What qualities stand out in really good solid state preamps?


Recently I posted on the Herron HL-1, asking people what they thought, how it compared, etc. It's been sold and that's ok. The search continues. 

But it raises a question I'd like to ask folks:

What attributes do you look for in a good solid state preamp?

Some qualities — quietness, durability, seem pretty obvious.

But what other criteria do you use to differentiate between solid state preamps?

How can they differ and what matters to you?

Please let me know!

P.S. As I've looked around, I've begun to learn more about some of the legendary preamps — made by companies such as Threshold, Ayre, Bryston, Pass, Apt-Holman, and others. It's good to have these names as references, but it would be even more useful if I knew what these brands conveyed, sonically. I've played with the idea of getting a newer Schiit preamp and then I wonder -- what if there's a "classic" preamp out there, used? What would it deliver that was worth searching for?

128x128hilde45

@soix   +1 

Not so secondary issues would be warrantee and serviceability. Bryston excels here, at the expense of the last iota of performance. IMO

@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.

One of the best SS preamps I heard was the old Pass Labs two chassis preamp.  It was not like tubes but fast, separation, dynamic contrasts, deep bass, etc.  I purchased mine used years ago for $2K.  It looks good also.  The Ayre would also be my consideration.  I would consider either one of them over the older preamps you mention and what others have mentioned since we have probably heard them all at one time or another and have upgraded too many to mention..

Happy Listening.

@curiousjim I'm not against hybrid preamps. The point of this thread is different. It's meant to ferret out criteria.

@audphile1

What attributes do you look for in a good solid state preamp?

for me it is the following -

  • tone - must be natural
  • dynamic range - must be able to sound laid back and gentle but scale up to explosive forces fast, as fast as demanded by the recording
  • low noise floor
  • Texture in the bass
  • warm and palpable mids
  • extended and sweet highs
  • nice, non-clicking silent volume control (want to be able to adjust volume without hearing any clicking or other artifacts)
  • must image well and create a realistic and colorful soundstage

This is an amazing list. Many said "neutral" or "quiet" but your list really adds a lot. And you have heard all of these differences between different solid state preamps, I’m assuming. Thank you!