Kent Sandvik has released Kent Loop Collection Vol 6 – EMS Synthi, a free collection of synth loops in WAV format.
EMS Synthi was a portable synthesizer done in the early seventies by EMS, used by Pink Floyd, Todd Rundgren, Steve Hillage and other similar artist. This volume contains 50 synthi-like loops made with XILS Labs XILX 3 plug-in in the tradition of synthi-like sounds, sequencer patterns, odd bleeps, effects, as well as leads and bass lines.
Some of the loops use a compressor but most of them are clean so you could experiment with various compressor and other effect settings.
Audio demos:
More info:
Kent Loop Collection Vol 6 – EMS Synthi