What's the difference between Proceed's amplifiers


Specifically, the HPA3 vs. AMP3 and HPA2 vs AMP2.

Any insight would be great! Thanks.
casual73
The HPA2/3 are the more recent models, circa 1998.
The Amp 2/3 series dates to 1994.

John
I have a couple of Amp-2s and an Amp-3. I think the HP series are larger and have greater power. I have read that the HA series doesn't have quite the same sound, but I don't know that. The Amp-2 and Amp-3 are fine amps, with an excellent power band, and balanced inputs. Each channel has its own large tyroidal power transformer.

db
There is a difference, how significant it would be is up to your ears/wallet to determine.

Why the curiousity about these particular amps? You do know that the Proceed line no longer exists don't you? Do you also know that Madrigal no longer owns/markets Proceed/Mark Levinson components? Harmon International owns them now. FWIW, I have heard that service can be an issue, are you aware of this?
I would think that unless someone was giving them away, I might be looking for another amp. There are many good ones out there, even on the used market.