As a producer who has no hardware,
these are some points in the video that I found applicable/interesting mainly for drums :
1. Hard compression : Ratio up to 8-9.
2. Distortion / Harmonics(thirds) : Achieved originally by putting sounds through tape machines in high levels.
3. Clipping : Cuts off transients / gives top end shine.
All of these processes seem to be basically pushing sounds to their fullest and giving them power, edge and warmth.
Also want to point out these are not rules, just a few things mentioned in the video. Learning the fundamentals is crucial.
I've edited the comment after feedbacks.

Dre also has good ears, which he developed as a DJ playing well mixed records on huge club systems. He simply knows what sounds good.

Dr Dre secrets to achieving great sounding mixes is rooted in being simple and not using too many instruments. He has got a lot of space in his tracks and that's why his drums sound full and knock hard.

I recorded Dre Day vocals and Doggy Dogg World using the Sony 800 then… 1992 - this is all after the fact. Aftermath stuff…Ask Dre who showed him his first SSL…🎉

So just chill till the next episode

Very few sounds + Quality mono sounds +  LCR mixing + SSL compression + tape saturation. Minimalism is what brings the cleaness of his sound.

Dre is also an engineer.   You gone win every time with that skill set coupled with producing.   Mixing.....no problem.

Mixing is literally magic, making sounds work together

Dr. Dre’s Mixing secret ——> Critical listening with trained ear

The sound of the SSL G mix bus compressor is magical. You can push the levels a bit while recording to analog tape and get beautiful character due to that adding saturation, and Tape naturally adds compression. Also running signals hot out of an analog desk can give you overdrive. You can't just slam it as hard as possible, all you'll get doing that is distorted mess, but  mix and mastering engineers can tell the difference between even the best sounding digital distortion, saturation, and compression vst's, and analog. When you work to train your ears to know the difference it's not even subtle.

Dr. Dre had a mind of 90s but his beats represented the future...

2001 is a wild album when you go back to it today and listen to the mix, loud af for something that was originally on CD

That Dre. Snare. You should hear that out of festival speakers.  Knocks you back a couple of steps every time it hits. It's like walking against a wind, trying to dance against that

Clean mixes are easy to achieve when you have very few tracks in them.

VST's on dr. dre's pc display:

1. Trillian (Spectrasonics)
2. Absynth (kontakt)
3. Massive (Kontatk)
4. Stylus RMX (Spectrasonics) this one is HIDDEN SAUCEEEE''''

Yes mixing in mono may be one of the most impostant points to his sound. And then push the limiter/clipper into oblivion when mastering

This was a hip hop history class for mixing geeks bro! Well done!💯💪🏿

Some good stuff in there. Something else dre does that was hinted at in one of the clips is spending most of his time mixing in mono. Ali talks about learning this from dre. It helps you zone in on the broader components of mixing before getting too focused on earcandy. Basicall levels, dynamics, and tonal balance/eq

That was pretty insightful. Solid mixing tips plus a history lesson is a nice departure from the straight up mixing tutorials all over YT. I see you George!