*Official* Marantz 2017 NR1508/1608, SR5012/6012/7012 owner's thread - Page 22 - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 4098Likes
Reply
 
Thread Tools
post #631 of 5120 Old 11-07-2017, 06:42 PM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by muscles View Post
I am using a McIntosh MC452 for the fronts, but the center is hooked straight up to the Marantz. They are all set to small with 80hz Xover.

Greg
Did you run Audyssey with the MC452 connected? If not, do so. Otherwise, suggest you either back off the master volume level to a level that doesn't result in the SR7012 shutting down or use the SC-99 to power the Center speaker and Surround speakers.
jdsmoothie is offline  
Sponsored Links
Advertisement
 
post #632 of 5120 Old 11-07-2017, 10:10 PM
Senior Member
 
dannybee's Avatar
 
Join Date: Nov 2010
Location: Perth,Australia
Posts: 452
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 284 Post(s)
Liked: 166
Have a question on auto calibration. Using my pioneer as amp to run the front two speakers and the rest with the 6012. When checking distances the centre channel is roughly 1.5 mtrs away and the L+R measure at around 13 mtrs away from MLP, would this have anything to do with what the pioneer master volume is set on before calibration, if so what should I set it to prior. Or is this just normal and don't worry about it. Thanks.

LG 65C7T - SONY BRAVIA 65"Z9D
Marantz SR6012 - Pioneer SCLX 58 - Apple 4KTV
Oppo UBD 203/205- Oppo BDP 103 - Panasonic DMP UB900
Playstation 4 - Mordaunt Short Speakers
dannybee is offline  
post #633 of 5120 Old 11-08-2017, 12:17 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by Scott Oakley View Post
I had this same exact problem. Im sorry but I dont remember how it got resolved but here's what I'd do if it happened againin order)

1. Connect entire system to another outlet.
2. Disconnect one speaker (including sub) one at a time and try power-on sequence.
3. Disconnect each source one at a time and try power-on sequence.

I will try hard to remember what I did to resolve this.

Scott
Very interesting. I performed almost the same steps yesterday. Disconnected everything from the 7012 and pulled all power plugs. Left it for an hour.

I then plugged in the 7012, connected one speaker and powered on. SILENT. I repeated this until all speakers, the 2 sources (Roku, Intel NUC) and TV were connected. At no point during this process did I hear the noise.

Several power cycles later I still didn't hear the bang. Happy camper.

This morning I switched on Spotify Connect. CRACK! What gives?

Is there a capacitor somewhere that accumulates a charge during standby and discharges at power on?
politby is offline  
Sponsored Links
Advertisement
 
post #634 of 5120 Old 11-08-2017, 03:26 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by anthonymoody View Post
Wow. That certainly sounds like a cause for concern. I see the little channel lights come on right after the sound, so it does seem related to the moment when the amps begin sending current to the speakers. Wondering - have you tried turning it on to a source that does *not* have anything connected to it? Like an Aux input or whatever.
It happens on unconnected sources also - which suggests the noise doesn't come from one of the source devices.
politby is offline  
post #635 of 5120 Old 11-08-2017, 07:32 AM
AVS Forum Special Member
 
Scott Oakley's Avatar
 
Join Date: Jan 2003
Location: Pine, Arizona
Posts: 1,015
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 250 Post(s)
Liked: 146
Cool

Quote:
Originally Posted by politby View Post
Very interesting. I performed almost the same steps yesterday. Disconnected everything from the 7012 and pulled all power plugs. Left it for an hour.

I then plugged in the 7012, connected one speaker and powered on. SILENT. I repeated this until all speakers, the 2 sources (Roku, Intel NUC) and TV were connected. At no point during this process did I hear the noise.

Several power cycles later I still didn't hear the bang. Happy camper.

This morning I switched on Spotify Connect. CRACK! What gives?

Is there a capacitor somewhere that accumulates a charge during standby and discharges at power on?
Did you try another physical outlet in the room? Try that, leaving everything else the same.

