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previous: jason Has anyone built this yet. I sudden... -- 9/8/1999 12:22 PM

Re: GEO A/B/Y box.....questions

9/8/1999 2:43 PM
R.G.	Re: GEO A/B/Y box.....questions In my proto, the biggest difference chips made was in drive capability. The LM833 will happily drive a 600 ohm load. The lower the impedance the chip will drive, the better it will control the primary inductance of the transformer(s) and the lower the bass is extended. Other opamps will work, the tone, especially in the bass may (or may not, depending on details) be changed. I suggest socketing it, and swapping.

9/8/1999 2:43 PM

R.G.

Re: GEO A/B/Y box.....questions

In my proto, the biggest difference chips made was in drive capability. The LM833 will happily drive a 600 ohm load. The lower the impedance the chip will drive, the better it will control the primary inductance of the transformer(s) and the lower the bass is extended. Other opamps will work, the tone, especially in the bass may (or may not, depending on details) be changed.

I suggest socketing it, and swapping.