No difference in terms of sq. He offers both types purely because different applications, I have more amps with single DIP sockets so bought duals and not singles. It's your choice, are you thinking of rolling chips in anything else?
P4 the Warbler a new portable amp from iBasso . . first impression pg 3 . images Pg 6&7 . . . - Page 34
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Ok, I see. Now that you've mention it, I actually have a desktop DAC/amp that has socketed opamps, a Matrix Cube. If I go for the dual LME49990, I guess I can use it there too! Great advice, thanks!
Mr SpudHarris and all other !
What is your P4 configuration? Can you upload photos and a description of the sound?
I am still working through some basic concepts, such as what each component is that I am looking at.
I plan to upload info for newbies once I an sure I understand what I am looking at.
"Is that amps circuit optimised for the 627 chip?"
- I don't... and am open to recommendations for rolling.
This is where I bought all mine.....
The ISL5002 are a little tricky to get as they come on a special adapter with resistors on the base. I bought mine from Ron Kerlin (HiFlight). He is my OpAmp Guru and an absolute gent, I'm sure he will sort you out if you drop him a line.
About the ISL5002, can you tell me if I need to get 1 or 2 of those to use in the P4? I'm going to PM Ron to ask about availability and price...
Possibly. You can still find them at eBay from a chinese seller, and maybe some iBasso retailers may still have them in stock...
Well, after contacting Ron (HiFlight) about the ISL55002 chip, I finally got it up and running in my P4! He's really nice and supportive, and following his suggestion of using the ISL55002 in L/R with the AD797 chips as buffers and dummy ground chips, I achieved the kind of sound I was looking for from my P4, making it sound much like a tube amp, warm and musical, yet detailed with great bass performance! I'm very happy with this setup!