FWIW, here was my experience auditioning electrostats:
-Prodigy, at least the way the dealer set it up, was so fatiguing I had to stop the demo after 10 minutes. Sure, the soundstage was impressive, and they had plenty of resolution, but they were overbearing in both the treble and bass. Electronics were McIntosh solid state. The room was probably too small for them.
-Quad 988: nice sound, enough bass for my taste, but just a tick to the bright side. It took me about 45 minutes of careful listening to decide this.
-another electrostat you did not mention: The Soundlab U1. To me these were the most natural sounding, and they had impressive bass power and clarity. The soundstage was not as focused as the Quad's.
-Prodigy, at least the way the dealer set it up, was so fatiguing I had to stop the demo after 10 minutes. Sure, the soundstage was impressive, and they had plenty of resolution, but they were overbearing in both the treble and bass. Electronics were McIntosh solid state. The room was probably too small for them.
-Quad 988: nice sound, enough bass for my taste, but just a tick to the bright side. It took me about 45 minutes of careful listening to decide this.
-another electrostat you did not mention: The Soundlab U1. To me these were the most natural sounding, and they had impressive bass power and clarity. The soundstage was not as focused as the Quad's.