I’ve owned over a dozen integrated amps. I would go with more than 100 watts if solid state, 100 watts tube would be ok. I have 90db speakers and use a 250 watt separate amp.
Here are some of the integrated amps I’ve owned: McIntosh 6500, Hegel h100, Hegel h360, Jolida, ps audio sprout, ps audio sprout 100, Rogue chronus magnum with kt120 tubes, and I currently use the Auralic Polaris in my rec room with Usher 86db speakers or a pair of Revel m35 speakers.
I used the jolida, both sprouts, and the auralic in my 2nd or 3rd systems and they all sounded pretty good.
McIntosh ma6500 or the ma6900 are very nice sounding, they are over 20 years old now. The hegels were nice sounding but a little light in the power category. I bought the 360 because I wanted to use the integrated dac but it wasn’t as good as my separate dac. I upgraded my speakers to the larger Ushers in my 26x16x15’ room and the Hegel didn’t control the larger woofer so I went separates. The rogue tube sounded very nice with the usher mini dancer 2’s, so much so that an audio friend posted on agon how good the setup sounded. I used the 4 ohm load setting. My only complaint was in the bass area where I thought it sounded a little flabby so I bought the hegels.
in my 2nd system, the Auralic Polaris is a great sounding integrated, with everything you can think of in it. My large ushers at 86db efficient sound very nice thru the Polaris, I just need to turn up the volume a little more, with the Revels, normal volume levels. Read some of the reviews from Darko and others on the Polaris, I would take the Polaris over the hegels up to the h360 for the sound quality and what this amp gives you in features. If you like tubes, the rogue with its integrated phono was nice sounding too.
In my dedicated audio room, my 250 watt SS separate amp is as low as I would go for my 90db Revels.
