Preamp with tone controls other then McIntosh C22

Good for you!  

The best is almost surely the Luxman Classic CL-38U.  

very good control parameters and Stereophile loves the thing (Class A0

and it is a bargain

randy-11
Thanx a lot. Can you compare them soundwise? I mean C22 to CL38U?

no, but the Luxman has the ability to set the parameters for the tone controls

You really need to listen [1] very very carefully [2] in your own room [3] to your own system [4] using careful double blind techniques and [5] using well-known source material of the highest quality

... to hear SQ difference between two high end pre-amps.  The differences are likely to be subtle.

Parasound does. Fairly clean implementation but they're tilting rather than shelving.

Best,

E

Tone controls are usually implemented in two ways:

1. tilting. The FR goes up or down as it gets away from midrange.
2. Shelving. The entire treble or bass region goes up or down a maximum amount.

These are general assesments. Some of the best, in terms of features, were the older Yamaha series with built in parametrics.