Best audio and visual for concert films

The best source IMO are blueray discs. You will need to get a blueray player with RCA outs to connect to your preamp OR get a preamp with an HDMI connection.

I have been ripping a ton of concerts lately, sound fantastic.

Thanks. Are you “ripping” them to storage?

Yes, to a NAS, if you want to create a library and a "concert vault" consider getting a Zidoo player that will have storage as well as play everything. This looks like a good choice:

https://summithifiusa.com/products/zidoo-uhd5000

Can you download a blueray quality directly to a NAS?

Skip the blueray?

Let’s ask it another way, where can you great concerts other than blueray. You can stream a lot of great content. The Zidoo has an android OS and you can get geat apps for concert streaming. They won’t have the dynamics of a blueray but thre are tons of content, they add new content all the time, and its cheap:

1) Qello Stingray

2) Plex (has various concert channels that are FREE)

3) Berlin Philharmonic

4) Tidal (streams videos of concerts)

5) Nugs.net