Jloveys,
The friend borrowing the Tron Seven has a system cobbled together from an ElectroVoice system (15" woofer with a folded horn, horn tweeter) and a huge multicellular midrange horn and compression driver of different manufacture. He has a big range of amplifiers. I heard the Tron mated to a custom-made tube linestage feeding a custom-made pushpull 45 amp, and on a different day, the Tron feeding a Levinson No. 32 linestage and a customized commercial solidstate amplifier. The phono cartridge was a Transfiguration Orpheus.
The owner of the Tron Seven has an older pair of JBL speakers and the Tron Jubilate amp and the Ortofon Per Windfeld cartridge.