[quote="sq225917, post: 739791"]How much do the drivers cost? £10k all in? Then maybe £5k for the metalwork and cabinetry. £15k per + development costs over a couple of years. I'd say that's a 100k speaker.[/QUOTE] The driver cost will be much higher than that, as will the cabinet cost & bronze castings. (The TAD HF drivers [I]may[/I] start out as off the shelf items but the new production Vitavox units definitely aren't!) If you don't agree, look closer or better still, go & see them. They aren't a mass produced 'product' in the sense that something like a £100K Grande Utopia EM is. I don't know what the multiple is and it doesn't matter either. These probably aren't intended for 'audiophiles' anyway. The simple answer, if you want this kind of performance, is to make your own. Don't know how or can't be bothered? Then don't moan about these. start here... [URL]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150379495924&ssPageName=ADME:B:SS:GB:1123[/URL]