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Anthem MRX Receivers - 300, 500, 700 Owners Thread & Tweaking Guide - Page 141

post #4201 of 14613
5/21/11 at 12:26pm
Quote:
Originally Posted by HeffeMusic View Post

Brian,
Are you talking about the AIX blue ray that came with the Oppo 83? If it is mine works fine for both DTS Master and True HD?

Yes, what is your setup 5.1 or 7.1? How did you check if DTS MA is working correctly? I am not sure why I am having issues with dts ma with the Aix disc.
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post #4202 of 14613
5/21/11 at 2:06pm
Quote:
Originally Posted by Brian-HD

Yes, what is your setup 5.1 or 7.1? How did you check if DTS MA is working correctly? I am not sure why I am having issues with dts ma with the Aix disc.
Hello,
I have a 5.1 system. I am not home now but I will ck again to make sure that one of the updates didn't change anything.
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post #4203 of 14613
5/21/11 at 2:59pm
DTS-HD MA does "special" stuff when 7.1 tracks are decoded to 5.1. The AIX Channel ID track for 7.1 DTA-HD MA is intentionally authored to reveal that this is happening so that you can confirm it is only happening when it is supposed to.

AIX did this by deliberately building in a -40dB volume reduction when the 5.1 decoding is engaged.

If the device doing the decoding is using the 5.1 decode for that 7.1 track then it will sound as if there is no audio unless you crank up the volume.

The track should only be used for level balancing with a 7.1 decode. Set the player to HDMI LPCM output and it will do a 7.1 decode since the MRX accepts 7.1 LPCM input. The Anthem will then down mix that to 5.1 for your speakers. But since that is happening after the decode the special stuff, including the authored in volume reduction, won't happen.

None of the above is a bug.
--Bob
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post #4204 of 14613
5/21/11 at 5:43pm
Quote:
Originally Posted by Bob Pariseau View Post
DTS-HD MA does "special" stuff when 7.1 tracks are decoded to 5.1. The AIX Channel ID track for 7.1 DTA-HD MA is intentionally authored to reveal that this is happening so that you can confirm it is only happening when it is supposed to.

AIX did this by deliberately building in a -40dB volume reduction when the 5.1 decoding is engaged.

If the device doing the decoding is using the 5.1 decode for that 7.1 track then it will sound as if there is no audio unless you crank up the volume.

The track should only be used for level balancing with a 7.1 decode. Set the player to HDMI LPCM output and it will do a 7.1 decode since the MRX accepts 7.1 LPCM input. The Anthem will then down mix that to 5.1 for your speakers. But since that is happening after the decode the special stuff, including the authored in volume reduction, won't happen.

None of the above is a bug.
--Bob
Thanks Bob! If Anthem down mix with LPCM from Oppo 95, I am sure this is not the core of dts? How come this is not the same with True HD from Aix disc?
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post #4205 of 14613
5/21/11 at 5:55pm
Does MRX calculates distance of speakers to listener position? I remember reading that it is not supported. It is supported in Audyssey calibration and wonder why it is not supported.

I think 700 supports HD Radio. Is HD radio needs subscription? Does it need any antenna etc? How is the quality of HD radio compared with what I can hear from Napster?

I have projector connected to hdmi output. I can't use project everytime for listening music either from USB hard drive or from HD radio. Is anybody using any other display like laptop or small tv just for music to see the folders etc? How can I make receiver to display on laptop? I guess TV can use component out.
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post #4206 of 14613
5/21/11 at 6:02pm
Quote:
Originally Posted by sukumar View Post
Does MRX calculates distance of speakers to listener position? I remember reading that it is not supported. It is supported in Audyssey calibration and wonder why it is not supported.

I think 700 supports HD Radio. Is HD radio needs subscription? Does it need any antenna etc? How is the quality of HD radio compared with what I can hear from Napster?
No it does not. This has to be imputed manually either before or after running ARC. ARC does not use this calculation in it's process and this is why you can enter the distances after if you prefer.

Here is another post.
http://www.avsforum.com/avs-vb/showp...postcount=3882
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post #4207 of 14613
5/21/11 at 6:05pm
Quote:
Originally Posted by sukumar
Does MRX calculates distance of speakers to listener position? I remember reading that it is not supported. It is supported in Audyssey calibration and wonder why it is not supported.

I think 700 supports HD Radio. Is HD radio needs subscription? Does it need any antenna etc? How is the quality of HD radio compared with what I can hear from Napster?
Measuring distances manually assures you that you get it right as opposed to relying on the software to do it and come up with something incorrect which my Denon did incorrectly with Audyssey. Using a tape measure should be in everyone's skill set
John
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post #4208 of 14613
5/21/11 at 11:38pm
Quote:
Originally Posted by Brian-HD View Post

Yes, what is your setup 5.1 or 7.1? How did you check if DTS MA is working correctly? I am not sure why I am having issues with dts ma with the Aix disc.

