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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi guys,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>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.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>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.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>So, is it really worth it to do the swap, and if so, any
component changes needed?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Also, 2 cents on the 1V controller thread: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><up on soapbox><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>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.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><down off soapbox><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Phil<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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