Audimaxim MA2300 Class D Power Amplifier

The Audimaxim MA2300 is quite an interesting amplifier, particularly if you're looking for a lot of power without having a huge, heavy Class A/AB power amp.

Audimaxim MA2300 — at a glance

The MA2300 is a two-channel Class D power amplifier designed primarily to be used with a separate preamplifier, DAC/preamp or AV processor. Audimaxim specifies:

2 × 300 W into 8 Ω
2 × 500 W into 4 Ω
Class D amplification
RCA and XLR inputs
15 kΩ balanced input impedance
30 kΩ unbalanced input impedance
THD <0.01% at 100 W
Signal-to-noise ratio >100 dB
20 Hz–20 kHz ±0.1 dB
Approx. 8 kg
110–240 V, 50/60 Hz
Standard 19-inch rack-mount capability

That is an impressive amount of power from an amplifier weighing only around 8 kg.

🔊 What does 300 W actually mean?

The headline specification is 300 watts per channel into 8 ohms, rising to 500 W per channel into 4 ohms.

That's serious power for a domestic stereo system.

It means the MA2300 should have no trouble driving many demanding floorstanding speakers, particularly speakers whose impedance drops significantly at certain frequencies.

The 4-ohm specification is particularly interesting because it suggests the amplifier is designed to maintain substantial output as the speaker load becomes more demanding.

🎵 What is it supposed to sound like?

This is where the MA2300 becomes interesting.

A review published by Stereo+ and reproduced in discussion around the amplifier described its presentation as very balanced, without an obvious emphasis towards either bright or dark. The review specifically praised its bass control, dynamics, detail retrieval and ability to produce a large soundstage.

In other words, it doesn't appear to be designed as a deliberately "warm" or "romantic" amplifier.

It's more about:

Power + control + neutrality + detail.

That makes sense for a power amplifier because you can then choose the character of the system through the preamp/source and loudspeakers.

 One of its biggest advantages

The size is remarkable.

At roughly 8 kg, with a height of only around 6.6 cm, it's considerably easier to accommodate than a traditional high-power Class AB amplifier. A Norwegian dealer specifically highlighted the combination of substantial power and the amplifier's compact dimensions.

Class D also has an efficiency advantage, meaning you don't have to dissipate as much heat as you would with many conventional high-powered linear amplifiers.

RCA AND XLR

This is another useful feature.

You can connect the MA2300 using either:

RCA → MA2300

or

XLR → MA2300

The XLR inputs are particularly useful if you're building a balanced system around a preamp or DAC with balanced outputs.

 Is it any good?

Based on the specifications and the available listening reports, yes, it looks like a very serious power amplifier.

What makes it particularly interesting is the combination of:

300 W / 8 Ω + 500 W / 4 Ω + compact Class D design

rather than simply being another small Class D amplifier.

It also received notably positive attention in the Norwegian hi-fi community, including being highlighted as a strong-value product, with one contemporary dealer description calling attention to its combination of power, dynamics and resolution.

One thing I'd want to establish before buying one

The MA2300 isn't a complete integrated amplifier.

You need something in front of it providing the volume control and source selection — for example:

Streamer/DAC → Preamp → MA2300 → Speakers

or:

Streamer/DAC with volume control → MA2300 → Speakers

That distinction is important if you're considering it for an Eden Audio system.