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#432807 - 07/11/19 04:35 PM Re: LFR1100 Active [Re: Ian]
Mojo Offline
axiomite

Registered: 01/21/07
Posts: 5943
wschwartz, that's exactly where Axiom is heading. The road there leads to active speakers first. Can you not see Ian's product roadmap in your mind's eye? smile
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M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
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#432810 - 07/12/19 07:13 AM Re: LFR1100 Active [Re: wschwartz]
Ian Offline
President
connoisseur

Registered: 03/13/01
Posts: 1301
Hi wschwartz,

The claim from Apple is that "an internal bass-EQ microphone, analyzes and compensates for the effect of the room on the bass response". The problem with this is that the microphone would need to be on you for this to work. Further you would need some sort of known bass sound to be produced by the speaker and received by the microphone to make the correction.
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#432811 - 07/12/19 08:48 AM Re: LFR1100 Active [Re: Ian]
craigsub Offline
connoisseur

Registered: 12/15/03
Posts: 1724
The best method for perfect bass that I have found to date is with Audyssey XT-32. Here are the caveats:

1. Make sure you can bypass the main speakers and only have the subwoofers eq'ed. Marantz allows this in both the 7700 and 8800 series pre-amps.

2. Make sure you follow instructions at all listening positions.

3. Make sure you select "bypass mains" in the menu.

4. Double check whether you used dynamic eq or not. Dynamic eq sets a great house curve for movies, and can be fun on AC/DC style rock, but for the most accurate, deep bass, set it to flat.

Doing the above has our EP800's flat to 11 Hz in room (yes we measured it and posted the curve at Home Theater Forum) without the EQ interfering with the performance of the main speakers.
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LFR1100 actv, LFR1100, M100, M50, VP180HP, VP150, 3xEP800, M3, EP350, ADA1000-5, ADA1500-4 + 1500-6

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#432814 - 07/12/19 02:05 PM Re: LFR1100 Active [Re: Ian]
Mojo Offline
axiomite

Registered: 01/21/07
Posts: 5943
My Onk's implementation does not allow me to by-pass the mains. I think the answer is a new pre/pro. smile
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M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#432815 - 07/13/19 01:50 AM Re: LFR1100 Active [Re: craigsub]
brwsaw Offline
connoisseur

Registered: 10/12/12
Posts: 1936
Loc: Canada
Originally Posted By craigsub
Doing the above has our EP800's flat to 11 Hz in room.


New item added to my bucket list
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Haven't had a summer this nice in a long time.

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#432818 - 07/13/19 08:57 AM Re: LFR1100 Active [Re: brwsaw]
BBIBH Offline
connoisseur

Registered: 01/10/02
Posts: 1309
Loc: Canada
Originally Posted By brwsaw
Originally Posted By craigsub
Doing the above has our EP800's flat to 11 Hz in room.


New item added to my bucket list


Yeah, that is definitely impressive!
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Mike

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#432819 - 07/13/19 09:40 AM Re: LFR1100 Active [Re: BBIBH]
rrlev Offline
veteran

Registered: 09/25/09
Posts: 123
Loc: Boston Area
Craig
Do you have any treatment to control base?
Any pictures of your room?

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#432820 - 07/13/19 02:09 PM Re: LFR1100 Active [Re: Ian]
Mojo Offline
axiomite

Registered: 01/21/07
Posts: 5943
It's 25 x 24 with 8.5 ceiling and not treated.

https://www.google.ca/amp/s/www.hometheaterforum.com/community/threads/under-1000-subwoofer-review-thread.343857/%3famp=1446124323?espv=1
_________________________
M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#432821 - 07/13/19 02:19 PM Re: LFR1100 Active [Re: Ian]
Mojo Offline
axiomite

Registered: 01/21/07
Posts: 5943
This is also good work by Craig. 19 months in, I continue to be very happy with my 800v4.

https://www.hometheaterforum.com/communi...2/#post-4451495
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M100,VP160,QS10HPx2,EP800,M5HP,M3,M50 v4
M80,VP150,QS8x4,EP600 v2
ADA-1000-2,3,1500-3
Air N2

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#432979 - 08/10/19 02:23 PM Re: LFR1100 Active [Re: Ian]
rrlev Offline
veteran

Registered: 09/25/09
Posts: 123
Loc: Boston Area
Spec says the active has a 4 ohm impedance... is that for all 5 inputs? The graph looks like it’s left over from the passive with two curves ... guess front and back (I assume the lower one is for the front ... )

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