https://www.amazon.com/gp/customer-reviews/R2LFHSEDYQIHTM/ref=cm_cr_othr_d_rvw_ttl?ie=UTF8&ASIN=B071P6KQZXWonderful Speakers
By Mike Anderson December 22, 2018
These speakers sound fantastic, look wonderful, and shine at reproducing guitar. The bass is significantly more than I was expecting and on par, but much cleaner, than my old Spica TC-50's. As stated by everyone else the imaging is ridiculously good and really fun to play with. I tried out one of the main competitors (rhymes with "dorfdale") and found these more suited to my musical taste which is along the lines of Jack Johnson, Rush, and movies. Of course considered the UB5 [maty: ELAC] but settled on these. Only thing to note is that the tweeters took about an hour to warm up so dont freak out when you first set them up.
The
problem is not the tweeter is the
coaxial speakers suspension. New is very rigid -> they sound bright because the bass are small not because the tweeter is
cold.
It seems that it is confirmed that they suffer from the same as the previous
Qx00 series:
* furniture vibrations
(thin DM walls), like a lot of spekers to spend money: in wood and, above all, in logistics.
*
very rigid speaker suspension, they need a long
burn-out.
The
5.25" Uni-Q coaxial speaker is very good but expensive too.
Knowing the weaknesses, with patience first and spending a little money on refining the first order filters and adding mass we will have excellent speakers. And on some supports, filled with cheap sand
(not from the beach, because salt corrodes), better than on a shelf. Cheap construction sand
-like mines- or silica for pets.
Of course, having
rear bass-reflex will need space. How much? I do not know.
KEF LS50 passive need about
90 cm / 30-35" of distance from the three walls, that is why many sound bad in their homes, because they have not bothered to inform themselves properly! Well, and only
79 Hz at -3 dB. To have more bass, they approach to walls and lose their
magic. They need a
subwoofer to play all kind of music.
KEF LS50 wireless/active have a
DSP which seems to improve the sound on a shelf and the few bass. Btw:
tweeter with class AB and
woofer with class D.
frequency response
(±3dB) Measured at 85dB/1m
45Hz – 28kHz (More bass extension)
50Hz – 28kHz (Standard)
61Hz – 28kHz (Less bass extension)
Depending on speaker settings <- DSP
WEIGHT
Left Speaker 10.0kg (22.0lbs.)
Right Speaker 10.2kg (22.5lbs.)
