[sdiy] audio op amp replacement

[phil macnutt]

Hi guys,

 

Kinda OT, but I need a little help here.  My friend Adam and I are working
with an old analog(ue) mixer in the studio that has bunches of NE5532 op
amps installed.

Adam caught wind that changing these out to OP275s would improve the sound
quality.  I checked the data sheets and they are pin compatible, but I'm not
smart enough to decipher the other specs to determine if another other
changes in the glue components around the chip would need value changes when
swapping these chips.

So, is it really worth it to do the swap, and if so, any component changes
needed?

 

Also, 2 cents on the 1V controller thread:  

<up on soapbox>

beware that when using cheapo casio style keyboards, you are getting the
worst action on the planet.  Often overlooked, I consider this to be very
important for performance.  Now if you just make bleeps and helicopter
sounds, or spend most of your time just looking at waveforms on the scope,
then this does not matter, but If you gig and actually play leads and such,
then I feel the extra money has to be spent for a better set of keys.  I
wrote Roger asking him about the action on his sweet looking walnut cab
controller, but I never heard anything.  I suspect though that it is very
good.

<down off soapbox>

 

Phil

 

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