Stuck point!

very few tube amps, even very expensive ones (much less budget models) will produce bass in a way that approaches what solid state, esp. class d amps will typically do

of course good tube amps will give you lovely, dimensional mids, smooth, natural highs and glorious, expansive imaging (if the speakers are not too hard for the amp to drive) ... so in effect, that is pretty much the trade we all make when we move from a to b... sometimes the trade is helped by using ss-powered subwoofers to augment tube amp driven main speakers

for a newbie to tube amps, i agree with the advice given that a push pull amp using el34’s or kt88/6550’s would be a good stepping stone into this world... a direct move to single ended amps might be a bit jarring and lead to dissatisfaction, especially if the user still wants superior bass response 

AIR CON !!!

change to tubes, adds heat

add fan adds noise

in-room fans push heat, they don’t remove it, unless they ’exhaust’.

my small office: tube amp: can you add a small very quiet exhaust fan in the ceiling? Not any fan, I paid extra for a fan so quiet I forget it is on. It is in the far corner from me, and gently removes the hot air near the ceiling, dumps it into the attic, has a little self opening/closing damper. If outside wall it could dump outside, consider insulation in that case.

You grab the power from your room’s existing light switch, add a fan switch just above, pull wire up to above, small load, just add to existing circuit. No holes were needed in the wall. Note: some fan switches have lights when on, I should have done that.

Or, grab the power from attic light, down to wall switch, back up to fan.

check the boxes, ceiling or wall, quiet, get clues, then do some more research, don’t over-do the cfms, just enough for your space, keep ’sones’ low.

https://www.lowes.com/pl/Bathroom-fan-Quiet-under-1-5-sones--Bathroom-fans-heaters-Bathroom-exhaust-...

you can dump the heat into an adjacent room normally unoccupied, and normally quiet, i.e. garage, unoccupied office cause you aren't in it .... you don't want noise getting into the listening space thru the fan.

Pushing  87db speakers with a 23 watt Chinese single ended amp is a recipe for disaster. If you want good bass and the power to push inefficient speakers you should look at VTA (Bob Latino's) St 120. Its not an integrated like the Wlisenton. But IF you were running mono blocks you probably have a preamp. This will be a much better route than you are headed IMO. Plus you will have good service available too
As to bass, I've had the ST 70 and now the custom version of the 120 and have plenty of bass from both.

@sebrof, what would a recommendation be in Class D-A or A/B in around the $3,000 mark?

I don’t, I moved my tube amps into a bigger room :)

I actually ordered two of the Class D Mini GaN amps that twoleftears mentioned in the post directly above yours, but only out of curiosity, not because of heat issues (there’s a thread about how great they are and I couldn’t help myeslf)