There is a saying in holland , a wise man learns from others mistakes , only a fool learns from his own.
Any technology essentially developes from work that others did before them and perfect it to a larger degree , but i also agree a bit on that the larger ntt models have maybe to much incommon with the big wilsons , but it wouldnt stop me from buying, proof of the pudding is in the eating.
Also from the specs quite different , ,very high efficiency model , the choice of the
tweeter limits to a great deal the overal efficiency of the speaker , on a 98 db a fostex would qualify , but they use also focal , a td 5 which has a eff of 94,5 db iirc, that might also be the reason the xlf(sodft dome ) is 94 db instead of the 95 db X 2
Look forward what you think of my design , got the first 3 D computer graphic iso metric models in from the MTM today
My mistake : they both use focal bass speakers (audiom series?) but the ntt uses 2 15 inchers and at one time they also used fostex in their topmodel
3 - Way Bi-wire or
4 - Way Bi-amp
Drivers: 2 -15" Focal W.2 Rear-ported
2 - 6" .5 Sealed Focal 6WM
1 - Inverted Dome Sealed Focal TD-5
Freq Response: +/- 3db 16Hz - 45kHz Sensitivity: 2.83/1m at 98db
Imp: 8 Ohm rolls down to 4 Ohm Crossover: 16Hz / 250Hz / 45kHz
Power Needs: 15W - 1000W
Dimensions: 70" H x 18.5" W x 31.5" D
Weight: 1245 lbs each
Shipping weight with 4 boxes: 2700 lbs
I didnt see that , that indeed looks to be wrong , the focal tweeter (TD 5 )starts breaking up seriously when you get close to 20 khz as most metal domes do , and a 15 inch woofer crossing over at 16 hz ??? X -sing over to what? certainly not the 6,5 inch mid unit which will not play that low
Here are other specs with curious crossover points from the NTT Audiolab website:
101 Mkll Specifications
Configuration: 3-way floor standing, Bi wire or 4-way bi-amp Drivers: 2–15”W Audiom.2 Back-ported. 2–6.5 Accuton Ceramic and 1. Fostex T500MKII Frequency Response: 15.2Hz – 90 kHz +/- 3db Sensitivity: 2.83/1m at 98db to 115db Impedance: 8 Ohm rolls down +/- 4 Ohm and 2 Ohm Crossover: 14Hz / 240Hz / 92kHz
Recommended: 10W – 1000W Color: Any automobile Paint Color Dimension: 71.2” H x 18.5” W x 32.5” D Weight: 1315 lbs each Shipping weight with 4 wood crates: 2960 lbs+Accessories Made in the USA
? ? ? ? ? The HF crossover point is higher than speced frequency response and the LF crossover point is below it.
Who the hell do they have proof-reading their copy?
That looks indeed wrong to me as well , the 15 inch woofer minus 3 db point is 15,2 hz , therefore it would be something like -3,5 db at 14 hz which is the roll off of that woofer and not the x overpoint .
The 240 hz would be a natural x point for the woofers to give over to the mids , there seems to be missing the x over point to the tweeter .
14 hz and 92 khz are the limits for the output of the system not the x overpoints
By the way, with some accutonmids one could indeed built a 98 db eff speaker so that could be right , i played with the idea myself but i dont think accton/ceramics/diamond material is the most natural sounding in the end . http://www.accuton.de/drivers/detail.php?driver=14&matID=4&appID=3
One reason also being the FR behaviour of that high eff unit, if you click on Frequency response at the bottom you ll see it ,not exactly neutral to start with
Hi
I have the NTT AUDIOLAB 101S for 6 years now. Compared with Wilson Alexandria , NTT AUDIOLAB 101S has a very different sound .
I have the biggest model driving with Pass 200.5’s, Conrad GAT, AR CD-8, MIT Oracle IC’s, Transparent MM1 Ref SC’s, and all top of line Synergistic PC’s.
These speakers are quite large (over 1200 lbs. each) and require a large room for the best but you can get the smaller version that works for your room. These will not only give you WOW factors for the look but the sound is unbelievably impressive. The clarity, the resolution (each instrument and each note are crisply), and instruments separation (you’ll hear the drummer to the far left, while the piano plays to the right, and the singer is dead on center stage) are top notch but what struck me the most part was the spacious and airy with the REVERBERATION effect. This gave me a sense of being in a wide concert hall with a very tall ceiling, almost like a church sound effect.
Secondly I was blown away by just how effortless they sound with any types of music from the lowest octaves on up through the highest of highs. The sound and sound pressure levels are just inspiring, dynamically is one of the best, the bass reproduction has speed and notes that most of anything out there cannot match. You can crank this speaker to crushing sound pressure levels and it will never lose its grip and remain fidelity. This is also true at low volume.
Finally, if you are looking for towering soundstage, look no further. Its soundstage is wide and deep, closer to the scale of a large orchestra or a full organ.
My vote would be to send them to Valin, schlep them up the stairs to his listening room, and wait to see if his house collapses. If it doesn't, I might be tempted to go hear them somewhere.