LG 2019 65" C9 OLED
Marantz SR-7012 AVR
B&W 805 Speakers
Velodyne 10" Sub Rythmik F12 Sub
TiVO Bolt
Scott Oakley is offline  
post #636 of 5120 Old 11-08-2017, 11:44 AM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by dannybee View Post
Have a question on auto calibration. Using my pioneer as amp to run the front two speakers and the rest with the 6012. When checking distances the centre channel is roughly 1.5 mtrs away and the L+R measure at around 13 mtrs away from MLP, would this have anything to do with what the pioneer master volume is set on before calibration, if so what should I set it to prior. Or is this just normal and don't worry about it. Thanks.
Set the Pioneer master volume to 80% of maximum or roughly "reference" volume prior to running Audyssey again.
dannybee likes this.
jdsmoothie is offline  
post #637 of 5120 Old 11-08-2017, 02:43 PM
AVS Forum Special Member
 
Join Date: Nov 2014
Location: New York
Posts: 6,034
Mentioned: 215 Post(s)
Tagged: 0 Thread(s)
Quoted: 4963 Post(s)
Liked: 6037
Quote:
Originally Posted by politby View Post
Very interesting. I performed almost the same steps yesterday. Disconnected everything from the 7012 and pulled all power plugs. Left it for an hour.

I then plugged in the 7012, connected one speaker and powered on. SILENT. I repeated this until all speakers, the 2 sources (Roku, Intel NUC) and TV were connected. At no point during this process did I hear the noise.

Several power cycles later I still didn't hear the bang. Happy camper.

This morning I switched on Spotify Connect. CRACK! What gives?

Is there a capacitor somewhere that accumulates a charge during standby and discharges at power on?
I don't understand why you are looking for answers here when you should be calling Marantz tech support. Sounds like a defective unit.

John
Sony 55A1E, A9F, LG CX
Marantz 7012, Ohm Walsh Speakers
Klein K10-A, Jeti 1501, Murideo Six-G Gen2
Calman Ultimate, LightSpace Pro, ISF Level III Certified
jrref is online now  
post #638 of 5120 Old 11-09-2017, 12:06 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by jrref View Post
I don't understand why you are looking for answers here when you should be calling Marantz tech support. Sounds like a defective unit.
Choked on your breakfast this morning?

This is my 4th new AVR since last November. First Pioneer was DOA. Second died last month and was replaced by #3 which arrived with a crooked chassis. That did it for Pioneer and the dealer gave me the 7012.

Because of an illness I have very limited use of my hands so unplugging, packing and shipping AVRs requires help and the family is getting tired of it. And because Pioneer #2 was having a similar issue I want to be sure it's really the AVR before I go through another replacement hassle. The dealer calls me daily to check progress.

Likewise, any troubleshooting that requires dexterity is impossible for me without help. So I'm looking for advice wherever available.
politby is offline  
post #639 of 5120 Old 11-09-2017, 05:34 AM
AVS Forum Special Member
 
rocky1's Avatar
 
Join Date: Aug 2001
Location: miami
Posts: 2,538
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 600 Post(s)
Liked: 197
Just a thought but maybe your having electrical issues with the outlets? I know someone suggested a different outlet.I would have a electrician check them out before anything else.
rocky1 is online now  
post #640 of 5120 Old 11-09-2017, 05:40 AM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by jrref View Post
I don't understand why you are looking for answers here when you should be calling Marantz tech support. Sounds like a defective unit.
Strange question considering this is the primary purpose of this thread.
anthonymoody likes this.
jdsmoothie is offline  
post #641 of 5120 Old 11-09-2017, 05:41 AM
AVS Forum Special Member
 
Join Date: Nov 2014
Location: New York
Posts: 6,034
Mentioned: 215 Post(s)
Tagged: 0 Thread(s)
Quoted: 4963 Post(s)
Liked: 6037
Quote:
Originally Posted by politby View Post
Choked on your breakfast this morning?

This is my 4th new AVR since last November. First Pioneer was DOA. Second died last month and was replaced by #3 which arrived with a crooked chassis. That did it for Pioneer and the dealer gave me the 7012.

Because of an illness I have very limited use of my hands so unplugging, packing and shipping AVRs requires help and the family is getting tired of it. And because Pioneer #2 was having a similar issue I want to be sure it's really the AVR before I go through another replacement hassle. The dealer calls me daily to check progress.

Likewise, any troubleshooting that requires dexterity is impossible for me without help. So I'm looking for advice wherever available.
Sorry, didn't know this, but all this said then you would think that it has to be something in your setup since all these AVRs are having the same problem. Only reason why i was questioning you was because to my knowledge, there have been very few issues with the 7012 and Marantz tech support is pretty good at debugging most problems.

