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 soix

As others have stated, it’s very system dependent.  But I’d venture a guess that in most systems a preamp is critical to the end result you hear.  Over my many years of listening/learning my two absolute biggest surprises were:

1- the preamp can make a huge difference in a system’s performance, and in my system the pre makes a much bigger difference than even the amp and is only behind speakers and the room in terms of its overall influence and impact on sound (again, very system dependent).
2- subwoofers can absolutely transform a system in terms of dramatically improving imaging and expanding the soundstage (it ain’t all about that bass).

These were the two biggest smack me upside the head/I didn’t see that coming moments during my long audio journey, FWIW in the context of your question.  I’d HIGHLY recommend at least demoing a good pre in your system to see what you hear for yourself — I bet you’ll be pretty surprised.  I sure as hell know I was.  Have fun with the journey.