JL Audio M3-770X-S-Gm-i specifications.

7.7 Inch

90.5 dB

4 Ohm

45-25000 Hz

225 Watts

Gunmetal

70 Watts

JL Audio's marine speakers are tested in ultraviolet chambers to simulate years of sun exposure, and salt fog chambers to simulate years of exposure to salt-water environments.

The woofer cones are injection-molded, mica-filled polypropylene with UV inhibitors, synthetic rubber surrounds, and marine-grade synthetic fiber spiders.

DMA is JL Audio's proprietary method of improving dynamic motor behavior. The DMA-optimized long-excursion design enhances output, bass extension and power handling of the speaker.

The woofers use a natural roll-off and the tweeter crossovers are 12 dB/octave. The crossover also features a polyswitch solid-state tweeter protection circuit.

The baskets and grilles are UV-resistant polymer. The baskets encapsulate the woofers' motor systems to prevent corrosion.

The speakers are optimized for infinite-baffle operation so they can be installed in a variety of locations, without the need for a dedicated enclosure.

JL Audio recommends two RMS power figures for this model; 70 watts RMS continuous power handling and 20-140 recommended amplifier power. We've listed the more conservative 70 watts RMS in the specs table.

70 W

225 W

20 - 150 W / Ch.

90.5 dB @ 1 W / 1 m

4 ohms

45 Hz - 25 KHz ± 3 dB

70 watts RMS (225 watts peak power)

45-25,000 Hz

90.5 dB

6.2

7.7

3.426

15