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Finding the right tube preamp (input values) for Mccormack DNA

Forgive me but how do I determine the input sensitivity on any particular tube preamp? 

I have tried to figure it out some manufactures are easy and label it but some have a lot of values and with my limited knowledge of values and current specs I find it hard to figure out which is a good match.

I have a Mccormack DNA-1 Deluxe and am looking to add a tube pre. I have seen the likes of Audible Illusions, Conrad Johnson, BAT, and others who are good matches but I would like to possibly see about modern gear for a good match. Like Jolida, Rogue and Odyssey to name a few. 

What are the specs I am looking for to see if they are a good match? I have read the Mccormack has input value of 10v.

Thanks,


db
photodusty
hifiman5's avatar
hifiman5
1,611 posts
 
@soix I believe you are mistaken.  I asked Steve Mc about input impedance and was told that it remains 100k after his SMc Audio upgrades.
photodusty OP
79 posts
 
See, now even more confusing. 

So when looking at a preamp, what values what am I looking for?...some say 10v some say 100K some say 28db volume.....etc....


db
atmasphere's avatar
atmasphere
7,068 posts
 
You want a preamp with plenty of overhead, so at normal volumes it makes no distortion. That might be that 10Volt figure, although IMO that's a little low.
Since you have NHTs the gain might be handy although most tube line sections won't have 28 dB- 15dB is more comon. The input impedance of your amp is 100K (single-ended) and so nearly any tube preamp can drive it.

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