Yes - that's a Beomaster 900 RG Deluxe alright. Looks like teak finish. Nice set - I have one myself!
Edit - I sold one on eBay recently that I had repolished and generally cleaned up. It was in rosewood (which in my mind looks less forgiving in contemporary interiors, so therefore is probably less in terms of value than the teak ones) and I got something like £110 for it. That was a good deal for me though, believe me, as I've seen these sell for much less before! It really depends on the quality of the finish and how good your listing is - bad ones are not worth the petrol to collect in many people's opinion. The real collectable ones are the RG Compacts, as the styling is more contemporary, and you can really push them as sideboards should you list on eBay. One of these sold recently on eBay, and it was close to £200.
President, Beomaster 8000 Appreciation Society