2. amps-preamps
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hair brained idea and a hello

I was wondering if anybody had any info for some hair brained idea i have.

Right now i have a project rpm 5.1 with the stamdard pearl needle, rollunning into an upgraded interal cambridge 640 with upgreated sound chips and high quality ports.

Now i cant evenenjoy rather bright sounding vinyl sound.

I was wondering if anyone has "daisy chained" for the lack of a better term a tube preamp and a solid state amp such as the cambridge.

I am interested in what kind of change i would get at all trying to daisy chain these amps or if somebody with more knowledge or experience then i, as im a mid 20 year old just getting into this whole audiophile side of enjoying vinyl.

-any reading, knowledge, anything would be greatly appreciated.

Thanks,
Jabbles180 (adam)
jabbles180

Showing 1 response by jmcgrogan2

jmcgrogan2's avatar
jmcgrogan2
6,346 posts
 
I was wondering if anyone has "daisy chained" for the lack of a better term a tube preamp and a solid state amp.

Yes, many, many, many people have used a tube preamp with a solid state power amp. Just mind your impedence matching. Minimum recommended is 10:1 ratio of amplifier input impedence to preamp output impedence. The higher the ratio the better the results.

Since you seem to be a Cambridge fan, let's use the Cambridge Azur 651A Integrated Amplifier as an example. The amplifier section has an input impedence of 47 Kohms, so any preamp with a output impedence < 4700 ohms will work fine. Remember the higher ratio is better, so 20:1 is better than 10:1, which means a preamp with an output impedence of 1000 ohms will work even better with this amp.

Have fun!!
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