I've been listening to one of the "Superharps" albums with the late Carey Bell on it and noticed that he gets a sound like a Leslie speaker on some of the tracks. I reckoned it couldn't be from Carey himself, so I searched harp L's archive and found that Carey had been known to use a Cordovox rotating speaker cabinet, in conjunction with his regular amp. It's quite a unique sound, and I decided I'd like to use it occasionly (not too much...). I spotted a Danelectro "Rocky Road" rotary speaker sim pedal yesterday in the reduced section of a music shop, at a reasonable price and thought I'd give it a go.
I had to do the "gain mod" on it so it has unity gain, without it there is a 3dB boost even with the gain control right down. But it's an interesting effect and I'm looking forward to trying it out "live"
