Previous Thread
Next Thread
Print Thread
Rate Thread
Page 14 of 32 1 2 12 13 14 15 16 31 32
Re: LFR1100 Active
Ian #432807 07/11/19 08:35 PM
Joined: Jan 2007
Posts: 7,633
Likes: 7
M
axiomite
Offline
axiomite
M
Joined: Jan 2007
Posts: 7,633
Likes: 7
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


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
wschwartz #432810 07/12/19 11:13 AM
Joined: Mar 2001
Posts: 1,375
Likes: 3
Ian Offline OP
President
connoisseur
OP Offline
President
connoisseur
Joined: Mar 2001
Posts: 1,375
Likes: 3
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
Re: LFR1100 Active
Ian #432811 07/12/19 12:48 PM
Joined: Dec 2003
Posts: 2,015
Likes: 1
C
connoisseur
Offline
connoisseur
C
Joined: Dec 2003
Posts: 2,015
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.

Re: LFR1100 Active
Ian #432814 07/12/19 06:05 PM
Joined: Jan 2007
Posts: 7,633
Likes: 7
M
axiomite
Offline
axiomite
M
Joined: Jan 2007
Posts: 7,633
Likes: 7
My Onk's implementation does not allow me to by-pass the mains. I think the answer is a new pre/pro. smile


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
craigsub #432815 07/13/19 05:50 AM
Joined: Oct 2012
Posts: 2,016
Likes: 1
B
connoisseur
Offline
connoisseur
B
Joined: Oct 2012
Posts: 2,016
Likes: 1
Originally Posted By craigsub
Doing the above has our EP800's flat to 11 Hz in room.


New item added to my bucket list




Re: LFR1100 Active
brwsaw #432818 07/13/19 12:57 PM
Joined: Jan 2002
Posts: 1,361
connoisseur
Offline
connoisseur
Joined: Jan 2002
Posts: 1,361
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!


Regards,

Mike
Re: LFR1100 Active
BBIBH #432819 07/13/19 01:40 PM
Joined: Sep 2009
Posts: 511
Likes: 11
aficionado
Offline
aficionado
Joined: Sep 2009
Posts: 511
Likes: 11
Craig
Do you have any treatment to control base?
Any pictures of your room?

Re: LFR1100 Active
Ian #432820 07/13/19 06:09 PM
Joined: Jan 2007
Posts: 7,633
Likes: 7
M
axiomite
Offline
axiomite
M
Joined: Jan 2007
Posts: 7,633
Likes: 7
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


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 #432821 07/13/19 06:19 PM
Joined: Jan 2007
Posts: 7,633
Likes: 7
M
axiomite
Offline
axiomite
M
Joined: Jan 2007
Posts: 7,633
Likes: 7
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


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 #432979 08/10/19 06:23 PM
Joined: Sep 2009
Posts: 511
Likes: 11
aficionado
Offline
aficionado
Joined: Sep 2009
Posts: 511
Likes: 11
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 ... )

Page 14 of 32 1 2 12 13 14 15 16 31 32

Moderated by  alan, Andrew, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,398
Posts432,317
Members15,419
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,437
SirQuack 13,690
CV 11,815
MarkSJohnson 11,451
Who's Online Now
1 members (CV), 251 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4