Picking a Tube integrated amp

Far better than anything discussed above - Pathos Acoustics Inpol2 flagship integrated, pure class A, fully balanced.

I have owned 2 Primaluna integrated amps - the Prologue 2, then moved up to the Dialogue 2 - liked then both then moved to separates, the Dialogue Premium power amp (not hp) and Prologue Premium preamp. Right now I am running Spendor SP2/3s and loving it. Also have Martin Logan ESLs. I love the Triode mode. You can also really tweak your sound as desired with input and power tubes. It is teally like having 2 amps in one with various combos. Last night with the Spendors, and PL spinning Aimee Mann’s latest and running EL34s - it was great!

The Pathos Acoustics Inpol2 is in a totally different league than all the above integrateds mentioned.  Pure class A, balanced from input to output, uses tubes for input voltage gain, MOSFETS for output current gain. First introduced in 2006, it is still produced today and remains Pathos' flagship integrated amp!

Also pure class A is the Line Magnetic 518ia Integrated Vacuum Tube Amplifier .... 845 output tubes .... 22 wpc into 8 but your Vivid speakers with an 89 dB sensitivity should be fine ... and your speakers are closer to the 4 ohm load in the lower octaves (bass). Unless you listen to very load levels, this is a wonderful integrated but @ $4,500.

There is a thread with people having trouble with Line Magnetic customer service. At their price point, I would probably be buying used. Any thoughts?