Parasound HALO A23+ Power Amplifier

Product Description

The Parasound A23+ brings studio-level amplification into your listening room—delivering clarity, depth, and control that defies its compact size.

Co‑designed by legendary engineer John Curl, it features a dual-mono Class A/AB architecture with independent transformers per channel. With 160 W per channel into 8 Ω (240 W into 4 Ω) and bridgeable to 500 W, along with balanced XLR and gold-plated RCA inputs, the A23+ integrates seamlessly into stereo or home theater systems.

Praised by reviewers:

• SoundStage! – “Parasound provides great value… I haven’t heard better sound or seen higher build quality at this price. An impressive power amplifier.”
• Home Theater Hi-Fi – “Solidly constructed and good‑looking amplifier… Balanced sonic characteristics with good presentation of musical details.”
• The Audio Tailor – Highlights “transparency from a sonorous 5 Hz sub-bass right through to 100 kHz,” pointing to exceptional clarity and signal purityPower Output – Stereo Mode (0.06% THD)
  160 watts x 2, 8 Ω both channels driven
  240 watts x 2, 4 Ω both channels drivenPower Output – Stereo Mode (0.9% THD)
  210 watts x 2, 8 Ω both channels driven
  300 watts x 2, 4 Ω both channels drivenPower Output – Bridged Mode (0.06% THD)
  500 watts x 1, 8 ΩPower Output – Bridged Mode (0.9% THD)
  600 watts x 1, 8 ΩFrequency Response
  5 Hz – 100 kHz, +0/-3 dB
  20 Hz – 20 kHz, +0/-0.25 dB

  Total Harmonic Distortion (THD)
  < 0.06 % at full power
  < 0.03 % at typical listening levels

  IM Distortion
  < 0.04 %

  Input Sensitivity for 28.28 V Out (8 Ω Load)

  S/N Ratio
  > 112 dB, input shorted, IHF A-weighted
  > 107 dB, input shorted, unweighted

  Damping Factor
  > 800 at 20 Hz

  DC Trigger Requirements
  +9 Vdc to +12 Vdc, 5 mA

  Audio Trigger Requirements
  2 mV – 10 mV

  Dimensions (WDH)  17-1/4″x 15″-1/4″ x 4-1/8″

  Net Weight 27 lb. /  Shipping Weight 34 lb.