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In Reply to: RE: Tympani T-IV posted by jrdoe on May 27, 2016 at 10:26:56
There is no new technology in the 3.7 so far as I know. It is just a more refined and more coherent speaker then its predecessors.
The TIV and IVa are in a different class. They make 3.x models seem a bit toy like. The appropriate comparison is the 20.1 or 20.7.
Structurally, the separate mid/tweeter panel makes for an advantage in clarity that is very significant compared to any single unit speaker.
The investment in maintenance is peanuts compared to what you get. The potential of the TIV IVa speaker with mods and bracing is for a top notch speaker comparable to a flagship model from one of the well regarded high end names and likely exceeding them in some aspects. The only real missing ingredient in a fully tweaked out TIV is the bottom octave extension and dynamics. In a larger room it needs subwoofers.
The midrange is not as good as that of the 20.1 and 20.7 but can be replaced with a line of BG Neo8 drivers as I have done. The crossover can be modified to make better use of the Neo drivers and relieve the tweeter from some burden. With a linear phase 1st order crossover and time alignment of the drivers performance and coherence is amazing In this way I have managed to obtain a speaker that competes well with some of the Stereophile Class A full range speakers like the Focal Nova Utopia, the Magico Q5 the Wilson WATT/Puppy based designs, the Revel Studio and Salon and the larger Vandersteens, .
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Follow Ups:
"The midrange is not as good as that of the 20.1 and 20.7 but can be replaced with a line of BG Neo8 drivers as I have done."
So are you doing the equivalent of comparing two Ford models with each other, one of which has a Lexus engine?
jrdoe wrote:
"Oh, and these are IV's, not IVa's. Doesn't appear there's much difference, though."
There are differences. Only the ribbons are the same, almost. Early T-IVa had identical ribbons, later replaced with the 2 Ohm+resistor. Bass drivers have different placement of the buttons, tuning too. Mids are shorter in the IV. Crossovers are different. The IV had a short production run.
Well, I guess I am. The Push pull driver in the 20.x models is definitely a better performer than the Tympani mids and 3.x mids particularly by not compressing at even rather loud levels. The BG Neo8 are no different so can be substituted easily in the TIV models and compared.
I think it is a worthwhile effort to compare and the alternative is no info.
Ummmm....now I'm getting nervous the seller will back out. Wow! I can't wait to hear these. Thank you!
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