GearVetted logoGearVetted
All finders A–Z

10 models to compare

Gauge or single-DIN marine stereo: what changes?

Weather rating and CDs. Five of the six BOSS gauge units state IPX5 or IPX6; none of the three single-DIN units states an IP rating.

Of the eight units that say, only the single-DIN MR762BRGB plays them. All ten have Bluetooth and USB.

Disclosure: GearVetted participates in the Amazon Associates Program and may earn commissions from qualifying purchases through product links on this site.

With no preferences selected: MGR300B is one option to compare.

No hands-on testingMethod and sources

MGR300B · first with a product link

  • Cutout diameter: 3.13 in.
  • Maker-stated IP rating: IPX5.
What to note:

Not listed by the maker: RMS power per channel.

View at BOSS Audio Systems

If you choose Single Din for mount format, the first option with a product link becomes MR500UAB.

10 models compared; 10 have a product-page link.

The picks

5 options to compare

Compare the details that matter to your setup.

An option to compare

MGR300B

Cutout diameter: 3.13 in.

Key details

  • Maker-stated IP rating: IPX5.

What to note

Not listed by the maker: RMS power per channel.

Advertised power per channel: 60 WBluetooth: YesCD playback: No
See all 8 specs
Advertised power per channel60 W
BluetoothYes
CD playbackNo
Cutout diameter3.13 in
Mount formatGauge
USBYes
Maker-stated IP ratingIPX5
RMS power per channelNot listed by the maker

7 of 8 specs available · source checked September 26, 2026 · Source ↗
BOSS Audio Systems · Product page checked September 26, 2026

View at BOSS Audio Systems
Mount format: Single Din

MR500UAB

Advertised power per channel: 50 W.

Key details

  • Bluetooth: Yes.

What to note

Not listed by the maker: cutout diameter, RMS power per channel, maker-stated IP rating.

Advertised power per channel: 50 WBluetooth: YesCD playback: No
See all 8 specs
Advertised power per channel50 W
BluetoothYes
CD playbackNo
Mount formatSingle Din
USBYes
Cutout diameterNot listed by the maker
RMS power per channelNot listed by the maker
Maker-stated IP ratingNot listed by the maker

5 of 8 specs available · source checked September 26, 2026 · Source ↗
BOSS Audio Systems · Product page checked September 26, 2026

View at BOSS Audio Systems
CD playback: Required

MR762BRGB

CD playback: Yes.

Key details

  • Mount format: Single Din.

What to note

Not listed by the maker: advertised power per channel, cutout diameter, RMS power per channel, maker-stated IP rating.

Bluetooth: YesCD playback: YesMount format: Single Din
See all 8 specs
BluetoothYes
CD playbackYes
Mount formatSingle Din
USBYes
Advertised power per channelNot listed by the maker
Cutout diameterNot listed by the maker
RMS power per channelNot listed by the maker
Maker-stated IP ratingNot listed by the maker

4 of 8 specs available · source checked September 26, 2026 · Source ↗
BOSS Audio Systems · Product page checked September 26, 2026

View at BOSS Audio Systems
Also compare 4

MGR350B

Cutout diameter: 3 in.

Key details

  • Advertised power per channel: 60 W.

What to note

Not listed by the maker: RMS power per channel.

Advertised power per channel: 60 WBluetooth: YesCD playback: No
See all 8 specs
Advertised power per channel60 W
BluetoothYes
CD playbackNo
Cutout diameter3 in
Mount formatGauge
USBYes
Maker-stated IP ratingIPX6
RMS power per channelNot listed by the maker

7 of 8 specs available · source checked September 26, 2026 · Source ↗
BOSS Audio Systems · Product page checked September 26, 2026

View at BOSS Audio Systems
Also compare 5

MGR450B

Cutout diameter: 3 in.

Key details

  • Advertised power per channel: 60 W.

What to note

Not listed by the maker: RMS power per channel.

Advertised power per channel: 60 WBluetooth: YesCD playback: No
See all 8 specs
Advertised power per channel60 W
BluetoothYes
CD playbackNo
Cutout diameter3 in
Mount formatGauge
USBYes
Maker-stated IP ratingIPX6
RMS power per channelNot listed by the maker

7 of 8 specs available · source checked September 26, 2026 · Source ↗
BOSS Audio Systems · Product page checked September 26, 2026

View at BOSS Audio Systems

Comparing MGR300B · MGR350B

Compare

Save this comparison

Compare

The facts that differ

Choose up to three models to compare side by side.

5 identical specs shown. Details that do not apply to these models are omitted.

Published specification comparison
SpecMGR300BNo preferences selected.MGR350BNo preferences selected.
Advertised power per channel60 W60 W
BluetoothYesYes
CD playbackNoNo
Cutout diameter3.13 in3 in
Mount formatGaugeGauge
USBYesYes
Maker-stated IP ratingIPX5IPX6

MGR300B

No preferences selected.

Advertised power per channel
60 W
Bluetooth
Yes
CD playback
No
Cutout diameter
3.13 in
Mount format
Gauge
USB
Yes
Maker-stated IP rating
IPX5

MGR350B

No preferences selected.

