Originally Posted By: PorterPlex
So YPAQ was accurate and not faulty, good to know it was not error prone.

It is error prone but never 4 at once. That and I couldn't get it to sound right.
During the last YPAO, the center was out. I hadn't changed the wiring or the speaker when installing the amp.
Not really a concern with one channel, its done it countless times before but never on multiple attempts or with more than one channel.
Not sure which is better,a little extra money in the account or days off.