They record at their self-styled West Norwood Cassette Library studio, which they describe in a Gutterbreakz interview as being 'located in sunny SE27, London, where the streets have no lightbulbs and the pavements are lined with dog excrement and KFC aftermath. The ‘studio’ itself is a cosy basement with everything we need in one room - if you look carefully, you’ll find boxes of old cassettes waiting to be archived on to microfiche.... Inside it's like a big, orange, womb-like bubble with every creature comfort one could wish for. A home from home - if your home is Saturn'.
Reviewing this at Blissblog, Simon Reynolds mentions that 'West Norwood/West Dulwich was where I lived for about a year when I first moved to London from Oxford. And I recall that the local library's unusually good record section was one of the few redeeming things about the area (at least in 1986; maybe it's improved). That and the excellently serene cemetery'.
Strangely enough I actually worked in that library when I first moved down to London (to Brixton in January 1987) so presumably may have crossed paths with Simon Reynolds. The record collection was indeed excellent thanks largely to a librarian called Tad who was a leading authority on English psychedelia and made sure he ordered lots of obscurities in line with his taste. I remember it was well-stocked with all the Paisley Underground bands (like Green on Red and Rain Parade), Nick Drake etc. As for the original West Norwood cassette library - yes they still had cassettes in libraries in those far off days - I think I've still got a copy somewhere I copied from there of the excellent industrial compilation If you can't please yourself you can't please your soul. In the summer I used to spend my lunchbreaks in West Norwood Cemetery - there really wasn't much else to do. There was a bit of excitement that year when a multi-million pound cocaine dealing operation was found to be operating from there, storing the gear in the catacombs.
I had a couple of weird nights out in West Norwood though - in August 1993 I went to a rave in a gym across the road from the library. Then in 1994/95 I was listening to a South London pirate radio station and they put a call out for a party in West Norwood. I phoned up and got the address (and of course 'a big shout out to Neil and the Brixton massive') and ended up with my girlfriend in the basement of a restaurant on Norwood High Street dancing to garage. Still that Norwood/Croydon scene has kept ticking over the years like a musical micro-climate occasionally erupting into wider London nightlife - with dubstep being the most obvious example.