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White glossy four-channel waterproof car amplifier NA3-560.4

WUQ

WUQ 4-Channel Waterproof Amplifier 4x140W NA3-560.4

SKU CH-JTHA-B0BQD

Four-channel marine amplifier delivers 140 watts per channel with IPX water resistance and low-noise preamp circuitry

  • TypeAutomotive Accessories
  • Marine-grade IPX protection withstands salt spray and harsh weather
  • Four channels deliver 140 watts each for high-power audio
  • Low-noise preamplifier circuit maximises signal clarity without distortion
  • RCA inputs wired directly to the PCB for secure connections
  • White epoxy finish rejects heat to extend amplifier lifespan

4-Channel Waterproof Amplifier

The WUQ NA3-560.4 is a 4-channel waterproof amplifier rated at 4x140W. It is built for marine environments with IPX-standard water resistance and a nautical white glossy epoxy finish that helps reject heat for longer lifespan and efficient operation.

Marine audio builders

This amplifier suits boat owners and marine audio installers who need reliable power in salt-spray conditions. Buyers who want more channels or higher per-channel output should look at something else.

Straightforward wiring

RCA inputs are prewired directly to the PCB for added protection and connector covers should stay closed on unused jacks. The main installation risk is leaving RCA covers open, which can allow moisture ingress.

Highlights

  • Marine-grade IPX protection withstands salt spray and harsh weather
  • Four channels deliver 140 watts each for high-power audio
  • Low-noise preamplifier circuit maximises signal clarity without distortion
  • RCA inputs wired directly to the PCB for secure connections
  • White epoxy finish rejects heat to extend amplifier lifespan

Specifications

TypeAutomotive Accessories

Questions about this item

What source unit do I need to connect to the RCA inputs on this amplifier?

Any head unit or processor with low-level RCA outputs will feed the pre-amplifier circuit directly through the pre-wired RCA jacks.

Can I run this 4-channel amp alongside an older 2-channel amp that only has speaker-level outputs?

Yes — use the RCA inputs on this unit for its own channels and add a line-output converter on the older amp's speaker wires to feed its signal separately.

How do I confirm the amplifier is delivering clean power after installation?

Play a test tone at moderate volume and verify no audible hiss or distortion comes from the speakers while the epoxy-finished chassis stays warm but not hot.

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