Well as the resident Abbey Road expert, (yes a big call, I know but Jeff Evans might actually back me on this one) I pretty know how every Beatle recording went down, both The Complete Beatles Recordings by Mark Lewisohn and Geoff Emericks book are the go to tomes for the budding young producer or engineer.
A lot of The Beatles majik was in the neumann microphones, which were tubes, The Beatles vox amps, which were solid into the original Redd (EMI made) mixing desk which was also tubes, so you got tube EQ's and limiters. Basically you were getting the perfect mix of odd and even harmonics or this is the theory I have bandied around. This changed with Abbey Road the album, when the Redd desk went solid state and you can hear it in the bass of Come Together and I Want You. Of course it was the music too, the tech stuff would have meant nothing without the music. Interestingly enough you can hear the same combo's in Pink Floyd's music and Queen's. So I think there must be something to the odd/even harmonic combo. Want further proof...Britpop Oasis and Blur, I think used a similar combo to get that sound. Hell Lenney Kravitz brought an EMI Redd desk, I'm not sure if it was solid or tube for that sound.
Now I'm musing, I would have been a great producer, if they still existed today. I know the techniques, (Ringo's towel drums, variespeed, tube harmonics, Pages...Bonham sound...Bowie's/Visconti Heroes' vocals. Fripp's measured feedback for Heroes, Frippertronics, on it goes oh even the technique used for Queens harmony vocals). Now here is the kicker, and I will be kicked...we can emulate it now all for a few hundred bucks and a DAW. I am in no doubt, that the various emulations, with tube and transistor front ends for the real stuff...vocals, guitars and drums, you can get that sound. It takes technique, historical understanding and perspective. And an understanding of digital recording technique, which is different to analogue but just the same in Sonar...Huh.
It's hard to emulate, or it was, analogue recording techniques in Pro Tools, no gain stage built into every channel. This is important because most of the time, and again I'm waiting to be kicked most of the analogue stuff was recorded to a level to get some sort of saturation. To get this in digital land a minimum of -6 db level is required...note a 6db level minimum. Using the gain on the channel when you go to mix, allows you to set the gain proper when you mix.
The Pro Channel console emulator is just as good for this too, I know the current paradigm of using it last is all the rage...but I think this is a mistake, I use it first. This is because if you were going to feed a track out of a mixer for recording then it would be first in signal chain. Actually it's not a mistake to use it last, it just depends on which paradigm your using. Because I am using the mix as you go technique, rather than mix it off the tape technique, I'm aiming for a different sound. Hmm I just worked this out. Again musing.
Of course you guys are probably all wondering about headroom on the master buss, particularly if I am recording or even bouncing or freezing, this is where the analogue idea comes in...its all about summing. 30 odd tracks means you have to sum about -15 db on the master buss for the appropriate headroom. It works too. But I will leave it to the boffins to fight it out and tell me I'm Capt chump. ;)
Ben