“Parasound's A23 is truly a great amplifier pretty of clean power capable of driving most any loudspeaker. Build quality is is very good making this an outstanding buy if you are in need of a new power amp.”
“My 35+ year old power amp lost a channel so I decided to look for a replacement that would provide similar reproduction characteristics with vinyl, tape and CD (warm feeling, well balanced with clearly defined high-mid and low frequency output) and would be compatible with my custom built monitors. This Halo 23 amp has more than met my expectations. An added plus is the RL channel gain adjustment that enabled me to fine tune output.”
“Combined with a fine preamplifier you will hear nothing but the music as if you were there. The detail of all parts can be heard with excellent spatiality. Well defined bass also.”
“I researched the entire line of Parasound amplifiers and chose the Halo A 23+ based on what I was replacing. I was apprehensive due to the lack of any substantial reviews on the web but gave it a shot anyhow.
The build quality is top-shelf and the performance rivals anything above it's price point, and more so above it. Driving some Martin Logan Motion 60's (previous gen), this amp has exceeded my expectations. After about 30 hours I've noticed the increased immediacy in the sound stage and the attack of the bass notes is pretty astounding considering how cool this amp runs. I wasn't interested in anything Class D; had to be Class AB... and this amp delivers on the Parasound promise of neutral delivery.
I will note that this amp does produce a very subtle 60HZ hum but you have to have your ear right next to the bass drivers to detect it. I also wish the gain knobs had some graduated, stepping to them. With the rear of the amp facing away, it would be nice to count steps from either extreme. But that's a small nit. Overall very pleased with the performance of this linear amp.”
“I have a pair of Ohm Walsh Tall 2000's and at 88db efficiency and 6 ohms they are not easy to drive. My old amp wasn't cutting it so I made the switch to this. The results are great. I'm finally hearing what these speakers can really do.”