Integra Research is a 100 per cent daughter of Onkyo, which was founded to market high end-designs of Onkyo - and that includes R&D. They have a good website, too.
The Pre is made my Onkyo , BAT , and Apogee. I own the pre and I love it. The amp is good, but I prefer and own Classe. You can read a thorough review on Stereophiles Guide to Home Theater, Feb 2001.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.