JL Audio MediaMaster 55 Stereo, MM55-HR Hidden Marine Stereo (MM55-HR)
SKU JLA-010-03372-00
- Brand
- JL Audio
- Model
- MM55-HR
- Display
- No
- Audio Zones
- 3
- Manufacturer
- Garmin
- Dimension Source
- https://static.garmin.com/pumac/MM55-HR_MAN.pdf | https://www.garmin.com/en-CA/p/1707421/pn/010-03372-00
- Hideaway Receiver
- Yes
- Product Depth (In)
- 4.96 in
Stocked items typically ship the next business day from our US warehouse. 30-day returns on unused stocked items. Exclusions apply. Return policy · Shipping policy
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About this product
JL Audio MediaMaster 55 Stereo, MM55-HR Hidden Marine Stereo (MM55-HR). This hideaway marine stereo provides three audio zones, Bluetooth and USB connectivity, and onboard amplification without an integrated display. Model: MM55-HR. Display: No. Hideaway Receiver: Yes. Built-in Amplification: Yes. Audio Zones: 3. Amplifier RMS Power at 4 Ohms: 25 W x 4. Product and installation dimensions: Product Width: 7.68 in; Product Height: 2.28 in; Product Depth: 4.96 in.
JL Audio MediaMaster 55 Stereo, MM55-HR Hidden Marine Stereo (MM55-HR).
This hideaway marine stereo provides three audio zones, Bluetooth and USB connectivity, and onboard amplification without an integrated display.
- Model: MM55-HR
- Display: No
- Hideaway Receiver: Yes
- Built-in Amplification: Yes
Product and installation dimensions
- Product Width: 7.68 in
- Product Height: 2.28 in
- Product Depth: 4.96 in
Product details
- Brand
- JL Audio
- Model
- MM55-HR
- Display
- No
- Audio Zones
- 3
- Manufacturer
- Garmin
- Dimension Source
- https://static.garmin.com/pumac/MM55-HR_MAN.pdf | https://www.garmin.com/en-CA/p/1707421/pn/010-03372-00
- Hideaway Receiver
- Yes
- Product Depth (In)
- 4.96 in
- Product Width (In)
- 7.68 in
- Product Height (In)
- 2.28 in
- Built In Amplification
- Yes
- Manufacturer Part Number
- 010-03372-00
- Amplifier RMS Power At 4 Ohms
- 25 W x 4
Shipping & returns
- Stocked items typically ship the next business day from our US warehouse.
- 30-day returns on unused stocked items. Exclusions apply. See policy
- Custom and quoted items are non-returnable once production begins.
Warranty
Backed by the original manufacturer’s warranty plus our workmanship guarantee on assembled harnesses. Contact us with your invoice and we’ll coordinate any covered repair or replacement.
Read the full warranty termsTechnical support
Need help choosing the right part?
Our marine electrical team can review your setup and recommend compatible products. Send a photo, a sketch, or your circuit list and we'll come back with a parts list that fits the boat.
Certifications & training
- ABYC-aware build practices
- OEM-grade marine wire & terminals
Additional capabilities are based on hands-on experience building marine wiring systems rather than third-party certification.
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Why buy from Common Ground Marine
- 20+ years building marine wiring harnesses, panels, and shore-power systems.
- Engineers — not a phone tree — review every custom build before parts are cut.
- OEM-grade components: tinned copper, sealed connectors, marine-rated jackets.