The brand new Musway 8-channel DSP power amplifier, the D8v4, not only brings a breath of fresh air to the world of Class D amplifiers with DSP, but also sets new standards in the “extremely compact” category. Externally, it looks similar to the previous model, but a lot has changed under the hood: Musway engineers have made the seemingly impossible possible and increased the performance 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 also work significantly more energy efficiently.

With dimensions of just 127 x 207 mm and the remarkable performance of 8 x 100 watts RMS at 2 ohms, the Musway is one of the world’s most compact 8-channel DSP power amplifiers in the 100 watt per channel class. Musway itself remains pleasingly conservative when it comes to specifying the power: In the test report in Car & Hifi 02/2025, the test laboratory determined significantly more power – in the end, the protocol showed 8 x 82 watts at 4 and even 8 x 142 watts at 2 ohms.

The D8v4 is a different caliber not only 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 that can handle up to 18 volts at the input. The heart of the D8, of course, remains 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 via a smartphone app using an optional Bluetooth dongle.

Features:

• High Level Input with EPS® (Error Protection System)
• Start-Stop ready, Auto Turn-On
• Burr-Brown converters (PCM3168A) and Analog Devices DSP (ADAU1452)
• Dual 32bit, 330 MHz DSP technology, controllable via PC software or Smartphone App
• Soft-Clipping (power attenuation) in 2 Ohm operation
• Signal-to-noise Ratio 90dB
• Frequency Response 15 Hz – 22 kHz (-3dB)
• THD 0,1% (1 kHz, 4 Ohms, 90% Power)
• External Bluetooth® USB-Dongles BTS, BTS-HD & BTA2 for Audio Streaming & App Control (optional)
• Digital remote control DRC1 with OLED display for controlling various DSP functions (optional)

Specifications:
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: per Channel up to 125 Watts RMS @ 2 Ohms

8 x High Level Input with EPS®
2 x AUX Input RCA
1 x Optical Input/Stereo PCM
8 x Loudspeaker Output amplified
2 x Pre-Amplifier Output RCA (configurable via DSP)
Dimensions: 205 x 37 x 127 mm