My guess about the relatively low volume has to do with the efficiency of the speaker. Some of those old ELACs could be as low as 90dB at 1W/1M. Compare that to a typical modern speaker like a Vintage 30 at 100dB and that might explain what you are hearing (hah, modern speaker, Vintage 30. Ironic). 10dB is pretty huge.
Never thought I'd buy another amp.........
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Cool radio, oops, amp. Enjoy. Lots of us envious.
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