Re: Upgrading Subs – New Driver or new Sub –What would you do?
There is quite an interest in the DIY tapped horns. There are also computer programs.
HOWEVER-I have seen a good number of them-and there is one "unaccounted for" part of the design that I see missing in most of them. This means they do not perform as well as they could. NO- I will not tell you what that is-so don't ask.
I was talking to a rental company in Germany yesterday. They said they had an interesting rental. A guy rented 2 TH118's and then brought them back a couple of days later-and told what he did with them.
There was a group of DIY tapped horn builders who were having a get to gather. They wanted to have a "measurement party". They were 500 miles from the rental company-so they shipped the cabinets to their location. They had various versions of their own single 18" "tapped horns", about the size of the TH118.
The first did not trust the sensitivity numbers Danley states. WHen they measured the Danley boxes they found that the measurements were actually 0.1 to 0.2dB higher than the Danley numbers. I always go towards the conservative side when stating the numbers for the spec sheet.
The best cabinet any of them had was about 6dB lower in sensitivity than the Danley box.
Now I am sure there are some people that are getting closer in SPL. But the Tapped horn is NOT a normal box-when it comes to how the box and the driver interact. Change one and it starts to fall apart quickly.
Believe me-all "tapped horns" are NOT created equal. So be careful about making "general" assumptions.