Is it the following disk you are referring to?

http://www.amazon.com/gp/product/B00...pf_rd_i=507846


Is it worth to buy for calibration?
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post #4209 of 14613
5/22/11 at 1:00am
Quote:
Originally Posted by Bob Pariseau View Post

DTS-HD MA does "special" stuff when 7.1 tracks are decoded to 5.1. The AIX Channel ID track for 7.1 DTA-HD MA is intentionally authored to reveal that this is happening so that you can confirm it is only happening when it is supposed to.

AIX did this by deliberately building in a -40dB volume reduction when the 5.1 decoding is engaged.

If the device doing the decoding is using the 5.1 decode for that 7.1 track then it will sound as if there is no audio unless you crank up the volume.

The track should only be used for level balancing with a 7.1 decode. Set the player to HDMI LPCM output and it will do a 7.1 decode since the MRX accepts 7.1 LPCM input. The Anthem will then down mix that to 5.1 for your speakers. But since that is happening after the decode the special stuff, including the authored in volume reduction, won't happen.

None of the above is a bug.
--Bob

Except for the fact that when you change the DTS-ES listening mode preset to anything other than N
one or Last Used it decodes the core, and thus also drops the back surrounds in a 7.1 setup.

The DTS ES setting should have no effect on 7.1 DTS material, yet it does... even without the AIX disc where core decoding is obvious due to level differences, it is easy to test out. Put on a 7.1 disc and change the DTS ES mode preset. Then say goodbye to your back surround channels.

I am not sure why the MRX is trying to post process native 7.1 DTS tracks in a 7.1 system... if this isn't a bug, I don't know what to call it.
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post #4210 of 14613
5/22/11 at 2:05am
Quote:
Originally Posted by sukumar View Post

Is it the following disk you are referring to?

http://www.amazon.com/gp/product/B00...pf_rd_i=507846


Is it worth to buy for calibration?

Yes
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post #4211 of 14613
5/22/11 at 4:07am
Quote:
Originally Posted by Brian-HD View Post


Thanks Bob! If Anthem down mix with LPCM from Oppo 95, I am sure this is not the core of dts? How come this is not the same with True HD from Aix disc?

When you play the 7.1 DTS-HD MA Channel ID track using HDMI LPCM from the Oppo BDP-95, you should get 7.1 LPCM input in the MRX (at normal volume). If you have a 5.1 speaker setup the MRX should now down mix that to 5.1. But rear channel content isn't lost in a down mix like that. It gets played in the side surrounds.

So you will hear the two rear speakers announced and played in that track.

And THAT'S how you know you are getting the full, high bit rate decode as opposed to the lossy core decode. Why? Because the core decode is only 5.1 and does not include any audio for those two rear speakers.

TrueHD is different. TrueHD has its "compatibility" track as an entirely separate, lossy track. It also does not have the same type of special stuff going on when 7.1 is decoded to 5.1. So AIX authored it differently.
--Bob
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post #4212 of 14613
5/22/11 at 4:20am
Quote:
Originally Posted by FilmMixer View Post


Except for the fact that when you change the DTS-ES listening mode preset to anything other than N
one or Last Used it decodes the core, and thus also drops the back surrounds in a 7.1 setup.

The DTS ES setting should have no effect on 7.1 DTS material, yet it does... even without the AIX disc where core decoding is obvious due to level differences, it is easy to test out. Put on a 7.1 disc and change the DTS ES mode preset. Then say goodbye to your back surround channels.

I am not sure why the MRX is trying to post process native 7.1 DTS tracks in a 7.1 system... if this isn't a bug, I don't know what to call it.

Yes that sounds like a bug in the MRX.

But the fact that this AIX track drops volume almost to Mute when you do a 5.1 decode is a feature, not a bug.

By the way, the volume drop on that track is not because you are decoding the core. The high bit rate extensions are still being decoded when you decode to 5.1. For example the LPCM is 96KHz. Its just that when the DECODER chip is asked to do the down mix, DTS-HD MA does its special tricks. So AIX built in the volume drop to make it blatantly obvious that was happening.
--Bob
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post #4213 of 14613
5/22/11 at 7:09am
To the experts - this morning, when I turned on my MRX300, I am not getting any sound from the receiver. For any HDMI source, the receiver says no signal, even though the video works fine. Everything worked perfectly fine last night.

Strangely, if I set the receiver to pass audio through to the TV, I get sound from the TV speakers. I tried updating the firmware, and the issue was still there.

