I have just acquired a low powered twin tweed clone. The normal channel inputs are voiced pure tweed, the two bright inputs are voiced #1 blackface #2 slight plexi. This amp is also set up for fixed bias or cathode bias and will run 6L6s or EL34s, run one rectifier or two. So I have a lot of tonal options in this amp. Which leads me to the question of do I mod the AA-165 bassman I have to get a Marshall OD tone with a master volume or sell it and have an 18 watt built. I am looking for good classic Marshall tone at volume levels for home use. Money is an issue so modifying the bassman would be the cheapest way out, but I am not sure I could achieve the outcome I am looking for . Have any of you had success modifying a bassman like this? If so do you have any links that you might point me to. Any thoughts or suggestions welcome.