GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: Adding one more non-spherical to Macondo.

Post Subject: The fight for 450Hz…Posted by Romy the Cat on: 12/17/2010

Hm, this is what I am playing how: the new 18-cell and S3. I run it from a full time Milq and use it with no filter of any kid. Rony is right the depth effect is there, it is not even depth but rather multi-dimensionality. Indeed very pleasant feeling. It reminds me a good mono recording where single monophonic focusing point has a lot of depth and a lot of volume. The upper range is expectedly very bad and I would not use this above I would say 3-4kHz. The lower knee of the driver range is fantastic, superbly clean and this is in a way very bad as it is a clear indication that the horn is too large for the driver. I think S3 drop like stone at 450Hz but I would need something that would do down to 300Hz. I need to think about it. If I run just this horn then I would for sure go for it and would search for a compression driver with 300Hz response and with tone like Vitavox S2/S3 has a lower end. But I am not sure if I need to do it in my case as I have other channels right there, so I need to try find a configuration that more work as embracive summation. So, need to see what my upperbass and other channels do at 450Hz…

Rony, I heard the RCA 18-cell horn at Oswald’s Mills. It is very difficult to say anything about them as at the Mills there was no Sound but only that constant fear and ridicules pressure of damaged management. Also, the guy who run the system in there is highly intelligent and only God know what kind crossovers he managed to theft at that time and how it all was organized. What I asked him what his playback used he was not able to say anything lucid and what he did he clearly did not understood what he was saying. The lower midrange that was coming from Mill’s RCA 18-cell pleasant but it was flooded that that ridicules midbass horn with a pair of 25Hz 15” drivers. That all produced just a monotonous boom and was horrible. However, what they played Fisher-Dieskau with light piano and music did not have a lot in lower end then it was very pleasant. From what I member and I might be wrong, but the RCA 18-cell are MUCH larger then mu horn, they probably 140Hz or something like this. The Oswald’s dirt I think used some kind of RCA driver that go much lower than typical compression driver and I might be a good choose for that horn. Again, it all depends from what you have above and below. If I was listening that Oswald’s Mill installation with RCA 18-cell then I would probably ask to disconnect the lower end channel and to driver just multi-cell with the MF drivers that they use (it was a small conical). Unfortunately I did not do. Anything, the point of this that if you like your RCA 18-cell then the S2 driver might have too weak low end for that horn size. It looks like it is too weak for my horn.

Reminder, what do not want a horn or a driver to write of your slope – you want a filter to do it. This is one of the very basic self-invented acxioms I use.

The Cat

Rerurn to Romy the Cat's Site