Stinger SPX700X4 MICRO 4 Channel 700 Watt Marine Amplifier


Compact weather-resistant amplifier delivers massive power with minimal size, extreme durability built to withstand the harsh environments you'll meet on the sea, lake, or wherever your water adventure takes you. Featuring an unregulated power supply and a weather-resistant design. Use the mute function / level control on the rear channels when you want a better sense of what's going on around you without losing all your tunes or adjust the output level of a subwoofer. Add additional amplifiers with minimal wiring thanks to the Aux output RCA’s and you can even stream Bluetooth directly to this mighty amp just by adding an iSimple ISBT23 Weather Proof BT receiver to your set-up.

  • arget Voltage: 8-16 Volts
  • 350x2 at 4 Ohm 175x4 at 2 Ohm 125x4 at 4 Ohm
  • 3CH MODE: 350x1 at 4 Ohm + 175x2 at 2 Ohm or 125x2 at 4 Ohm
  • Perfect for motorcycles, ATV, marine and mobile applications
  • Small footprint with a low profile
  • IPX-4/5 weather-resistant design
  • Full range Class D
  • Unregulated power supply
  • Aux RCA output (to link to additional amplifiers)
  • Diecast endcaps with removable mounting feet
  • Volume control with mute function (rear channels only)
  • Robust 16 gauge Marine Grade harness with quick connectors for seamless installation

RMS Power (14.4Vdc ≤1% THD):

  • 125 x 4 @ 4 ohm Stereo
  • 175 x 4 @ 2 ohm Stereo
  • 125 x 2 @ 4 ohm Stereo +
  • 350 x 1 @ 4 ohm Bridged* (Rear Channels only)

Lowest Recommended Load:

4 ohm Bridged* or 2 ohm Stereo


Frequency Response: ± 1dB from 20Hz to 20kHz

Signal to Noise Ratio: >110dB

High and Low Pass Crossovers: 12dB per Octave

Low Pass Crossover Range: 40Hz to 400Hz

High Pass Crossover Range: 40Hz to 400Hz

Input Range: 200 millivolts to 12 volts

Typical Efficiency: 80%

Damping Factor: Greater than 200

Recommended Fuse Size: 60 amp


Power/Ground Wire Size: 8 Gauge

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