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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
Massive Audio GT4X GT Series Class-D Full-Range 4-Channel Audiophile Amplifier 120W RMS x 4 @ 2-OhmMassive Audio GT4X Compact GT Series Class D 4 Channel Amplifier 120 W RMS 4 @ 2 75 W 4 @ 4 230 W 2 Bridged An ultra efficient 4 channel amplifier packed into a compact chassis. The GT4X delivers clean, affordable power with Massive Audios Massive Core supply, rugged cooling, and advanced protectionperfect for tight car audio installations. Key Features **Power Ratings:** 120 W 4 @ 2 ; 75 W 4 @ 4 ; 230 W 2 Bridged Efficient Class D design with Massive
Massive Audio GT4X – Compact GT Series Class-D 4-Channel Amplifier – 120 W RMS × 4 @ 2 Ω / 75 W × 4 @ 4 Ω / 230 W × 2 BridgedAn ultra-efficient 4-channel amplifier packed into a compact chassis. The GT4X delivers clean, affordable power with Massive Audio’s “Massive Core” supply, rugged cooling, and advanced protection—perfect for tight car audio installations.
Key Features
- **Power Ratings:** 120 W × 4 @ 2 Ω; 75 W × 4 @ 4 Ω; 230 W × 2 Bridged
- Efficient Class-D design with Massive Core power supply and oversized toroid
- 2 Ω stable, auto-sensing turn-on, Clip LED, and 5-way protection
- Mil-Spec multilayer PCB with SMD parts and full MOSFET switching
- Freq. Response: 10 Hz–40 kHz; Low-pass: 20–500 Hz
- THD: 0.06% @ 4 Ω; S/N Ratio: 94 dB
- Compact size: 7″ × 1.65″ × 6.9″
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
4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Nicer than I expected
Color: 12 Tennis Ball
Much more sturdy than other "squeaky" balls of this type. I love that they have an internal or covered squeaker, so I don't have to worry about my dog chewing it and swallowing a plastic squeaker. But ... what I find as a plus, my dog sees as a minus, since one of his favorite thing is to chew a ball until it stops squeaking. They come in a plastic net bag, which is very handy for storage also.
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Reviewed in the United States on March 14, 2023
★★★★★ 1
Squeaks break immediately
Color: 12 Tennis Ball
Squeaks break almost immediately, even with very light chewing. Some are so badly made that the squeaks break after one or two squeezes. Get Kong balls instead.
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Reviewed in the United States on April 1, 2026
★★★★★ 3
Nice balls but arrived with a bad chemical smell
Color: 12 Tennis Ball
Wonderful Product!!! The balls themselves are amazing and the squeaker in them my dog loves.
I am giving them only a three star because they arrived and they SMELL like chemicals so bad!!! I was afraid to give it to my dog so i washed one out and put it up hoping the chemical smell will go away. This not good for a dog as unknown chemicals can make them really sick. Whatever amazon is spraying on their stuff it's not good
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Reviewed in the United States on April 1, 2025
★★★★★ 5
Puppy tested & approved
Color: 12 Tennis Ball
I ordered these squeaky tennis balls for my cocker spaniel. She absolutely loves these tennis balls with the squeakers in them! She plays with them all day, and chews on them frequently. We have not had any problems with her, breaking the tennis balls, which is generally the issue we have with her. The tennis ball fuzz stays on the ball very well, which is usually an issue with standard tennis balls, because my dog likes to peel off the yellow fuzz on all tennis balls. She has not been able to do that with these. I will definitely be buying these again , but will not need to anytime soon as these are extremely well built.
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Reviewed in the United States on October 25, 2022
★★★★★ 5
My dogs love these things
Color: 12 Tennis Ball
My dogs love these things. I think I bought it twice now.
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Reviewed in the United States on January 15, 2026