In a variety of tube head amplifiers, the strange had Audiolab maestral One, was put up above all others. So, the next year.d Triode festival,ive listen it again,an there was no doubt, I bought. There is two years that is now in my possession, and Im calm for ever with head-fi. Maestral has such a detailed saound,if you didnt now that you are listening a tube amplifire,you will be thinking that is an ss,but with all the advantages of tubes The construction. Well,hand maid in Croatia, only high-end parts assembled with patience and love for music. Visitor Zlaja (from Osijek, croatia ) wrote: This new Cyclone gm70 is for now completed my quest for good sound and i am very satisfied. I do not write a lot of words, but I listen to a lot of good music. Visitor Yugas, Spain wrote: After 5 days of shipping (Im inside europe too) finally i got it here! Package is very well protected and tubes for replacemente are supplied too, very good detail from Had-Audiolab.
But if you need dynamic, 2A3 drives fast in crisis, with audible distortion. Maybe a 2A3 push-pull. But thats okay, i was not looking for a first class amp even for the els. For these headphones im very curious to hear your dedicated amplifier. Well, what can I say? Thank you for your commitment and for your great job. Visitor Lest (from Croatia ) make wrote: The first time ive met with Had Audiolab was at the.nd Croatian Triode festival. I was back then only interested in headamplifiers, never heard it before.
The loudest are the Grado rs-1 and Sennheiser hd-565, but much depends on the quality of the final tubes 2A3. Listening with planar headphones is very good (especially with theHhifiMan but not at the same level of dynamic headphones. In this case it is only an excellent amp! Everything sounds at the highest level, but lacks a little bit of magic. Listening the K1000, from the speaker terminals, the sound is very good in the midrange and upper-middle, but a little poor of impact in the low range. With regard to electrostatic headphones, it is, in my opinion, a wrong project. No offense, i do not want to criticize you; however, the use of electrostatic headphones is limited to genres with low dynamic. Small group jazz and classical chamber music sound very, very nice, as long as you do not overboost with the volume.
Giorgio, hello, thank you for the lovely reviews. Ill make changes in electrical topology witch replace the a need for expensive tubes. Of course, with a desire for more concrete sound, especially in treble area. Also, with the intention to stay within a range of acceptable pricing levels as a compact but still tube and nice sounding amp for Stax. Giorgio (from, italy ) wrote: Zephyr What else? Hello Drazen, a bit of time has gone and I was able to get a serious idea of the zephyr.
So i decided to write to you. The amp mounts two nos marconi 2A3, one Psvane 274b, one nos rca 0D3 and two nos mullard E88CC. Without a doubt the zephyr is the best amplifier for dynamic headphones ive heard in 40 years. The listening quality with Sennheiser, akg and Grado is spectacular, as not to regret anything. We have rediscovered the first class of old headphones like the hd-565, hd-430, K340, rs-1, capable of giving true emotions. The silence of the unit raise from very good to excellent, depending on the headphones.
Of course, if you want to share your opinions with me, i will be grateful for this. Ciao, giorgio, thanks for your comment and opinion, i must read this carefully and thinking about change something in internal electrical design of this headamps (4stax). And in my head I have some ideas that could open the amp in treble. Hi drazen, the fivre 6X5GT was a real improvement for the great sound, really! Not great space, but the general level jumps ahead!
Hello Drazen, at the end of my test about the maestral 4Stax, ive changed drivers and rectifier another time, having, unfortunately, no other 6N7. Rummaging in the closet of the valves I found a 1950s Sylvania 6SN7gtw, that I tried instead of the rca and with the 6X5 fivre and Tung-Sol metal base. Well, i personally think that the change of the rectifier modifies the sound of the maestral more than the driver in terms of timbre, but the change of driver is essential to open the scene. Now, finally, the maestral sounds like i wanted in terms of three-dimensionality and detail, with a really nice sound. Too bad that the valves installed cost so much! If you can also change something in the circuit, the amplifier will be really high level one!
The top end, however, it is far enough back and with a not always adequate detail for the class of electrostatic headphones. Maybe a little roll-off, maybe a little poor detail. Poor in comparison with the treble that the zephyr shows with Stax. This characteristic of the high range also affects the 3D of the amplifier, which appears a little closed, with no breath and airiness, negative characteristic that Stax show dramatically. The scene looks compressed compared to the zephyr, confining all the sound inside of the head. I thought it was the fault of the valves, so i bought valves of good quality: 6N7 rca matt finish, 6X5gt brimar and fivre and 6SN7 rca. Things have improved a little, but not as i expected. It almost seems like for the kind of sound of the amplifier depends upon a design choice rather than materials (poor valves).
Ive received some informations about it, regarding the idea and the market position of the amp, just to put it in the right position of my mind. So, ive tested it in comparison with my megaHertz guerra, a real battleship for els headphones: m, my impressions (and Drazen comments) as follow: Hello Drazen, i was not been able to deepen as I wanted the performance of your maestral 4Stax, due. I did, however, a fairly certain idea of the amplifier, that I will try to describe you. As always, do not be offended if I will be honest about the amp. I appreciate your work and hope that my feelings can help in improving. From a sonic point of view the amplifier has a warm tone with excellent bass and mid-bass, deep, present partes and articulate. The yield is never regret a dynamic headphones, a very, very positive sensation. Even the mid-range is very well balanced and real, with well-designed male voices and transparent and smooth female voices, with no sign of bitterness.
through the whole topic it will take you about 2 hours to complete. You can use the topic navigation box to jump to the pages that will be most helpful to you, or you can start at the beginning and work through the whole topic - it's entirely up to you. What do i need to know before i do this topic? You don't need any prior knowledge to do this topic. Do i need any equipment or resources to do this topic? For some of the activities in this topic, you'll need a pen and paper. Visitor, giorgio (from, italy ) wrote: maestral 4Stax, another great amp! I have received this new amp for electrostatic headphones from Drazen after the great result of the zephyr.
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