Clarion CMM-30
A four-zone stereo with chartplotter control for well under the price of an Apollo. It suits a boat that will add amplifiers zone by zone.
Amazon $427.86$427.86
The Clarion CMM-30 is the better marine stereo overall, rated 3.6 to 3.1. The Clarion CMM-30 leads on zones and features. The Clarion CMM-30 costs $31.13 less ($427.86 vs $458.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Wet Sounds WS-MC-20
A compact two-zone Wet Sounds receiver for a wake boat with a chartplotter. Its listing publishes too few numbers to rank it high.
Amazon $458.99$458.99
Which should you buy?
- Choose the Clarion CMM-30 for zones (4 zones vs 2 zones) and features (NMEA 2000, SiriusXM-ready, weather band, Bluetooth, USB playback vs NMEA 2000, SiriusXM-ready, weather band, Bluetooth).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every dash and panel marine stereo; a clear win is highlighted. How we rank explains each one.
| Factor weight | Clarion CMM-30 | Wet Sounds WS-MC-20 |
|---|---|---|
| Overall rating | 3.6/5 | 3.1/5 |
| Amplifier power 20% | 42 25 W RMS x 4 at 4 ohm | 50 RMS power at 4 ohm not published (neutral score used) |
| Zones 15% | 100 4 zones | 33 2 zones |
| Pre-amp outputs 10% | 43 4 RCA output sets | 50 pre-amp outputs not published (neutral score used) |
| Features 25% | 70 NMEA 2000, SiriusXM-ready, weather band, Bluetooth, USB playback | 60 NMEA 2000, SiriusXM-ready, weather band, Bluetooth |
| Water rating 10% | 70 IP66 front | 50 front water rating not published (neutral score used) |
| Display 10% | 66 3 in color | 50 display not published (neutral score used) |
| Warranty 10% | 0 1-year warranty | 0 warranty not published, scored as none |
Specifications
| Clarion CMM-30 | Wet Sounds WS-MC-20 | |
|---|---|---|
| Audio | ||
| Amplifier power (RMS, 4 ohm) | 25 W x 4 RMS | - |
| Zones | 4 | 2 |
| RCA output sets | 4 | - |
| Sources and control | ||
| Bluetooth | Yes | Yes |
| USB playback | Yes | - |
| Phone app | No | No |
| SiriusXM-ready | Yes | Yes |
| NMEA 2000 | Yes | Yes |
| Wi-Fi or AirPlay 2 | No | No |
| Weather band | Yes | Yes |
| DAB+ | No | No |
| CD player | No | No |
| Camera input | No | No |
| Build | ||
| Mount | Panel cutout | - |
| Front water rating | IP66 | - |
| Display | 3 in color | - |
| Warranty | 1 year | - |