The "Official" Denon AVR-4311CI/AVR-A100 thread [NO PRICE TALK] - Page 777 - AVS Forum
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post #23281 of 23296 Old 06-17-2014, 11:06 AM
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^ +1
and Bill please quit posting over on the surround thread, I have a paypal credit after selling my old Elite receiver last week, you are a bad influence
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post #23282 of 23296 Old 06-21-2014, 06:42 AM
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Hi Folks.
I have found the specifications for my speakers(Cerwin Vega 1215MkII special edition).
When the specs say "RECOMMENDED CONTINUOUS POWER: 500 watts" is that suggesting that I should be using an external 500 rms amp to take advantage of the massive 12 & 15" woofers?
The specs are a little off, my set has 2 MIDRANGE DRIVER: 6.5” Cones and does not have a rear firing tweeter also the cabinet size is a little off but other than that it's the same.

MODEL 1215 Mk II…
Circa: 1991
FREQUENCY RESPONSE: 30 Hz –24 kHz
RECOMMENDED CONTINUOUS POWER: 500 watts
SENSITIVITY: 100dB (1 watt @ 1 meter)
IMPEDANCE: 4 ohms
BASS DRIVER: (1) AIW12 12” Die-Cast frame (front firing)
(1) 15” Die-cast frame (down firing)
MIDRANGE DRIVER: (1) 6.5” Cone
TWEETER DRIVER: DT-54 1” Voice-coil Polymerdome Horn
REAR TWEETER: 3/4” Voice-coil Horn (rear firing)
CROSSOVER POINTS: 100/600/3000/12,000 Hz.
DIMENSIONS HWD: 48-7/16” X 17-1/8” X 15-3/4” (123 X 43.5 X 40 CM)
WEIGHT: 99lbs. / 45kg.


Please don't pay attention to the wiring call outs, they have since been corrected.

Any suggestions on powering the woofers would be gratefully received. Cheers! Paul K
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post #23283 of 23296 Old 07-09-2014, 12:35 PM
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So how many of you guys are experiencing the distortion on DD+?

Dolby Digital Plus and Netflix on Various AVRs

Looks like no update for the 4311

I called Denon today to see if they would consider allowing me to upgrade (for a price) to a 4520 without this issue. They we less than helpful. They basically said I would have to bring it into a Service Center for repair, wait for a diagnosis, then we'd discuss options. I'm not even sure my local service center would be able to properly diagnose this issue, without ripping my 4311 all to pieces, and keeping it for 2 weeks.

Anyone have any contacts at Denon that would be sympathetic to this issue?
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post #23284 of 23296 Old 07-09-2014, 01:23 PM
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Quote:
Originally Posted by Sam S View Post
So how many of you guys are experiencing the distortion on DD+?

Dolby Digital Plus and Netflix on Various AVRs

Looks like no update for the 4311

I called Denon today to see if they would consider allowing me to upgrade (for a price) to a 4520 without this issue. They we less than helpful. They basically said I would have to bring it into a Service Center for repair, wait for a diagnosis, then we'd discuss options. I'm not even sure my local service center would be able to properly diagnose this issue, without ripping my 4311 all to pieces, and keeping it for 2 weeks.

Anyone have any contacts at Denon that would be sympathetic to this issue?
Everyone that streams a DD+ track via Netflix should experience it...it is a known issue.
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post #23285 of 23296 Old 07-09-2014, 01:26 PM
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Everyone that streams a DD+ track via Netflix should experience it...it is a known issue.
True enough... I guess I shoulda asked how many of you experience this issue with your 4311 and want (got?) Denon to do something about it without dragging your 4311 to a service center, first?
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post #23286 of 23296 Old 07-09-2014, 01:28 PM
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True enough... I guess I shoulda asked how many of you experience this issue with your 4311 and want (got?) Denon to do something about it without dragging your 4311 to a service center, first?
Last I heard, Denon is sending out a firmware update to correct this sometime "soon".
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post #23287 of 23296 Old 07-09-2014, 01:30 PM
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Last I heard, Denon is sending out a firmware update to correct this sometime "soon".
Not, apparently, for the 4311.

