jacobhall

Dear Martin, Thank you so much for your thorough explanation! I am absolutely positive that I have XIb (even though the plate on the back of the cabinet says otherwise), since I have the original purchase documents and also the receipt from the NATO repair shop that repaired them once in 1976. As far as for the sound, I think they already sounds fabulous as they are, I managed to restore one of the front grille (left) and enjoying them a lot, I power them with a SAMSON Servo 120a, the signal feed comes from an analog mixer (in the picture YAMAHA MX12/4 to be replaced with Alle

Hi Martin, Thank you for your precious info. Is it possible the tweeters you are talking about are the phenolic type? The ones installed on the XIa and XIb were one of a kind and different from all the other tweeters that were installed in other Rectilinear models, probably because of the very low cross over frequency (1800 and 2000 Hz respectively). The tweeters matching all the characteristics of the original T-IIs are the Goldwood GT-25 (3.5') (link above), do you have any idea about how they sound or compare to the original or the Philips actually installed? Thank you very

Dear Friends, I've been doing a lot of research about a pair of speakers I got from mom, a pair of Rectilinear Research XIb. While doing so I stumbled upon Mr. Kent Xla restoration project on this forum's section and I thought it would be useful to ask about my speakers as well. While inspecting my set, after removing the front grille I realized that the tweeters were replaced with a pair of Philips AD 0160 T8 Mylar dome super tweeters. I was shocked to say the least. My purpose here is to find a proper replacement for these speakers and restore them to the original factory settings.