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?
128x128rols

Showing 1 response by tennisdoc56

The preamp is the electrical buffer between yourpower amp and line stage components, volume control, and switch between components.  The separation of the preamp from the amplifier made theoretical sense when they contained phono sections for low output cartridges that needed separation electrical fields from the amplifier output.  Adding another another supply, chassis, and cables increases the cost and complexity.  Well designed integrated amps are plentiful, and popular.  Concerning dacs,  be sure that there is a true volume attenuators in the output stage, and not just truncated digital paths