The JC-l is a 400 watt pwr amp, not a preamp. The Parasound preamp is a JC-2 which I happen to own. It replaced a McIntosh C-220 and I have never looked back and never been sorry for the change. Associated equipment is a Parasound A-21 power amp, which is IMHO one of the greatest buys in audio. I am driving a pair of Duntech Sovereigns which I have owned for almost 24 years. The JC-2 and the A-21 is a marriage made in heaven. By the way, the Parasound A-21 replaced a McIntosh MC-402 and in my system, the Parasound was superior in every respect.