Re: more details please - moray james - High Efficiency Speaker Asylum

Re: more details please

Posted by moray james (M) on January 9, 2004 at 12:57:13

In Reply to: more details please posted by gazzamongo on January 8, 2004 at 13:42:02:

Hey Gary: I built a set of K15 with a slight twist. I used a set of Selenium 15 drivers (the exact model escapes me now) and I set up the K box so that the back cavity volume was the same as called for by Seleniun to run the driver in (recommended) reflex box. I tuned the vent a bit lower than the recommended vent tunning. I worked out all the volume ratios so that the new design (very close to stock) kept all the chamber to chamber volume ratios the same as in the stock cabinet. The resulting cabinet size was very close to the stock K15. Driver Fs was around 40 Hz. Later I made 12 inch adapter rings and tried out a set of ADS 12 inch drivers with an Fs of about 28 Hz. The ADS drivers went deeper and also went up a lot higher too. The ADS 12 inch drivers did have a lot more cone travel on peaks probably because they were not damped well by the reflex tube which had been set up for the 40 hz Selenium I asume. Both played very loud and had very good impact, great slap on kick drum and real whack on rim shots. Re the K5's the fostex fe108 sigma which has an fs of 80 Hz made very respectable bass in the scale K15 boxes. I do think a 3 inch driver would be good in a small k cabinet but the little cube speakers and small computer Monsoon planer speakers are so small and sound very good you would have to ask why put up with the bigger box?.
Do I know how they work? No! Do I think they are worth working on? Yes. Still seems to be trial an error so far. Perhaps if enough folks tried there might be a reason for someone to build a working model. I can only hope. Regards Moray James. ps there are T/S parameters available on drivers which have in the past shown to be sucessful so one can find comparable new divers to try out.

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Follow Ups Full Thread

Topic - basshorns-no rear sealed chamber - toxicport.e 00:22:56 01/07/04 (25)

Re: basshorns-no rear sealed chamber - tomservo 09:59:28 01/10/04 (0)

It can be done. - Bill Fitzmaurice 11:12:39 01/08/04 (3)

Re: It can be done. - toxicport.e 20:26:49 01/08/04 (2)

Interesting, but... - Bill Fitzmaurice 07:28:02 01/09/04 (1)

im not selling bassmax,im wanting no Vrc :P - toxicport.e 19:52:37 01/09/04 (0)

Re: basshorns-no rear sealed chamber - spkrman57 07:34:45 01/07/04 (0)

Re: basshorns-no rear sealed chamber - freddyi 07:31:36 01/07/04 (18)

Thanks ! oopps that search button ... - toxicport.e 07:44:04 01/07/04 (17)

Search button used...Looks like nogo for 2226 - toxicport.e 07:55:16 01/07/04 (16)

Re: Search button used...Looks like nogo for 2226 - GM 10:16:53 01/07/04 (15)

Objectives - toxicport.e 19:35:26 01/07/04 (14)

Re: Objectives - GM 20:01:31 01/07/04 (13)

Fc should always be below Fs. - Bill Fitzmaurice 07:33:16 01/09/04 (2)

Re: Fc should always be below Fs. - GM 16:32:04 01/09/04 (1)

Yes, even then - Bill Fitzmaurice 11:01:39 01/10/04 (0)

Its huge! - toxicport.e 08:02:29 01/08/04 (9)

Re: Its huge! - GM 13:33:13 01/08/04 (3)

Re: Its huge! - toxicport.e 20:23:47 01/08/04 (2)

Re: Its huge! - GM 21:14:38 01/08/04 (1)

matters. - toxicport.e 06:22:20 01/10/04 (0)

Re: Its huge! - moray james 13:08:26 01/08/04 (3)

more details please - gazzamongo 13:42:02 01/08/04 (2)

Re: more details please - moray james 12:57:13 01/09/04 (0)

~Â°Link!Â°~ - toxicport.e 17:29:47 01/08/04 (0)

Re: Its huge! - freddyi 08:44:05 01/08/04 (0)

Follow Ups

Re: more details please - moray james 12:57:13 01/09/04 (0)

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