In this live video: https://www.youtube.com/watch?v=RxBN5sYJbTA There's a Roland Alpha Juno 2 on the top tier and a Korg MicroKorg on the lower tier. The MicroKog has an arpeggiator and the Juno 2 does not, so you're most likely hearing the MK. Since you mentioned them using same or similar sounds a...

The LM-1 was probably more important in the beginning since it started the shift from unnatural, electronic "home organ" sounding drums to realistic samples of real drums. But at $5k, not many could afford it. Even the $3k LinnDrum and Oberheim DMX was only affordable to professionals. The $1k TR-80...

Casio HT-700 has user programmable bass line, drums and chords (different inversions).

Yes, you can use an external sequencer (hardware or software) to sequence the MoDX.

The bass sounds like an electric bass ran through a phase shifter with a slow LFO rate. Just Goggle'd it and the Wiki says bassist is Nathan East, so my bet is it's not a synth.

Lead sounds like one or two oscillators with saw waves with a mostly closed filter (25-50%).

According to SOLD listings on eBay and Reverb, working MemoryMoogs are selling between $5000 - $8000 USD.

It does not look like the Moog One has affected the sales price of MemMoogs.

Musician's Friend currently has both OB-6 keyboard and module in stock. I didn't do an extensive search, but did not find anyone selling the Tom Oberheim SEM. Tom's website only mentions the OB-6 synths and nothing about his SEM synths. I would assume he is no longer making them. If you get the chan...

At 0:27, I hear a "super saw" synth stab and an obnoxious vocal sample.

I skipped around in the video you posted and did not hear an alarm sound. Please tell us the time stamp (minute:seconds) that this sound occurs.

Not sure if it also works on the Odyssey, but there are patch point kits for the Avatar: http://www.belltonesynthworks.com/blog/2018/04/20/arp-avatar-retroaktiv-patch-bay-kit-installation-and-the-vintage-synth-mod-controversy/ If you use this site's search feature, you will find a "sticky" post with...

dead battery

By the mid 90s, drum machines were losing favor to samplers. If you look at photos of studios from that era, you'll see a rack full of Akai, Emu or Roland samplers. At that time, for the most part, the sounds that came drum machines were all you got, but many drum machines has slots to accept PCM RO...

if you're just interested in the Omni's strings sounds, check out the Waldorf Streichfett.

It's most likely a sampler. Probably an Akai or Roland S series (both used S in their model numbers of samplers).

There was a disk from the Roland S-50/550 sound library call Ooze and Oz with choir sounds like that and I could load it into my W-30 which reads S-50/550 sounds.

Any amplified speaker system will work. Most people use powered monitor speakers in their studios. The KRK Rokit 5 monitors are pretty popular since they are typically around $300 for a pair. When I was starting out in the 80s, I used a "boom box" with RCA inputs and later a HiFi system until I'd bu...