The AA-864 Fender circuit is the most respected of all the Blackface Fender Bassman circuits, and other circuits are often converted to AA-864 specs. In this long and rather complex video we will first overhaul a mint original AA165 Bassman circuit to optimize its audio performance. Then we will convert the circuit to AA-864 specifications and provide an AB comparison of he two circuits. Audio comparisons will include 1.) The Normal Channel of both circuits 2.) An AB comparison of the AA-165 vs AA864 Bass Channels 3.) An AB comparison of both circuits with equal gain. In addition, we will open an incredible gift, be visited by Mitzy, enjoy a product evaluation, and have more fun than a barrel o' monkeys ;). See Table of Contents (below).

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Video Table of Contents:
0:00 Open Box
1:33 Chassis Revealed and Examined
4:36 Read Letter
6:11 Identify Circuit
13:48 Explain the Plan for the Experiment
15:34 Overhaul and Optimize AA-165 Circuit
17:07 Break: Open Fabulous Gift
22:51 Resume Overhaul of AA-165
45:50 Break: Product Review
47:20 Begin Conversion to AA-864
1:03:35 Audio Demo of Normal Channel Both Circuits
1:06:46 AB Comparison of Bass Channels with Discussion
1:15:25 AB Comparison with Equal Gain in Both Channels
and Discussion
1:19:59 Farewell Comments