Parasound A21+ Power Amplifier

Further Information: Today we have a truly excellent secondhand Parasound Halo A 21+ Stereo Amplifier in outstanding pre-owned condition. As the current model, its typically retailing for a substantial $6,995, but we're unlocking the doors to this unit for just $3,500 + freight to your doorstep! The Parasound Halo A 21+ is a testament to stellar craftsmanship, superior audio design, and a tangible incarnation of acoustic excellence. With its high-quality chassis, thoughtful circuit design, and unparalleled sound quality, it represents an outstanding value in its class at this price point.

Key Features:

Power Output: Robust 300 watts x 2 (@ 8 Ω RMS), and 500 watts x 2 (@ 4 Ω RMS). Bridged mode offers a massive 1000 watts x 1 (@ 8 Ω).

Pioneering Circuitry Design by the legendary John Curl ensures impeccable audio fidelity.

Operational Class: High bias Class A/AB operation with a peak current of 60 amperes per channel.

Durability: Sturdily built, stable even with speaker impedance dropping to 1.5 Ω.

Connectivity: Equipped with balanced inputs, discrete circuits, and gold-plated RCA input & loop output jacks.

Exclusive CHK Infinium: Custom 5-way speaker binding posts.
Read more on the Parasound A21+ Power Amplifier here
Key Specs: 

Power Output – Stereo Mode (0.1% THD) 300 watts x 2, 8 Ω both channels driven / 500 watts x 2, 4 Ω both channels driven

Power Output – Bridged Mode (0.1% THD) / 1000 watts x 1, 8 Ω
Power measurement are at 120 VAC: 0.1% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)

Current Capacity 60 amps peak, per channel

Slew Rate > 130 volts per microsecond

Frequency Response - 5 Hz - 100 kHz, +0/-3 dB -20 Hz - 20 kHz, +0/-0.25 dB

Total Harmonic Distortion (THD) < 0.1 % at full power < 0.03 % at typical listening levels

IM Distortion < 0.04 %

Input Impedance - Unbalanced: 33 kΩ - Balanced: 66 kΩ,(33 kΩ per leg)

Total Gain - 29 dB

Input Sensitivity for 28.28 V Output into 8 Ω

S/N Ratio - > 115 dB, input shorted, IHF A-weighted > 110 dB, input shorted, unweighted

Dimensions:  448 mmW  x 197 mmH x 508 mmD

Net Weight: 32.2 kg