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  1. Robh3606

    Direct Coupled Drivers Vs Crossover

    Hello I have had good results using both passive and active? You are using lower power SET? What does the speaker impendence curve look like? Those are 15's in parallel no? Depending on the overall impendence level if it drops low and a high phase angle they could be a tuff load.' With...
  2. Robh3606

    Hi-Fi is NOT a subjective hobby.

    What?! The image completely collapses when out of phase. The indication is the total collapse of the central image. Why would you even use a stereo pair out of phase? Not only that but the bass response will be very anemic as well. Not sure what is going to happen higher up but the change in...
  3. Robh3606

    Hi-Fi is NOT a subjective hobby.

    You don't use a set-up disk with a simple phase test to verify set-up? Why measure anything you can easily hear. Rob :)
  4. Robh3606

    Your "secondary" living room system

    I have a small set-up in my Livingroom. Use it for TV, movies, streaming and plain stereo. Use it almost everyday. Performa F206's a subwoofer with "active" crossover in the preamp. DVD player handles movies and CD. Rob :)
  5. Robh3606

    Layering in a Second Speaker System With Narrow Bandpass?

    Hello hopkins Well depends how much and where. Music power requirements are not linear so lets say you add +6dB at 50 hz. You would require 4 times the power. Do it on the other end you also add 4x the power but you use less in the upper octaves. It's always better to use cut only EQ if you...
  6. Robh3606

    Layering in a Second Speaker System With Narrow Bandpass?

    The scenario is hypothetical. Why would you do this? Why not just add EQ and add a slight boost in the 5-10K range. There is very little power there so a 5 db rise won't add a significant power increase in the driver. Your adding a crossover and an extra power amp so what would be the...
  7. Robh3606

    What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???

    Hello So have I in similar demoes. They are really nice! I don't know if he has changed the cabinets design? Maybe he has? Was using K-145's with F/C magnets so different from the JBL 150C in the original also crossing them significantly higher @ 800Hz so I would suspect the latter version...
  8. Robh3606

    What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???

    Do you understand how a corner horn works? The back isn't sealed. The original K used the rooms walls exclusively, the newer version is built similar the the Hart which always had side panels as part of the enclosure. WRT it being a corner horn? Read the catalog! Rob
  9. Robh3606

    What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???

    You would place these like any other WRT frequency response below say 300-400Hz. Like any other direct radiator speaker, the woofer, they have no directivity control in that region. So in reality it's all about room speaker compatibility. They could work just fine. I have larger speakers and...
  10. Robh3606

    What are the Top Horn Speakers in the World Today? Vox Olympian vs Avantgarde Trio vs ???

    You didn't get it wrong. It is a corner horn. Built to compete with the Klipshorn, Just because it has side panels doesn't change that. JBL stopped manufacturing them in 1964 because of the success of stereo. Most people could not accommodate a pair with two unused corners. Rob :)...
  11. Robh3606

    Why does my TV sound more real?

    TV sound is typically tailored similar to a old phone line. There is no deep bass or highs it's all midrange. So of course certain aspects are going to be highlighted. Music lives in the midrange so sure it can sound good but sure as hell they are not accurate. I don't use my TV speakers at...
  12. Robh3606

    Modern speakers vs Vintage speakers

    Hello I understand that typically there are multistrand tinsel leads soldered into eyelets. Compression drivers usually use aluminum VC wire/ribbon. In the photo's I posted it's not tinsel lead but ribbon like the coil. And there were failures using a ribbon. Here is a better picture. Can't say...
  13. Robh3606

    Modern speakers vs Vintage speakers

    I thought some of the older compression drivers routed the VC wire through the tangential surrounds and it was a common failure point? Maybe not? So what's your objection to aluminum? Rob :)
  14. Robh3606

