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Tannoy HF is fundamentally and fatally flawed

Hi Mr Blue Sky

I have 15 inch Golds in corner GRFs. They are nice, but the HF on all Tannoy dual concentrics is terminally bad. The problem is the nature of the horn used by the HF driver. It breaks up heavily after approx 10kHz. Not only that, it droops significantly. So Tannoy put in a HF boost ("Energy" and "Treble" controls) on all DCs to lift the HF, which makes it worse. Now you get even more ragged HF response. Just look at a response plot of a Tannoy (I've seen some around on the net) and you'll know what I mean.

I recently built a horn system using a separate tweeeter (JBL 2404H) above 5kHz, and I was astounded at the smoothness and response compared to my Tannoys.

Cheers. Doug


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