SKU: 7178402794

MTX Audio Thunder681 5”x7” / 6”x8” Thunder Series 90W RMS 2-Way Component Car Speaker System 4-Ohm

Sale price$112.47 Regular price$124.97
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Description

MTX Audio Thunder681 5”x7” / 6”x8” Thunder Series 90W RMS 2-Way Component Car Speaker System 4-OhmMTX Audio THUNDER681 Thunder Series 5x7" 6x8" 2 Way Component Speaker System 180W Max, 4 Ohm The MTX THUNDER681 is a premium 5x7" 6x8" component speaker system engineered to bring high fidelity sound to vehicles with oval factory speaker locations. As part of the high output THUNDER series, this system is designed to provide an expansive, full range listening experience with a particular emphasis on low frequency response. The THUNDER681 features a

MTX Audio THUNDER681 Thunder Series 5x7" / 6x8" 2-Way Component Speaker System – 180W Max, 4-Ohm

The MTX THUNDER681 is a premium 5x7" / 6x8" component speaker system engineered to bring high-fidelity sound to vehicles with oval factory speaker locations. As part of the high-output THUNDER series, this system is designed to provide an expansive, full-range listening experience with a particular emphasis on low-frequency response. The THUNDER681 features a durable polypropylene woofer with a concave cone design for improved off-axis imaging and a separate 1-3/16" (30mm) silk soft dome tweeter that can be swiveled up to 15 degrees for precise sound staging. With its external 2-way crossovers and adjustable tweeter levels, the THUNDER681 allows for a custom-tuned audio experience that delivers "Thunderous" bass and crystal-clear highs even when powered by a factory head unit.

Key Features
  • Oval High-Performance Design: Fits both 5x7" and 6x8" factory locations, providing a significant upgrade over standard coaxial speakers
  • Extended Low Frequency Reproduction: Engineered to play lower than competitive models, delivering a fuller, more robust sound profile even without an added subwoofer
  • Power Handling:
    • 90 Watts RMS Each (180 Watts per set)
    • 180 Watts Peak Each (360 Watts per set)
  • Concave Polypropylene Woofer: Lightweight and rigid cone material designed to maximize mid-bass impact and durability in automotive environments
  • 30mm Silk Soft Dome Tweeters: Deliver smooth, high-fidelity high frequencies and include multi-mount hardware (Flush or Surface) with 15-degree swivel capability
  • Precision 2-Way Crossovers: Features a dedicated crossover network with high-quality Mylar capacitors and a 2-position tweeter level adjustment (0dB or -3dB)
  • Spider Plateau Venting: A mechanical cooling process that forces air directly over the voice coil to ensure long-term reliability during high-output use
  • Flexible Installation: Includes all necessary mounting hardware and tweeter adapters to ensure a professional fit in Ford, Mazda, and other compatible vehicles
  • Frequency Response: 46Hz – 20kHz
  • Sensitivity: 92dB (2.83V/1m)
  • Mounting Depth: 2.48" (63mm)
  • Cut-out Diameter: 5" x 7.185" (127mm x 182.5mm)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7178402794

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Amazon Customer
Lowell, US
★★★★★ 1
To heavy
Color: Black, Size: X-Large
Vest is heavy and frankly very warm can’t see in what environment I’d wear it because at 40-50 I would use light down coat with sleeves I returned from t same day I reviewed it
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Reviewed in the United States on January 8, 2026
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Eric dyerly
Chelsea, US
★★★★★ 5
Golf vest
Color: Black, Size: XX-Large
Very comfortable! Well made! Looks good and great price! Wish it had pockets but other than that great
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Reviewed in the United States on May 18, 2026
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Rick J
West Palm Beach, US
★★★★★ 5
Great Vest
this golf vest is amazing. It’s very well-made. It fits well, I’m a double X and I’m 62 and a slice of pizza from 230 pounds. I just love it and plan to buy more. I believe it’s gonna wear very well, but I’ll let you all know in a month or two after I’ve worn it a couple times and washed it a couple times.
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Reviewed in the United States on March 24, 2026
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Billy D.
Massapequa, US
★★★★★ 4
As Advertised!
Product arrived promptly & well-packaged (shrink wrapped packaged & enclosed inside additional box). Golf vest was received "as advertised" & appears to be of good quality. Vest was fairly priced & is very comfy, lightweight, stylish & wrinkle resistant. Purchased as a gift for my adult son for his future golf adventures. Size/fit will need to be determined by my son when he prepares for his next golf outing. Very pleased with my purchase & will consider additional purchases from seller in the future.
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Reviewed in the United States on December 29, 2025
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Stephen Szczygiel
Omaha, US
★★★★★ 5
Hold vest
Color: Red, Size: 3X-Large
Great look & fit !
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Reviewed in the United States on March 1, 2026

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