Please post your impressions vs P1. I have a P1 and I like it, I do not know if P3 is an upgrade (better SINAD) or it is just adding Bluetooth and headphone amp, as I don’t need these 2 thingsBased on what I've read the P3 runs the tubes at a higher voltage than other similar units. What that means in the end I don't know and I've been torn about keeping the P3 versus the P1 I already had on hand. I'm leaning toward keeping the P3 because I like the detents for the tone controls and enjoy the sound I get from it paired with the V3. I'll insert the P1 before making the final decision. Hell, I may just keep both. That's part of the fun with these inexpensive units is that the costs involved are so small.
BTW in the P3 you cannot decrease Bass and Treble, unlike in P1. In the P3 the neutral position is all the way left, and you can only INCREASE bass and treble. This is weird