Best Integrated, period.

Sorry, not sure why it's not working. If you search "TRL" it will pop up. Here's the name of the thread.

"TRL ST225 - Goodness anyone else own this amp"

There is no best,look at a Coda int, on their website.

I've never had an intergrated period.

There is DartZeel integrated on it's way, also improved VAC PHI beta is comming.
Regarding Vitus, UHF mag reviewer's new reference is Pass X600.5.
But for the lot of money there is Kondo's Ongaku integrated amp (it's my dream amp, no matter what many of you think).

Perrew, have you tried to use a different linestage with the Spectron, or a different amp on the VTL TL7.5?
By the way, as the Rowland Continuum 500 converts the AC to 385V direct current and buffers it through capacitors before feeding the result to the power supply, it should also address most any residual AC noise problems you may be experiencing. G.