Can anyone possibly help me? I’m currently in the process of building some speakers and I’m looking for some high quality aluminium (or titanium) concaved mid / base drivers, Ideally 6 inch’s diameter. I also need to find a good quality aluminium dome (or concaved) tweeters which would be compatible with the mid / base driver. I know swan speaker (HIVI) produce some however the gold finish would work with the over all look of my finished speakers. I’ve seen loads of other company’s on the market using these but can’t find a supplier my self. I’d be really grateful if anyone could offer some advice. Thanks Bruce