ElectronicsInstalled SoundLive Sound


Four-Channel 2000W Class D Amplifier

Martin Audio VIA2004 Four-Channel Class D Amplifier
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The VIA2004 is an advanced 4-channel power amplifier which delivers superb audio performance in a lightweight, cost-effective package. Delivering 4×500 watts into 4 ohms, it is ideal for powering O-Line, ADORN and CDD Series installations in bars, auditoriums and HoW, as well as small-medium scale portable sound reinforcement and club use.


  • Four channels of efficient Class D amplification
  • 2000 Watts total power output
  • 2U rack height
  • Exceptionally lightweight
  • Switch mode power supply
  • Variable speed cooling fan with front-to-back airflow
  • Global mains operation, 115V to 230V auto-sensing
  • Comprehensive protection systems
  • Signal and clip limiter LEDs


  • Small to medium-scale installations
  • Portable sound and stage monitoring
  • Hotels, restaurants and bars
  • Houses of Worship and auditoriums
  • Educational facilities
  • Live music and dance clubs
  • Mobile DJ’s

Its high efficiency design reduces the energy drawn from the mains supply and ensures the power reserves needed to deliver superb sound in demanding environments with reliability and ease.

Comprehensive protection functions continuously monitor its performance to maintain safe operating conditions and full output capability in ambient temperatures up to 40°C.

For a wide variety of installations and portable applications, the VIA2004 is ideally partnered with the Martin Audio DX0.4 or DX0.6 system processor. Larger installations will benefit from use with the DX4.0 processor with its onboard network capability and proprietary VU-NET software control. The DX4.0 and VIA2004 combination is perfect for delivering cost-effective scalable resolution under VU-NET control to an installed O-Line array.

User guide Electronics Brochure Datasheet
TYPE Four-channel Class D amplifier
  • 4 x 500W into 4 ohms
  • 4 x 250W into 8 ohms
COOLING Vari-speed fans, front-to-back airflow
Audio Inputs/Outputs
ANALOGUE IN/LINK (4 CHANNELS) 4 x female, 4 x male Neutrik™ XLR
ANALOGUE INPUT IMPEDANCE 5 kΩ typical, balanced
AMPLIFIER OUTPUTS 4 x Neutrik Speakon™ NL4
Audio Performance
FREQUENCY RESPONSE 20Hz - 20kHz +/- 0.45dB, 4 ohm load
TOTAL HARMONIC DISTORTION 0.003% typical, 1kHz @ 1W
Power Supply
TYPE 2 x high current, high frequency switch-mode
AC OPERATING RANGE 100-240V +/-10% 45 - 65Hz
MAINS CONNECTOR 1 x Neutrik Powercon™
TOTAL SYSTEM EFFICIENCY 89% (4 x 250W into 8 ohms)
  • (W) 482 x (H) 2U/88mm x (D) 441mm
  • (W) 19in x (H) 2U/3.5in x (D) 17.4in
incl handles and optional rear support
WEIGHT 8kg (17.6lbs
Architectural Specs
Martin Audio VIA2004

The amplifier shall be a four-channel Class D amplifier with dual switch-mode power supplies and shall operate from a range of mains voltages from 100-240V +/- 10%, 45-65Hz. Cooling shall be provided by variable-speed fans with front-to-back airflow.

The amplifier shall deliver 500W per channel into 4 ohms, 250W per channel into 8 ohms, all channels driven. Frequency response with a 4 ohm load shall be 20Hz-20kHz +/- 0.45dB. Analogue inputs shall be electronically balanced with a typical input impedance of 5kΩ. Maximum input level shall be +20dBu.

The front panel of the amplifier shall have a mains power switch and four input level controls with LED metering to show signal level, clip and protect status.

The rear panel of the amplifier shall be provided with four female XLR input connectors and four male XLR link connectors. Loudspeaker outputs shall be on four Neutrik Speakon™ NL4 connectors. A Neutrik Powercon™ connector shall provide mains power connection.

Dimensions (W x H x D) including handles and optional rear support shall be 482mm x 2U/88mm x 441mm (19in x 2U/3.5in x 17.4in). Weight shall be 8kg (17.6lbs).

The amplifier shall be the Martin Audio VIA2004.

Technical Drawings & 3D Models
Martin AudioVIA2004 Tech Drawing

All information is Copyright. Martin Audio Ltd.

Technical Drawings for VIA2004



3D SketchUp Models for VIA2004

none currently available


Revit File 

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