Originally Posted by 4DHD
Reading on the New Classic series, I never figured they were are good as the old HCA series.
Although, I can tell no difference between my HK Citation 19 and my HCA2205A. So I use the 19 to power my mains.
And I really like having the Halo P7 as my pre.
And having auditioned the Prelude MTS, I can say you have a find set of speakers.
Infinity has not made a speaker as good since.
The Halo Series Power Amplifiers are almost entirely based off of HCA Series ones. The Halo A23 is quite similar to the HCA-1000a, the Halo JC-1 Monoblocks are very similar to the HCA-3500 (the 3500 is literally 2 separate amplifiers in one chassis down to using dual power cables), the A52 is based off the HCA-2205AT and so forth.
Whereas the Halo and HCA Series were designed by John Curl, the New Classic Series is not. One nice thing about the New Classic amplifiers is that due not not being biased into Class A operation, they run far cooler. In addition to the much different cosmetics in the Halo Series, the Halo's also have slightly larger power supplies than the HCA Series.
For instance, the A51 uses a 2.2 kVA Toroidal Transformer and 164,000uf of capacitance compared to the 2.0 kVA and 150,000uf power supply in the HCA-2205AT. Given that the 2205AT retailed for I believe $2500, the A51's MSRP is $5500. One somewhat surprising thing is that the HCA Series actually offered a longer warranty. Whereas the Halo's offer a 5 Year Parts/Labor warranty. the HCA's offered a 10 year Parts/5 Year Labor warranty. 2 months ago I was able to send in a 9 year old HCA-1000a that had been collecting dust in my garage due to the left channel not working.
Parasound provided an RMA and repaired the channel, either repainted or replaced the fascia and did it all free of charge down to return shipping. While I was surprised that instead of sending it back with the original box for the 1000a used to ship it to California with Parasound sent it back in a Halo D3 box, the Halo box offers far more protection. What an amazing company they are/