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In the Forum: Audio Discussions
In the Thread: Romy The Cat's new Listening Room
Post Subject: A correction….Posted by Romy the Cat on: 5/5/2010
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 Bill wrote:
     If you are going to build such a huge cabinet or put a hole in the floor to use the basement as a chamber, why not just build horns in the basement with a straight 8-10 foot section in the basement with the back chamber resting on the floor, cut through the floor and put a 90 degree angle with the mouth facing the listening position. If you put the mouth against the floor and side wall you could build a quarter horn with a length of about 16 ft. and mouth about 9x9 ft. May not go quite down to 20 Hz. but should put out at least 30 Hz. using your present amp?
 Problem would be the time delay of the bass to the mid bass horn which would have to be overcome probably with an analog or digital  time delay. You could use a 24/96 active crossover such as that from Behringer  which would also act as the active crossover, time delay and even parametric equalizer for your  68 Hz room bump.
     I know, there goes the living room and the W.I.F., but this is high end audio and there's no wife involved. Lucky you for this.
     Before I got out of analog, I was thinking of building a 30 Hz horn to replace my 50 Hz. 6 ft. straight horn by building it from the ceiling down ( 14 feet, with one 90 degree angle facing toward the room in the corners of the room, but couldn't figure out how to do it years ago without having to go digital for the time delay for the rest of the system. Now its easy if you don't mind doing everything in digital.

Bill,

The midbass horn is a legitimate horn but I do not believe to the lower bass horns. I have an article dedicated to the subject:

http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=7213#7213

Also, the negative impact of using digital or even active analog crossovers is irrelevant from the fact what analog or digital playbacks we use.

The Cat

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