Other than lack of bass extention, what don't you like about the sound of your 988s? I have 989s and LOVE them. They play a little louder overall than the 988s and have another half-octave or so of bass extention and power. IOW, in the bottom 2 octaves, at the same bass frequency the 989s have a bit more energy (and in the bottom octave, significantly more energy) than the 988s. You already own one of the finest-souding--coherent, transparent, relatively uncolored, spacious, etc.) loudspeakers in the world (within their limits). I believe it'll be very difficult to find a coned speaker with lots-better bass power AND the transparency and coherency of the Quads.
I also believe that MANY of us will disagree with me! :-)
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I also believe that MANY of us will disagree with me! :-)
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