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Re: New LFR1100 woofer
dakkon #394162 06/15/13 04:36 PM
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Ian Offline OP
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Hi Dakkon,

There is a last little bit we are doing on the LFR1100 and then I will post the graph. Should be by the end of the week.


Ian Colquhoun
President & Chief Engineer
Re: New LFR1100 woofer
Ian #394172 06/15/13 07:56 PM
Joined: Jun 2003
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I'm looking forward to somebody with upgradeitis making me a sweet deal for their M80v3's.


bibere usque ad hilaritatem
Re: New LFR1100 woofer
Ian #394173 06/15/13 08:03 PM
Joined: Jul 2009
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Here's a sweet deal. too bad pickup only.


DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry
Re: New LFR1100 woofer
Gr8_White_North #394174 06/15/13 08:14 PM
Joined: Jan 2013
Posts: 309
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wow that's a smoking deal. what gives I wonder?


2 Axiom M80s v3-custom
1 Axiom VP160 v3-custom
2 Axiom QS10HP
2 Cerwin Vega CMX 12's
Pioneer SC-57
Re: New LFR1100 woofer
Ian #394175 06/15/13 08:15 PM
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im not sure but it looks like 2 ep600's in there.


DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry
Re: New LFR1100 woofer
Gr8_White_North #394176 06/15/13 08:20 PM
Joined: Jan 2013
Posts: 309
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I know, that blew me away when I saw the price. To bad I'm on the other side of Canada :p


2 Axiom M80s v3-custom
1 Axiom VP160 v3-custom
2 Axiom QS10HP
2 Cerwin Vega CMX 12's
Pioneer SC-57
Re: New LFR1100 woofer
Ian #394178 06/15/13 10:21 PM
Joined: Sep 2011
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Maybe he can't afford those plus all of the gym gear. The Axes have to go....

TAM

Re: New LFR1100 woofer
fredk #394181 06/16/13 01:49 AM
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Posts: 10,654
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Fred, the only reason that I replied to that post was the comment that the "extra throw" would allow it to "reach lower". Yesterday I had run some of Keele's equations by hand(with the help of my pocket calculator). The results I got were in close agreement with your numbers and I didn't see a good reason to discuss them further. Briefly, using Vas and Qts I got an "ideal" enclosure volume of 1.55 cu ft., using Fs and Qts a -3dB frequency of 25.9Hz and again using Fs and Qts a 31.6Hz enclosure tune.

So, the point, as I mentioned above, is simply that the Xmax isn't a controlling factor in the frequency of the extension, but rather, along with other factors(primarily the effective diameter of the woofer cone)affects maximum volume capability.


-----------------------------------

Enjoy the music, not the equipment.


Re: New LFR1100 woofer
JohnK #394183 06/16/13 04:50 AM
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Thank you John. Your post gave me a big smile.

Is it not fair to say though, that the extra xmax will help down low as well? I think I was only half wrong this time. grin

Regardless, I think this looks like a very fine woofer, however it is used.


Last edited by fredk; 06/16/13 04:52 AM.

Fred

-------
Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!
Re: New LFR1100 woofer
Ian #394201 06/17/13 01:23 AM
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I bet those new M100 can even replace a subwoofer for movie purpose. Did I am wrong because I have run a 5.0 setup (M80-VP150-QS8) for a while and never felt I missed much in the LFE.


Nad C356 DAC & C515
Axiom M3v3
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Analysis Plus Black Oval 12&10
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