Still think a Speck XtraMix 6 is exactly what you need…..

Some of the more modern ‘midi boxes’ now include usb alongside din midi so you can connect both to a single midi interface.

Tried Synth Prof? He’s ‘next door’ in west Suffolk.

Most popular doesn’t mean best…or most suitable to your needs.

You could ask below (ex A&H engineer)

http://ab-electronics.net/about/

They did that with a few products - Unisyn for example; selling things way past compatibility with current OS’s. Don't get me wrong it’s ok to do that - useful for those who run older systems for ages, but it should be marketed as such and priced accordingly.

Cheers…probably a bit vague! Not suggesting A&H as they won’t do it.

The OP asked for a South London option but as Adrian Bowditch is in Cornwall I assumed the OP was prepared to travel or post the item. If so, is Sheffield an option? Etc

I used Adrian Bowditch at the turn of the year so might be worth another try.

If you were prepared to ship or travel to Cornwall there is also Nightingale Audio in Sheffield - another A&H specialist.

https://www.nightingale-audio.co.uk/repairs.html

Now live on Anderton's for preorder.....£4799!

https://www.andertons.co.uk/oberheim-ob ... 995a6812a1

Used to love my N12 but I think it is a lot a hassle unless you like running windows (and many do!).

I guess you're right, but going down the full analog route, would involve the old school way of working again, with a physical soundcard with 24 outs (of one exists)? and cabling a loom for 24 track outs from DAW to physical In's on the desk If you did go this way, I can recommend a Presonus Quantu...

Here you go:

https://uk.yamaha.com/en/support/update ... atest.html