Power that never strains
120 watts to each speaker at 4 ohm, 200 at 2 ohm, or bridge to 400 watts a side. Under 0.02% distortion and a signal to noise ratio above 107 dB.
4 x 120W Class D
Musway MINI4S
Four Channels. Bluetooth Built In.
A compact Class D four channel with 120 clean watts per channel at 4 ohm, 200 at 2 ohm, or 400 watts a side bridged. Bluetooth streaming, EPS high-level inputs, and a remote level controller in the box.
$659.95Free shipping
Free nationwide shipping
3 year warranty included
30 day hassle-free returns
Secure encrypted checkout
0:00 / 0:00
2021 to 2026
Hi-Fi Product of the Year
100% German
Engineered and measured
3 Year
Warranty on every unit
Plug and Play
Factory-fit integration
Why drivers upgrade
Big four channel power in a mini chassis.
Factory head units clip long before your speakers do. The MINI4S gives all four corners real power, streams straight from your phone, and keeps your radio, screen, and controls exactly where they are.
Bluetooth streaming built in
Stream music from your phone straight into the amplifier, no extra dongle needed. Add the myCON controller for hands-on control from the dash.
Fits where nothing else does
220 by 150 by 45 mm. Under a seat, behind a kick panel, or in a trunk corner, with auto turn-on from your factory speaker wires.
Built for the details
Full system control in a chassis that hides anywhere.
4 x 120W Class D
120W at 4 ohm, 200W at 2 ohm, 2 x 400W bridged at 4 ohm (13.8 V)
Integrated Bluetooth
Stream audio from your phone directly into the amplifier.
Flexible Crossovers
High pass on channels 1 and 2, high, low or band pass on channels 3 and 4, plus 0 to 12 dB bass boost.
107 dB Signal to Noise
Under 0.02% THD+N and a damping factor of 300. Silent between tracks, clean at volume.
EPS High-Level Inputs
Connects to factory speaker wires with error protection and auto turn-on via DC offset or signal.
Start-Stop Ready
Stays stable down to 8.5 volts through engine start-stop cycles.
Technical specifications
| Amplifier type | 4-channel full range Class D |
|---|---|
| Power at 4 ohm | 4 x 120W (13.8 V), 4 x 130W (14.4 V) |
| Power at 2 ohm | 4 x 200W (13.8 V), 4 x 210W (14.4 V) |
| Bridged at 4 ohm | 2 x 400W (13.8 V), 2 x 420W (14.4 V) |
| Frequency response | 4 to 39,000 Hz (-3 dB) |
| Signal to noise | greater than 107 dB |
| THD+N | under 0.02% |
| Damping factor | 300 |
| Input sensitivity | high level 1.5 to 20 V, low level 0.7 to 10 V |
| Crossovers | CH1/2 high pass 50 to 5,000 Hz. CH3/4 high pass 10 to 500 Hz, low pass 50 to 5,000 Hz |
| Bass boost | 0 to 12 dB at 45 Hz |
| Bluetooth | integrated audio streaming |
| Start-Stop | stable down to 8.5 V |
| External fuse | 70 A |
| Dimensions | 220 x 150 x 45 mm |
| Warranty | 3 years |
What is in the box
- 1xMusway MINI4S amplifier
- 1xRemote level controller
- 1xOwner's manual
Add the myCON smart DSP controller for touchscreen control of volume, presets, and sources from the dash.
Installation
Three steps from factory flat to full range.
1
Connect
Run power and ground with a 70 A fuse, then connect the high-level inputs to your factory speaker wires. Auto turn-on handles the rest.
2
Mount
At 220 by 150 mm the brushed aluminum chassis fits under a seat or behind a trim panel. Class D runs cool with no fan.
3
Tune
Set the front pair high pass around 80 Hz, match gains to your source, and run the rear pair full range or bridged to a sub. Pair your phone for Bluetooth streaming.
Compare
Why not just buy any four channel?
| Feature | Factory system | Generic amp | Musway MINI4S |
|---|---|---|---|
| 120W per channel at 4 ohm | − | Varies | |
| Bluetooth streaming built in | − | − | |
| Adjustable crossovers and bass boost | − | Varies | |
| 107 dB signal to noise | − | − | |
| Plug and play with factory wiring | − | ||
| Remote level controller included | − | Varies | |
| 3 year warranty | − | Varies |
Verified reviews
Drivers who stopped settling for factory sound.
★★★★★
4.6 out of 5 from 85 verified reviews
Today's offer
MINI4S with free nationwide shipping.
Order the MINI4S on its own, or pair it with the myCON controller, Musway speakers, or a monoblock so the whole system arrives in one box.
- Free nationwide shipping on every order
- 3 year warranty registered automatically
- 30 day returns if it is not the upgrade you expected
- DSP software, manual, and wiring diagrams included with your order
Choose your kit
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Secure encrypted checkout. Ships within 24 hours from our US warehouse.
QuestionsChoose your kit
Everything you want to know before you order.
Still unsure if the MINI4S fits your vehicle? Every order includes free fitment and tuning support from the Musway USA team.
Yes. The high-level inputs with EPS accept factory speaker wire signals with auto turn-on, so the dash stays untouched.
Yes. Bluetooth streaming is built in, so you can play music from your phone straight into the amplifier.
Yes. Bridge channels 3 and 4 for 400 watts at 4 ohm and use the low pass filter and bass boost. For more bass add a ONE series monoblock.
Use a 70 A external fuse with power and ground wire sized for the amplifier, as shown in the owner's manual.
Yes. It stays stable down to 8.5 volts through engine start-stop cycles.
Return it within 30 days in its original packaging for a full refund.
MINI4S with free nationwide shipping.
Order the MINI4S on its own, or pair it with the myCON controller, Musway speakers, or a monoblock so the whole system arrives in one box.
30 day money back guarantee
MX MINI4S
$659.95
$659.95
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All reviews
Every review, straight from the driver's seat.
★★★★★
4.6 out of 5 from 85 verified reviews
