What qualities stand out in really good solid state preamps?

From my experience, it comes down to

1. features or lack of,

NEW: understanding the remote and options buried in the menus (often need to download/read the manual).

Vintage: plan on having it refurbished by someone. Some old jacks are corroded, even slightly under-sized, Audio Classics changed all my rca jacks to new gold plated.

2. sound of it's Phono Stage: i.e. I did NOT like the sound of my McIntosh C28 SS Preamp's Phono, everything else was terrific. I love my McIntosh tube preamp's Phono.

3. trim controls, not critical but nice to have: to level out the volume of various inputs, some vintage like both my McIntosh SS and Tube preamps. Other vintage?Some new have trim controls?

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Vintage: No remote control, how get remote volume at least? Remote Balance? 

I recommend the Chase RLC-1 to add remote features to a Vintage preamp. Use thru a tape or processor loop, or in between preamp and amp, OR, skip a preamp, use it's 4 line level inputs and get all of it's optional features

They come up on hifi shark often, none now. this price is ridiculous, but it shows it well. You MUST have the remote, no controls on the unit.

Sound Qualities: the majority of SS amps and preamps were/are designed to change nothing audibly.

People hear differences, individual opinions or a general consensus?

Take your time, research, read, consider warranty and later service, maker's longevity, ......

@hilde45 Have you ever considered a hybrid preamp? I just bought a PS Audio BHK Signature preamp and it has a couple of 12au7’s for the input and mosfet’s for the output. Only had it a couple of days, but I am really enjoying it so far.

It’s kind of interesting that Paul of PS Audio was dead set against tubes for a long time.We are talking about someone who led the charge for solid state for decades.

Now the story about how the late Bascom H. King (BHK) finally talked Paul into using "TUBES" on the input stage of his amplifiers, and then TUBES in his BHK preamplifier. Why Paul says, "because it sounds better". Now he agrees.

All tube or hybrid with tube in the preamp, how PS Audio -or how Linear Tube Audio does it is fun to explore and test out. Finding a suitable (new era) solid state preamp that sounds "natural", and does not break the bank, is fun and time consuming research project. Best of luck to all here in that hunt, enjoy! :)

@elliottbnewcombjr After reading your two posts I do not see any mention of sonic metrics. Your comment, "change nothing audibly" is all I see. After all your years in the hobby, you never compared one SS preamp to another and made any notes (even mental) about the differences between them? (Such as the ones listed by @audphile1 ) That surprises me based on your other posts. Then again, maybe you are just being transparent about the fact that, for you, there’s nothing to be noticed.

I’m not asking for buying advice in my OP, but thank you for your thoughts.

Inexpensive and interesting...

https://www.akitika.com/PR102.html

DeKay