Steve Eddy said:
No Steve, I haven't heard the Jordan JX-92. My only experience with Jordans was listening to a linear array of four 2" units back in about 1983. I was at Ted Jordan's house and he very kindly helped me to design a hi-fi system for a car. I'm sure that the JX-92 is a very good unit indeed although I'm not sure how high they can go.
I'd be interested to hear a single 2" unit (Bandor or Jordan) horn-loaded. Has anyone heard such a thing? It would certainly work with your 6W amp.
Steve, yes you do need Excel to run that linear array program. Fortunately, it doesn't sound like you would go the linear array route anyway.
Incidentally, I would love to hear your "the Interface" device. It seems interesting and looks great. If anyone's interested, they should check out www.q-audio.com.
BTW Frank, I hope you're not going to charge Steve $50 for this. I swear he had nothing to do with it.
7V said:
Actually I should have said the JX-92S, which is the most recent version.
They get up to 20kHz. Got a bit of a rising top end, which is why Ted recommends they be listened to just slightly off axis.
Here's a response plot:
<center>
<img src="http://www.ejjordan.co.uk/JX92sfreq.gif">
</center>
Not aware of anyone who's done it. But I'm sure someone out there probably has.
And you'd really have to front and rear load them to get them up much from their rather average high-80s sensitivity. And the Jordans and the Bandors aren't terribly well suited for horn loading due to their rather high Qts. Ideally you want something in the .2 to .3 range.
Nope. At least not for nearfield listening.
Thank you. (Psssssst! Your check's in the mail
)How long will you be in Colorado? I've a silver/maple unit floating around that's due to either come back to me or on to the next person who wants to give it a go. If you'd like I could arrange to have it sent to you in Colorado. Feel free to EMail me if you'd like to make arrangements.
BTW Frank, I hope you're not going to charge Steve $50 for this. I swear he had nothing to do with it.
Yeah, that's the ticket. I had nothing to do wiht it, Frank.
se
Steve Eddy said:
Very nice curves for a full-range. I'm sure they'd sound great too. I wonder whether you could mitigate for the slight top end rise with a suitable grille cloth. Of course listening slightly off axis would be a good, practical solution.
Steve, I'll let you know when I'm coming to Colorado. I must admit a trip to the West Coast would be tempting, although probably not possible this time.
Steve
PS: What are you doing up at this time? It must be about 3.00am out there.
Jensen has produced the first commercial bass-reflex in 1936. But G.A.Briggs (Wharfedale) has written he was working with various enclosures in 1930 or so. Before this, drivers were mounted in radio receivers, rear open, or on a small board, but low frequency response of amplifiers was so poor that it causes no audible inconvenience.
It's possible that Celestion (Rola ?) was manufacturing similar boxes at this prehistoric time
Regards, Pierre Lacombe.
Re: Re: Who Invented The Loudspeaker!?!?
Thankyou very much.. But I did somehow manage to find that link on my own.. lol
VERY HELPFULL!!! The sheet I was given with inventions, dates, and peoples names said the loudspeaker was invented in 1924 (as you said) but there are many before that..
Netlist said:
ststone could be right, but here's a nice link:
http://inventors.about.com/gi/dynam...tory.acusd.edu/gen/recording/loudspeaker.html
/Hugo - thinks we could start a new forum on this topic...
Thankyou very much..
But I did somehow manage to find that link on my own.. lol7V said:
VERY HELPFULL!!! The sheet I was given with inventions, dates, and peoples names said the loudspeaker was invented in 1924 (as you said) but there are many before that..
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