Rockford Fosgate PMX-1
#5 in Gauge-holeFull review
A well-built gauge-hole receiver for a small boat or powersports rig. Its rated power is among the best of the gauge units here.
Amazon $329.99$329.99
The Rockford Fosgate PMX-1 rates 2.7 among gauge-hole marine stereos; the Clarion CMM-20 rates 2.6 among dash and panel ones. The Clarion CMM-20 costs $123.22 less ($206.77 vs $329.99).
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.
Clarion CMM-20
#13 in Dash and panelFull review
A solid two-zone stereo around $200 for a boat that powers its speakers from the head unit. Step up to the CMM-30 for color, SiriusXM and NMEA 2000.
Amazon $206.77$206.77
Scores side by side
These two sit in different mount classes (gauge-hole and dash and panel), and each is scored against the reference points for its own class, so a rating says how well each does among its own mount peers. How we rank explains each factor.
| Factor weight | Rockford Fosgate PMX-1 | Clarion CMM-20 |
|---|---|---|
| Overall rating | 2.7/5 | 2.6/5 |
| Amplifier power 20% | 42 25 W RMS x 4 at 4 ohm | 42 25 W RMS x 4 at 4 ohm |
| Zones 15% | 0 single zone | 33 2 zones |
| Pre-amp outputs 10% | 14 2 RCA output sets at 2 V | 14 2 RCA output sets |
| Features 25% | 50 phone app, weather band, Bluetooth, USB playback | 35 weather band, Bluetooth, USB playback |
| Water rating 10% | 70 IPX6 front | 70 IP66 front |
| Display 10% | 8 2.3 in monochrome | 10 2.4 in monochrome |
| Warranty 10% | 50 2-year warranty | 0 1-year warranty |
Specifications
| Rockford Fosgate PMX-1 | Clarion CMM-20 | |
|---|---|---|
| Audio | ||
| Amplifier power (RMS, 4 ohm) | 25 W x 4 RMS | 25 W x 4 RMS |
| Zones | 1 | 2 |
| RCA output sets | 2 at 2 V | 2 |
| Sources and control | ||
| Bluetooth | Yes | Yes |
| USB playback | Yes | Yes |
| Phone app | Yes | No |
| SiriusXM-ready | No | No |
| NMEA 2000 | No | No |
| Wi-Fi or AirPlay 2 | No | No |
| Weather band | Yes | Yes |
| DAB+ | No | No |
| CD player | No | No |
| Camera input | No | No |
| Build | ||
| Mount | Gauge hole | Panel cutout |
| Front water rating | IPX6 | IP66 |
| Display | 2.3 in monochrome | 2.4 in monochrome |
| Warranty | 2 years | 1 year |