Preamp for GB150D

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Hello, I'm planning to build two of Greg Ball's GB150D. It would like about 2Vpp in before clipping, so I decided to give it that.

I designed some lame schematics to do that. It's supposed to have +4dBu balanced and -10dBV unbalanced inputs. The pot is also a LED driven LDR ranging from 30Ω to 5MΩ.

Schematic

I need some help with selecting the ICs for this and optimizing the circuit.

I've been looking at this one, but it has rather high impedance.
INA128P

I'm hoping for some help here :)

- Zoxc
 
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