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 Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
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? 
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Mar 2001
Posts: 1,387 Likes: 8
President connoisseur
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OP
President connoisseur
Joined: Mar 2001
Posts: 1,387 Likes: 8 |
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.
Ian Colquhoun
President & Chief Engineer
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Re: LFR1100 Active
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Joined: Dec 2003
Posts: 2,021 Likes: 1
connoisseur
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connoisseur
Joined: Dec 2003
Posts: 2,021 Likes: 1 |
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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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
My Onk's implementation does not allow me to by-pass the mains. I think the answer is a new pre/pro.
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Oct 2012
Posts: 2,021 Likes: 1
connoisseur
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connoisseur
Joined: Oct 2012
Posts: 2,021 Likes: 1 |
Doing the above has our EP800's flat to 11 Hz in room. New item added to my bucket list
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Re: LFR1100 Active
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Joined: Jan 2002
Posts: 1,473 Likes: 7
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 1,473 Likes: 7 |
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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Re: LFR1100 Active
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Joined: Sep 2009
Posts: 1,943 Likes: 101
connoisseur
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connoisseur
Joined: Sep 2009
Posts: 1,943 Likes: 101 |
Craig
Do you have any treatment to control base?
Any pictures of your room?
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
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
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Jan 2007
Posts: 10,515 Likes: 117
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,515 Likes: 117 |
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
House of the Rising Sone
Out in the mid or far field
Linearity and mid-woofers are over-rated
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Re: LFR1100 Active
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Joined: Sep 2009
Posts: 1,943 Likes: 101
connoisseur
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connoisseur
Joined: Sep 2009
Posts: 1,943 Likes: 101 |
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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