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MeloManiac

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MeloManiac last won the day on February 2 2021

MeloManiac had the most liked content!

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About MeloManiac

  • Birthday 05/16/1969

Profile Information

  • Gender
    Male
  • Location
    Geluwe, Belgium
  • Interests
    Photography, movies, art history, literature
  • My System
    Klipsch Heresy I (1972)
    Klipsch RP160M
    Marantz MP5005
    TubeCube 7 | Tube upgrade: Sovtek 12AX7-LPS (longplates) and Sovtek EL84-M
    Pro-Ject Essential III - George Harrison special edition


    a Amazon Fire 7 for streaming (cable-connected to the switch)
    a brandless cd/dvd player (it also has usb-in and a cardreader)
    Spotify Family


    Sovtek 12AX7-LPS - This is an entirely new design from Sovtek and a great step up in sound quality. They have very large ribbed plates and great sound reproduction. I found them very smooth and well balanced in terms of bass, mids and treble response. The large plates make them more prone to microphonics and in combo amps, so they can be a problem if you like to run things wide open. It is still the best thing Sovtek has produced in a 12AX7, with very good gain and low noise. I would advise against using them in compact high-powered combo amps where they will be subjected to lots of vibration. One other note about the construction of these tubes is they have filaments that are almost completely encased in the plate structure. They often don't "light up" when working properly. This is not a problem, it's normal for the LPS.

    Sovtek EL84-M - A military-spec version of the standard Sovtek EL84 - the Sovtek EL84M's extended voltage tolerance - improved plate dissipation - and rugged construction make it equivalent to the RCA 7189. Chosen by Matchless for their designs - the EL84M also features higher transconductance - more power - and longer life than the less expensive EL84 - making it perfect for hi-end audio applications. However - many musician's prefer the regular EL84's warm distortion to the EL84M's tighter - cleaner tone. For all Hi-Fi users - the EL84M is definitely the tube of choice.

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  • Website URL
    https://www.flickr.com/photos/ivanlietaert/

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  1. Weather is messed up on global scale. Here in Belgium, we haven't had a drop of rain for 3 months, until yesterday. This will be the driest spring since the beginning of keeping weather statistics.
  2. I have three, one of his best of albums going back to the Cosmos period, and 'The friends of Mr Cairo', with Jon Anderson.
  3. RIP Vangelis, 79, died in Paris. He was in hospital for treatment for corona. He's most famous for soundtracks: Chariots of Fire, Blade Runner, Conquest of Paradise, and, of course, the theme and soundtrack of Carl Sagan's Cosmos documentary series. 😭😔
  4. I've been wondering for a while when I see your pictures... You're using a lot of granite in your setup. In your experience, how much does it affect sound quality?
  5. Thank you for your post! Comparing set ups like that can drive people crazy... Personally, my 1972 Heresy speakers hooked on my Leben CS300 is my personal reference system. I'm not saying this is the best system in the world, but for me, it works best and is 'easy listening', while I'm totally 'zen' with the fact that there are better amps and speakers out there.
  6. Interesting article for vinyl record lovers: https://parttimeaudiophile.com/2020/10/17/hi-fi-why-do-records-sound-better-the-ivory-tower/
  7. I watched the 1993 movie Philadelphia tonight. The pivotal scene in the movie is when Tom Hanks listens to La mama morta and breaks down emotionally. Not so long ago I bought a Maria Callas album at the local thriftstore, and guess what, there it is, on side C! A hidden treasure in my collection!
  8. PROBLEM SOLVED ! After careful listening and feeling the cabinet with my hand, I concluded it wasn't the horns that made the 'ziiing' sound, but the cabinet. So I re-opened the cabinet and checked all the screws holding the cabinet together (and the front panel and the back panel). There are quite a lot of them actually, and some of the could be fastened with a half or even a full turn. Maybe the extreme dry weather is working the wood? I don't know. See hydrometer image attached. Anyhow, after screwing back the back panel, the ziiing is completely gone and all is fine! Thank you for all your input! It helped a lot in figuring out what was going on with my 50 year old speakers!
  9. Yes, I did, and it is the same speaker giving the problem. Also different amps give the same problem. My SS Marantz more than my tube amp (which has more of a roll-off in high frequencies). Thank you for doing the suggestion.
  10. I'll check the gaskets this week. As I have checked all the rest, I hope this is to blame. I've noticed the screws are very tight and go deep into the wood, so those old gaskets must be very much compressed and they are 50 years old... This is one of the tracks where I hear the 'ziing' often, btw:
  11. I must admit it sounds as if something loose is vibrating when a particular note is played.
  12. What are the symptoms of a diaphragm gone bad?
  13. Up to now, I haven't touched the horns (I did replace the caps of the crossovers).
  14. I have a question about my 1972 Heresy speakers. Hope someone can help me. Of late, one of the speakers produces a 'ziiing' sound when I listen to a particular CD (with oud music ). When a particular note is played, there seems to be interference and a metallic 'ziiiing' sound is produced in the tweeter or squawker. Can't tell which one. It only affects one speaker, the other one is fine. For most of the other music that I listen to, the speaker is fine. I opened the speakers and noticed two things: The K-77 was covered with a yellowish corrosive powder (see pictures) which easily rubbed off, and it also had a loose screw (to fix to the wood panel). I'm wondering if the diaphragm needs to be replaced, or if it is caused by something else, like a loose screw or perhaps the extremely dry weather which we have here right now... Or perhaps a good clean would do the trick? Help will be appreciated!
  15. I have just ordered my own collection according to value. Quite interesting...
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