Ok, im going with the LA3600. And i made little mistake, i meant TL072 not TL071 pardon me.

And i will post some schematics and pic's of project when i have time for that.

[Personally, I think the bigger issue is which one of the chips you can get - if any of them...
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Thanks.

Getting these chips ain't big problem. Already found all of these.

HI,

I've been working with preamp that includes 10 band eq. and TL071 opamp. Im using 2 pieces of LA3600/KA2223 and opamp front of them and between them. How do u think this will work?

And is there major differences between LA and KA? first 5 band eq. is for low frequences and other one is opposite. Do u think that i should use one of these in "low" section and other one in "high" section?

Pardon my crappy english.

Jussi Koivuranta