Name: iKON iK81
Rating: 4.7 (23 reviews)

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.

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 the WPM, O-Line, XE300, TORUS 8 and FlexPoint systems.
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.

Martin Audio iKON iK81 | High Power, Eight-Channel Class D Amplifier

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.

Links

User guide Electronics Brochure Datasheet

Specification

General
TYPE	Eight-channel Class D amplifier
POWER OUTPUT (*)	1250W into 2Ω 1250W into 4Ω 1250W into 8Ω 625W into 16Ω 2500W bridged per channel pair, 4Ω 2500W bridged per channel pair, 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 1 x AES pair with link output 4 x Dante™ inputs routable to four DSP drive modules
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
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)

Loudspeaker Compatibility

	16 Ω	8 Ω	4 Ω	2 Ω	8 Ω Bridged	4 Ω Bridged
	625w	1250w	1250w	1250w	2500w	2500w
CDD
CDD5	N/A	✓	✓	✓	N/A	N/A
CDD6	N/A	✓	✓	✓	N/A	N/A
CDD8	N/A	✓	✓	-1.1dB	N/A	N/A
CDD10	N/A	✓	✓	-2.0dB	N/A	N/A
CDD12	N/A	✓	✓	-2.8dB	N/A	N/A
CDD15	N/A	✓	-1.1dB	✗	N/A	N/A
FlexPoint
FP4	✓	✓	✓	✓	N/A	N/A
FP6	✓	✓	✓	-3.0dB	N/A	N/A
FP8	N/A	✓	✓	-2.0dB	N/A	N/A
FP12	N/A	✓	-0.5dB	-3.5dB	N/A	N/A
FP15	N/A	✓	-2.0dB	✗	N/A	N/A
LE Monitors
LE100	N/A	✓	✓	✗	N/A	N/A
LE200	N/A	✓	-1.1dB	✗	N/A	N/A
O-LINE
O-Line	✓	✓	✓	✓	N/A	N/A
SX Subwoofers
SX110	N/A	✓	✓	-2.0dB	N/A	N/A
SX210	N/A	N/A	✓	-2.0dB	N/A	N/A
SX112	N/A	✓	-1.1dB	✗	N/A	N/A
SX212	N/A	N/A	-1.1dB	✗	N/A	✓
SX115	N/A	-1.1dB	✗	✗	✓	-1.1dB
SXC(F)115	N/A	-2.0dB	✗	✗	✓	-2.0dB
SX215	N/A	N/A	✗	✗	N/A	-1.1dB
SX118	N/A	-2.0dB	✗	✗	✓	-1.1dB
SXC(F)118	N/A	-2.0dB	✗	✗	✓	-1.1dB
SX218	N/A	-2.0dB	✗	✗	✓	-1.1dB
SXH(F)218	N/A	N/A	✗	✗	✗	✗
TH Series
THS	N/A	-1.1dB	✗	✗	N/A	N/A
THH(V)	N/A	-0.8dB	✗	✗	N/A	N/A
TORUS
T8	N/A	✓	✓	-1.1dB	N/A	N/A
T12	N/A	✓	-1.1dB	✗	N/A	N/A
Wavefront Precision
WPM	✓	✓	-2.8dB	✗	N/A	N/A
WPS	N/A	✓	✗	✗	N/A	N/A
WPC	N/A	✓	✗	✗	N/A	N/A
WPL	N/A	✗	✗	✗	N/A	N/A
XE Monitors
XE300	N/A	✓	✓	✗	N/A	N/A
XE500	N/A	N/A	✗	✗	N/A	N/A

Architectural Specs

iKON iK81

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.

Technical Drawings & 3D Models

All information is Copyright. Martin Audio Ltd.

Technical Drawings for iK81

DWG PDF

3D SketchUp Models for iK81

none currently available

Revit File

none currently available

Accessories

iK81AMPRACK-UK

Amplifier rack
for iK81

Features

Applications

Links

iKON iK81

Available in this Series

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