New preamp, loss of low freq.?


Hooked up new preamp, and I lost what I think is some low freq slam. Reasoning behind this?
i have been rewarded with the best cleanest, accurate midrange/highs I have ever heard, but did lose some low frequencies.      Normal?  

Sanders preamplifier is the new addition. 

Should i I hook up my equalizer to  smooth out, and add some low freq. 

it it is recording dependent, I still feel I lost some bass when sanders is in the mix. 

Not complaining, this has completely opened up my energy rc-70's, I have never heard these sound so loud, so clear before.   It's I feel I lost a few octaves in the lower register. 

Better? Leave it, I can definitely get used to this sound, as before it was a small bit boomy, maybe I just need time to adjust, and to let the pre warm up for a couple weeks. 

thoughts, recommendations, tweaks? I suppose I could move the speakers a little closer to the wall, this may add a little more bass. 
128x128arcticdeth
Made by Conrad Johnson, does it have to do with impedances of tube preamps, or ones that CJ makes?

If and I state if, this preamp has an output coupling cap this could be the problem as I’ve outlined above, it has nothing to do with the output impedance of your preamp which is nice and low at 50ohms being solid state, it's to do with the output coupling cap size if it has one.

As for poweramps that have 10kohm input impedance, yes this is very low and I really have a hate for this, not only does it create problems of preamps with to small a coupling cap as you "may" have.

It can also create this problem: 10kohm input impedance on power amps can also create problems with output impedance of passive or active tube preamps that have high output impedances, but this is another problem, and not associated with the preamp you have being solid state. 


Cheers George   

George, of course you're right, it's not an impedance mismatch...I'm terrible at math.
 
The only way to know if there's an output coupling cap is to call the company since this preamp was designed to mate with the Sanders amp.