Monitor Audio

Monitor Audio IA125-4 Installation Amplifier

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  • back panel of monitor audio ia125-4 installation amp

Monitor Audio

IA125-4

$2,800.00
$2,800.00

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IA125-4

This compact, ultra-high power density DSP amplifier delivers four channels of 125 W or two channels of 250 W. All from a convenient 1U half-size design.

The IA125-4 is a deceptively powerful amplifier that packs ultra-high-density amplification into its compact 1U half-rack form. It delivers 4-channels of 125 W or 2-channels of 250 W. Plus, it can be used in power sharing mode to support Monitor Audio’s THX Ultra certified, Cinergy 100 speakers within a home theatre system or medium sized garden. It’s the ideal amplifier for two zone stereo applications and height channels within home theatre systems.

Key Features

  • 4 x 125 W/2 x 250 W
  • Fully customisable DSP amplifier with web configurator
  • Half width 1U rack format allows unique installation opportunities or high power density depending on how the product is mounted
  • High performance Class D amplifiers ensure excellent power and sound delivery
  • Power Sharing technology
  • Supports 70/100V line level speakers

Specifications

Amplifier & Channels

  • Channel Count: 4
  • Power Output @ 4 Ω / 8 Ω: 4 × 125 W (SE)
  • Power Output @ 70 V / 100 V: 2 × 250 W (BTL)
  • Power Sharing (maximum): 2 × 250 W
  • Polarity (Default): Non-inverting

Audio Performance

  • Signal-to-Noise Ratio: >106 dB (A-weighted, 20 Hz–20 kHz, 8 Ω load)
  • THD+N (typical): <0.05% (20 Hz–20 kHz, 8 Ω load, 3 dB below rated power)
  • Frequency Response: +0 / −0.25 dB (20 Hz – 20 kHz, 8 Ω load, 3 dB below rated power)
  • Output Voltage: 70 Vp / 140 Vpp (SE unloaded)
  • Output Voltage: 140 Vp / 280 Vpp (BTL unloaded)

Power & Thermal

  • Power Consumption: 150 W
  • Thermal Output: 512 BTU
  • Standby Power Consumption: <0.5 W

Power Supply & Protection

  • Power Supply: Switch-mode PSU with PFC and standby converter
  • Operating Voltage / Frequency: Universal mains, 100–240 V, 50–60 Hz
  • Protection Circuits: Short circuit, DC, undervoltage, temperature, overload
  • Power Ratings: 1% THD @ 120 Vac and 230 Vac

Physical Specifications

  • Dimensions (H × W × D): 44 × 220 × 325 mm
  • Dimensions (H × W × D): 1.7 × 8.7 × 12.8 in
  • Cabinet Finish: Black anodised

Accessories

  • Rack mount kit: Included
  • Wall / Desktop mount kit: Optional (sold separately)

General

  • Warranty: 5 years
  • SE: Single Ended
  • BTL: Bridge Tied Load
  • BTU: British Thermal Unit