Western Electric 12a and 13a « combo »

In the heart of Switzerland a 13Audio replica horn setup has been installed for what I can call a “very keen” listener “I” who is very happy playing mono even from stereo recordings, good man!

I is also into his whiskey as I discovered when I opened the door behind the horns, does that help bass in anyway? Time will tell!

13Audio will design a bespoke bass that will be big yet concealed in the room. Typically with this setup we are looking at one and half or two octave below the 13a. It’s just that those octaves need to be as fast and open to match and big 12a and 13a and deliver nothing nasty into incomparable midrange sound that only the we12a and 13a deliver.

The two horns work simultaneously enjoying the same signal yet attenuated by about 3db versus the 597a tweeter. This is achieved via a 13Audio crossover network that has no resistors or autoformers in the signal path. The crossover is built with original 1940 western electric capacitors checked and selected. The air coil is handmade by 13Audio. Wires are bespoke made by 13audio.

My friend “I” was fortunate enough to score a pair of original 555 drivers whilst I was crafting his horns…these were serviced by 13Audio with replacement diaphragms fitted they sing as they should! 597a is from GIP. The tungar is a motiograph lodged into a 13Audio enclosure (here)

This is a sort of plug and play vintage horn system. Setting up was a breeze in a well balanced room.

Any weak link or shortcoming in the upstream components is discovered straight away and I is aware that tuning the system to his likes will take sometime, but worth it !

All fun….

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