QSC RMX2450a 2RU 2-Channel Power Amplifier (650W @ 4 ohms)
Get professional-quality sound without breaking the bank with the QSC RMXa Series amplifiers! The RMX2450A is a 2-rackspace powerhouse that packs a punch with its comprehensive features. Connectivity is a breeze with XLR and 1/4' balanced inputs, along with Speakon and binding post outposts. Optimize your sound with user-defeatable clip limiters and selectable low-frequency filters.
Features:
- • Professional sound for musicians, DJs, and event organizers
- • High-current toroidal transformers for low noise and great 2 ohm power
- • Independent clip limiters reduce distortion for crystal-clear sound
- • Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and boost headroom
- • Balanced 1/4' (6.3 mm) TRS, XLR, and barrier strip inputs
- • Touch-proof binding post and Neutrik Speakon outputs
- • Front-mounted gain controls for easy access
- • Signal and Clip LED indicators to monitor performance
- • Independent DC and thermal overload protection on each channel
- • 3-year warranty plus optional 3-year extended service contract
Power Handling:
- Stereo Mode (both channels driven): 450 W
- 8 ohms/ FTC 20 Hz – 20 kHz / 0.1% THD: 500 W
- 8 ohms/ EIA 1 kHz / 0.1% THD: 650 W
- 4 ohms/ FTC 20 Hz – 20 kHz / 0.1% THD: 750 W
- 4 ohms/ EIA 1 kHz / 0.1% THD: –
- 2 ohms/ FTC 20 Hz – 20 kHz / 1% THD: 1200 W
- Bridge-Mono Mode: 1300 W
- 8 ohms/ FTC 20 Hz – 20 kHz / 0.1% THD: 1500 W
- 8 ohms/ EIA 1 kHz / 0.1% THD: 2400 W
Dimensions:
- Size: 3.5' (8.9 cm) tall / 2 rack spaces
- Weight: 44.5 lb (20.2 kg)



The QSC RMX2450a is a 2-rackspace power amplifier perfect for musicians, DJs, and event organizers. It offers professional-quality sound at an affordable price. With features like XLR and 1/4' balanced inputs, Speakon and binding post outposts, user-defeatable clip limiters, and selectable low-frequency filters, it's easy to optimize your sound. The amplifier has high-current toroidal transformers for low noise and great 2 ohm power. It also has independent clip limiters to reduce distortion, selectable low-frequency filters to protect speakers and boost headroom, and front-mounted gain controls for easy access. Dimensions are 3.5' (8.9 cm) tall and 2 rack spaces, weighing 44.5 lb (20.2 kg).