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Matching tube preamp to ss amp

First time of venturing into tubes and i'm a little confused on impedance matching, the pre amp is a Prima Luna Evo 100 with an output of 2800 ohms and the amp is a Nad 220 that I just had recapped with an input of 25Kohm It seems like it might not be the best match, which is why I'm putting this out to you folks that have far more knowledge, and I would like to know better before purchasing the preamp.
oldgzzrr

Showing 2 responses by mesch

mesch
3,530 posts
 
It is not be the best match, as others have said,  it is borderline. How low in the bass region do your speakers go? How do the pair sound to you? While saving for another amp. look into ones having input impedance of 50ohms or greater. 
mesch
3,530 posts
 
There are a number of tube preamps  within your budget that have a lower output impedance. Jolida, Aric Audio, Quicksilver, Atma-Sphere, Van Alstine, Rogue, and others. 

Otherwise look for an amp with higher input impedance. Either way when changing amplification, I would improve on the impedance ratio.

Giving your speakers are not attempting the lower octave you may not be hearing a problem with your current matchup.
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