В декабре 2019 года я стал обладателем двух прекрасных моноблоков Opera Consonance Cyber 845S и не менее красивого предусилителя Opera Consonance Linear1.
Усилители пришли ко мне в больших красивых коробках. Качество упаковки на высоте - внешне сделано безупречно, упаковка - что-то, вот китайская упаковка для удовольствия - уровень ВЫСОКИЙ, это когда коробка летит с 9-го этажа, а моноблок цел. ,
Mr. Liu Shizhen (formerly known as Liu Zhaohui), the founder of OPERA Audio, believes that the reason why excellent sound can be vivid and resonate with the inner world of people is because their creators have deep artistic achievements and can use sharp hearing and art. Inductive force to touch every detail of the sound .
Загляните внутрь - мы видим порванный конденсатор, в результате некачественной пайки и пару спешно спаянных использованных колпачков "Black Gate" 220 UF 16V.
Видео -
The driver stage itself is very simple : E88CC, with an anode R= 8.2 K, cathode without a shunt = 470 ohms, the signal to the input flies directly, without anti-ringing .
For clarity, so that dear readers understand the whole false essence of Chinese audio, the official data on monoblocks, where one of the parameters :: - 3dB : 5Hz ... 47.000 Hz Ofic. website. http://www.opera-consonance.com/products/amplifier/Cyber845S.htm
In terms of power, even with an increased input supply voltage, the power output was only 22 watts (where else is 6 watts ?) and only 6.7 W (after which kg is more than 10%) - at 30 Hz.
And the real measurement : (- 3dB ) : 24Hz-26.000 Hz on cheap hardware without a name or gender . A ragged meander with a ledge at the transition point ""0" " - zero, a scanty inductance of 24 GN for 845 tube .
So you had a bad experience with one Chinese audio component and are now spamming entire threads about how bad they all are supposed to be? Have fun, i will keep enjoying my D5 + SP200 in the meantime.
Edit: Forget about that, you had obviously a really bad experience and are only overgeneralizing a bit. Understandable reaction.
So you had a bad experience with one Chinese audio component and are now spamming entire threads about how bad they all are supposed to be? Have fun, i will keep enjoying my D5 + SP200 in the meantime.
Edit: Forget about that, you had obviously a really bad experience and are only overgeneralizing a bit. Understandable reaction.
I just share my opinion and, unfortunately, I must admit, this is evident in many almost sound mentalities of China (I can not judge the whole of China), affected by the Vice of lies and deception .The question is, why does a decent-looking Chinese OPERA AUDIO mislead its potential customers by giving deliberately false descriptions of its devices ? Where they gave birth there at themselves these already 5 Hz on LF with-3 dB. ? Who is the target of all these lies ? 47000 Hz for RF (-3dB) at real (by monoblock measurements) 26.000 Hz . Add 21 kHz in your own advertising prospectus, how is that ?
In General, the question of RELIABILITY of data about the real parameters of devices or the same individual elements of the device-transformers, lamps, was and is always absolutely specific: the content of information must be identical to the real parameters . In this context, the company OPERA AUDIO deliberately made a lie by submitting false parameters to its monoblocks and thereby exposed its distibuters and stores who sell their devices .
Therefore, there are two scenarios: refund or refund of repair costs . The second scenario is seen in the Chinese reality contest as more adequate .
By the way, English or Japanese companies are very strict and meticulous about the reliability of their personal data . For example, the stated parameters for TANGO 2113 outputs ARE: 20 HZ-100,000 HZ (-2DB). By measurements: 20 Hz-110 .000 Hz.
Audio outputs, group B (152 from Meishu): claimed-2dB: 20 Hz-45.000 Hz. Measurement : ( -3dB ): 14 Hz-58.000 Hz.
In General , tendentiously, most reputable firms do everything with a MARGIN . Measurements always give the best characteristics . With Opera-nonsense .
The sound itself is a corporate and conceptual concept, but, like, I don't like it when I already bought it, it's not real. But when the brazen in the car put instead of the declared 150 HP engine in 70, there is already a different alignment.
Band -3dB at 15 W : 5 Hz .... 47.000 Hz. with 845 lamp. And it is necessary, with 211 the band is the same , but the LF should really crawl up, the internal resistance of the lamp is almost twice as high .....
Measurements at 3.1 W revealed a bandwidth (-3dB ): 12 Hz-26.000 Hz. At 1 kHz, the power limit is 21 watts ( which is the norm at +950v), while the site indicates 28 watts and this is already-unreliable data, 845, alas, 1250 volts were not gifted ..
The 30 Hz power band generally collapsed to the 8.5 W limit . At 50 Hz-up to 12 watts . This means that the iron in the output transformer is not just iron, but bad iron ....,
I don't think you are very I formative, constructive or fair. I have more than my fair share of Chinese (tube) audio for 15 years and I've seen, bought and heard plenty of samples from all tiers of brands. I have Cayin, Yaqin, Opera, Jolida, Yarland, Relyon and Classic. Some of them good, some with glaring errors, some very good. I have modded all of them with very pleasing results. One exception being my current Classic 16.2 300B Amp which is simply stunning as is. I am not a trained electronics engineer but I can read, think and solder, and listen. Measuring is not the same as listening. Tubes are notorious at measuring bad but sounding wonderful. The proof of the pudding is always in the eating and you haven't said a word about any of that.
I've heard it so many times, people going off at Chinese manufacturers. Just like the daily demonization of anything Russian now, Japanese in the '50-ies, Korean in the 80-ies etc. Always unfair, always temporal and always generalisations based on a personal bad experience of just 1 (one) sample or sometimes even plain xenophobia. You of all people should know that, ranting in Cyrillic written Ruskii.
I understand you're disappointed. But since this forum is about sharing information on modifications, why don't you write down something constructive. Like how you bought a beautifully made Chinese monoblock 845 Amp with some flaws and made some changes made it into a beautiful sounding Amp for 10% the price of Japanese or American offerings.
Yes, I know Opera Consonance is not cheap. That's why I only have a tonearm from them. And I understand if you believe changing transformers need to be changed that is not a cheap fix. But you seem educated and enough to make some smart and creative fixes to make it sound awesome. Good luck.
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