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Old 23rd June 2007, 11:17 AM   #21
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Quote:
Originally posted by jduffy


Open baffle also interest me. I listened to an amazing setup with the Hawthorne OBs and was quite impressed. The music seemed to be coming from everywhere as opposed to a sense of the stage in front you.
I've also been looking at the Hawthorne speakers... but there is a local deal for some Altec 604 + 15" woofers with a time aligned crossover. Massive box - but they sound fantastic... what to do?


Quote:
Originally posted by jarthel


and I have never asked about the sonic quality about the speakers

As I said, I want to get a "feel" of power VS efficiency rating
There are plenty of factors here - listening area, speaker efficiency, peak power...

for example a few years ago I had a pair of Adire HE10 speakers - 96dB efficient. Used a '35W' tube amp with them and they always sounded 'not so great'. Well my listening area is pretty big (an entire basement) and I was driving the amp/speakers pretty hard. I sold the speakers to a friend who has a small apartment. He gets by with a Charlize T-Amp (5W?) and they sound great in his small living room.

I come from the 'You can never have enough power' school - but there is also a reasonable limit. You obviously don't need 200Ws to drive a 106dB efficient horn tweeter unless you need to PA a football stadium!
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Old 23rd June 2007, 11:23 AM   #22
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You might also find this chart interesting.

http://home.new.rr.com/trumpetb/audio/dBexamp.html
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Old 23rd June 2007, 11:38 AM   #23
adason is offline adason  United States
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or this one

http://www.colomar.com/Shavano/spl.html
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Old 23rd June 2007, 11:40 AM   #24
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Quote:
Originally posted by adason
or this one

http://www.colomar.com/Shavano/spl.html
Hey, I like that one better, doesn't have all the little commentary on it.
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Old 23rd June 2007, 01:51 PM   #25
jarthel is offline jarthel  Australia
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very nice chart!!!

thank you
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Old 23rd June 2007, 02:53 PM   #26
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Quote:
Originally posted by radiotron
pretty straight Klipsch Heresy Mk I's
Have you tried bracing the back panel on these? The pair i had, the back could best be described as a passive radiator.

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Old 23rd June 2007, 07:48 PM   #27
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1 My amp is 2A3//SE 7W

2 My speakers are Jordan JX92 with baffle step cor. (85db)

3 My room is 12m2

4 Listing distance 2m.

5 Listening level on the low side.
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Old 24th June 2007, 09:43 AM   #28
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2 My speakers are Jordan JX92 with baffle step cor. (85db)>>

Are you using these full range? What is the circuit you have for baffle correction? What sort of cabinet and what size?

I use Monacor 130AL which are very similar and I've thought of converting to the Jordan units. I think mine are a little more sensitive, so I'm glad to hear that 7 watts is enough for you. I use 2a3 as well but PP.

Andy
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Old 24th June 2007, 12:50 PM   #29
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Hi Andy,

I use the JX92 full range in a 9l BR cabinet tuned a little under 50hz. Baffle size 30cmx40cm. Corr. is 2mh//3.9ohms.

How do you use your monacors?
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Old 24th June 2007, 01:00 PM   #30
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Hi - I use my Monacors full range in a 19 litre cabinet, bass reflex. Not sure where it's tuned at. Why do you use such a wide front baffle? It could be half that, and put the rest in the depth. Mine is long and thin.

Where are you in spain? I'm coming to Asturias soon. Andy
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