DT667 had acquired a set of Magnavox S-8756 2-way horn speakers off of a local EBAY seller almost a decade ago for $50.
These speakers feature a 15" 8 ohm CTS Alnico woofer and 10" x 4" 16 ohm Jensen midrange horn . The horn is an Alnico magnet type with phenolic diaphragm.
The crossover network was what appeared to be a 1st order with a 15 ohm resistor and 50 ohm rheostat for horn volume attenuation network.
To get the speakers going again, DT667 replaced both the 8uf high pass crossover caps and 50 ohm rheostats - they were blown.
The 16 ohm Jensen horns were replaced by 8 ohm Heppner versions of the same horn as one of the Jensen horns had a bad diaphragm.
After using these speakers for in a secondary system for years, DT667 wanted to upgrade the internal wiring , binding posts and crossovers to hear if subjective improvements could be realized with a modest investment of time and materials.
DT667 removed the woofers, horns, internal wires and crossover networks from both cabinets.
2 sets of Nakamichi style binding posts were installed on the back of each speaker.
Internal wiring was made directly from woofer and horn to binding posts so an external crossover could be connected. KnuKonceptz Kord 10AWG OFC stranded wire was used from this purpose.
Subjectively, the upgraded wiring and crossover parts made a substantial difference.
The vintage Magnavox speaker is efficient and smooth sounding with selected high resolution Qobuz audio streams.
DT667 has ordered some parts to build an upgraded passive 1st order crossover similar to the original Magnavox design. More on that project at a later time.