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Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
Parasound Halo A23+ Stereo Power Amplifier
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Parasound Halo A 23+ Stereo Power Amplifier (160 Watts)

Regular price
$1,595.00
Sale price
$1,595.00
Regular price
Sold out
Unit price
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Shipping calculated at checkout.

This item is currently set as a pre-order, expected back in stock in April.

Changes from the original A 23→A 23+

  • 125 → 160 Watts (8Ω)
  • 225 → 240 Watts (4Ω)
  • 400 → 500 Watts (bridged)
  • Filter cap: 40,000 uF →54,400 uF
  • Crosstalk (20kHz): 63dB → 70dB
  • Transformer size: 1.0 kVA → 1.1 kVA
  • Refined Halo cosmetic with aluminum end caps & gold highlights
  • Updated rear panel with heavy duty speaker terminals from HINT 6
  • Upgraded internal gold on gold audio connections
  • Updated auto turn on circuit

All Features

  • 160 watts x 2 @ 8 Ω RMS, both channels driven
  • 240 watts x 2 @ 4 Ω RMS, both channels driven
  • 500 watts x 1 @ 8 Ω, in bridged mode
  • Circuitry designed by legendary John Curl
  • High bias Class A/AB operation
  • 45 amperes peak current per channel
  • Stable with speaker impedance dips below 2 Ω
  • Balanced inputs with discrete circuits
  • Heavy-duty 24k gold-plated 5-way speaker binding posts
  • Gold-plated RCA input & loop output jacks
  • Direct-coupled signal path, no capacitors or inductors
  • DC Servo and relay protection circuits
  • AC turn-on inrush surge protection with relay bypass
  • JFET input stage, MOSFET driver stage
  • 12 beta-matched 15 ampere, 60 MHz bipolar output transistors
  • 1.1 kVA shielded toroid transformer w/ independent windings for each channel
  • Independent power supplies for input stage, driver stage and output stage
  • 54,400 µF filter capacitors for output stages
  • Full power is rated all the way down to 5Hz for unrestricted low-end bass
  • Harris hyper-fast soft-recovery bridge diode rectifiers
  • Automatic turn-on by 12 V trigger or audio sensing
  • 2 rack space chassis with rear carry handles
  • Rack mount hardware available separately
  • Available in silver or black

LowBeats (Germany) November 2020
"the Parasound P 6 and Parasound A 23+ play together in a pleasingly balanced and precise manner, while still musical with tonality that tends toward warmth. The consistently very supple reproduction and simultaneously true-to-size presentation and pin-point positioning of individual instruments and voices is amazing. Yes, this is how HiFi is fun."
  » English Translation PDF

Secrets of Home Theater & High Fidelity, November 2020
"There is a lot to like in the reasonably-priced Parasound HALO A 23+ stereo amplifier. It is stylish, packs sufficient amplification power, and delivers solid high-fidelity sonic performance."

ON-OFF  (Spain) September, 2019
"One strength is its capability to reproduce a wide sonic palette, with depth and plenty of micro information. Parasound's power amp is able to bring out the best bass from speakers. Different kinds of music made us appreciate the unusual character of this amplification. Outstanding!"

Soundstage Network  July 2019
Reviewer's Choice

"Parasound provides great value in the Halo A 23+. I haven't heard better sound or seen higher build quality at this price. An impressive power amplifier."

Stereo+ (Norway) January 2019
"Together, the Parasound P 6 and A 23+ are dynamite. Pure sonic magic with brilliant dynamics, delicious midrange and impressive resolution. To get such good sound for the price of this duo seems almost unnatural. One incredibly appealing preamp-amplifier package from Parasound."