5e3 build voltages

[GreaseBall]

I've just finished building my first ever tube amp. I'm nothing of an electrician but I know a little about soldering  . It works, clean tones are really nice but the overdriven sound is quite harsh and trebley sounding. I just thought that maybe someone more experienced than me could throw an eye on this build. I used the Hammond 291BEX power transformer.
I'd appreciate any feedback, thank in you in advance guys

[sluckey]

Your voltages are way high for a 5E3. The output tubes are idling over 34 watts! Could be part of your issue. You can drop the voltages by using a real NOS 5Y3, unless this is already the case.

Are you using a 12AY7 for V1?

[GreaseBall]

Yes, I'm using 12AY7 for v1. So the rectifier could be the problem? It's a TAD 5Y3GT

[sluckey]

How much AC voltage do you measure on pins 4 and 6 of the rectifier tube?

[GreaseBall]

It's 335V AC between ground and pins 4 and 6. My wall voltage is 230V if it makes any difference.

[GreaseBall]

Ok, I've changed the rectifier to JJ 5Y3S and now it seems to be fine.
B+1: 360 vdc
B+2: 320 vdc
B+3: 237 vdc
My amp sounds significantly smoother now, much more like I would want it to sound.
I think there was something wrong with the rectifier I've had before, there's 5U4M written on it, so I don't know if it was the right tube.

[Latole]

How about a bigger value for 6V6's bias resistor ?

I often use Zeners diode stack to have a lower B+ voltage.

https://robrobinette.com/Generic_Tube_Amp_Mods.htm#B+1_Voltage

[JB]

Ok, I've changed the rectifier to JJ 5Y3S and now it seems to be fine.
B+1: 360 vdc
B+2: 320 vdc
B+3: 237 vdc
My amp sounds significantly smoother now, much more like I would want it to sound.
I think there was something wrong with the rectifier I've had before, there's 5U4M written on it, so I don't know if it was the right tube.

That's almost exactly what I measure in my 5E3.  Enjoy it!