Here are the specifications for Nady spa power amps. Do they look good? MF has them for a very good price (300$ for 1400w) How would they compare to QSC RMX amps? thanks 11 SPA SERIES SPECIFICATIONS POWER SPECIFICATIONS SPA 850 SPA 1400 SPA 2400 2. 425 800 1400 EIA out power 4. 350 + 350 500 + 500 750 + 750 1Hz, THD maximum 1% 8. 200 + 200 300 + 300 500 + 500 Both channels Bridged 8. 600 1000 1600W 4. 850 1400 2400 ELECTRICAL SPECIFICATIONS SPA 850 SPA 1400 SPA 2400 INPUT SENSITIVITY 1.15V (+3.4dBU) 1.15V (+3.4dBU) 1.15V (+4dBU) INPUT IMPEDANCE 10K. Unbalanced & Balanced FREQUENCY RESPONSE 25Hz~25KHz +0/-1dB (at 10dB below rated output power -3dB points: 5Hz~50KHz VOLTAGE GAIN 30dB 32dB 34dB DISTORTION (SMPTE-1M) <0.03% <0.03% <0.03% S/N ratio 100dB 100dB 100dB GENERAL SPECIFICATIONS SPA 850 SPA 1400 SPA 2400 Full short circuit, open circuit, thermal, ultrasonic, and RF protection; stable into reactive or mismatched loads; ON/OFF muting; current limiter (crowbar) Front: Power switch, 40 detent input level control for each channel. Rear: Parallel/Mono/Bridge selector, 30Hz filter selector, clip ON/OFF selector, ground lift switch, AC voltage selector switch, AC breaker SIGNAL: 2 x green LED CLIP: 2 x red LED POWER: 1 green LED POWER: IEC power cord jack INPUT: Active balanced XLR and 1/4 (6.3mm) TRS OUTPUT: Touch-proof binding posts SPEAKON Connectors POWER SUPPLY Voltage selectable: 110-120V or 220~240V AC 50/60Hz 11A 15A 20A 10A/250V, 3AG, 12A/250V, 3AG, 25A/250V, 3AG, Fast Blow (x 2) Fast Blow (x 2) Fast Blow (x 2) DIMENSIONS 19.0 x 15.7 x 3.5 (483 x 400 x 88.8mm) WEIGHT 29.9lb (13.6Kg) 34.3lb (15.6Kg) 41.8lb (19Kg) CONTROLS INDICATORS CONNECTORS PROTECTIONS FUSES AC Primary Rear Panel Breakers AC Secondary Internal Fuses The specifications above are correct at the time of printing of this manual. For improvement purposes, all specifications for this unit, including design and appearance, are subject to change without prior notice.