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Re: LFR1100 Active
Ian #432980 08/10/19 09:08 PM
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Axiom has not announced the specs for each driver array. I am very curious. I think those triple HP woofers will be good to 1000W average and 4000W peak.

Regarding the amplitude response, Ian posted it on these boards. The Listening Window and Sound Power are one!


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: LFR1100 Active
Ian #432981 08/11/19 02:35 AM
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I'm wondering if the front woofers impedance is way less then 4 ohms .... in that case you may get your wish ... but ... depending on the answer your average amp may not play nice with them.

Re: LFR1100 Active
Ian #432982 08/11/19 03:51 AM
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The triple HP woofer array is 4 Ohms and I think it might dip down to 3.2 Ohms in the bass region. This is no problem for an ADA-1500.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: LFR1100 Active
Mojo #433045 08/19/19 10:14 PM
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Ian Offline OP
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We have posted the correct Frequency Graph in the Specifications section of the product page for the LFR1100 Active now. Just need to do the Impedance Graph so it shows all five driver sections.


Ian Colquhoun
President & Chief Engineer
Re: LFR1100 Active
Ian #433046 08/19/19 11:04 PM
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Hot damn. Those curves signify awesomeness! Craig, you're one fortunate dude.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: LFR1100 Active
Ian #433047 08/19/19 11:08 PM
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Thanks Ian... do you have the nominal impedances for the 5?

Re: LFR1100 Active
Ian #433048 08/20/19 12:46 AM
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What's needed are impedance curves and nominal and peak power levels for the driver arrays so listeners can decide on appropriate amplification for the wee beasties.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: LFR1100 Active
Ian #433049 08/20/19 01:24 AM
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Actually at the moment I’m trying to figure out where my amps should go. High Impedences makes it easier to put all the heat in a well ventilated closet (I.e. use longer speaker cables).

Re: LFR1100 Active
Ian #433050 08/20/19 01:57 AM
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Those woofers are gonna pull 12A nominal and 25A peak. If you're going with separate amps, I'd say put the woofer amps by the LFR. Otherwise wire them with that 0000 cable I posted. smile

On the other hand, you should try to keep the signal cables as short as possible to minimize interference. I think you should hire a P.E. to investigate this and come up with stamped drawings.


A-LFR/1000-8 & 2/500v4x2
1000-3,1500-3
100,160,QS10x2,800,M5x2,M2/3/50v4
Air Force, Freedom
had v2
Re: LFR1100 Active
Ian #433052 08/20/19 02:55 PM
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I figure if the wire resistance is < then say 1/100 of the nominal speaker impedance then I'm probably in pretty good shape (damping > 100).

So for an 8 ohm speaker 12AWG copper wire is good for about 25'. Run two in parallel for 4 ohms ... etc (easier/cheaper In most cases than getting wire below 10 AWG). So for the price of a 500' spool of 12 AWG copper speaker wire I'm in business as long as there are not too many 2-4 ohm connections to be driven.

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