QSC

QSC RMX850A Power Amplifier 300W Per Channel

300WXLR

Reliable Power for Professional Audio The QSC RMX850a Power Amplifier delivers robust and dependable power for a wide range of audio applications. Designed for performance and durability, this amplifier ensures your sound is always clear and impactful. Brand: QSC Model: QSC RMX850A ...

$449.00*
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*Price sourced from Amazon.com. Last updated:Oct 23, 2026.Price and availability are subject to change — details.

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Overview

Reliable Power for Professional Audio

The QSC RMX850a Power Amplifier delivers robust and dependable power for a wide range of audio applications. Designed for performance and durability, this amplifier ensures your sound is always clear and impactful.

  • Brand: QSC
  • Model: QSC RMX850A
  • Power: 300 Watts per Channel @ 4 Ohms
  • Channels: 2
  • Inputs: Balanced 1/4" and XLR
  • Outputs: Neutrik Speakon and Binding Post
  • Mounting Type: Surface Mount
  • Dimensions: 24 x 22 x 6 inches
  • Weight: 35 pounds

Key Features

Compact size

1/4" (6.3mm) TRS, XLR and barrier strip balance inputs

Binding post and Neutrik Speakon outputs

Front mounted gain controls for easy access

Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom

Specifications

Power Output
300W Per Channel
Input Connectors
1/4" (6.3mm) TRS, XLR, Barrier Strip
Output Connectors
Binding Post, Neutrik Speakon
Gain Controls
Front Mounted
Low-Frequency Filters
30 Hz or 50 Hz Selectable

Frequently Asked Questions

The QSC RMX850A Power Amplifier supports balanced inputs via 1/4" (6.3mm) TRS, XLR, and barrier strip connectors, offering flexibility for various professional audio setups.
Yes, the gain controls on the QSC RMX850A Power Amplifier are conveniently front-mounted, ensuring easy access for adjustments during live sound or studio applications.
This amplifier includes selectable low-frequency filters at either 30 Hz or 50 Hz, designed to protect your speakers from damaging low-end frequencies and increase overall headroom.
The RMX850A power amplifier features both binding post and Neutrik Speakon outputs, providing secure and reliable connections for a variety of speaker cables and configurations.
Yes, the RMX850A Power Amplifier is noted for its compact size, which is beneficial for integration into racks or setups where space efficiency is a priority.