The QSC RMX 2450a is a heavy duty high quality power amp ideal for small to mid-sized systems. The amp produces 750w at 4 ohms 500w at 8 ohms and 1200w at 2 ohms. For maximum output you can bridge to mono for 2450w at 4 ohms. The 2450a has been designed to be lightweight and have a small rack footprint in addition to cool running temperature. The RMXa Series amplifier combines legendary QSC reliability audio performance and affordability in a compact less than 16″ deep chassis. The RMX 2450a Two-Channel Power Amplifier is perfectly suited for performing musicians and mobile entertainers.
The 2450a features a number of tools to minimize distortion and protect speakers. This includes channel-independent clip limiters and high-current toroidal transformers. Additionally its 30/50Hz low-frequency filters block out inaudible but potentially equipment-damaging frequencies. Features Compact size – up to 2500 watts in two rack spaces or 5000 watts in three rack spaces High-current toroidal transformers for greater 2-ohm power and low noise Independent user-defeatable clip limiters reduce distortion Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom The RMX2450a operates on a standard 15 amp plug (120V) The RMX2450as particularly exceptional combination of cooling capacity and electrical efficiency provides robust thermal performance suitable for high continuous power in 2-ohm stereo or 4-ohm bridged applications. 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 for monitoring performance Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers Specifications Power per Channel Stereo Mode (both channels driven) 8Ω FTC 20 Hz-20 kHz 0.1 THD: 450W 8Ω EIA 1 kHz 0.1 THD: 500W 4Ω FTC 20 Hz-20 kHz 0.1 THD: 650W 4Ω EIA 1 kHz 0.1 THD: 750W 2Ω EIA 1 kHz 1 THD: 1200W Power Bridge-Mono Mode 8Ω FTC 20 Hz-20 kHz 0.1 THD: 1300W 8Ω EIA 1 kHz 0.1 THD: 1500W 4Ω EIA 1 kHz 1 THD: 2400W Signal to Noise (20 Hz-20 kHz): -100 dB Distortion (SMPTE-IM): < 0.02 Input Sensitivity at 8Ω: 1.23V (+4.0 dBu) Voltage Gain: 50x (34 dB) Output Circuitry: 2-Tier Class H Current Draw (120 V AC): Typical 1/8 power pink noise at 4Ω*: 6.3 A Severe 1/3 power pink noise at 4Ω*: 15.6 A AC Mains Plug: 100/120V: NEMA 5-15 230V: CEE7/7 Weight: Net: 44.5 lb (20.2 kg) / Shipping: 50.5 lb (23 kg) Distortion (typical): 20 Hz-20 kHz 10 dB below rated power: < 0.03 THD 4Ω and 8Ω 1 kHz and below full rated power: < 0.03 THD 4Ω and 8Ω Frequency Response: 20 Hz-20 kHz: +0/-1 dB -3 dB points: 5 Hz and 50 kHz (LF filter bybassed 8Ω) Damping Factor (1 kHz and below): > 300 at 8Ω Input Impedance: 10 kΩ unbalanced; 20 kΩ balanced Input Stage Clipping: 10 V rms (+22 dBu) Cooling: Continuously variable speed fan back-to-front air flow Connectors (each channel): Input: Active balanced; 3-pin Euro-style detachable terminal block and XLR (pin 2+) Output: Touch-proof binding posts; Neutrik Speakon® Controls: Front: AC switch; Channel 1 & 2 gain knobs Rear: 10-position DIP switch LED Indicators: Power on: Green; Signal: Yellow (1 per channel); Clip/Protect: Red (1 per channel) Amplifier Protection: Full short circuit open circuit thermal ultrasonic RF protection. Stable into reactive or mismatched loads Load Protection: Turn-on/off muting; AC coupling (850 1450); Triac crowbar (1850HD 2450 4050HD 5050) on each channel Dimensions: 3.5″ (8.9 cm) tall; 2 rack spaces Power Requirements: 100 120 230 V AC (factory configured) 50-60 Hz QSC PA-DJ-and-Lighting 15CW
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QSC RMX 2450a 2 Channel Power Amplifier