Parasound Halo A 52+ Black 5-Channel Power Amplifier

* 180 watts RMS x 5 @ 8 Ω * 255 watts RMS x 5 @ 4 Ω * 225 watts RMS x 2 @ 8 Ω * 350 watts RMS x 2 @ 4 Ω * Class A/AB circuitry designed by legendary John Curl * Direct coupled - no capacitors or inductors in audio path ensures the cleanest signal * Balanced XLR inputs with discrete circuits * Full power is rated all the way down to 5Hz for unrestricted low-end bass * Custom 1.5 kVA encapsulated toroid power transformer with independent secondary windings for each channel * Hand-matched JFETs for input stage * Hand-matched MOSFETs for driver stage * Beta-matched 15 amp, 60 MHz bipolar output transistors (3 pairs per channel) * 100,000 µF power supply filter capacitance * DC Servo and relay protection circuits * Auto turn on by audio signal or 12V trigger * Heavy-duty 24k gold-plated, 5-way speaker terminals * 3U chassis with updated cosmetics, rack mountable with HRA3 (sold separately) * 180 watts RMS x 5 @ 8 Ω * 255 watts RMS x 5 @ 4 Ω * 225 watts RMS x 2 @ 8 Ω * 350 watts RMS x 2 @ 4 Ω * Class A/AB circui...