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 cbrents73

The preamp IS the heart and soul of a system - it’s the driver in the car. The driver puts the car in gear, controls the steering and direction, and controls the throttle making the engine do what it needs to do to run the car. This is all the functions of a preamp in a sound system.
It drives the system! It has to accept and manage a wide array of sources; Turntable, CD and/or BluRay player, Streamer, Cable/Satellite Box, etc., allowing you to select between all of those sources, and has to control what the amplifier does with your speakers. It’s gain, balance, treble/bass, dynamics, it controls all of those things between the sources and the amp.
Without a good preamp, it would be a lot like putting a kid who just got their driver’s license behind the wheel of a race car. If you can’t manage the sources well, that’s like not knowing what gear to be in. If you can’t control what the amp is doing, it’s like not controlling the throttle, which you’re likely to blow the engine and burn the tires along with not being able to handle the steering. That’s much like not getting a good image between your speakers because you can’t control the balance and not being able to fully handle what the amp is doing to the speakers where it can sound distorted or likely blow your speakers. I hope that’s not confusing and gives you the direction you need?
Good luck in your quest!