Musway D8v4

The brand new Musway 8-channel DSP power amplifier, the D8v4, not only brings a breath of fresh air into the world of Class D amplifiers with DSP, but also sets new standards in the "extremely compact" category. On the outside, it resembles its predecessor, but under the hood, a lot has changed: Musway engineers have made the seemingly impossible possible and increased the power by a whopping 40% - without increasing the size of the heat sink. This is made possible by state-of-the-art Infineon® power chips, which not only deliver more power, but are also significantly more energy-efficient.

With dimensions of just 127 x 207 mm and a remarkable output of 8 x 100 watts RMS into 2 ohms, the Musway is one of the world's most compact 8-channel DSP power amplifiers in the 100 watts per channel class. Musway itself remains pleasingly conservative with regard to the power rating: in the test report in Car & Hifi 02/2025, the test laboratory determined significantly more power - in the end, 8 x 82 watts into 4 ohms and even 8 x 142 watts into 2 ohms were recorded.

The D8v4 is not only a different caliber in terms of power, but also in comparison to conventional Plug+Play power amplifiers: On the input side, it has an impressive eight high-level channels with EPS, which can handle up to 18 volts at the input. The heart of the D8 is of course the integrated 10-channel DSP, which is extremely versatile. The DSP also has two additional outputs that can be integrated for connecting external amplifiers, e.g. for driving subwoofers. The external amplifier can then also be operated via a PC or smartphone app using an optional Bluetooth dongle.

Features:

- Intelligent high level input with EPS® (Error Protection System)

- Start-stop ready, automatic switch-on function

- Burr-Brown converter (PCM3168A) and Analog Devices DSP (ADAU1452)

- Soft clipping (power attenuation) in 2 Ohm mode

- Signal-to-noise ratio 95dB

- Frequency response 15 Hz - 22 kHz (-3dB)

- Distortion factor 0.01% (1 kHz, 4 Ohm, 90% power)

- Dual 32bit, 330 MHz DSP technology, controllable via DSP software and smartphone app

- External Bluetooth® USB dongle BTS, BTS-HD & BTA2 for audio streaming & app control (optional)

- Digital remote control DRC1 with OLED display for controlling various DSP functions (optional)

Technical data:

8 x 70/100 watts RMS @ 4/2 ohms or

4 x 200 watts RMS @ 4 ohms bridged

Dynamic Headroom Technology (DHR)*:

- Channel 1-8: up to 125 watts RMS @ 2 ohms per channel

8 x high level input 10 - 18 V/RMS

2 x AUX input (RCA) 4 V/RMS

1 x optical/stereo input (PCM, 96 kHz / 24 bit)

8 x speaker output amplified

2 x RCA preamplifier output (configurable via DSP)

Dimensions: 205 x 37 x 127 mm

Operating instructions
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Test report
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DSP software
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