Parasound’s new Halo A 23+ power amplifier is the new successor to the highly regarded A23.

This new incarnation of Parasound's endeavour to learn, improve and upgrade performance for the HALO range is a testament to the dedication they have done historically with all products. The goal is always to enhance where necessary and to improve the things that really matter at the critical levels, and that is always coupled with ensuring that the customer actually enjoys all the benefit!

Richard Schram, John Curl and the Parasound team's continuous development of their exemplary product line, naturally led them to learn from the new HINT 6 in many respects in order to upgrade the A23 suitably to partner with the new and improved P6 Pre-amplifier (arguably the A23+'s fellow in audio partnership), and as such they have clearly outlined below some of the key enhancements and new features of the A23+

New Features (Changes from the original A23):

Power up from 125 → 160 Watts (8Ω)

Power up from 225 → 240 Watts (4Ω)

Power up from 400 → 500 Watts (bridged)

Improved Filter capacitance: 40,000 uF →54,400 uF

Improved Crosstalk performance (20kHz): 63dB → 70dB

Increased Transformer size: 1.0 kVA → 1.1 kVA

Refined Halo cosmetic with aluminium 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

Parasound’s new Halo A 23+ Amplifier with these latest embellishments is now a modern classic, with it's high current Class A/AB amplification, smooth sounding MOSFET drivers, and balanced XLR inputs, this mighty amp will make any speaker sound better than ever before.

The new A23+ two channel amplifier now boasts 160 watts of power per channel into an 8 ohm load, and even 225 watts per channel into a 4 ohm load. It can of course be used effectively as a 'mono-block' in bridged mode as well meaning that you can get up to a very dexterous 500 watts into an 8ohm load for those of you requiring huge power into larger more challenging loads or larger spaces.

As you would expect the build quality and components used in the A23+ are like all of Parasound's range - are very high quality. Internally the new A23+ has upgraded internal gold on gold audio connections (cleaner signal path and more reliable.), a new larger main power transformer (10-15% larger), tweaked input circuits for improved crosstalk specs and in conjunction with the larger transformer - an improved power supply for lower distortion at full power. Even the audio trigger circuit has been updated for better control and sensitivity...

Externally in terms of upgrades on the visuals - the revised A23+ now has the slim metal end caps (replacing the wider plastic end caps), added gold metallic accent stripe along end cap, an engraved metal PARASOUND badge replaces the red P and gold feet now adorn the black units. In addition, the revised rear panel layout and features upgraded speaker terminals (A23+ gets the same new HINT 6 terminals.), a new jack/terminal layout with more space and more clear text/labels and the 2.5mm trigger jacks replaced with more 'standardised' 3.5mm jacks.

These upgrades are 'real-world' updates, not just an attempt to 'rebadge' the A23 - these are small but plentiful improvements that when combined together with the deftness and dedication Parasound are famous for make a BIG difference.

The new and improved Parasound Halo A23+ is available in black and silver finishes.

Parasound Halo A23+ Two Channel Amplifier Features & Benefits:

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