Loudspeakers have we really made that much progress since the 1930s?


Since I have a slight grasp on the history or loudspeaker design. And what is possible with modern. I do wonder if we have really made that much progress. I have access to some of the most modern transducers and design equipment. I also have  large collection of vintage.  I tend to spend the most time listening to my 1930 Shearer horns. For they do most things a good bit better than even the most advanced loudspeakers available. And I am not the only one to think so I have had a good num of designers retailers etc give them a listen. Sure weak points of the past are audible. These designs were meant to cover frequency ranges at the time. So adding a tweeter moves them up to modern performance. To me the tweeter has shown the most advancement in transducers but not so much the rest. Sure things are smaller but they really do not sound close to the Shearer.  http://www.audioheritage.org/html/profiles/lmco/shearer.htm
johnk

Showing 4 responses by orpheus10


I noticed no one has mentioned the Heil Air Motion transformer; that came out in the 70's I believe, and there were some two way speakers that utilized it. Although I liked the highs that two way produced, the mid-range just wasn't mellow enough.

I liked the highs so much that I designed 3 way speakers with that for the tweeter, 12 inch woofer, and 6 inch midrange. I engaged a crossover engineer to design the crossover (far too complicated for me), and that completed my speaker; it's completely neutral, and takes on the quality of whatever electronics are used; you can tell a change in interconnects immediately.

Although I'm listening to them now, I would never do it again; I spent 20 years redoing the cabinets until I was satisfied, but that's the only way to get precisely what you want.

I noticed a lot of speakers lately are using miniature Heil Tweeters.


  https://en.wikipedia.org/wiki/Air_Motion_Transformer


  http://www.simplyspeakers.com/ess-replacement-tweeter-air-motion-transformer-amt-heil.html



Enjoy the music.

I just happened to remember, when I built my custom speakers originally, 20 years ago, I used 6 inch Vifa for the midrange, which is a good speaker, and I was told not long ago that they had improved their 6 inch driver, so I replaced the old drivers for Vifa's new drivers, and there was a tremendous improvement across the board.

Those who make their living selling drivers, have to keep improving.


Enjoy the music.

Inna, speakers can be improved a great deal; since I built my speakers, I have replaced the woofer, and midrange, but I got the biggest surprise when I upgraded the capacitors. Although I didn't change any values, (I'm not an engineer) I changed from electrolytic to all polypropylene.

Although it was expensive, it was worth it, but it was cheap when you consider the price of new speakers.

If your speakers have all poly caps, you could talk to Vifa, or "Parts Express" about the drivers. If Vifa has improved your particular driver, those speakers would sound even better.

Since you like the speaker cabinets you already have, that would be a relatively inexpensive way to get new speakers.

One caveat, make sure you have enough room for the change in capacitors.


Good luck.

Inna, it takes a smart man to know when to hold and when to fold. Since Vifa makes some of the best drivers, they're probably good just as they are. The most important thing is to,


Enjoy the music.