I use these speakers from their second hand to purchase a recording studio in Paris in the early 80's. Recently restored, relaquées generously rewired and remembranées, these speakers offer a performance record need to be coupled to an amplifier with very low power sounds warm, or addition of an equalizer as to blend mediums may be too high present or a tube that compensates for the high reactivity of these speakers. The result is so rich, balanced with exceptionally low linear where many other boomers begin to liquefy ...
I have used with a Revox A78, a Luxman LV105 Hybrid amp + preamp an ONKYO 502 and others. By far the Luxman has offered the best balance, just before the Revox. An ADC Sound Shaper II has fully absorbed the excess presence in the mids treble without notable alteration of the signal.

SOUNDS

Once corrected the staging frequency break may seem questionable origin, which is very simple thanks to an equalization offset well studied, the obvious qualities of the speakers and the volume of these speakers offer generous feelings which few can claim even almost 40 years after their design and then unanimously they created in studios around the world ...

OVERALL OPINION

With a little experimentation and a judicious choice of the coupling of these speakers, they are proving to be both the most attractive and most spectacular of the many combinations that I had the chance to try to use audiophile which does not seem to be the primary purpose of these queens vintage studio ...
A remake? Without hesitation, but since 4320 have become extremely rare, I'll just keep to my own interest as their rare generosity typical of the U.S. rise ...