I enjoyed the video and some of the followup videos. My takeaways:
Strengths:
- The statement to take care of all the non-subtle stuff first. The players, instruments, rooms, arrangements, songs, performances, etc. This is all vastly more important than the preamps.
- Good preamps, even the Focusrite interface preamps, when used in a specified fashion are very linear in nature and closely resemble one another. Mr. Neve, EMI, Swettenham (Helios), Mr. Harrison, and many others were working towards a clean high-fidelity sound. As others have said, what we have in a couple hundred dollar interface today compared to 50-70 years is amazing. My Audient iD44 doesn't hold me back from making music and a Neve 31102 isn't going to make my music any better (unless I have an emotional connection to it that helps me play a bit better).
Weaknesses:
- Showing Chuck Ainlay as a single source of "no one" upping the gain and backing off the fader. This was certainly going to work well for the YT algorithm for clicks, but dismisses what so many engineers and performers actively do.
- Testing methods of sine waves and impulse responses show a part of the story. But us plucking, thumbing, picking, or slapping an E string doesn't generate a ~40hz tone with a simple rise and decay. It can help understand some things, but it is in no way musical.
Opportunities:
- "He's a performer". In order to get around the impedance mismatch and arguable methods, he just needed to employ a looper* after his guitar and bass. Play and loop a single performance, send it down the chain to the amplifier, record it with a mic into each preamp. No big deal. Nothing moves but the mic cable between the preamps. Same performance, same chain, over and over and over again. Check the nulls after the recording and hear the delta.
- Push the preamp and pull the fader . I know he "attempted" that in the video, but I think he wanted to show more clipping than "subtleties of saturation".
- Transients beyond slew rates. Transformers, tubes, FETs, OpAmps, and ICs all can show up differently on the transients. Again with a looper pedal, record the part through each type at various gain staging, level match, then null test and examine the waveforms for what happens as the preamp passes out of a linear response. Pointy? Rounded? Fattened?
I have three bass preamps in front of me, a BBE BMax, an Ampeg SVP-Pro, and a Mesa D-800+. When I find a sound on one I like, I will fire up the RTA, sweep around and get as close as possible on the other preamps (just for giggles). I can't always get an exact match, but it's close in the RTA and yet the texture is different between all three, and the Ampeg
always sounds louder even when peak matched. There is compression in the transients that the BBE and Mesa allow through. I can get the Mesa and the BBE really close to each other due to the EQ flexibility on the Mesa, but I often run the Mesa input up to where the yellow O/D flickers. The saturation is kicking in a little before the light appears and adds a nice texture that the BBE can't do.
So, it was fun entertainment, but with some fundamental flaws in the testing that would've helped. If the goal was just about using the equipment in a linear, controlled fashion like the Abbey Road/EMI White Coats would've approved, the job was sufficient. Buy what you like and can afford, and don't push the gain.
*Ok, someone is going yell when they read looper. Yes, the amplifier connected to the looper may behave differently than a passive guitar or bass straight into the amp; but this wasn't about that problem. It would at least be consistent for the preamp testing and another video could be made as to why loopers steal my tone that I can't find.
