Of course you could null say a left vs right bus in real time. from several tests you could identify which are more different from the others. I ASSume the ones that are more like each other are the more accurate. JR
I don't hear any difference.I guess if there are, they are buried by the transformer's response and by the mp3 encoding (and by my aging ears).
what I can feelac sound - very lively APP992 - a bit dull less lively BB2521 phillips - very acuratedBB2521 TI - very acurated I couldn't tell any difference with the phillipsGAR1731 - a bit smooth close to the ac soundThe mix sound fantastic!
I realy prefer the APP992!Yes it is dark for me too, but don´t know. Just rocks to my ears.
Quote from: 12afael on August 27, 2015, 02:08:12 PMwhat I can feelac sound - very lively APP992 - a bit dull less lively BB2521 phillips - very acuratedBB2521 TI - very acurated I couldn't tell any difference with the phillipsGAR1731 - a bit smooth close to the ac soundThe mix sound fantastic!Interesting, keep it coming! I'll refrain from posting what I think (I've been reviewing these op amps for months now, so I know pretty well what to listen for). And thanks, great you like it! The multitrack is pretty good (despite the excessive noise and bleed).
I wonder whether the differences you hear are actually due to the op amps themselves or just their reaction to the circuit in which they are placed? Using regular op amps in a virtual earth bus can introduce all sorts of artefacts into the mix (check out Steve Dove's excellent articles on this topic). Stray capacitances can make a lot of difference. I don't know why more designs do not use a Transamp topology for the VE mixer op amp as this avoids most of the problems you get with regular op amps used as VE mixers.CheersIan
Unfortunately it looks like Paul Buff is sadly no longer with us. Do you happen to have a link/copy to/of his application notes?CheersIan
OK, so I'm late to the party but here's my 2 cents if you are listening.The GAR stands out above them all as the smoothest, most vintage sounding and the one I like the sound of.The AC has that hyper realism that seems to be all the rage with the kids. It's like a poke in the ear with a sharp stick to me.The APP is the second best of the bunch, pleasant but not as smooth as the GAR.The other 2 were too close to tell much difference although both were good.Not a bad one in the bunch but I gotta go with the GAR.By the way cool song, unique sound and a nice mixing job.