John
Sony 55A1E, A9F, LG CX
Marantz 7012, Ohm Walsh Speakers
Klein K10-A, Jeti 1501, Murideo Six-G Gen2
Calman Ultimate, LightSpace Pro, ISF Level III Certified
jrref is online now  
post #642 of 5120 Old 11-09-2017, 06:37 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by rocky1 View Post
Just a thought but maybe your having electrical issues with the outlets? I know someone suggested a different outlet.I would have a electrician check them out before anything else.
Good point although I find it unlikely since we have an incredibly reliable feed - not even a brownout in 10 years. But of course we've had electrical work done from time to time and when contractors are involved anything is possible . But we just ruled that out by connecting the system to the UPS in my server rack and pulling the breaker so it ran on batteries only . And the noise still occurred.

I'm getting really frustrated. tonight I am going to pull all cables at the AVR end rather than just power off the sources, subs and TV.
politby is offline  
post #643 of 5120 Old 11-10-2017, 12:31 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Question

Quote:
Originally Posted by jrref View Post
...to my knowledge, there have been very few issues with the 7012 and Marantz tech support is pretty good at debugging most problems.
I guess you're right, and I'm beginning to think I am the problem

I now have an additional question that didn't come up until yesterday because I hadn't tried to watch any HDR content. I'm not getting HDR passthrough from my Roku. Is there some obscure setting I have missed? This worked fine with the Pioneer I had before.

  • Built-in apps in TV work fine
  • TV's input set to 4k HDR
  • 7012 set to Enhanced 4k signal format
  • Roku says "4k HDR display detected" (all green)
  • Testing with "Man in the high castle" on Amazon


Is there a way to get the Marantz to show what VIDEO format it is receiving and outputting? I can only bring up the audio information.
politby is offline  
post #644 of 5120 Old 11-10-2017, 04:28 AM
AVS Forum Addicted Member
 
Selden Ball's Avatar
 
Join Date: Jan 2001
Location: upstate NY
Posts: 14,842
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 4819 Post(s)
Liked: 2864
Quote:
Originally Posted by politby View Post
I guess you're right, and I'm beginning to think I am the problem

I now have an additional question that didn't come up until yesterday because I hadn't tried to watch any HDR content. I'm not getting HDR passthrough from my Roku. Is there some obscure setting I have missed? This worked fine with the Pioneer I had before.

  • Built-in apps in TV work fine
  • TV's input set to 4k HDR
  • 7012 set to Enhanced 4k signal format
  • Roku says "4k HDR display detected" (all green)
  • Testing with "Man in the high castle" on Amazon


Is there a way to get the Marantz to show what VIDEO format it is receiving and outputting? I can only bring up the audio information.
I can't help with your other questions, but additional audio and video format information is available in the menu Setup / Information
politby and jrref like this.

Selden

Marantz SR7009 avr + MM9000 amp --> Atmos 7.1.4
Fronts=NHT 2.9+AC2, FH+TM=DefTech PM1000, LCR+TM amped
Selden Ball is offline  
post #645 of 5120 Old 11-10-2017, 08:30 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by Selden Ball View Post
I can't help with your other questions, but additional audio and video format information is available in the menu Setup / Information
Too bad it takes 15 key presses to get to. I wanted to program it to a key on my Harmony
politby is offline  
post #646 of 5120 Old 11-10-2017, 08:36 AM
AVS Forum Addicted Member
 
Selden Ball's Avatar
 
Join Date: Jan 2001
Location: upstate NY
Posts: 14,842
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 4819 Post(s)
Liked: 2864
Quote:
Originally Posted by politby View Post
Too bad it takes 15 key presses to get to. I wanted to program it to a key on my Harmony
Have you tried the Marantz smartphone App? You might be able to go directly to the info page when using it.

Selden

Marantz SR7009 avr + MM9000 amp --> Atmos 7.1.4
Fronts=NHT 2.9+AC2, FH+TM=DefTech PM1000, LCR+TM amped
Selden Ball is offline  
post #647 of 5120 Old 11-10-2017, 04:53 PM
Newbie
 
michaelosity's Avatar
 
Join Date: Nov 2017
Location: San Francisco, CA
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
SR6012 Speaker Config + Controlling Heat

I just upgraded to a Marantz SR6012 and I've got a couple of general questions.

Question #1: What is an acceptable operating temperature?

The receiver runs really hot! I got the recommended T8 cooling fan from AC Infinity. The receiver seems to run in the 87-90F degree range under nominal use (Watching TV or listening to AirPlay audio at -46db). I'm not sure if that is too hot or about right.

