Why do speaker makers do it? Why do they traverse the safe waters of single driver or two way speaker design and then insist upon plunging headlong into the swamp that is a 3 way crossover. In our business, we carry...errr, one 3 way....this one.
The reason is simple. We prize coherence in music reproduction above all else. Coherence is for us, the factor that is most evident on the road to believability. Though there are some exquisite three ways, this tends to be the arena where they go legs up.
So once again I had a preconceived notion and once again Massimo Costa has an answer. It's in his transmission line, and in the way in which he employs his bass cabinet. Something about no standing waves and a literal metallic enclosure inside the speakers cabinet...a cabinet within a cabinet. It's also why it's quite a bit more expensive than his other offerings. It had to be, because Massimo will sacrifice anything except his due to music. If to make a proper speaker that covers 30 to 20 with integrity, it had cost Massimo $100k, then I imagine we'd be looking at a $150,000 speaker.
Fortunately, he figured it out for slightly less.
Once more I stand corrected, and once more I'm quite happy about it.
System: floor standing three way, linear phase
Loading: transmission line filtered by resonators (Helmholine System)
Drivers: 2 x 6.5” ceramic woofers, 5” ceramic midrange, 1.2'' ceramic tweeter
Crossover: acoustic first order
Nominal impedance: 8 ohm
Sensitivity: 89 dB SPL (2.83V/1m)
Frequency response: 35 - 20.000 Hz
Dimensions: 25 x 62 x 115 cm
Weight: 65 kg net each
Finish: striped ebony, striped walnut