OK, This is where it hurts the most (newbie that hurt his op amp)!

[zei]

Hi Keith

I was just wondering. I know alot of people believe that the opa627 is "superior" to any other OPamp.

So when you replaced the NE5534 with opa627, Did you notice anything different?

Did the sound improve at all?

/Z

[AndrewT]

Did the sound improve at all?

yes,
I'll bet he can report that the spark sounded really lifelike.

I hope, now that you know the difference between volts and amps, you can smile again.

Almost as bad as the day I thought I'd help my brother in law to find why his lightbulb in the living room was flickering.

Went upsatirs and litted the access panel to reveal the back of the lighting rose. Applied my analogue multimeter and BANG, my meter is
Oops, set to amps across the mains
Buy a new digital meter (I still have it some 20years later).

[KP11520]

Hi Zei,

Like Andrew said, the most memorable impact of this op amp was the sound of Lightning (but a slightly smaller version)!

Andrew, it was for your own good!(Only kidding) The DMM is probably a nice one and you are glad you have it now. But that is not the way any of us want to have to upgrade! Volts, Amps it's all the same as far as wattage is concerned! YIKES! What a lesson!

I can't comment on other op amps because I have no experience with them but I can say that all the positive things said about these are true and I didn't experience any of the negative things posted!
I listened for a short while before moving on to the Biasing mod. Also, at the same time as the new op amps were changed the muting transistors were clipped off so I can't swear to what percentage of the improvement belongs to which mod.

However, the OPA627APs put the missing air back into the equation. The 5534s in this setup were really nice (but not like the 627s) and I can see how some of the people here like them (but like most op amps in the right configuration). Things in the background seemed like they were behind something else, seemed to take on a presence of their own and add to the music rather than kind of blend in, in a muddy sort of way. Many people suggest the AD826 saying it is more bright and the 627 is a little darker. The 627 seems brighter than the 5534 with more timbre from the mids through the highs so I am glad I didn't use the AD826s. The Bass seems to extend just a little lower and is some how more clear. What they call soundstage and imaging is increadible. Bigger, wider, deeper and everyone in the band seems like they are back in their place when it was recorded (artificially or whatever but the effect is nice). The 5534s did a nice job with this too but the 627 is in another league. More reviews after I get through the Lightning strike!

Regards//Keith

[cliffforrest]

Originally posted by AndrewT
yes,
I'll bet he can report that the spark sounded really lifelike.

I hope, now that you know the difference between volts and amps, you can smile again.

Almost as bad as the day I thought I'd help my brother in law to find why his lightbulb in the living room was flickering.

Went upsatirs and litted the access panel to reveal the back of the lighting rose. Applied my analogue multimeter and BANG, my meter is
Oops, set to amps across the mains
Buy a new digital meter (I still have it some 20years later).

I doubt if there is an engineer alive who hasn't done that or similar at some stage in their career.

The trick, of course, is to do it with someone else's meter!

[KP11520]

Originally posted by cliff

The trick, of course, is to do it with someone else's meter!

Now that made me laugh! I needed that!