Additionally, I tried an audio input with regular RCA analog input, and still no sound.

Does anyone have any ideas about what this could be? Any help would be highly appreciated.
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post #4214 of 14613
5/22/11 at 7:57am
Quote:
Originally Posted by Wixer102 View Post

To the experts - this morning, when I turned on my MRX300, I am not getting any sound from the receiver. For any HDMI source, the receiver says no signal, even though the video works fine. Everything worked perfectly fine last night.

Strangely, if I set the receiver to pass audio through to the TV, I get sound from the TV speakers. I tried updating the firmware, and the issue was still there.

Additionally, I tried an audio input with regular RCA analog input, and still no sound.

Does anyone have any ideas about what this could be? Any help would be highly appreciated.

Try unplugging the unit from the wall for about 5min then plug it back in. Also, unplug HDMI cables and re-seat them.
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post #4215 of 14613
5/22/11 at 8:12am
Quote:
Originally Posted by Wixer102 View Post

To the experts - this morning, when I turned on my MRX300, I am not getting any sound from the receiver. For any HDMI source, the receiver says no signal, even though the video works fine. Everything worked perfectly fine last night.

Strangely, if I set the receiver to pass audio through to the TV, I get sound from the TV speakers. I tried updating the firmware, and the issue was still there.

Additionally, I tried an audio input with regular RCA analog input, and still no sound.

Does anyone have any ideas about what this could be? Any help would be highly appreciated.

Hdmi should be set to AVR and not tv.
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post #4216 of 14613
5/22/11 at 8:48am
Brian, I only set it to TV to check the signal (ie, to make sure it isn't a source problem). It was on AVR, when the problem occurred.

Eric, I'll give this a shot, thanks.

UPDATE: Well, worth a shot, but no dice
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post #4217 of 14613
5/22/11 at 9:17am
Quote:
Originally Posted by Wixer102 View Post

Brian, I only set it to TV to check the signal (ie, to make sure it isn't a source problem). It was on AVR, when the problem occurred.

Eric, I'll give this a shot, thanks.

UPDATE: Well, worth a shot, but no dice

Pull out plug for about a minute. Plug back in. Push the tuner button on front panel while powering back on. This will do a factory reset. Worth a try if nothing else is working. If you do this, connect only one device to see if this worked.
John
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post #4218 of 14613
5/22/11 at 9:25am
.
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post #4219 of 14613
5/22/11 at 11:14am
Quote:
Originally Posted by Wixer102 View Post

To the experts - this morning, when I turned on my MRX300, I am not getting any sound from the receiver. For any HDMI source, the receiver says no signal, even though the video works fine. Everything worked perfectly fine last night.

Strangely, if I set the receiver to pass audio through to the TV, I get sound from the TV speakers. I tried updating the firmware, and the issue was still there.

Additionally, I tried an audio input with regular RCA analog input, and still no sound.

Does anyone have any ideas about what this could be? Any help would be highly appreciated.

This happens to me every time I switch from a multichannel to a 2.0 channel source... Nice to hear that I am not the only one experiencing this "bug / hassle" as well...

Powering down / unplugging my Dune and the MRX usually fixes the problem.
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post #4220 of 14613
5/22/11 at 11:55am
Does Anthem provide service manuals like many other companies? I would like to take a peak at the circuit schematics of MRX 700.
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post #4221 of 14613
5/22/11 at 12:57pm
How is the volume displayed in MRX 500 OR 700? Is it in db or absolute number? When I do ARC, is reference point 0 is at 75DB? I read that it is 75 db for most receivers and 85 db at theater.

What is the range of volume for these receivers?

Thanks,
Sukumar
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post #4222 of 14613
5/22/11 at 7:45pm
Quote:
Originally Posted by sukumar View Post

I think 700 supports HD Radio. Is HD radio needs subscription? Does it need any antenna etc? How is the quality of HD radio compared with what I can hear from Napster?

HD radio is supported on the US version of the MRX700. HD radio is not an internet service. It is digital radio and the quality depends on a lot of things.

In the US there is no subscription that you need to purchase.

You can read more by checking out the following two links:

http://www.hdradio.com/what-is-hd-radio

http://en.wikipedia.org/wiki/HD_Radio
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post #4223 of 14613
5/22/11 at 9:32pm
Quote:
Originally Posted by sukumar View Post

How is the volume displayed in MRX 500 OR 700? Is it in db or absolute number? When I do ARC, is reference point 0 is at 75DB? I read that it is 75 db for most receivers and 85 db at theater.

What is the range of volume for these receivers?

Thanks,
Sukumar

It is a db scale... it goes to +10db..

