Estimated price (community-sourced)
Around — community and catalog average, updates slowly
About the A21+
The Parasound Halo A21+ is an upgraded version of the original A21, featuring increased power output, larger power supply with 1.3 kVA toroidal transformer and 108,000 µF filter capacitance, lower distortion, improved channel separation, and premium components like gold-on-gold connections and JC 5 speaker terminals. It provides massive clean power with 60 amps peak current per channel, stability down to 1.5 ohm loads, and high bias Class A/AB operation for exceptional musicality and dynamics. Balanced and unbalanced inputs, bridged mono capability up to 1000W, and advanced protection circuits ensure reliability. Still actively listed on Parasound's site and retailers.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 300W @ 8Ω
- Power @ 4Ω
- 500W @ 4Ω
- Amplifier Class
- AB
- Damping Factor
- >1000
- Minimum Impedance
- 1.5Ω
- Input Sensitivity
- 1.0V RMS
- Input Impedance
- 33Ω
Analog Output
Analog signal output specifications
- THD
- 0.100%
- SNR
- 115 dB
Connectivity
Input and output connections
- Digital Inputs
- Stereo RCA, Stereo XLR balanced, DC Trigger (+9-12Vdc, 5mA), Audio sensing (2-10mV)
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 448 × 191 × 546 mm (W × H × D)
- Weight
- 32.2 kg (71 lbs)
Key Specifications
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions