Well I bought the Tannoy DC2000 speakers a few weeks ago on eBay, and they are becoming hard to find, after reading quite a lot on speakers in general, I came across the history of the Tannoy dual concentric speaker driver. I couldn't stop reading, anyway once I got them and set them up, I was blown away by the quality of them, very clear vocal, excellent bass, and detail is well. I am using a Nad 3130 amp which is quite old ,but has a great sound, I found out that to get the most out of these speakers a higher quality of amp would be needed, maybe a valve amp, but for now I can only afford my Nad, anyway for the age of these speakers they are very impressive and would give the £500.00 speakers of today a run for there money, specs are as follows 250 watts rms,6 ohms,93db sensitivity ,2x8inch drivers,1 is dual concentric. Well that's it if you're looking for a high quality pair of speakers I would recommend these, they just don't make them like this anymore, thanks for spending time to read my review, regards Nick.