QSC PLX1104 Power Amplifier
Item: QSPLX1104
The PLX2 series is a range of premium quality, high-power amplifiers designed for the most demanding live performance uses. Built on the third generation of QSC PowerLight® technology, PLX2 amplifiers combine light weight, superlative audio quality and proven QSC reliability. PLX2 amplifiers are capable of providing plenty of clean, undistorted output to the most power hungry speaker systems.
PowerLight switchmode technology replaces a large, heavy AC transformer (typically 20 lbs. / 9 kg) with a highly efficient and lighter-weight active design. Conventional AC transformers provide 100 or 120 energy pulses per second, the PowerLight supply delivers 190,000 to 230,000 pulses per second. More pulses make it easier to provide on-demand power for the amplifier's output section. The power supply doesn't "sag" so bass notes stay full and powerful while the high end remains crisp and clean.
PLX2 audio power circuitry achieves performance normally associated with studio reference amplifiers. In order to reduce crossover distortion, precision bias tracking makes minute adjustments as amplifier temperature changes. The benefit is cleaner high-frequency and more consistent sound no matter how hard the amplifier is driven. The higher power models use QSC-exclusive class H output circuitry, a form of audio "turbocharging" that increases maximum power without affecting the basic audio quality.
Specifications:
- Output, Stereo Mode (Both Channels Driven):
8 ohms:
(FTC 20 Hz - 20 kHz, 0.1% THD): 310 W
(EIA 1 kHz, 0.1% THD): 325 W
4 ohms:
(FTC 20 Hz - 20 kHz, 0.1% THD): 500 W
(EIA 1 kHz, 0.1% THD): 550 W
- Signal to Noise, 20 Hz-20 kHz: -106 dB
- Distortion (SMPTE-IM): Less than 0.02%
- Damping Factor: Greater than 200
- Weight: 13 lbs (5.9 kg)