Very Simple Preamp

[Christian]

Hi,

Not long ago I finished my poweramp based on the Lm3886 chips.
But with this design a lack a preamp, so i juste put the volym pot on the input lines to my poweramp.

If my signal is very weak, am I missing out on some effect?
For instance if i amplify the signal from my computer which isn't a very powerful signal source.

And if this is the case i would be interested in building a very simple preamp in a seperat housing. The input impedance is
10K Ohm.

Any suggestions are very welcome,
Best regards/
Christian V

 

[sonnya]

Get something like the OPA2134 from TI (former BB) Should be a nice device for your job.

Try look at this thread :

http://www.diyaudio.com/forums/showthread.php?threadid=1859&highlight=2134

I guess you know how to design with opamps, since you done one with a LM3886T!?

Sonny