GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Horn-Loaded Speakers
In the Thread: A right midbass solution for Altec 515G.

Post Subject: ...Posted by Macman on: 4/10/2012

Hi Romy,

Its an Altec 416-8A driver in a ~100 Hz exponential horn, Jbl 2441 in 350Hz tractix, Aurum Cantus G1 tweeter and Eminence Definimax 4012 HO in ~30Hz Tapped horn.

I just hooked it up and the highs are promising but I thought the lower end (200 hz and below) would be this setups stongest register but that has yet to show itself. Hopefully this will be something that is modifiable. I still dont have a good set of electronics but I think you would be able to hear the potential even so.

The altec driver when I got it, was used in an altec valencia. I had some time to listen to it during the building process and the bass that it was able to deliver was astounding. Really tight and fast. I thought that it would exell in the midbass horn but the "kick" just isnt there. The throat is 8" in diameter which I belived would work efficiently. I will catch you up on the "padding" around the tweeter, I just couldn´t come up with another solution for the tweeter placement. The tweeter and the 2441 is currently crossed over at 7kHz and I think it works out pretty good. The 2441 doesn´t appear to do a very good job at the higher Frequencies.

As It seems now the biggest letdown is the TH. The transient response is nowere to be seen and the sound is just loud and muffled. The dynamics is awful and the fast bass that I was looking for isnt there. I don´t know if I made some mistakes when I made it. I used a 12" because I wanted to have a driver that moved a lot of air so I could feel the bass as well as hear it. I know John knows THs well, maybe he have some thoughts. (the possition of the THs inside the other drivers is just temporary).

Regards
Marcus

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