Anthem MRX Receivers - 300, 500, 700 Owners Thread & Tweaking Guide - Page 562 - AVS | Home Theater Discussions And Reviews
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post #16831 of 16846 Old 04-03-2015, 01:45 PM
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Hey guys, if you are running a 7.1 setup, what do you have your settings at to make the rears work even if it is only a 5.1 signal? essentially i want all 4 rears working even if it is only a 5.1 signal.

What do i leave, what do i change etc.

Thanks!
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post #16832 of 16846 Old 04-04-2015, 08:29 PM
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Push the audio button twice and scroll to pliix movie. You can also go through the menu and change default to pliix movie for 5.1 sources.
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post #16833 of 16846 Old 04-16-2015, 03:40 AM
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Hi

I've set up an MRX 300 for the first time and wondering whether anyone has any advice on settings, speaker placement etc. In particular I note that the fronts appear to have a large spike below around 100Hz. I was also surprised that the MRX has classified my fronts as small.

Iā€™m using the MRX 300 as a pre-amp to an Arcam A18 driving a pair of Spendor BC1 floorstanders. Centre speaker (Spendor C3) and surrounds (Monitor Audio Radius 45) are driven by the MRX 300. Sub is a BK XLS200 MK1.

Level calibration as follows:
Dolby volume off
DVCO 0
Front left +3dB
Center +1dB
Front right +1dB
Surround right -1dB
Surround left -2dB
Movie sub -2dB
Music sub -2dB

Movie/Music config:
Front small 100Hz
Center small 60Hz
Surround Small 120Hz
Aux None
Sub On

Thanks in advance for any help!
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post #16834 of 16846 Old 04-16-2015, 03:44 AM
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Those Spendors have FR of around 55hz, so yes small is correct. I wouldn't set them any lower than 60hz.

The center wouldn't set lower than 70hz.

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Bose Jewel speakers.
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post #16835 of 16846 Old 04-17-2015, 08:33 AM
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Quote:
Originally Posted by fatbottom View Post
Those Spendors have FR of around 55hz, so yes small is correct. I wouldn't set them any lower than 60hz.

The center wouldn't set lower than 70hz.
Thanks. If I change the crossover do I need to run ARC again? I presume not.

Any other feedback or suggestions?
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post #16836 of 16846 Old 04-17-2015, 08:58 AM
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Quote:
Originally Posted by abr1 View Post
Thanks. If I change the crossover do I need to run ARC again? I presume not.

Any other feedback or suggestions?
The reason ARC set your main xover to 100hz
Is that you have a lot of boundary gain/reinforcement.

I would NOT lower the xover.

You need to work on the placement of your L/R speakers.
Try to pull them out from the walls and/or get them
Away from corners. Then redo the ARC program.
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post #16837 of 16846 Old 04-17-2015, 09:19 AM
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Quote:
Originally Posted by 04rex View Post
Hey guys, if you are running a 7.1 setup, what do you have your settings at to make the rears work even if it is only a 5.1 signal? essentially i want all 4 rears working even if it is only a 5.1 signal.

What do i leave, what do i change etc.

Thanks!
If you set yours up as follows in the Listening Mode Presets menu you'll use all four surrounds (except DD-EX and DTS-ES will use 3 or 4 surrounds depending on the mix).

It's very important that you set 5.1 DTS to Last Used and DTS-ES to None. If you have 5.1 DTS set as Last Used and DTS:ES set to Same as DTS 5.1 , your DTS-MSTR 7.1 movies will default to 5.1 and and you'll have to use the audio button to set them to 7.1 for every movie and turning off the receiver will reset to 5.1 for DTS-MSTR 7.1.

2.0 Dolby Digital Surround - PLIIx Movie
Muilti Channel PCM - PLIIx Movie
5.1 Dolby Digital - PLIIx Movie
Dolby Digital Surround EX - None
5.1 DTS - Last Used
DTS-ES- None

"What do you mean it's too loud? My ears aren't even bleeding yet!"

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post #16838 of 16846 Old 04-17-2015, 10:31 AM
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Thanks grasshoppers. I will have a play with the L/R placement and remeasure.
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post #16839 of 16846 Old 04-18-2015, 07:00 PM
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Thank you Legairre!!
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post #16840 of 16846 Old 04-19-2015, 10:44 AM
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Quote:
Originally Posted by Legairre View Post
If you set yours up as follows in the Listening Mode Presets menu you'll use all four surrounds (except DD-EX and DTS-ES will use 3 or 4 surrounds depending on the mix).

