British Design | Performance Loudspeakers | Experts Since 1972
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.
Note: Rack and wall/desk installation kits sold separately.
18/03/24 - Download firmware V1.6.2 from this link. This has a number of bug fixes and feature improvements. For a full list of these and instructions on what to do, please download our guide from this link.
Due to the confidence we have in the quality, robust design, and sound performance of our speakers, Monitor Audio offers a 5-year warranty on our streamers and amplifiers, matching or exceeding market standards.
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4
4 x 125W SE
2 x 250 BTL
2 x 250 W
150 W
512 BTU
Non-inverting
44 x 220 x 325 mm (13/4 x 811/16 x 115/8")
70Vp / 140Vpp (SE unloaded), 140Vp / 280 Vpp (BTL unloaded)
>106dB (A-weighted, 20 Hz – 20 kHz, 8 Ohm load)
<0.05% (20 Hz – 20 kHz, 8 Ohm load, 3db below rated power)
+0/-0.25dB 20Hz - 20kHz (8 Ohm load, 3dB below rated power)
Short circuit -, DC, Undervoltage -, Temperature – and Overload protection
Switch mode power supply with Power Factor Correction (PFC) and standby converter
Universal Mains, 100 V – 240 V, 50 Hz – 60 Hz
<0.5 W
Rack Mount Kit, Wall/desktop mount kit (sold seperatley)
1% THD @ 120Vac and 230Vac
Black Anodised
5 years
IA125-4