Question Altec 861 enclosure

[MartinV56]

Hi,

Which Altec driver is recommended for the 861 enclosure, (1968 Enclosure Design Guide ) Thanks,

[moldyoldy]

A 420 (A/Y) Biflex with a small throwaway tweeter in your 861 (A/B) box became the 870 (A/B) system;

[MartinV56]

Thanks, the Madrid and first santana ah and the 870B, again thanks, biflex 420