANALOGUE IN/LINK (4 CHANNELS)|
|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|
|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|
|CONTROL APPLICATION||Martin Audio VU-NET™|
|Digital Signal Processing|
|SAMPLE RATE||96kHz (48kHz for FIR filter implementation)|
|DRIVE MODULE INPUT DSP||Input signal routing, delay, gain, HPF, Phase, Mute |
EQ: 2 x low shelf, 6 x PEQ/bandpass and FIR shelving filters
|DRIVE MODULE OUTPUT DSP||Source, delay, gain, Phase, Mute, crossover filters, limiters |
EQ: low shelf, 8 x PEQ / band pass and shelving filters
|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™|
|DIMENSIONS||(W) 483 x (H) 2U/89mm x (D) 357mm|
(W) 19in x (H) 2U/3.5in x (D) 14.1in
(incl handles and optional rear support)
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.
- 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
- Dedicated system amplifier for the Wavefront Precision Series
- Versatile multi-channel amplification for Martin Audio loudspeaker systems
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.
LinksUser guide Electronics Brochure
The amplifier shall provide eight output channels of Class D amplification with 96kHz DSP (Digital Signal Processing) on all inputs and outputs. It shall have both analogue and AES3 digital inputs and shall incorporate capabilities for remote system control and monitoring via Ethernet. A front panel user interface with a backlit display shall provide local control.
It shall be equipped with four analogue input connectors, four analogue link connectors, a dual-channel AES3 input connector and a dual-channel AES3 link connector, as well as an Ethernet port. Dante™ digital audio network primary and secondary connectors shall also be provided for digital audio distribution and control. Four output connectors, shall be of the Neutrik Speakon™ NL4 type, with each connector carrying two output channels.
Analog inputs shall each have an input impedance of 20kΩ, electronically balanced to ground.
The amplifier shall be equipped with a switch mode power supply with auto-sensing global mains operation from 85 -240 V AC, 47 - 63Hz. Dual vari-speed fans with front-to-back airflow shall be employed for cooling and the amplifier shall incorporate comprehensive monitoring and protection functions to maintain safe operating conditions of both itself and the loudspeaker systems driven.
The output power shall be 8 x 1250W into 2 ohms with a crest factor of 4 (12dB), 8 x 1250W into 4 ohms with a crest factor of 2.8 (9dB) and 8 x 1250W into 8 ohms with a crest factor of 2 (6dB), all channels driven.
Dimensions (W x H x D) shall be 483mm x 2U/89mm x 357mm (19in x 2U/3.5in x 14.1in). Weight shall be 12.5kg (27.5lbs).
The amplifier shall be the Martin Audio iKON iK81.