Ορισμένες σκέψεις από το noaudiophile για τα συγκεκριμένα... φτερά του Ικάρου.
Notes on cheap amplification with the ELAC UB5:
I tried the speakers with the SMSL SA-50, a pretty good amp that is dirt cheap. The speakers sounded worse with the Class-D SMSL - more crunch to the treble and less definition, but did power them easily to the point where the speaker starts to sound bad.
Living Room Listening Impressions:
The same limitation happened in the same spot.
90dB on the couch was all I could get out of them before they transform into a public address system.
I would not recommend these speakers for Home theater use.
All cut based correction. Took a little bit out of the upper bass, and a bunch out of the midrange around 700Hz and 2k. This lowering of the midrange netted a slight gain in the output of the speaker. It will play to about 95dB now. The sound still is a little bit sterile and too detailed for my taste, but there is no denying this is a big improvement.
Final thoughts:
I asked ELAC
why the speaker shits the bed is such a unique way at 92dB, and did not get a response. My instinct here is that
this limitation is because of driver design, maybe not enough magnet or copper on the midrange. I requested rear photos of the coaxial driver, but did not get them from ELAC. I only have the limited knowledge of an obsessed hobbyist, but I don't think a crossover component would create this issue. As such, I don't think the all active DSP version of the UB5 that ELAC has planned for future release will solve this problem. If anyone out there has a better idea of what is going on with the speaker let me know.
Back to the story of Daedalus and Icarus. Icarus's wings were amazing in design, but limited. If only he would not have flown so close to the sun, the story would have a happy ending. The ELAC UB5 speakers are technical marvels, that Jones and the team at ELAC should be proud of,
but will perform well as long as you don't turn them up too much.
http://noaudiophile.com/ELAC_UB5_Listening_Impressions/
Και εδώ το soundandvision κάνει αναφορά στην εμπέδηση:
The UB5’s listening-window response (a five-point average of axial and +/–15-degree horizontal and vertical responses) measures +1.98/–3.18 decibels from 200 hertz to 10 kilohertz. The –3dB point is at 58 Hz, and the –6dB point is at 42 Hz. Impedance reaches a minimum of 4.05 ohms at 132 Hz and a phase angle of –22.69 degrees at 73 Hz.
The UC5’s listening-window response measures +3.06/–3.41 dB from 200 Hz to 10 kHz. An average of axial and +/–15-degree horizontal responses measures +3.11/–2.77 dB from 200 Hz to 10 kHz. The –3dB point is at 54 Hz, and the –6dB point is at 46 Hz. Impedance reaches a minimum of 4.76 ohms at 463 Hz and a phase angle of –29.08 degrees at 80 Hz.
https://www.soundandvision.com/content/elac-uni-fi-ub5-speaker-system-review-test-bench