Advertised power per channel
60 W
Bluetooth
Yes
CD playback
No
Cutout diameter
3 in
Mount format
Gauge
USB
Yes
Maker-stated IP rating
IPX6

Compare all 10 models

— = no verified listing yet. The published order is independent of links.

All models and their decision specs
ProductHow it comparesKey specCompareAction
MGR300B
Compared with MGR350B: cutout diameter, 3.13 in vs 3 in.
Advertised power per channel: 60 WView at BOSS Audio Systems
MGR350B
Compared with MGV500B: cutout diameter, 3 in vs 3.13 in.
Advertised power per channel: 60 WView at BOSS Audio Systems
MGR450B
Compared with MGV500B: cutout diameter, 3 in vs 3.13 in.
Advertised power per channel: 60 WView at BOSS Audio Systems
MGV500B
Compared with MGV520B: cutout diameter, 3.13 in vs 3 in.
Advertised power per channel: 60 WView at BOSS Audio Systems
MGV520B
Compared with MGV550B: cutout diameter, 3 in vs 3.55 in.
Advertised power per channel: 60 WView at BOSS Audio Systems
MGV550B
Compared with MR500UAB: advertised power per channel, 60 W vs 50 W.
Advertised power per channel: 60 WView at BOSS Audio Systems
MR500UAB
Compared with MR762BRGB: CD playback, No vs Yes.
Advertised power per channel: 50 WView at BOSS Audio Systems
MGR300B
Compared with MGR350B: cutout diameter, 3.13 in vs 3 in.
Advertised power per channel: 60 W
View at BOSS Audio Systems
MGR350B
Compared with MGV500B: cutout diameter, 3 in vs 3.13 in.
Advertised power per channel: 60 W
View at BOSS Audio Systems
MGR450B
Compared with MGV500B: cutout diameter, 3 in vs 3.13 in.
Advertised power per channel: 60 W
View at BOSS Audio Systems
MGV500B
Compared with MGV520B: cutout diameter, 3.13 in vs 3 in.
Advertised power per channel: 60 W
View at BOSS Audio Systems
MGV520B
Compared with MGV550B: cutout diameter, 3 in vs 3.55 in.
Advertised power per channel: 60 W
View at BOSS Audio Systems
MGV550B
Compared with MR500UAB: advertised power per channel, 60 W vs 50 W.
Advertised power per channel: 60 W
View at BOSS Audio Systems
10 catalog models

How the comparison works

Your choices are compared with each model’s product details. A missing or conflicting value stays unknown and cannot satisfy a choice you select. The starting order helps you browse; it does not rate real-world performance.

Source dates appear with each link below. A source date does not confirm today's price or stock.

Finder methodologyReport a correction
Sources for all 10 models

The console opening decides which receiver can go in

BOSS Audio Systems has gauge receivers needing a 3.13 in cutout and others needing a 3.55 in cutout, alongside single-DIN receivers. Similar-looking gauge faces therefore do not imply the same opening. Measure the console opening and read the exact wiring and installation documentation before choosing a replacement.

Bluetooth and USB appear on all 10 receivers, so those features do not separate the options here. Mount format and CD playback can still differ. Water-resistance labels also need the selected unit’s installation conditions attached; a marine label is not permission to ignore wiring or exposure guidance.

Advertised amplifier power cannot stand in for RMS output

JVC’s marine digital media receiver has a 22 W per-channel RMS figure. RMS output is available for just 1 receiver in this selection, while advertised per-channel figures span 50 to 60 W. Keep those measures apart and read rating conditions before comparing amplifier output.

Maker mounting and power descriptions support this receiver comparison, with no onboard listening or electrical measurements. For the installation, verify speaker compatibility, power wiring and any amplifier connections against the exact unit’s documentation. An advertised wattage alone does not tell you the sound level or quality aboard your boat.

Before you buy

Does a gauge label tell me the hole size?

Not by itself. BOSS gives the cutout for each gauge unit: 3 in on the MGR450B, MGR350B and MGV520B, 3.13 in on the MGR300B and MGV500B, and 3.55 in on the MGV550B. No opening size is given here for the single-DIN units or the JVC, so before you cut, go by the installation manual for the hole, wiring, clearance and exposure limits. For a round dash hole, each gauge unit gives its cutout.

Are advertised watts the same as RMS watts?

The one unit that gives both shows the gap: JVC rates the KD-X38MBS at 50 W maximum per channel but 22 W per channel of full-bandwidth power at less than 1% THD. BOSS gives advertised figures only, 60 W per channel on the gauge units and the same maximum figure as JVC on two single-DIN models, so if you need an RMS figure, only the JVC gives one.

Why are some IP ratings and CD answers blank?

Where a BOSS page disagrees with itself, the answer stays unknown: the MGV500B copy claims both IPX5 and IPX6, and the MR508UABW page's title names the MR500UABW and says no CD. The JVC has no mount format or IP rating here, since no rating is carried over from its optional remote control, and it moves to Unknown details once you choose a format.