It's very important that you set 5.1 DTS to Last Used and DTS-ES to None. If you have 5.1 DTS set as Last Used and DTS:ES set to Same as DTS 5.1 , your DTS-MSTR 7.1 movies will default to 5.1 and and you'll have to use the audio button to set them to 7.1 for every movie and turning off the receiver will reset to 5.1 for DTS-MSTR 7.1.

2.0 Dolby Digital Surround - PLIIx Movie
Muilti Channel PCM - PLIIx Movie
5.1 Dolby Digital - PLIIx Movie
Dolby Digital Surround EX - None
5.1 DTS - Last Used
DTS-ES- None
I think the defaults that Anthem chose here were not in line with how most people expected the receiver to behave. I remember having to go in and set most options to Last Used or None as well.
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post #16841 of 16846 Old 04-19-2015, 04:41 PM
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On grasshoppers' advice I played with the placement of my L/Rs due to observed boundary gain. Unfortunately I've taken them as far away from the walls/corners as possible in light of the constraints of the room (or rather family) and they are still showing a spike at the low end but at least ARC brought the crossover down from 100Hz to 60Hz. New L/R charts attached.


A few notes:
- I'm hearing my L/R speakers differently now when listening to stereo music. Controversially, in my mind at least, I am using the sub for stereo but because of the previous boundary gain that ARC is now correcting for, the bass is far more subtle.
- I was using an Arcam rDAC connected straight to a stereo amp, but using the Anthem instead I hear no discernible difference, so will be ditching the rDAC in favour of the Anthem's DAC
- When I have time I will try and compare with and without my Arcam A18 amp for the fronts; perhaps this is now an expensive and unnecessary addition to the MRX...
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post #16842 of 16846 Old 04-19-2015, 07:34 PM
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Quote:
Originally Posted by abr1 View Post
On grasshoppers' advice I played with the placement of my L/Rs due to observed boundary gain. Unfortunately I've taken them as far away from the walls/corners as possible in light of the constraints of the room (or rather family) and they are still showing a spike at the low end but at least ARC brought the crossover down from 100Hz to 60Hz. New L/R charts attached.


A few notes:
- I'm hearing my L/R speakers differently now when listening to stereo music. Controversially, in my mind at least, I am using the sub for stereo but because of the previous boundary gain that ARC is now correcting for, the bass is far more subtle.
- I was using an Arcam rDAC connected straight to a stereo amp, but using the Anthem instead I hear no discernible difference, so will be ditching the rDAC in favour of the Anthem's DAC
- When I have time I will try and compare with and without my Arcam A18 amp for the fronts; perhaps this is now an expensive and unnecessary addition to the MRX...
Your main speaker graphs look much better now.
Well done Sir! You are probably correct, before moving
Your speakers and running ARC you were used to
Hearing bloated bass due to placement gain.
FWIW I had the same issue with my mains.

In my opinion the differences in DAC's are negligible
Compared to what ARC can do to what you hear.
Also, be advised if you use an external DAC to analog
The MRX will redigitize the analog signal and the
Process it with ARC and its own DAC!
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post #16843 of 16846 Old 04-19-2015, 09:28 PM
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Quote:
Originally Posted by grasshoppers View Post

be advised if you use an external DAC to analog
The MRX will redigitize the analog signal and the
Process it with ARC and its own DAC!
For stereo music I was passing from the rDAC straight to the Arcam A18 stereo amp, I.e. by-passing the MRX entirely. Thanks for taking the time to look and for your feedback.
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post #16844 of 16846 Old 04-19-2015, 10:08 PM
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Quote:
Originally Posted by abr1 View Post
For stereo music I was passing from the rDAC straight to the Arcam A18 stereo amp, I.e. by-passing the MRX entirely. Thanks for taking the time to look and for your feedback.
LOL, if I had read a bit slower I would
Have caught that in your previous post.
Sorry.

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post #16845 of 16846 Old 04-20-2015, 07:55 AM
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Posted in wrong forum.

Last edited by smile; 04-22-2015 at 04:47 PM. Reason: Wrong forum.
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post #16846 of 16846 Old Today, 07:31 PM
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^^You may get more responses if you post your mrx510 question here: Anthem MRX Receivers - 310, 510, 710 Owners Thread & Tweaking Guide
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