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Stinger SPX700X4 Marine & Powersports 700W 4-Channel Class D Amplifier

  • Based on 151 reviews
Condition: New
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$249.00 Why this price?
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Availability: Only 9 left in stock, order soon!
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Arrives Tuesday, Oct 20
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Color: Silver (700W 4-Channel)


Features

  • IPX4/5 Rated Marine and Powersports Amplifier: Conformal coated PCBs, die-cast end caps with removable mounting feet, and stainless hardware reject salt, fog, and moisture intrusion for long-lasting use.
  • Compact Chassis: Built tough from corrosion-resistant aluminum with a small footprint for limited-space applications including boats, UTVs, ATVs, motorcycles, side-by-sides, and other off-road vehicles or cars (8.1 L x 4.73 W x 1.6 H).
  • Full-Range Class D: Unregulated power supply provides your open-air speakers with honest power levels up to 700W RMS. 125W x 4 @ 4 stereo, 175 x 4 @ 2 stereo, 125W x 2 @ 4 stereo + 350W x 1 @ 4 bridged.
  • Perfect for OEM Integration and Aftermarket Builds: Cut the included RCA connectors and connect to speaker wires for high-level input or connect the preamp signal cables from your head unit for low-level input.
  • Connect Additional Audio Devices: RCA output allows you to easily add another amplifier without signal loss.
  • High Pass, Flat, and Low Pass Filters: Continuously variable 12db/Octave internal crossovers (40Hz - 400Hz) ensure flexible operation. Select Flat for full range signal.
  • Included Sub Level Remote Control: Dial in your bass just the way you like it.
  • Volume Control with Mute Function: Conveniently control the volume of the amplifier and instantly mute the audio when desired.
  • Seamless Installation: Includes a robust 16GA marine-grade harness with quick connectors for fast, easy setup. Recommended fuse size: 60A.

Description

Micro 4 Channel 700 Watt power sports amplifier for motorcycles, ATV, marine and mobile applications; Compact weather-resistant amplifier delivers massive power with minimal size, extreme durability built to withstand harsh power sports applications and beyond.

Item dimensions L x W x H: 8.5 x 7.75 x 3.03 inches


Voltage: 12 volts


Manufacturer: STINGER


Maximum Supply Voltage: 12 volts


Minimum Supply Voltage: 200 Millivolts


Voltage: 12 volts


Maximum Supply Voltage: 12 volts


Minimum Supply Voltage: 200 Millivolts


Mounting Type: Through-Hole Mount


Number of Channels: 4


Output Power: 700 watts


Maximum Output Power: 125W x 4 @ 4 ohms stereo, 175 x 4 @ 2 ohms stereo, 125W x 2 @ 4 ohms stereo + 350W x 1 @ 4 ohms bridged


Item Dimensions: 8.5 x 7.75 x 3.03 inches


Material Type: Corrosion-Resistant Aluminum


Manufacturer: STINGER


Model: SPX700X4


Brand Name: STINGER


Number of Items: 1


Warranty Description: One Year Warranty


Unit Count: 1 Count


Item Highlight: Compact IPX4/5 chassis for boat, ATV, UTV or off-road car audio systems, bass boost, subwoofer level & volume control knob


Global Trade Identification Number: 38


UPC: 609098826938


Number of Packs: 1


Included Components: One Micro 4 Channel 700 Watt Powersports Amplifier


Item Type Name: SPX700X4


Item Weight: 3.5 pounds


Part Number: SPX700X4


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • BETTER THAT HARLEY AMP
Color: Silver (700W 4-Channel)
GREAT AND LOUD
Reviewed in the United States on March 4, 2026 by Marcus

  • Very powerful amp
Color: Silver (700W 4-Channel)
Works great inside the Harley batwing fairing
Reviewed in the United States on March 15, 2026 by David michaelson

  • Buy it ! buy it !
Color: Silver (700W 4-Channel)
Best amp ! Small powerful and easy to hook up. I have it running four infinity 6x9 Kapaa‘s. Super loud and clear...just the way I like it...don’t wait, just buy it. Shipping took a little while but worth the wait.
Reviewed in the United States on June 10, 2020 by Joseph

  • Works good but
Color: Silver (700W 4-Channel)
Installed it and it worked, but the Amp volume control cable could use longer threading! so now it just lays on the floor.
Reviewed in the United States on March 8, 2021 by T. Redmann

  • nice quality but cost too much
Color: Silver (700W 4-Channel)
Installed this on Street Glide, quality little amp, sounds nice when the gains are set up properly. But, the price jump this amp has taken is inexcusable.
Reviewed in the United States on January 24, 2021 by antonio s ortega

  • Great sound quality on a budget
Color: Silver (700W 4-Channel)
This is a very good amp for the budget. Easy to wire and tune. Works well for my 2009 ultra and no problems so far. Been through rough roads and rain
Reviewed in the United States on September 21, 2023 by Adam Reichert

  • That you lie
Color: Silver (700W 4-Channel)
Don't buy. Not plugs and play. You have cut and splice wires. Not worth the money. They lie to you
Reviewed in the United States on May 30, 2025 by Amazon Customer

  • Recommend
Color: Silver (700W 4-Channel)
Installed on my 09 SG. Sounds great and reasonably priced
Reviewed in the United States on September 7, 2021 by Michael W.

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