Per this post:
Dolby Digital Plus and Netflix on Various AVRs
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post #23288 of 23296 Old 07-09-2014, 02:03 PM
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Not, apparently, for the 4311.

Per this post:
Dolby Digital Plus and Netflix on Various AVRs
Weak. I guess I will be contacting them...
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post #23289 of 23296 Old 07-09-2014, 02:08 PM
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I watch a number of shows on Netflix using my 4311 and have never heard any distortion. Known issue yes, all hearing not yet.
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post #23290 of 23296 Old 07-09-2014, 02:20 PM
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Weak. I guess I will be contacting them...
Maybe you'll have luck taking to a supervisor? I talked with David at Denon, and was not at all satisfied with his suggestions to take it in for repair, first. It did not appear that he was familiar with the issue.
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I watch a number of shows on Netflix using my 4311 and have never heard any distortion. Known issue yes, all hearing not yet.
It's a warbling issue that I hear, mainly on the center channel/dialog. Make sure your netflix device is actually bitstreaming DD+, i.e. not AppleTV.
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post #23291 of 23296 Old 07-09-2014, 02:23 PM
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I watch a number of shows on Netflix using my 4311 and have never heard any distortion. Known issue yes, all hearing not yet.
It is not a problem on all DD+ streams. There are several episodes of House of Cards that will exhibit the problem. Some precise episodes can be found by searching this forum.
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post #23292 of 23296 Old 07-09-2014, 02:25 PM
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Maybe you'll have luck taking to a supervisor? I talked with David at Denon, and was not at all satisfied with his suggestions to take it in for repair, first. It did not appear that he was familiar with the issue.


It's a warbling issue that I hear, mainly on the center channel/dialog. Make sure your netflix device is actually bitstreaming DD+, i.e. not AppleTV.
Thanks Sam - I knew I should have pointed that out. I always bitstream Netflix from my Oppo and I do know the difference between DD+ and stereo
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post #23293 of 23296 Old 07-09-2014, 02:38 PM
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It is not a problem on all DD+ streams. There are several episodes of House of Cards that will exhibit the problem. Some precise episodes can be found by searching this forum.
Actually my favorite show and didn't notice an issue watching the first two seasons - a number of episodes more than once. No doubt it is there, just so for not for me so far and I'm not one to go looking for problems. Like looking for DSE on my plasma, better things to focus on with my a/v time. Regardless I am buying a new Atmos receiver later this year, my 4311 has been an outstanding performer for past 3 years I have been using it. Bug or not it will be a non-issue for me, but I wouldn't hesitate to recommend a well maintained used 4311 for anyone looking for a very good used receiver option now or later.
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post #23294 of 23296 Old 07-09-2014, 02:55 PM
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Actually my favorite show and didn't notice an issue watching the first two seasons - a number of episodes more than once. No doubt it is there, just so for not for me so far and I'm not one to go looking for problems. Like looking for DSE on my plasma, better things to focus on with my a/v time. Regardless I am buying a new Atmos receiver later this year, my 4311 has been an outstanding performer for past 3 years I have been using it. Bug or not it will be a non-issue for me, but I wouldn't hesitate to recommend a well maintained used 4311 for anyone looking for a very good used receiver option now or later.
If you don't notice, then more power to you. Your cookie is in the mail.

At the low volume levels it might not be noticeable...however, at the higher volume levels it is like nails on a chalkboard...hard to miss.

For those wanting to hear the issue, just add "The Nightmare Before Christmas" to your Instant Queue and the issue will exhibit itself right as the title of the movie is showing (you can hear it in the center channel). Again, the AVR needs to be doing the decoding.

Last edited by Nickff; 07-09-2014 at 06:35 PM.
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post #23295 of 23296 Old 07-09-2014, 05:11 PM
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Once you hear it you can't unhear it. Whether the volume is low or high you can still hear it.
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post #23296 of 23296 Old Yesterday, 01:18 PM
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Regarding the DD+ issue:

I have chatted, called several times, spoken with a product-support manager, and emailed...

They all say a firmware update has addressed the issue for the 4311. I updated my firmware this morning and the issue is still there (I knew it would be but just so I could tell them I did it).

The product support team truly believes all affected AVRs were fixed via firmware updates.

I don't see this going anywhere.

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