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About quadrokot

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  • Birthday 05/16/1963

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    audio, music, box, crossfit
  • My System
    Klipsch Jamboree Bass Bins+402 jubelee horn+Beyma horn tweeter, single-ended tube amplifier on a directly heated triode 833 C, tube preamplifier with 2A3 tubes.
    РS-Audio PW transport and DirectStream DAC.

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  1. Hi guys. I managed to build a bass section for two 15 "speakers. The phase inverter is set to 40 Hz. The size of the box can be changed proportionally, I have a length of 1020mm, because that's what the 402 horn. Used two speakers from Bob Crities. Because my crossover is tuned to a bass section resistance of 4 ohms, the speaker coils were rewound at 8 ohms and connected in series. Plays great, powerful and fast bass. I'm posting drawings, maybe someone will need them.
  2. Іn six years of living with an amplifier on 833 lamps, I was able to compare it with many other tube, transistor and PWM amplifiers. These were Quody, Diinako, Scott, Audio Sculpture and others. None of them could match the 833 lamp. She paints great musical images, for example, the singer was standing at full height. The piano was as wide as natural. Yes, high power consumption, in the anode of 1650 volts it causes respect and caution. It is hot near the amplifier in summer. But for such a sound you can tolerate everything. One-stroke amplifier 55 watts in class A. At first, my amplifier worked with Jamo 909 R. It revealed their full potential. Modern PWM amplifiers are better in bass, but they have not yet reached such midrange frequencies as the 833. I liked that my one-beat play rock easily.
  3. I had a Diy Jamboree based on original drawings from Dana Moore. The bass was powerful and large, but had a large peak of 12 dB at about 125 Hz. After which there was the same pit at about 250-300 Hz. Rock did not play in the absence of this range, there was no energy, the lack of which was not so noticeable in other genres. Unfortunately, the measurement screens were not preserved. So, after consulting with Dana, I reworked Jamboree for direct 15 "speakers. The 200-300 Hz range got better, but the peak around 100 Hz remained big. I attribute this to Jamboree's own resonances. The bass seemed to play on the same note. , close to 100 Hz. I was not able to reconfigure the crossover because I am not such an expert. So I decided to make a box with a phase inverter for two 15 ". The crossover was based on the ALK II, slightly modified its woofer link, replacing the coil with a different denomination. All my dances around this wonderful Acoustics ended with an incredible sound. I am very pleased. This is probably offtopic, the same theme for the 833 lamp.
  4. Hi guys. Since 2012, I have a self-made lamp amplifier with 833 lamps (Gu - 48 analogue from the USSR). I'll tell you right away, I didn't do it, but I'm not an electronics specialist. I just love listening to music. Amplifier - single-stroke in class A, 55 W when using 750 W. For 6 years I brought his sound to my preferences: openness, speed, timbre. In my opinion, and the view of many who listened, it worked. the room I rented, it's not my design.
  5. http://audiokarma.org/forums/index.php?threads/woof-woof-part-two-of-a-horny-day.286501/ post 16 Good afternoon guys Here is a discussion of this situation on another forum. I fully agree with the author of the post number 16. Could the same conditions apply to the entire list of speakers dictated by Dana? Namely: Bob Crites CW1526C, Klipsch K33E, B & C 15HPL76W, Eminence CB15, Iconic 165-G, Iconic 165-GHP, EVM-15B, JBL J-145.
  6. welcome everyone. I live with my Jamboree more than four years old. I want to share my experiences and observations. First of all, I want to thank Dana Moore for the professional work on developing horns. The first thing that caused me the question are different characteristics of the dynamics that can be used in the horns. I do not speak for various technical characteristics of the speakers (TS parameters), but they have a power span from 150 W to 500 W. It is interesting that someone at home will use one fifth of the power of one speaker (this is a hundred watts), and these speakers are four. The question, in which room at home, can you easily listen 400 watts of music? I use the coupled speakers of Bob Crittis in which the dealer replaces the coil by a standard 8 ohm. Slit horn use 6X13 inches. By measuring and hearing the horn has its own resonance of about 150 Hz and a "hole" of 300 Hz. What in the sound leads to the effect of "boxes". I managed to overcome this effect by dampening volumes on the sides of the horn. And what about you? Sorry for my English.
  7. Good afternoon to all. Built before Jamboree in drawings by dear Dana Moore. I use parallel Boa speakers, in which the coil is replaced by a dealer by a standard 8 Ohm. The panel has a slit 6 "by 13". What noticed, the Jamboree has a special resonance of about 150 Hz and a failure of 300 Hz. In my case, this leads to the sound of a "box", the bass plays as if on one note. Has anyone been watching this?But how to overcome it? Thanks for the answer.
  8. I'm sorry, a little off topic, I want to ask, did anyone have experience building one box into two 15 "speakers? There is an idea to build such a box under two 15 "Bob dynamics located horizontally, and from above to install 402 horns. Thank you in advance.
  9. Friends, use Faital pro 200 together with 402 horn. High frequency audible only on the horn axis. Therefore, using a high-frequency driver.
  10. What are the views on the use of driver JBL 2485? Now use Faital 200. I was a bit lacking midbass and lower middle. The frequency distribution of crossover 500 Hz 6000Hts.
  11. Unfortunately conduct measurements fail. I live in a rented apartment, which has bad acoustic properties get rid of which I can not. When it can immediately make measurements and show them on the forum. Regarding the possibility of absorbing wood I managed to some extent overcome by using а shellac.
  12. it's not only the beauty, but the sound has changed. The attenuator crossover had to raise by 2 dB volume driver. I think this is due to the fact that the original horn resonated, these resonances and "cried" so that had to make mid quieter. The sound plywood horns was "calm", "fatter" s "tangibly". Speed is not lost, you can listen to everything from classical to rock.
  13. not quite understand how to show drawings, if everything is done from the original horn. Sorry for my English.
  14. I have 402 of original. I made him a prototype.
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