- 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
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Description
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
Vintage HCA1201A
Features
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:
< 0.03 % at full power
< 0.01 % typical levels - IM Distortion:
< 0.03 % - TIM:
Unmeasureable - Dynamic Headroom:
> 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
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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