WTD: 4 or 6 matching single channel opamps

[Lawrence001]

I've bought a nice dac but it is limited by the (6!) Opa234 op amps inside (possibly cheap Chinese ones). 4 come off the 4 WM4870 dac chip outputs and then another 2 off the summed(?) outputs of each pair.

I've replaced the output pair with a couple I had in my stash to good effect but I still need another 4 decent branded ones (ie from a reputable seller not a cheap Chinese eBay shop) to replace the dac chip output opamps.

Alternatively, if anyone has 6 matching good chips I could make them all the same.

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[Lawrence001]

I think it was the OPA627 I used on the output section, so 4 of those would be perfect!

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[Lawrence001]

Actually it was the 637s I used in the output stage so I still have 2x627s left. I could make do with just 2x627 or 2x637 to complete the upgrade. I'd better check if they are the AP or BP types...

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[Lawrence001]

Anyone got 2x genuine OPA627s going spare?

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