Parasound A21 Power Amplifier – Silver

Here we have a high quality power amplifier from US company Parasound. Our example of the A21 is in good fully working condition with a few blemishes to the front panel – please see photographs. It will be professionally packaged along with mains cable, reprinted manual and our regular three month warranty.
Parasound Say….
Parasound’s mission is to put great sound into stunning packages, priced significantly lower than our competitors. The results are clear: our products win best-in-class awards in the most popular audio publications worldwide year after year. Our unique approach to designing and manufacturing comes from decades-long relationships with our trusted partners working hand in hand with our talented, in-house staff.
Halo is our premier line. Halo products have a reputation for going head-to-head with some of the most expensive reference equipment on the market while costing a fraction of the price. The sheer quantity of rave reviews and honours is unmatched and without precedent. In fact, many of Parasound’s Halo products are Stereophile Class A Recommended Components.
Features:
Circuitry designed by legendary John Curl
THX Ultra2 certified
High bias Class A/AB operation
Balanced inputs with discrete circuits and XLR connectors
Direct Coupled – no capacitors or inductors in signal path
Complementary MOSFET driver stage and JFET input stage
16 beta-matched 15 amp, 60 MHz bipolar output transistors
1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel
88,000 µF power supply filter capacitance
DC Servo and relay protection circuits
AC present, channel status, high temperature indicators
Heavy-duty 24k gold-plated 5-way speaker terminals
Gold-plated RCA input jacks; ground lift switch
Auto turn-on by 12v trigger or audio signal, 12v trigger out
4u Chassis, carry handles, rack mounting adapter included
Specifications:
Power Output: Stereo: 250 watts RMS, continuous, 20 Hz – 20 kHz, 8 Ω; Mono: 750 watts RMS, 20 Hz – 20 kHz, 8 Ω
Current Capacity: 60 amps peak per channel
Slew Rate: > 130 volts per microsecond
Frequency Response: 5 Hz – 100 kHz, +0/-3 dB at 1 watt
Total Harmonic Distortion: < 0.2 % at full power; < 0.03 % at typical listening levels
IM Distortion: < 0.04 %
Dynamic Headroom: > 1.5 dB
Inter-channel Crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz
Input Impedance: Unbalanced: 33 kΩ; Balanced: 66 kΩ
Input Sensitivity for 28.28 V Output into 8 Ω: Unbalanced: 1 V; Balanced: 1 V per leg
S/N Ratio: > 112 dB, input shorted, IHF A-weighted; > 102 dB, input shorted, unweighted
Damping Factor: > 1100 at 20 Hz
Power Requirement: Standby: 25 Watts; Full Power into 4 Ω: 1500 Watts
Dimensions: 445 (W) x 485 (D) x 194 (H) mm
Weight: 27.3 kg

To read a review from Hi-Fi News magazine please click here

For a second opinion from US publication Stereophile please click here