Does EAR324 phono stage sound like tubes ?

I used to have the EAR 324. I would not say that the 324 is very quiet. It is somehow quiet, but it is not very quiet. When the 324 was in my system, I could hear some hum if I turned the volume all they way up, without music of course. There was no hum with the volume dial set to normal listening levels, but I didn't feel comfortable with it. I do not hear anything with the volume all the way up from either the Benchmark DAC or the Einstein phono preamp.

The 324 seems to add some distortion, which is easily perceived from the mid-range and up. This distortion helps the bass notes have some more texture though. I think the 324 kind of distortion is what helps this unit to sound real, so it should not be read as negative.

I would certainly not call the 324 sound "tube-like", unless we're talking about 1990's tube units. IMO, today's tube units neither sound like tubes or solid state, they just sound right and free of distortion. Of course, what sounds right to me be not sound like that to others.

Having said that, I'm very happy with the Einstein phono preamp. In my system, it is definitively dead quiet with more dynamic contrast than the 324. It does take quite a while for the Einstein the break in, but once it does it totally gets out of the say to the point you no longer think there is phono preamp in the chain.

I would also add that the 324 would be more system-dependent than the Einstein because of its unique sonic signature.

I perceived the sound of the 324 as being taut throughout, but with some added noise and distortion. This tautness plus noise/distortion can also be present in live music that's neither played with good quality instruments nor in an uncontrolled acoustic environment.

I have a tendency (good or bad) of associating this kind of harmonic distortion to certain kind of music performances. I personally like the sound taut and clean, which is why I don't enjoy performances at bars or other places where the space was not originally conceived for playing music.

In the end, the 324 is enjoyable for certain time, but after a while in can be fatiguing (at least to my ears).

It is unfortunate that I never tried the MM section of the 324 since it seems to be the better designed half of this unit. I even purchased the Nagaoka MP-50, but I sold the 324 before trying this cart with it.