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OpAmp Swap?

I own a pair of Shanling SP-80 Monoblocks. For those of you who don't know these are really integrated monoblocks. As many have found the Amp section is a fairly good design, however the Pre is lacking. Right now these have a Chinese OpAmp (opa2604ap). My question is whether or not I can drop in a Burr-Brown(now TI) opa627ap without any other modifications? Thanks in advance.
edge4syn
cford
66 posts
 
They are not pin to pin compatible, the OPA2604 (not Chinese but made by Burr Brown not owned by Texas Inst.) is a dual (2 op-amp in the IC) and the OPA627 is a single.
mordante
511 posts
 
Bur Brown op amps have been difficult to buy since they were taken over by texas instruments. At least it was 2 years ago. Don't know how it is today. An other nice single opamp is the AD 797 but I heard it is rather tricky. I tried it in my pre amp but there wa to much DC offset.
jsman
246 posts
 
Anyone here swaped op amps in a R2R deck? I am considering trying this and would like advice, my deck is an Otari MX 5050 BII.
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