Parasound HCA-1201A - Pair of great mono blocks!

These Parasound Mono-Blocks work perfectly and sound great. Highly recommended! They've seen very light use. They're being sold as a pair, and you'll find them to be excellent workhorse amps. Excellent clarity, warmth, and plenty of power!

Your Parasound HCA-1201A High Current Mono-Block Power Amplifier was built using only the finest precision components available for optimum musical quality and performance. The HCA-1201A High Current Power Amplifier has a 280 VA toroidal power transformer and 20,000 uF of filter capacitance to provide the high levels of power needed for some of today’s more sophisticated speaker systems. The inherently low output impedance of the HCA-1201A easily maintains control of your loudspeakers even during demanding impedance variations.Unique circuit topology of the direct coupled HCA-1201A includes balanced JFET input transistors, bipolar drivers and ultra high current output devices. Additionally, there are no inductors or capacitors in the signal path. These design refinements reduce high odd-order harmonic distortion, improve overall clarity and preserve low-level musical details

FEATURES

THX Ultra certified by Lucasfilm Ltd.
280 VA power transformer, 20,000 uF filter capacitance
Massive toroid power transformer
Multiple polystyrene film bypass capacitors in power supply
Can be powered with external DC source
Cascode Class A input stages with matched J-FET pairs
Complementary transistors in high voltage driver stage
12 ampere 50 MHz output transistors
Output transistors direct-coupled to speakers without LRC networks
Direct-coupled audio circuits with 0.8 Hz rolloff
High-bias Class A/AB operation
Gold-plated RCA input jacks
Multiple protection circuits
Glass epoxy circuit boards, double-sided for precision
Audiophile-grade AC power cord
SPECIFICATIONS

Continuous Power Output:
150 watts RMS, 20 Hz-20 kHz
8 Ω 240 watts RMS, 20 Hz-20 kHz, 4 Ω
Current Capacity:
36 Amps peak
Slew Rate:
> 130 V/microsecond
Power Bandwidth:
5 Hz-100 kHz, +0/-3 dB at 1 watt
Total Harmonic Distortion:
1.5 dB
Input Impedance:
33 k Ω
Input Sensitivity:
1 V for 28.28 V;
THX Reference Level; 1.2 V for full output
S/N Ratio:
> 120 dB full power
> 96 dB THX reference level
Damping Factor:
> 800 at 20 Hz
Dimensions:
6 1/4" wide x 5 1/2" high x 16" deep
Power Requirements:
110 Vac-120 Vac 360 Watts
Net Weight:
12 lb