Oberheim OB-X8 vs OB-Xa - all original factory presets

video upload by synthlegends

"In this video I played all factory presets of the OB-Xa, which are in the OB-X8 as well. I don't know, if they were accurately reprogrammed or just took as wav file into the cassette interface of the OB-X8. Most were really spot on. Here an there they are not, so it is mandatory to tweak a bit, like modulation rate, filter and envelopes. Some sounds were not equal in volume, I had to adjust.
I recorded all in Mono using the Mono out of the OB-Xa and Stereo out pair (but with mono setting) from the OB-X8. The mono out has in my unit some hum. I will check it out with the distributor or I don't know what happened here. It's not much, but it's there. My unit is only borrowed for a review I have to do for a german music magazine. I am really impressed by the OB-X8 and it's a great substitute for the very rare and expensive vintage units. The sound is around 90 to 95 percent perfect. Some minimal variances you can hear in the original, maybe due to perfect circuit of the smd-chips instead of old through hole technology with lots of calibration pots (the OB-Xa hat around 150 of them!).
Also here no FX or processing used."