• Stinger PowerSports SPX700X4 4 Channel PowerSports Amplifier

    Profound Sound Ltd - Melbourne Car Audio

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Your active lifestyle shouldn’t stop you from enjoying your music. Stinger’s SPX700X4 amplifier offers amazing sound quality with the robust construction and marine safety. What makes it marine safe? The IPX-4/5 weather-resistant design means installing this into your boat, jet ski and ATV where water or moisture may be an issue is no longer a problem.


Don’t have a head unit but want to play your music?
The SPX700X4 includes a remote mountable volume control so you can adjust your music level on the fly. and you have Bluetooth playback without the need for a head unit.

Want control at your fingertips?
Check out the Install bay MTIBR65 you can have remote control of your music playback from your Bluetooth device plus AUX audio input (available separately). We highly recommend the use of the Stinger complete marine amplifier installation kit when using the SPX700X4 in marine or exposed installations.
With its marine-grade jacket, true copper cable and industry first Siamese pair dual power and ground wire in the one harness makes installation a breeze and delivers the best power support to your amplifier.

Don’t forget to check out the range of Stinger Powersports Wiring Kits and RCA leads to complete your installation.


  • 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
  • Diecast endcaps with removable mounting feet
  • Volume control with mute feature

Product Specifications

Preamp Inputs: 4 Channel

Rated Continuous (RMS) Power at 14.4V:
4 Ω – 125 W x 4 RMS
2 Ω – 175 W x 4 RMS
Bridged 4 Ω – 350 W RMS
Preamp Outputs: 2 (Link to Another Amplifier)

High and Low Pass Crossovers: 12dB per Octave
Low Pass Crossover Range: 40Hz to 400Hz
High Pass Crossover Range: 40Hz to 400Hz
Low-Level Input Range: 200 millivolts to 8 volts
High-Level Input Range: 400 millivolts to 12 volts
Lowest Recommend Load: 4 ohm Bridged or 2-ohm Stereo
Typical Efficiency: 80%
Damping Factor Greater than 200
Recommended Fuse Size: 30 amp
Power/Ground Wire Size: 8 Gauge

Weights & dimensions
Dimensions: 215mm L x 130mm W x 41mm H