Shipping Estimate
USA
- USA
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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Massive Audio GTR64 6.5” GTR Series 400W RMS | 600W Max Car Subwoofer Dual 4-Ohm w/ GrillMassive Audio GTR64 6. 5 GTR Series Subwoofer 400 W RMS 600 W Peak Dual 4 (1. 5 Hi Temp Voice Coil) Compact yet powerful, the GTR64 delivers clean, impactful bass in tight spaces. Built with a dual 4 high temp coil, strong motor assembly, and reinforced cone and basket, it's engineered for durable, punchy performance. Key Features Power Handling (RMS): 400 W Peak Power: 600 W 1. 5 dual 4 high temperature voice coils (Made in the USA) Heavy gauge steel
Massive Audio GTR64 – 6.5″ GTR Series Subwoofer – 400 W RMS / 600 W Peak – Dual 4 Ω (1.5″ Hi-Temp Voice Coil)Compact yet powerful, the GTR64 delivers clean, impactful bass in tight spaces. Built with a dual 4 Ω high-temp coil, strong motor assembly, and reinforced cone and basket, it's engineered for durable, punchy performance.
Key Features
- Power Handling (RMS): 400 W
- Peak Power: 600 W
- 1.5″ dual 4 Ω high-temperature voice coils (Made in the USA)
- Heavy-gauge steel basket with industrial-textured finish
- Dual-stacked Y30 65 oz strontium ferrite magnet
- Textured pulp cone with resin reinforcement and red-stitch surround
- Custom high-roll foam surround with MASSIVE logo
- Reinforced terminal case with copper wiring and woven tinsel leads
- X-Max: ~10 mm; Sensitivity: ~79.5 dB; Fs: ~55.8 Hz
- Enclosure recommendations: sealed ~0.35 ft³; ported 7.9″H × 15″D × 8.7″W (1.5″ × 8″ port)
- Mounting depth: ~5.43″; Cutout: ~5.79″; Weight: ~11 lb
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
4.5 ★★★★★
Based on 461 reviews
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Product Reviews
★★★★★ 5
Good for support
Best pillow for mom to keep spine in line helps with pain.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Firm n cool
I am super picky about pillows and I need them firm and cool. This is absolutely amazing. Love it! Better than more expensive pillows I've gotten in the past.
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Reviewed in the United States on December 25, 2025
★★★★★ 5
Great pillow
Love it after I adjusted fluffiness. Pain no more
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Perfect pillow
Size: Queen Size(2 Pack)
It’s a beautiful soft Material, way better than any pillow I’ve ever owned. It’s cool to the touch and remains fluffy and durable. I’ve had it over a month and still love it just as much as day one! The neck support is also very much appreciated! The size is perfect for my pillow cases. All in all a durable, soft Material, comfort pillow! Will buy again!
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Soft, feel cool, Arrived vacuumed package. Put in dryer on cool for 3 Minutes, Fluffed right up!!!
Size: Queen Size(2 Pack)
These pillows arrive air tight, once you open the expand very slowly. I put them in the dryer on cool for about 3 or 4 minutes and they fluffed right up!!! They arrived yesterday evening, I have not used them yet, I will need to remove some of the shredded Memory Foam as it is way to much for me. I will update after a night or two. they are soft to touch and feel cooler if you leave your hand on a for little bit. I'm excited to try them out. Hoping and praying they work for bad necks, backs and shoulders, seems to be Nice quality.
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Reviewed in the United States on March 25, 2026
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