I owned for several years a good old Roland A-880 and I sold it for 80 euros in trade for a Roland MKS-30.
I have to say it's a very straightforward patchbay; if you don't need a computer, just a patchbay to avoid long chains in MIDI THRU, well it does its job.
It is a breeze to assign input and outputs from the front panel buttons, just remember you can only "MIX" two inputs at time and no more. It means that if you like to play one master keyboard and a sequencer you cannot input and merge other MIDI datas.
I sold it for two reasons:
- the first is that I used it hooked to my laptop, with a MOTU Fastlane, and I had serious troubles with System Exlusive messages to my gears. (Sound Diver supports A-880 and allows the user to reproduce the physical setup, altough it can be quite difficoult to make it work as it should in this configuration)
- the second is that it wasn't very fast in MIDI response and, considering it was after a MIDI interface, the MIDI "latency" was a bit annoying.
If you use a more modern 8x8 MIDI interface working standalone too you have some advantages like:
- one in/out more (with the A-880 one input/output was used by the computer)
- lower latency
- computer assignament for quick and visual setup
I have recently purchased a second hand MOTU MidiTimepiece AV, which also has a LCD display. I paid 180 $ plus shipping from US.
MOTU interfaces have very good drivers, are reliable and come with a 110-220 V switch.
(It is not powered by USB though).
It works standalone too and it's programmable from the front panel.
Highly reccomended
P.