Yes my F120A in dave's Fonkensteen, unspeakably elegant bass, really I have no words to describe the tone, maybe effervescent/esprit/journeying. In comparison my TLonkens are extremely compact, deeper and more powerful.
On top Monitor Audio gold-anodized AlMg 3/4in car tweeter 4ohm 2.7uF.
Together with Lowther PM2A Ticonal in Fidelio, and Orgue P-610 Signature based on the Diatone classic -- early roll-off like the Fostex so I pair them with Correct P-610 created by the same engineer Mr Gong Xiaoming, stack dubbed alcor66.
Together with Lowther PM2A Ticonal in Fidelio, and Orgue P-610 Signature based on the Diatone classic -- early roll-off like the Fostex so I pair them with Correct P-610 created by the same engineer Mr Gong Xiaoming, stack dubbed alcor66.
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There's a Chinese idiom: "As the Pegasus crossed the sky" -- a sense of ease and freedom and strength.... (I'm listening to them.)
天马行空
Lobing Interference ~ Listening & Analysis...
I looked more carefully at lobing interference from the dual Onken (Fostex FE108EΣ) center channel in the NestMT. Lobing interference "always" happens in home audio but how significant is it? Driving two full range or mid-high drivers, separated at all, with the same signal will cause destructive lobing, and so will reflections from walls, etc.. The NestMT has 3 primary seats L, C, R at about 8' from the CC, and I measured and listened in all three, as well as other locations, with different distances between the dual Onken drivers of 20", 11" and 9". There's plenty more background and detail in my blog HERE but basically I found 3-6 dB of destructive lobing at ~4.5Hz and ~8KHz... to me it is barely audible, especially when driving all 9 full range drivers in the music theater. The top sweep in each graph is "on-axis" (always excellent) and the lower two are left & right seats by ~4ft abreast.
dave: Stand up, sit down. Move side to side, forward & backward will not likely be an issue until you get close.
I looked more carefully at lobing interference from the dual Onken (Fostex FE108EΣ) center channel in the NestMT. Lobing interference "always" happens in home audio but how significant is it? Driving two full range or mid-high drivers, separated at all, with the same signal will cause destructive lobing, and so will reflections from walls, etc.. The NestMT has 3 primary seats L, C, R at about 8' from the CC, and I measured and listened in all three, as well as other locations, with different distances between the dual Onken drivers of 20", 11" and 9". There's plenty more background and detail in my blog HERE but basically I found 3-6 dB of destructive lobing at ~4.5Hz and ~8KHz... to me it is barely audible, especially when driving all 9 full range drivers in the music theater. The top sweep in each graph is "on-axis" (always excellent) and the lower two are left & right seats by ~4ft abreast.
After LXing micor55 I decided to try it on alcor66. Alnico P-610 Signature in Orgue "artistic" BR/OB hybrid cab (after original Diatone) maybe A-/A+/N.A. (hi/mid/lo); Correct P-610 in same, A-/B+/B+; stacked vertically maybe A/A+/B+ from at least 5 meters away; LX alnico on top slightly tilted back, near-field first impressions A+/A+/B+. (My demerit scoring system for realism, perfect A+/A+/A+ zero score.) Artistic cab must be off -- port opening has too little "inner lip". Acoustic centers being aligned and very close together, they become merged and holographic with wide directivity wothout noticeable combing in the very near-field (as I moved my head/upper body around to test). Key to this pairing is the drivers' complementarity -- Mr Gong "cloned" the alnico following Japanese preference, then started his own company Correct with a ferrite version (the up-firing driver with decent bass and not-rolled-off highs, but lacking in mids).
micor55 LX https://www.diyaudio.com/community/threads/full-range-speaker-photo-gallery.65061/post-7675238
micor55 LX https://www.diyaudio.com/community/threads/full-range-speaker-photo-gallery.65061/post-7675238
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Is that anouther name for a folded wedge?
Nice half-wave midTL.
dave
I've had a chance to mess around with them, I thought that they were over stuffed, so I took all the stuffing out, but it was boxy, so I put a little back in now the bass drivers have had a chance to loosen up, I think they could do with a little more stuffing.
Using a graphic equaliser, I found a bit of a hump around the crossover point, so I tried a larger value inductor (now I'm glad that I didn't permanently mount the original chokes) and not only has it cured the hump, but they sound far more musical. I'm really happy with them, they sound very transparent and natural, and they really do sonically disappear, even without any steps taken to deal with the edge diffraction.