All orders are shipped from the UK. All orders placed before 12:00pm Monday to Thursday will be processed the same day.
Orders placed after 12:00pm Friday and before 12:00pm Sunday will be processed on Monday. Process time can vary depending on location of stock.
If a product is "Out Of Stock", you can still purchase on back order but there will be an average 3-4 week lead time to receive it
*All times stated are relevant to London Time*
Product Details
The JL Audio MX500/4 is a compact, full-range 4-channel Class D marine/powersports amplifier built for harsh environments, featuring an IPX7 water-resistance rating (with the control cover installed). It delivers clean, reliable power for four speakers, or can be bridged to run higher-power 2-channel setups.
Key features & specs
- Total power: 500W RMS (4-channel)
- Rated power @ 14.4V, <1% THD+N: 70W x 4 @ 4Ω; 90W x 4 @ 3Ω; 125W x 4 @ 2Ω; 250W x 2 bridged @ 4Ω
- Rated power @ 12.5V, <1% THD+N: 55W x 4 @ 4Ω; 70W x 4 @ 3Ω; 90W x 4 @ 2Ω; 180W x 2 bridged @ 4Ω
- Frequency response: 20 Hz – 20 kHz (+0, -1 dB)
- Input voltage range: 250 mV–4 V (Low) or 750 mV–15 V (High); supports RCA/preamp signals and speaker-level signals (via speaker-wire-to-RCA splice/adapter)
- Crossovers: selectable high-pass or low-pass, defeatable; 35–300 Hz, 12 dB/octave
- Channel input mode: 2 / 3 / 4-channel
- Recommended protection: 50A main fuse (not included); install within 18 in (45 cm) of the battery when this is the only device on the main feed
- Minimum power/ground wire: 4 AWG
- Dimensions (W x D x H): 9.33 x 4.50 x 1.77 in (237 x 114.5 x 45 mm)
- What’s included: amplifier, (4) stainless steel mounting screws, user manual
OEM references
- JL Audio model: MX500/4
- OEM ref: 98408
- Alt. ref: 010-03106-00
- UPC: 699440984089
Installation & compatibility notes
- Designed for 12V negative-ground electrical systems only.
- Verify speaker loads and wiring before installation (supports 2Ω operation per channel and bridged operation at 4Ω, per published power ratings).
- Confirm space, cable sizing, and fuse placement before ordering/installation.
SS - Product Addons
Select product(s) to see addons appear.
This message only appears in theme editor.You may also need
-
Largest parts catalogue in the UK
-
Secure & safe shopping
-
Best prices on the internet
-
Satisfaction Guarantee

