Roland's first ever synth was the SH-1000 and they've added around 20 to that line since then, including the SH-4d.
I've played most of them and one always stood out as my favourite having borrowed one some years ago.
The VCO's are a little different than traditional SH synths, they are syncable. There's also a mixer for all the audio signals which can be distorted for brash techno sounds. It's fun and easy to use but very powerful and perfect for screamin' techno sounds and effects.
It features many new functions like an external audio input, a ring modulator, syncable VCO's, more waveform shapes, white/pink noise generators and sample+hold. It has been used by INXS.
Unfortunately they're very rare and hard to find, but after a lucky encounter I managed to finally get one.
00:00 | Intro Jam
01:29 | The Roland SH-7
02:06 | Demo 1: Bit Coin
03:21 | Oscillators, Ring Mod & Mixer
06:23 | Demo 2: Remix Machine
07:52 | Filter, Mod, Envelopes
10:39 | Demo 3: Stop Continue
11:48 | Why is it rare?
13:03 | Who used it?
13:40 | Outro Jam