Monitor Audio IA125-4 Amplifier

Name: Monitor Audio IA125-4 Amplifier
Brand: Monitor Audio
SKU: MAIA1254
Price: 3300.00 NZD
Availability: InStock

$3,300.00

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The Monitor Audio IA125-4 is a versatile four-channel amplifier designed to deliver clean, controlled power for premium home cinema and multi-room audio systems. With 125 watts per channel, it provides the performance needed to drive surround, height and secondary zone speakers with confidence.

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Specifications

Channels: 4
Output power at 4Ω / 8Ω: 4 × 125 W
Bridged output: 2 × 250 W
70 V / 100 V output: 2 × 250 W bridged
Power Sharing: Up to 2 × 250 W
Frequency response: 20 Hz–20 kHz, +0 / -0.25 dB
Signal-to-noise ratio: >106 dB, A-weighted
THD+N: <0.05%
Output voltage: 70 Vp / 140 Vpp single-ended; 140 Vp / 280 Vpp bridged
Power consumption: 150 W
Standby consumption: <0.5 W
Thermal output: 512 BTU
Power supply: Switch-mode with Power Factor Correction
Operating voltage: 100–240 V, 50/60 Hz
Protection: Short circuit, DC, undervoltage, temperature and overload protection
Dimensions: 44 × 220 × 325 mm
Rack size: 1U, half-width
Finish: Black anodised
Rack mount kit: Sold separately
Wall/desktop mount kit: Sold separately

The Power Behind the Performance

Its flexible power-sharing design allows available output to be directed where it is needed most, while advanced DSP and dedicated Monitor Audio speaker profiles help optimise performance with compatible loudspeakers.

Compact, efficient and easy to integrate into a wider system, the IA125-4 is an excellent choice for expanding a high-performance home cinema or powering additional rooms without compromising sound quality.

Who is this for?

The Monitor Audio IA125-4 is ideal for anyone building or expanding a premium home cinema and needing additional high-quality amplification without taking up a lot of space. Its four-channel design makes it particularly well suited to powering surround speakers, Dolby Atmos height channels or compatible Monitor Audio Cinergy speakers.

It’s also a great choice for multi-room audio systems where several speakers need clean, reliable power from a compact amplifier. With flexible Power Sharing and built-in DSP, the IA125-4 is especially suited to systems where performance, flexibility and tidy integration are all important.

What is the Monitor Audio IA125-4 designed for?
The IA125-4 is a compact four-channel power amplifier designed for premium home cinema, multi-room audio and custom speaker systems. It is particularly well suited to powering surround, height and secondary-zone speakers.

How much power does the IA125-4 deliver?
The IA125-4 delivers 125 watts per channel across four channels. It can also use Power Sharing to provide up to 250 watts to two channels when more power is required.

Can the IA125-4 be used in a home cinema system?
Yes. The IA125-4 is a strong choice for expanding a home cinema system, especially for Dolby Atmos height channels, surround speakers or additional zones. It can also be used with compatible Monitor Audio Cinergy speakers.

Does the IA125-4 include DSP?
Yes. The amplifier includes configurable DSP, allowing the system to be optimised for the speakers and installation. Dedicated Monitor Audio speaker profiles are also available for compatible models.

Can the IA125-4 be bridged?
Yes. The amplifier can operate in bridged mode to provide higher output where required, with up to 250 watts available per bridged channel.

Can I use the IA125-4 with an AV receiver or processor?
Yes. The IA125-4 is a power amplifier, so it is designed to be used with an AV receiver or surround processor that provides pre-amplifier outputs.

Is the IA125-4 suitable for Dolby Atmos?
Yes. Its four-channel design makes it particularly useful for powering Dolby Atmos height speakers in larger home cinema systems.

How large is the IA125-4?
The IA125-4 uses a compact half-width, 1U chassis, making it easy to integrate into an equipment rack or custom installation without taking up excessive space.

Does the IA125-4 have built-in streaming or volume control?
No. The IA125-4 is dedicated to power amplification. Source selection, surround decoding and volume control are handled by your AV receiver, processor or other pre-amplifier.

Frequently Asked Questions

What is the Monitor Audio IA125-4 designed for?
The IA125-4 is a compact four-channel power amplifier designed for premium home cinema, multi-room audio and custom speaker systems. It is particularly well suited to powering surround, height and secondary-zone speakers.

How much power does the IA125-4 deliver?
The IA125-4 delivers 125 watts per channel across four channels. It can also use Power Sharing to provide up to 250 watts to two channels when more power is required.

Can the IA125-4 be used in a home cinema system?
Yes. The IA125-4 is a strong choice for expanding a home cinema system, especially for Dolby Atmos height channels, surround speakers or additional zones. It can also be used with compatible Monitor Audio Cinergy speakers.

Does the IA125-4 include DSP?
Yes. The amplifier includes configurable DSP, allowing the system to be optimised for the speakers and installation. Dedicated Monitor Audio speaker profiles are also available for compatible models.

Can the IA125-4 be bridged?
Yes. The amplifier can operate in bridged mode to provide higher output where required, with up to 250 watts available per bridged channel.

Can I use the IA125-4 with an AV receiver or processor?
Yes. The IA125-4 is a power amplifier, so it is designed to be used with an AV receiver or surround processor that provides pre-amplifier outputs.

Is the IA125-4 suitable for Dolby Atmos?
Yes. Its four-channel design makes it particularly useful for powering Dolby Atmos height speakers in larger home cinema systems.

How large is the IA125-4?
The IA125-4 uses a compact half-width, 1U chassis, making it easy to integrate into an equipment rack or custom installation without taking up excessive space.

Does the IA125-4 have built-in streaming or volume control?
No. The IA125-4 is dedicated to power amplification. Source selection, surround decoding and volume control are handled by your AV receiver, processor or other pre-amplifier.