How important is the pre-amp?


Hello all,

Genuine request here for other's experiences.

I get how power amps can make really significant changes to the sound of a system. And of course speakers have an even bigger effect. And then there is the complicated relationship between the speaker and power amp. But I wonder about pre-amps.

In theory a well designed preamp should just act as a source switch and volume control. But does it add (or ruin) magic? Can a pre-amp color the sound? Alter pace and timing? Could you take a great sounding system and spoil it with the wrong preamp? Stereophile once gushed (while reviewing a preamp that cost as much as a car) that the preamp was the heart of the system, setting the tone of everything. Really? Some people don't even bother with a preamp, feeding their DACs straight into the power amp. Others favor passive devices, things without power. If one can get a perfectly good $2K preamp, why bother with 20K?

What your experiences been?
rols

Showing 1 response by rooze

I’ve never had good results running direct from CD or DAC to power amps. Others do and so obviously I haven’t made the correct equipment choices in that regard.
 The only good experience I’ve had with eliminating an active preamp is with utilizing a Manley Steelhead’s variable output. I found that to be excellent. I use an expensive tube preamp and can honestly say that there’s only a marginal improvement in areas of tone and transparency when compared to the Steelhead’s vari-out. But these small improvements are worth it to me, for the time being.
I think there’s a higher cost threshold that one must pass through with an active preamp for there to be an overall improvement in system performance. Cheaper preamps (with lower quality parts) always seem to add coloration and remove transparency in my limited experience.