• CI Amp IA125-4
  • IA1254 1
  • IA1254 2

CI Amp IA125-4

Product Ref: IA1254

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.


Technical Specifications



Output Power @ 4 Ohms/8 Ohms

4 x 125W SE

Output Power @ 70/100V

2 x 250 BTL

Poweshare (up to)

2 x 250 W

Power Consumption

150 W​

Thermal Output

512 BTU

Polarity (Default)



44 x 220 x 325 mm​ (13/4 x 811/16 x 115/8")

Output Voltage​

70Vp / 140Vpp (SE unloaded), 140Vp / 280 Vpp (BTL unloaded)

Signal to Noise Ratio

>106dB (A-weighted, 20 Hz – 20 kHz, 8 Ohm load)​

THD+N (typical)​

<0.05% (20 Hz – 20 kHz, 8 Ohm load, 3db below rated power)​

Frequency Response

+0/-0.25dB 20Hz - 20kHz (8 Ohm load, 3dB below rated power)

Protection Circuits​

Short circuit -, DC, Undervoltage -, Temperature – and Overload protection​

Power Supply​

Switch mode power supply with Power Factor Correction (PFC) and standby converter

Operating​ Voltage/Frequency

Universal Mains, 100 V – 240 V, 50 Hz – 60 Hz​

Standby Consumption​

<0.5 W​


Rack Mount Kit, Wall/desktop mount kit (sold seperatley)

Power Ratings​

1% THD @ 120Vac and 230Vac​

Cabinet Finish

Black Anodised

* SE - Single Ended
** BTL - Bridge Tied Load
*** BTU - British Thermal Unit

Product 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

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