Originally Posted by brianroth
One potential "gotcha" can be the higher current draw of substituted opamps vs the originals. If swapping out only a few, no biggie...but if dozens/hundreds of chips are swapped out, the OEM power supply may not have enough moxie.
One other thing to ponder. Many desks, etc did NOT use sockets for the chips, so you will need to invest in a quality vacuum desoldering station (and learn how to use it! <g>) to avoid damage to the circuit boards.
No worries on this one. Sockets are included. Replacing them with machine sockets is still a good idea. That LT1352 draws 260 microamps vs 1.8 ma for a TLO72. The LT1358 pulls 2.3 ma. With the savings in current draw for the 1352's there's plenty left over for the 1358's.
Try a BB OPA2134 or the LT1358 in the stereo master mix sum amps. You may favor these over the 'ol 5532.