Studiomaster QX4-4000 - 4x1700W Power Amplifier

Studiomaster QX4-4000 - 4x1700W Power Amplifier

Marsoni

M251S

$1140.49

Get it in 3 business days with 1 day shipping. Friday, May 29

Studiomaster QX4-4000 - 4x1700W Power AmplifierThe QX series of digital power amplifiers feature advanced amplifier adjustment technology to give over 95% efficiency, and stable performance at high current, low impedance conditions. Additional features include active power factor correction (PFC) and ultra reliable soft power switching power supply which will operate universally between 90 250VAC. The QX series are all 1U height, lightweight designs, weighing less than 12kg. Both 2 and 4 channel

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A lot smaller than I was expecting.. BUT my dog doesn’t mind at all. She seriously loves this thing. It goes flat fairly quickly, but that’s what happens with all of her soccer balls, no matter the size. She’s a pitbul catahoula mix and has a strong bite. Considering my dogs chewing abilities, I’m fairly impressed by the durability of the ball, though she chewed through all but one of the rope handles in about 2 seconds. All that said, it’s one of her favorite toys(she’s 13 years old)

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Reviewed in the United States on April 21, 2026

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blake r.

Grantham, US

★★★★★ 5

10/10

Size: Medium(6")

My dog loves this ball. Durable and the straps seem to be strong too. Would highly recommend

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Reviewed in the United States on May 27, 2026

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Phyllis H. Schmidbauer

Los Angeles, US

★★★★★ 5

Durable!!

Size: Medium(6")

So well made for the active dog!! Colorful, durable and good quality!!

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Reviewed in the United States on April 26, 2026

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Ian Servis

Birmingham, US

★★★★★ 5

Keeps the puppy entertained for hours

Size: X-Large(8")

My dog loves this. I've had to buy two because my dog destroyed the first one but there's only so much you can do with a 5 month old german shepard.

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Reviewed in the United States on May 8, 2026