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 3.3. The Clarion CMM-30 leads on zones. The Fusion MS-RA210 wins on water rating. The Fusion MS-RA210 costs $27.87 less ($399.99 vs $427.86).
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.
Fusion MS-RA210
The Fusion that covers most boats: color screen, USB, SiriusXM and chartplotter control in the standard Fusion cutout. It fits owners who want those features without paying Apollo prices.
Amazon $399.99$399.99
Which should you buy?
- Choose the Clarion CMM-30 for zones (4 zones vs 2 zones).
- Choose the Fusion MS-RA210 for water rating (IPX6/IPX7 front vs IP66 front).
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 | Fusion MS-RA210 |
|---|---|---|
| Overall rating | 3.6/5 | 3.3/5 |
| Amplifier power 20% | 42 25 W RMS x 4 at 4 ohm | 46 26 W RMS x 4 at 4 ohm |
| Zones 15% | 100 4 zones | 33 2 zones |
| Pre-amp outputs 10% | 43 4 RCA output sets | 43 4 RCA output sets |
| Features 25% | 70 NMEA 2000, SiriusXM-ready, weather band, Bluetooth, USB playback | 70 NMEA 2000, SiriusXM-ready, phone app, Bluetooth, USB playback |
| Water rating 10% | 70 IP66 front | 100 IPX6/IPX7 front |
| Display 10% | 66 3 in color | 58 2.7 in color |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Clarion CMM-30 | Fusion MS-RA210 | |
|---|---|---|
| Audio | ||
| Amplifier power (RMS, 4 ohm) | 25 W x 4 RMS | 26 W x 4 RMS |
| Zones | 4 | 2 |
| RCA output sets | 4 | 4 |
| Sources and control | ||
| Bluetooth | Yes | Yes |
| USB playback | Yes | Yes |
| Phone app | No | Yes |
| SiriusXM-ready | Yes | Yes |
| NMEA 2000 | Yes | Yes |
| Wi-Fi or AirPlay 2 | No | No |
| Weather band | Yes | No |
| DAB+ | No | Yes |
| CD player | No | No |
| Camera input | No | No |
| Build | ||
| Mount | Panel cutout | Panel cutout |
| Front water rating | IP66 | IPX6/IPX7 |
| Display | 3 in color | 2.7 in color |
| Warranty | 1 year | 1 year |