1st comes to mind is a SS McIntosh Preamp C28. It worked fine as a switcher/attenuator, many features I still want, HOWEVER, I did not like the sound of it’s MM Phono EQ.
I actually preferred the dinky optional phono built into my Audio Technica AT120 TT.
Now I use my Fidelity FRT-4 SUT into my beloved McIntosh mx110z Tube Tuner/Preamp’s MM Phono, sounds wonderful. If it was stolen or blew up, I wouldn’t even look about, just find another one, find some money (they have jumped up in price) send it to Audio Classics for check-up.
2nd, more recently: I needed a Phono EQ for my ’new to me’ office TT.
Temporarily I bought a $14 Pyle, compact, out of sight, got listening to vinyl up here for the first time. Better: tried ifi phono zen, preferred the pyle, sent ifi back. Tried Cambridge Alva Duo, preferred the Pyle, sent Cambridge away.
Finally, I bought my Little Luxman 10wpc tube integrated with both MM and MC within. Love/preferred it’s sound (compared Pyle via Line Level into Luxman). kept my Pyle as a loaner for others with problems, or still researching something they might buy.
I always say: anything to do with Phono: have return privilege’s!.
3. I tried a few SS Receivers to replace my beloved Tandberg TR80 in my garage/shop system (had to drive 2 sets of speakers). Nyet, Nyet, ... Finally I got a Yamaha CR-1020 SS Receiver (my 1st ever Yamaha). Great features/sound/looks, couldn’t be happier, except it is heavy, 42 lbs!
4th, I did a big search for a 'new to me' CD player, then realized I needed SACD as well. Asked/received help here, went thru about 9 recommended players (all used) until I tried the recommended Sony Vintage xa5400es, it sounds great.