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Home » Article Materials in the catalog: 19 | Page: 1 2 »

Amplifiers мощности T-300/2, T-100/2, T-100/3Two years after manufacture of T-250 power amplifier model it was decided to add a few more amplifier models as well. Moreover, the goal was not only to add, but also to improve the sound quality and technical characteristics significantly. It was not that easy to implement this idea, but as a result T-250 had outstanding sound which was confirmed by numerous playbacks and user comments. It took two years of diligent work to improve the result. The following was modified in T-250 in terms of the circuitry: 1. The printed-circuit board layout was rebuilt completely to minimize distortions and pickups. It seems fair to say that it is literally a masterpiece. There are
Date: 29.11.2018 | Amplifiers | Views: 1925 | Comments: 1 | Rating: 5.0/2

Oppo Digital UPD-205After a couple of years after release of Oppo BDP-105D, the model was updated up to UPD-205. It was initially known that the device would be tooled for 4k, and in general it would not bring anything new in the rest. And it turned out that way. After primary inspection of the analog part, my opinion proved true. It remained practically the same. Nominal values of elements were changed a little, but on the whole the circuit design is similar. There are deficiencies of course, as usual. There is space where to apply efforts. The sounding in style of Oppo ...
Date: 29.11.2018 | Sources | Views: 2074 | Comments: 0 | Rating: 5.0/1

INTEGRA DRC-R1 / ONKYO PR-RZ5100At the end of 2016, the Onkyo Corporation released in the market the AV controller ONKYO PR-RZ5100 and the INTEGRA DRC-R1, analogous to it stuffing. From the point of view of functionality, the new processor differs from the previous version Onkyo PR-SC5530 (Integra DHC-80.6) in the DTS:X support for the audio part and HDR for the video. As for the rest, there are no obvious differences. Visually, inside, the device has been significantly redeveloped, one gets a feeling that the device is quite different. But in reality that is not so. To simplify the assembly at the factory, Onkyo redid the whole layout of the device to reduce maximally the amount of wiring inside the device, and possibly to reduce the cost. But the number of jumper-strap plates increased. There are about 7 of them instead of 1. It’s difficult to say whether it’s good or not...
Date: 29.11.2018 | Processors and receivers | Views: 3250 | Comments: 0 | Rating: 0.0/0

Oppo Digital BDP-105DI was constantly coming across online reviews that fortune finally smiled at us – “No other device sounds better, no matter how much it costs”. So, I just had to check whether it’s true. I bought it, tested it. And here’s what I have to say about it. The device is fairly good as a digital source. It’s able to read almost every format of sound and video. User-friendly. Good image. No claims in this respect. But the analog sound was far from being impressive. There’s no arguing that the digital output is good – it really sounds fine, I compared it with 3000-5000 USD devices – not bad, but I’ve seen better. The sound from analog output is not that great: harsh, foul, poor in timbre. Bearing in mind that I have been using upgraded Onkyo/Integra processors for a long time, the difference is evident. No need to harken. That is why I made up my mind to study upgrade opportunities for Oppo BDP-105D.
Date: 19.10.2015 | Sources | Views: 4484 | Comments: 0 | Rating: 5.0/1

Ayon AudioI did not describe each Ayon CD player separately. I’d just say that I have sifted through many of them – CD-2, CD-2s, CD-5s, and others. Mostly all top models. Actually, they all are practically the same in terms of circuitry, thus the sound is pretty much alike. This similarity is for the most part attributed to 6n30p output tubes, which give the sound the well-known "roundness". Generally speaking, the hardware is very well assembled, especially in view of its reasonable price. CD-5s has quality Philips CD-PRO2M transport. Digital-to-analog converter microchips - PCM1704UK. Power unit with rectifier tubes. Good interstage capacitors Mundorf MCap Supreme Silver-Gold.Oil. RCORE transformers - 3 pcs. CD-2 and CD-2s have SONY transport, PCM1704 D-to-A converters, but not selected as those in CD-5s. The power module is simpler.
Date: 27.01.2015 | Sources | Views: 6919 | Comments: 0 | Rating: 4.8/6