    Modern speakers vs Vintage speakers

    Why out of curiosity? Durability like breakage from flex? Rob :)
  15. Robh3606

    Modern speakers vs Vintage speakers

    What is that the electrical phase?? Rob :)
  16. Robh3606

    Modern speakers vs Vintage speakers

    That's a good point. I wonder how much of the original design documentation survived? Some of it was patented so that survives. The rest? Maybe someone will chime in and tell us. Yes it would be fun! Here is an interesting read about the Shearer Horn System with references to John Hilliard...
  17. Robh3606

    Modern speakers vs Vintage speakers

    Lol I can see why. Updated the post to read: Western Electric original 1920 and say a repro from 2022 Rob :)
  18. Robh3606

    Modern speakers vs Vintage speakers

    What am I missing thought it started here?? Rob :) https://www.whatsbestforum.com/threads/modern-speakers-vs-vintage-speakers.33488/
  19. Robh3606

    Modern speakers vs Vintage speakers

    Ok lets compare date of manufacture say with Western Electric original 1920 and say a repro from 2022. How can you be not sure is 2022 Vintage?? It is a reproduction, it is a hybrid not an original that didn't exist until it's DOM. Rob :)
  20. Robh3606

    Modern speakers vs Vintage speakers

    Really easy answer to me. Certainly is not vintage, it's not using the same materials or processes. It's a reproduction using modern manufacturing. If it is using different materials it's not even a clone. It's a new driver based on a vintage design. Rob :)
  21. Robh3606

    Modern speakers vs Vintage speakers

    Ok I understand now. The idea behind the thread is to discuss Modern vs Vintage. So if you are not going to draw a line how can you constructively discuss the topic at hand if everyone in the discussion has their own definition? Or a vague one with no clear boundries? I see the same result...
  22. Robh3606

    Modern speakers vs Vintage speakers

    Hello Where exactly do you see the line?? For me a 2220A is vintage. It uses the original designed magnetic pot structure. When they had the cobalt shortage and switched to ferrite JBL came up with SFG pot structures that had markedly better distortion characteristics. To me everything after...
  23. Robh3606

    Modern speakers vs Vintage speakers

    Hello bonzo75 Ok to say that the JBL Everest 2 doesn't use modern drivers is incorrect. The difference between modernization and using modern drivers is semantics. One is the process the other use of the modernized drivers. You are not addressing the new TAD coax drivers. There are so many...
  24. Robh3606

    Modern speakers vs Vintage speakers

    What bandwidth are we chasing? It is still the same 20-20K with sub 20Hz for the organ aficionado. There should be no difference between playing Stravinsky's Firebird, Tchaikovsky's 1812. Holst the Planets as opposed to any modern synthetic block buster. I don't think the move to improve has...
  25. Robh3606

    Modern speakers vs Vintage speakers

    Are you talking about the drivers or implementation. The basic 15" 2 way goes back to the Iconic. To say that drivers have not been modernized is simply not true. Rob :)
  26. Robh3606

    Modern speakers vs Vintage speakers

    Hello SOT I don't know back in the late 50's and early 60's when stereo was being born "High Fidelity" was the name of the game. Basically Fidelity to the source and they had their own generation of "demo" records at the time. I don't think things have really changed all that much except maybe...
  27. Robh3606

    Modern speakers vs Vintage speakers

    When occupied you instinctively look up or turn your head as if another person is in the room I think that's a good indicator WRT realism. Rob :)
  28. Robh3606

    Off-axis listening - speaker l/r balance adjustment

    A stereo pair? Depends how far off axis. It can certainly help but like listening off axis is not optimal. Rob :)
  29. Robh3606

    Does Analog EQ belong in State of the Art Systems?

    Agree you shouldn't be changing what is essentially a tool for setting a " House Curve" to adjust for individual recordings. EQ should be set and forget. You use tone controls for individual recordings Rob :)
  30. Robh3606

    Does Analog EQ belong in State of the Art Systems?

    What exactly are you trying to accomplish? Do any of you have measurement capability? The whole idea is to balance the frequency response and shape to a "house curve". Some of the EQ's have adjustable Q and without some form of measurement you can really see what's going on. You also can't see...

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