



See Options
2 Year
$219.99
3 Year
$349.99
5 Year
$689.99
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Review Summary
Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500
Browse our FAQ
50V/us
Option: 41dB, 38dB, 35dB, 32dB
0.01% (10% rated output power)
0.01% (10% rated output power)
0.01% (10% rated output power)
>80Db (less than rated power, 20Hz - 1kHz)
0.2dB (10% rated output power, 8ohm, 20Hz - 20kHz)
20k ohm (bal), 10k ohm (unbal)
5000 (8ohm, 20Hz - 200Hz)
>105-112dB (A weighted, 20Hz-20kHz)
90-260VAC, 50/60Hz
low voltage/overoad/thermal/DC output protection
8ohms Stereo: 4x1000 watts
4ohms Stereo: 4x1700 watts
2ohms Stereo: 4x2890 watts
16ohm Bridged: 2x2000 watts
8ohm Bridged: 2x3400 watts
4ohm Bridged: 2x5780 watts
19 x 1.7 x 18" (483 x 44 x 462mm)
22-26.4 lbs (10-12kg)
5060255344309
Where high-performance, power, and reliability converge, you'll find the QX4-4000 4x 1700W at 4 Ohms High Performance 1U Digital Power Amplifier. This professional-grade amplifier, part of the esteemed QX series, boasts advanced amplifier adjustment technology that ensures an impressive efficiency of over 95%. It's designed to deliver stable performance even under high current, low impedance conditions, making it a robust choice for demanding audio and video applications.
This amplifier is equipped with active power factor correction (PFC) and an ultra-reliable soft power switching power supply, capable of operating universally between 90-250VAC. This feature enhances its versatility, making it a reliable choice for a variety of professional settings, from large venues to recording studios.
Despite its powerful capabilities, the QX4-4000 maintains a compact and lightweight design. With a 1U height and weighing less than 12kg, it's easy to integrate into any setup without compromising on space or portability.
The QX series offers both 2 and 4 channel versions, with power ratings ranging from 2550 watts per channel up to a staggering 5100 watts per channel at 4 ohms. In 2 ohm operation, the flagship QX4-8000 model can supply up to 4 x 4760 watts, demonstrating the series' commitment to high performance and power.
Whether you're outfitting a line array system, setting up for a concert, or installing in a professional recording studio, the QX4-4000 4x 1700W at 4 Ohms High Performance 1U Digital Power Amplifier offers a cost-effective solution without compromising on sound quality or performance.