Re: On apparent discrepancies between mouth size and reported response of bass horns

Hi Rog,

Thanks a lot for your reply, I am glad that you responded! Please, do not be offended by my questions. I have no reason to believe that you should be dishonest with your figues. My knowledge regarding horns is limited, and I really just want to learn about them!

From your post I learn that horn LENGTH is at least as important as mouth size when considering cutoff. I actually thought it was the other way around....

And now to a question:
In a previous post regarding the 1850 Folded Horn you clarified, that for home use you prefered the 186 Horn to the 1850 Folded Horn, since the 1850 Folded Horn sounded to 'hard' for hifi.

However, in that previous post you also mentioned, that if the 1850 Folded Horn were extended, it would take away the hardness and make it much more suitable for home use.

I play around with the idea of making such an extended version of the 1850 Folded Horn (that is, with the PD1850 driver) for home use. I would like to go down to 40 Hz. Please correct me if I am wrong, but as far as I understand it, this would require a horn length of 2.15 meters or 546 inches [(344/40)/4].

Could you give me any clue about how much larger the horn mouth should be in order to obtain such a result when only using one cabinet per channel but placed on the floor against the back wall (not corner positioning)?

I thank you a lot in anticipation!

Regards
Peter K.

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Follow Ups Full Thread

Topic - On apparent discrepancies between mouth size and reported response of bass horns - PK 03:04:56 01/11/03 (14)

Thanks! - PK 23:58:55 01/14/03 (0)

Re: On apparent discrepancies between mouth size and reported response of bass horns - Bruce Edgar 10:35:22 01/13/03 (0)

Re: On apparent discrepancies between mouth size and reported response of bass horns - Rog Mogale 16:36:11 01/12/03 (3)

Re: On apparent discrepancies between mouth size and reported response of bass horns - PK 01/12/0323:31:39 01/12/03 (2)

Re: On apparent discrepancies between mouth size and reported response of bass horns - Rog 15:56:01 01/15/03 (1)

Thanks! (nt) - PK 23:57:01 01/15/03 (0)

Re: On apparent discrepancies between mouth size and reported response of bass horns - mrrjm 10:53:44 01/12/03 (0)

The descrepancies are real - Bill Fitzmaurice 10:12:15 01/12/03 (0)

Re: On apparent discrepancies between mouth size and reported response of bass horns - freddyi 10:22:55 01/11/03 (5)

Link to article, bit of explanation - Cornu 13:15:12 01/11/03 (4)

Re: Link to article, bit of explanation - does the Gately Horn of 1953 fall into this subject? - freddyi 15:45:50 01/11/03 (3)

Look at the FOSTEX small spiral... - Cornu 13:04:57 01/12/03 (1)

Re: Look at the FOSTEX small spiral...Neat ! - freddyi 13:19:59 01/12/03 (0)

Re: Gately Super Horn - Shanko 17:07:53 01/11/03 (0)

Follow Ups

Re: On apparent discrepancies between mouth size and reported response of bass horns - PK 01/12/0323:31:39 01/12/03 (2)

Re: On apparent discrepancies between mouth size and reported response of bass horns - Rog 15:56:01 01/15/03 (1)

Thanks! (nt) - PK 23:57:01 01/15/03 (0)

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