Ayon Triton IIIAyon Triton III is actually a typical integrated amplifier blending in with other tube amplifiers. The design is bright, catchy, recherché, but many people find it likeable. That is in fact all I have to say. As regards the sound, the bass is bloated and excessive. Tremble is not quite pure and clear, probably even muffled. The way it creates the stage leaves much to be desired. When we compared it to cheaper analogs of other brands, even much cheaper ones showed better results. But I must admit this amplifier is powerful enough. It will cope with almost any acoustics connected, which by the way is not the least of the factors, as it is not really appropriate to compare it with a well-sounding class A amplifier with 18W output. High power is not the key price-forming factor, especially for tube amplifiers. We decided to try to slightly improve the sound.
Date: 30.01.2015 | Amplifiers | Views: 5399 | Comments: 0 | Rating: 3.0/4

Power amplifier T-250In my opinion, this is an interesting amplifier which I had no intention to use in my system and which I happened to get by chance. It is of common knowledge that Jack of all trades is master of none. So I did not commit myself to amplifier making. I concentrated my effort on processors and DACs which other people manufactured for me. At some point I decided to try working on an amplifier. I won’t claim that my amplifier is outstanding - I know that better ones exist. However, I find it very pleasing. I compared mine with Krell, Electrocompaniet, McIntosh, Accustic Arts, CARY AUDIO, Accuphase, Classe, Plinius, Densen Audio, original amplifiers designed by Russian engineers. On the whole, I don’t feel like replacing it with any other device. What I like about it is the versatility, large power reserve (250 W/8 ohm, 450 W/4 ohm, and 600 W/2 ohm), excellent bass dynamics, pure treble without shrill...
Date: 09.01.2015 | Amplifiers | Views: 2803 | Comments: 0 | Rating: 5.0/1

Montana EPS-2More than once have I installed Montana EPS-2 in various systems, both for music and video. These speakers are worth their price. Solid heavy casing, good filter, firm assembly. Users at forums say that bass is too weak – typical for Montana. This is not true, at least for EPS-2. They do not have an exaggerated bass – it is just smooth. I measured these speakers – the bass is OK within their compass, both by sound and by measurements. Of course, low-frequency speakers of similar size with deeper bass exist, but their sensitivity is notably lower. These very speakers can be called universal – compatible either with class A low-power tube amplifiers of 40-60 W, or with transistor amplifiers of any power level. The result would be pleasing in both cases. The weak point of these speakers, in my opinion, is their tweeters. Perhaps they are adequate for their price range, but my ears have been pampered...
Date: 14.01.2015 | Speaker system | Views: 4472 | Comments: 0 | Rating: 5.0/1

Nola Viper 1A loudspeakersI’ve recently made over loudspeakers of this well-known brand. They sound very specific, the bass is very vigorous, good midrange, bright and ringing treble. Not my cup of tea. Measurements showed that bass is 8-10 dB too high. There is no rear chamber on the midrange speaker, open design, which makes the speakers sensitive to location in the room, and they definitely should not be placed near the back wall. Tweeter had an aluminum dome. Treble exceeded normal values. After disassembly it turned out that the parts inside were loose. Coils were not properly fastened in the filter – they were hanging on the wires. Acoustic terminals were dangling. Three out of four terminals were not tight. The owner complained that sound was sometimes lost, although the loudspeakers were only a few years old. Holes through which the wires go from the closed box into the open part of acoustic system...
Date: 10.01.2015 | Speaker system | Views: 4953 | Comments: 0 | Rating: 5.0/2

Audiovector Mi3Initially the sound was a little disappointing. A gap in the upper-mid. Somewhat muffled. Treble was too strident. All in all, the owner of these speakers was dissatisfied with the way they sounded. The task did not consist in making them over, for it would be easier and far cheaper to produce new speakers than to remake the old ones. The objective was to improve the sonics to the uttermost at minimum cost, which would be impossible without replacement of the tweeter. The original tweeter was too crooked in measurement and repulsive in sound. We agreed upon installation of Heil’s air motion transformer Mundorf AMT21CM2.1C. We had to adjust the filter to this tweeter. In the meantime we replaced the standard wiring by Van Den Hul. The speaking casing is made of medium density fiberboard which is quite spongy and thin to the touch. Very austere, I must admit.
Date: 10.01.2015 | Speaker system | Views: 6032 | Comments: 0 | Rating: 5.0/1

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