Quote:
Originally Posted by Whaam68
I think they were a semi- transmission line design....yours look like they've been up ended & what would have been the position of the full range driver is now on the bottom?....not sure if practical but I'd be tempted to try & put these back the way they were designed. Supposed to be very sensitive and good for valves. Somewhere I have a booklet with a number of 60's DIY designs including this one. I've seen a couple of unmolested sets come & go on ebay over the years. Unlike a lot of speakers of this vintage they don't look like they take up too much room!
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From the link in your post above it looks like they were intended to be positioned horizontally on legs - maybe for use in a mono set-up? A stereo pair would take up a lot of space that way round and it would need a very understanding 'er indoors' to put up with that! Yes, the main drivers are Elac - as Edward predicted. I have by-passed the x-over on one and that seems to have improved performance on the whole. The interior angled baffle is there - so they probably are a kind of transmission line. The bass doesn't achieve the Marianna Trench-like lows of my Radfords but it is accurate and not boomy. Not sure what to with them once I have finished playing about (I have too many loudspeakers already).
