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#398351 - 11/03/13 09:50 AM Re: New LFR1100 woofer ***** [Re: Ian]
dakkon Offline
connoisseur

Registered: 02/08/04
Posts: 1844
Shawn, I called brent a ciuple weeks back and bugged him a bit. Long syory short my DSP is getting the LFR+180 reprogram all at one shot.. I think at the time I saw a post of Ian's eluding to center channel upgrades.... anyhow I think it will be a bit before I get my DSP/ woofers... but, im ok with that.

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#398916 - 11/27/13 01:24 AM Re: New LFR1100 woofer [Re: Ian]
brwsaw Offline
aficionado

Registered: 10/12/12
Posts: 976
When I first read this thread I missed the statement from Ian that the upgraded woofer for the M100 are different than the same size woofer for the high powered M80.
I also missed that Ian had referred to the M80's crossovers as being analogue. Have they be changed/are they now digital?
Just fishing for info...
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#398917 - 11/27/13 06:14 AM Re: New LFR1100 woofer [Re: brwsaw]
Ian Offline
President
aficionado

Registered: 03/13/01
Posts: 796
Hi brwsaw,

I tend to divide crossovers into three categories: analogue, active, and digital.

An analogue crossover, or high level crossover, resides in the speaker and divides the signal after amplification thereby only requiring one channel of amplification per speaker.

An active crossover uses analogue parts but divides the signal at line level before the amplifiers and therefore requires a designated amp channel for each section of the speaker (bass, mid, and treble for a 3-way)

A digital crossover divides the signal at line level also but does so using a Digital Signal Processor in the digital domain. This type of crossover also requires and amp channel for each section.

I guess then there is a fourth category which is an analogue/digital hybrid where the DSP is used to control the amplitude response of each amp channel in conjunction with an analogue crossover in the speaker. This is how the LFR series works.
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#398920 - 11/27/13 10:39 AM Re: New LFR1100 woofer [Re: Ian]
brwsaw Offline
aficionado

Registered: 10/12/12
Posts: 976
Thanks for confirming.
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#398965 - 11/30/13 09:21 AM Re: New LFR1100 woofer [Re: Ian]
JBG Offline
devotee

Registered: 06/14/02
Posts: 405
Just a thought, how would a mid speaker (5.25) fair out on the top of an lfr1100 as per the qs8's perhaps even paired with a tweeter. that would be a real omnidirectional speaker, sort of a qs8 on steroids!! maybe a LFRT1250 ?



Edited by Johnny_Be_Good (11/30/13 09:32 AM)

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#398985 - 12/01/13 09:38 AM Re: New LFR1100 woofer [Re: Ian]
BBIBH Offline
connoisseur

Registered: 01/10/02
Posts: 1032
Loc: Canada
Johnny, Castle made a speaker with an upward firing driver, and if memory serves it was a very good sounding speaker. It was called the Winchester.

Not sure that would translate to this discussion, but thought I would toss that out.
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#398987 - 12/01/13 10:28 AM Re: New LFR1100 woofer [Re: BBIBH]
JBG Offline
devotee

Registered: 06/14/02
Posts: 405
Originally Posted By: BBIBH
Johnny, Castle made a speaker with an upward firing driver, and if memory serves it was a very good sounding speaker. It was called the Winchester.

Not sure that would translate to this discussion, but thought I would toss that out.


exactly along what I was thinking.. but with perhaps along with a tweeter, see pic below

http://www.canuckaudiomart.com/details/162937-castle_winchester_serie_ii/images/200323/

http://www.soundandvision.com/content/mirage-omd-28-surround-speaker-system

why not also an omni directional center speaker (also with up firing or down firing speakers depending on installation)

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#398991 - 12/01/13 01:01 PM Re: New LFR1100 woofer [Re: Ian]
Adrian Offline
axiomite

Registered: 12/27/08
Posts: 6600
Loc: It's all about the location.
Since the Mirage OMD's have been mentioned...Andrew Welker who now works with Ian at Axiom was the designer behind those beautiful Mirages. There is likely patents that Mirage has on that particular omni-directional design, so, even though Andrew was instrumental in it's concept...
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#398992 - 12/01/13 02:13 PM Re: New LFR1100 woofer [Re: Adrian]
casey01 Offline
aficionado

Registered: 07/03/08
Posts: 761
Loc: Toronto
Originally Posted By: Adrian
Since the Mirage OMD's have been mentioned...Andrew Welker who now works with Ian at Axiom was the designer behind those beautiful Mirages. There is likely patents that Mirage has on that particular omni-directional design, so, even though Andrew was instrumental in it's concept...


Back when these "Omnidirectional" speakers were first introduced I was quite intrigued and ended up purchasing the center channel speaker that was part of the model group that went with the floor standers shown in the ad. It had two 5 and a half inch woofers with the same tweeter positioned over the small mid-range and even though it was limited by its relatively small size thus producing the usual "boxy" mid-range sound, it had, by far, the most amazing off-axis response I have ever heard in a center channel.

You could literally stand 90% off-axis, facing the side of the speaker, and the response was almost the same as sitting directly in front of it in the normal sweet spot!

Regardless of size, off-axis response is always variable to some degree in any "front-firing" center channel so I would be interested to get a response from Andrew on this and could a similar design be configured in the Axiom models that could produce a similar result as the OMD design?

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#399266 - 12/16/13 08:18 AM Re: New LFR1100 woofer [Re: casey01]
Jc Offline
aficionado

Registered: 06/27/06
Posts: 500
Loc: Sherbrooke, QC, Canada
Professional review of the LFR 1100 and M22 by 6 moons; worth reading . . .

Click . . . 6 Moons review LFR 1100 & M22
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Axiom Audio Expert / jc@axiomaudio.com
Recrutement d'Intégrateurs/Installateurs professionnels Québec

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