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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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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-OhmThe 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:
- 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
4.3 ★★★★★
Based on 2170 reviews
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Product Reviews
★★★★★ 5
I absolutely love the Saltair line of products!
Scent: Sandalwood
I used the body wash at a friend's house and fell in love, especially with the Santal Bloom scent! This body oil is just so amazing and feels so silky and soft. It's especially effective if you use it right out of the shower. It adds a beautiful glow and I even use a little in my hair. It's quite concentrated so a little goes a long way. I have even mixed it into my favorite coconut oil and it mixes beautifully. Don't sleep on this line!
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Reviewed in the United States on February 1, 2026
★★★★★ 5
Smells great
Scent: Golden Hour
Love this, my favorite scent from this line. Very subtle glitter so I still feel age appropriate. It’s an oil soy skin does feel oily for a little bit afterwards until it soaks in. It has lasted me quite awhile so I do feel it’s good value for the money. Have reordered a few times.
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Reviewed in the United States on April 6, 2026
★★★★★ 4
Great Glow and Scent, But Fades Quickly and Runs Out Fast
Scent: Vanilla
The Saltair Shimmering Body Oil in Salt Water Vanilla is a beautiful product.
The only 3 reasons I don’t give it 5 stars are because:
1. The shimmer is not very long-lasting. When I apply it before bed, most of the shimmer effect is completely gone and absorbed by my sheets by the morning. I assume pants and leggings would absorb it in the same way, but I’ve only ever worn shorts after applications during the day, and even then, the shimmer seems to fade after 4–6 hours.
2. I have to apply a lot of oil to achieve the amount of shimmer I desire. It averages about 20–25 pumps per use.
3. The 4-ounce bottle size, combined with needing a lot of product for each application, means I’m going to run out of it pretty quickly.
Here’s why I like this product:
1. The glow: If you’re looking for a subtle glow and a light shimmer effect, this oil is perfect for you; apply it before a night out, while wearing a swimsuit, or when going to the gym in your favorite workout set for a beautiful gleam.
2. The scent: It’s a divine, warm mix of sweet and spicy notes. It smells like vanilla, amber, and toasted marshmallow. It pairs really nicely with tropical, woodsy, sweet, or spicy perfumes—it’s very versatile.
3. Consistency and absorption: The oil absorbs nicely and has a light, runny consistency. Because it’s a dry oil, it isn’t too thick, nor does it leave a sticky feeling on the skin.
4. How my skin feels: I’ve used this oil 4 nights in a row, and every single morning I wake up, my skin feels so soft and smooth, with no residual stickiness or residue left behind.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Saltair shimmer
Scent: Sandalwood
Nice on the body. Easy to apply. I use it with my lotion for an all over glowy shimmer. It will be very nice in the summer. Nice scent, no irritation.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Buy it you won’t be disappointed
Scent: Sandalwood
I love it already and I haven’t applied it directly to my full body after a shower as instructed but from what I did apply it’s whatever it says it is . It eats down ok, skin softness, moisturizing , the shimmer is just enough , the scent is soft and smells incredibly great. Smells like a fresh shower lol it’s not thick consistency at all and just the right amount of oiliness to add shine to the body. I can’t wait to use this product fully .
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Reviewed in the United States on July 16, 2025
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