QSC RMX2450a Demo

2-channel Power Amplifier, 650W Continuous/ch at 4 ohms with thermal overload protection, compact 16" deep chassis, flexible I/O
QSC RMX2450a image 1
QSC RMX2450a image 1
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This item has been tested and performs to factory specifications. This item has been opened, unbundled, and used. There are some light signs of use but overall the unit is in good condition. Packaged in original packaging with all accessories.

This item was thoroughly inspected by our factory-authorized service team and is backed by Sweetwater's exclusive 2-year warranty. The images shown do not necessarily represent the condition of this particular item.

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A Clean, Reliable Power Amp!

You can count on the QSC RMX2450a when you need a reliable, tour-quality power amplifier. The sound is clear and powerful, with flexible options to help you fine-tune your sound system. The RMX2450a lets you choose between 30Hz and 50Hz low-cut filters to optimize your sound, plus a defeatable clipping limiter to protect your speakers against signal spikes. And with both XLR and 1/4" balanced inputs, this power amp is ready to integrate into virtually any sound system. For awesome sound that you can count on for years, call Sweetwater for the QSC RMX2450a power amplifier.

QSC RMX2450a Power Amplifier at a Glance:
  • Compact chassis leaves more room in your rack
  • Quality connections for reliable performance
  • Optimize your sound with a switchable low-cut filter
Compact chassis leaves more room in your rack

Rack space counts, especially when you're touring the country with tons of equipment. The QSC RMX2450a packs a ton of power into a chassis that's less than 16" deep, which gives you more room to make connections and manage your rack equipment.

Quality connections for reliable performance

The QSC RMX2450a power amplifier has both XLR and 1/4" balanced inputs, plus vinding post and speakON outputs for maximum convenience. Whether you're playing at the local club or managing a large-scale stage production, it's easy to integrate the QSC RMX2450a into virtually any system that requires powerful, transparent audio performance.

Optimize your sound with a switchable low-cut filter

There's a low-cut filter on the QSC RMX2450a, to help protect your speakers and also help you maintain more headroom. Set it at 30Hz if you're using the RMX2450a to power a subwoofer, giving you powerful low-frequency response while filtering out sub-sonics that eat up your headroom. Set it to 50Hz if you're powering main speakers, giving you even more headroom for clear, dynamic, full-range sound while maintaining powerful low-end presence.

QSC RMX2450a Power Amplifier Features:
  • Stereo or bridged-mono power amplifier
  • Compact chassis is less than 16" deep, leaving you more space in the back of your rack
  • Flexible I/O with XLR and 1/4" balanced inputs, plus binding posts and speakON outputs
  • Front-mounted gain controls give you fast, easy access to your signal levels
  • Switchable 30Hz/50Hz low-cut filter lets you fine-tune your system for maximum headroom
  • Signal and Clip LED indicators let you monitor performance at a glance
  • Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers
  • Defeatable clipping limiter protects speakers against signal spikes
For Proven reliability and great sound, choose the QSC RMX2450a!

What Makes a Product a "Demo"?

At Sweetwater, "Demo" usually means one of the following:

  • It spent some time on display in our store.
  • It was used in a sales training presentation.
  • It was returned by another customer who tried it out for a few days.

Every demo item we sell is certified to be in perfect working order and backed by Sweetwater's 2-year Total Confidence Coverage warranty. Demos are thoroughly inspected by our Factory-Authorized technicians, and you will find their detailed condition notes on the product page. If you have any questions, please call us at (800) 222-4700.

Additional Media

Power Amp Buying Guide

Tech Specs

Number of Channels 2
Power Class Class H
Watts/Side @ 8 ohms 450W
Watts/Side @ 4 ohms 650W
Watts/Side @ 2 ohms 1200W
Watts Bridged 2400W @ 4 ohms
Inputs 2 x XLR, 2 x TRS
Outputs 2 x SpeakON, 2 x Binding Posts
Cooling System Continuously variable-speed fan, rear-to-front air flow
Filters Yes
Rack Spaces 2U
Height 3.5"
Depth 15.9"
Width 9"
Weight 44.5 lbs.
Manufacturer Part Number RMX2450A

Customer Reviews

Based on 4 reviews
Write your review

Just keep on ticking & sound great

I was tired of taking our mackies in to be repaired so we purchased a RMX2450 to see how it would hold up for our church. After one year we purchased another and, Lord willing will purchase two more by the end of the year. Great amp.
Music background: Worship Leader

great amp

this amp is great. it has a sound that is like the crest ca-9. in over words it rumbles bass bins unlike yorkville amps. i use this amp with eaw 153z 3 way cabnet.
Music background: house

Can't go wrong with QSC!

I've got an amp rack full of these things, and they are easily described as pure power. I use a 2450 to power my dual 15" sub cabinets, and they sound fantastic. The price is more than right, and you'll be wow'd too! Contact your Sweetwater rep to grab one (or two)!
Music background: Live Sound Engineer, A\V Installer

RMX 2450

have been using this amp for 3 years and it has been very good, I use it with 2 crown 1000's and it keeps up with them no problem.

Sweetwater Advice

Mark Thompson

I have run PA rigs for years with QSC amps with no problems or breakdowns EVER. You can rely on them for your show with confidence.
See also: Power Amps, QSC, QSC Power Amplifiers