I find that my reference level listening level is between -26 and -20.. and it's plenty loud driving Def Tech STS towers and accompanying speakers in my 7.1 setup in my 16x23 room.
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post #4224 of 14613
5/23/11 at 7:38am
Quote:
Originally Posted by FilmMixer View Post
It is a db scale... it goes to +10db..

I find that my reference level listening level is between -26 and -20.. and it's plenty loud driving Def Tech STS towers and accompanying speakers in my 7.1 setup in my 16x23 room.
Do you have MRX 500 or 700? I am assuming that +10 db means 75db (At 0 reference level) +10 = 85 db max level that it can send to all speakers.
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post #4225 of 14613
5/23/11 at 7:48am
Quote:
Originally Posted by sukumar

Do you have MRX 500 or 700? I am assuming that +10 db means 75db (At 0 reference level) +10 = 85 db max level that it can send to all speakers.
The Anthem prepros are set so that if you calibrate for 75dB SPL using their internal test tones or ARC then "reference level" audio content input will produce 75 dB when the main volume is set to -10dB.

So if you calibrate for 75dB you can achieve commercial theater 85dB levels by raising the volume 10dB -- i.e., to a volume setting of 0dB. Most folks will find that way too loud for home theater. Many find even 75dB too loud because of what follows:

Note that PEAK content can easily be +15dB HIGHER than "reference level". So loud passages will greatly exceed 75dB when volume is set to -10dB.

I don't have an MRX but I expect they are set the same way.
--Bob
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post #4226 of 14613
5/23/11 at 7:49am
Quote:
Originally Posted by sukumar View Post
Do you have MRX 500 or 700? I am assuming that +10 db means 75db (At 0 reference level) +10 = 85 db max level that it can send to all speakers.
700..

No... 0db does not equate to reference calibration level on these receivers...

I get there at around -26 to -20 depending on the source, codec, etc... I'll have to run a source based test for you....

Listening to this at it's 0db level would put me out of the business.

Since the pre pros are THX certified, I assume they have a different ration of volume level to output.
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post #4227 of 14613
5/23/11 at 8:18am
Quote:
Originally Posted by Bob Pariseau View Post

The Anthem prepros are set so that if you calibrate for 75dB SPL using their internal test tones or ARC then "reference level" audio content input will produce 75 dB when the main volume is set to -10dB.

So if you calibrate for 75dB you can achieve commercial theater 85dB levels by raising the volume 10dB -- i.e., to a volume setting of 0dB. Most folks will find that way too loud for home theater. Many find even 75dB too loud because of what follows:

Note that PEAK content can easily be +15dB HIGHER than "reference level". So loud passages will greatly exceed 75dB when volume is set to -10dB.

I don't have an MRX but I expect they are set the same way.
--Bob

Quote:
Originally Posted by FilmMixer View Post

700..

No... 0db does not equate to reference calibration level on these receivers...

I get there at around -26 to -20 depending on the source, codec, etc... I'll have to run a source based test for you....

Listening to this at it's 0db level would put me out of the business.

Since the pre pros are THX certified, I assume they have a different ration of volume level to output.

Very interesting. I can confirm that the MRX line, unlike the Signature line of Anthem receivers does not require you to set the volume control using a SPL meter before you begin running ARC (this created some early confusion).

However I was under the impression (but have not yet asked the question of Anthem) that 0 was 85db and that -10 was around 75db. I will be very interested to here what FilmMixer finds when he measures using a true known source test tone.

I must admit, I don't think I have yet to ever, even for a few seconds, turn my receiver up past about -12... I think I would have half the neighbors, on multiple floors, of my building at my door in minutes if i did (in fact I think -12 did bring a neighbor over, and my building is incredibly well sound proofed).
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post #4228 of 14613
5/23/11 at 9:04am
Does anyone use "Flat" setting for there sub/s even if it is not capable to play below 20hz? Also, if a sub is capable to play below 20hz does the sub usually have a subsonic filter?
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post #4229 of 14613
5/23/11 at 9:20am
Quote:
Originally Posted by eric-t View Post

Does anyone use "Flat" setting for there sub/s even if it is not capable to play below 20hz? Also, if a sub is capable to play below 20hz does the sub usually have a subsonic filter?

Not recommended and if they did maybe they were ashamed to admit it after their sub exploded Subs should have a subsonic filter I believe.
John
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post #4230 of 14613
5/23/11 at 9:27am
Quote:
Originally Posted by jayray View Post

Not recommended and if they did maybe they were ashamed to admit it after their sub exploded Subs should have a subsonic filter I believe.
John

If most subs have subsonic filters is it ones that only play below 20hz?

Here is the sub is question.
http://www.epiksubwoofers.com/legend.html
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