Hedlund Horn loudspeakers, without speakers, with litz cabling cable and beautiful front cover. Suitable for the EX series Lowther, but you can work with almost all lowther drivers.
Adding bags of sealed inert material, it is possible to change the volume of the compression chamber and obtain different responses in the low end. The cabinet is in birch plywood and MDF, the construction is by audio ikarus. 2000 euros the couple with retreat in person.