Question #2: Should the receiver be setup as 4ohm or 8ohm when using both types of speakers?

I've got the receiver setup as 5-channel with some M&K 850 (front/center), M&K sub, and M&K 650 (rears). The 850s are 4ohms and the 650s are 8ohms.

Thanks!
michaelosity is offline  
post #648 of 5120 Old 11-10-2017, 04:57 PM
Newbie
 
michaelosity's Avatar
 
Join Date: Nov 2017
Location: San Francisco, CA
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
SR6012 Dolby Vision + On-screen Overlays

Does the SR6012 support showing the on-screen menus (volume controls, etc.) when using a Dolby Vision source?

I've got an Apple TV 4K and a LG OLED TV all configured to use Dolby Vision. It works, but I don't see the on-screen volume controls. I'm not sure if that just isn't supported or if I've got something configured incorrectly.

Thanks!
michaelosity is offline  
post #649 of 5120 Old 11-10-2017, 05:16 PM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by michaelosity View Post
I just upgraded to a Marantz SR6012 and I've got a couple of general questions.

Question #1: What is an acceptable operating temperature?

The receiver runs really hot! I got the recommended T8 cooling fan from AC Infinity. The receiver seems to run in the 87-90F degree range under nominal use (Watching TV or listening to AirPlay audio at -46db). I'm not sure if that is too hot or about right.

Question #2: Should the receiver be setup as 4ohm or 8ohm when using both types of speakers?

I've got the receiver setup as 5-channel with some M&K 850 (front/center), M&K sub, and M&K 650 (rears). The 850s are 4ohms and the 650s are 8ohms.

Thanks!
1. Below 100F should be fine.
2. Factory default 8-ohm.

Quote:
Originally Posted by michaelosity View Post
Does the SR6012 support showing the on-screen menus (volume controls, etc.) when using a Dolby Vision source?

I've got an Apple TV 4K and a LG OLED TV all configured to use Dolby Vision. It works, but I don't see the on-screen volume controls. I'm not sure if that just isn't supported or if I've got something configured incorrectly.

Thanks!
Nope.
jdsmoothie is offline  
post #650 of 5120 Old 11-10-2017, 05:27 PM
Newbie
 
michaelosity's Avatar
 
Join Date: Nov 2017
Location: San Francisco, CA
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
Quote:
Originally Posted by jdsmoothie View Post
1. Below 100F should be fine.
2. Factory default 8-ohm.



Nope.
Thank you!

Do any of the receivers out there support on-screen overlays with Dolby Vision or is that just a limitation of the SR6012?
michaelosity is offline  
post #651 of 5120 Old 11-11-2017, 02:28 AM
AVS Forum Special Member
 
politby's Avatar
 
Join Date: Nov 2006
Location: N59.45817 E18.39345
Posts: 1,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
Liked: 86
Quote:
Originally Posted by michaelosity View Post
Question #2: Should the receiver be setup as 4ohm or 8ohm when using both types of speakers?

I've got the receiver setup as 5-channel with some M&K 850 (front/center), M&K sub, and M&K 650 (rears). The 850s are 4ohms and the 650s are 8ohms.
Quote:
Originally Posted by jdsmoothie View Post
2. Factory default 8-ohm.
The manual says "Select when the impedance for any of the connected speakers is 4 Ω/ohms". 5 of my speakers are 4 Ω, 2 are 8 Ω and 2 are 6 Ω, so I set it to 4. JD, I'm inclined to trust you more than the manual and it occurred to me that this might have something to do with the cracking noise I'm getting at power on.

I suspect the setting is governing a current limiter so would it be safe for me to test it at 8 ohms?

Last edited by politby; 11-11-2017 at 03:22 AM.
politby is offline  
post #652 of 5120 Old 11-11-2017, 05:24 AM
Senior Member
 
gregcss's Avatar
 
Join Date: Jul 2010
Location: Virginia
Posts: 417
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 212 Post(s)
Liked: 62
Quote:
Originally Posted by politby View Post
The manual says "Select when the impedance for any of the connected speakers is 4 Ω/ohms". 5 of my speakers are 4 Ω, 2 are 8 Ω and 2 are 6 Ω, so I set it to 4. JD, I'm inclined to trust you more than the manual and it occurred to me that this might have something to do with the cracking noise I'm getting at power on.

I suspect the setting is governing a current limiter so would it be safe for me to test it at 8 ohms?
When I was setting up my SR6012 I did some searching on that setting since my speakers are 4ohm (design) 6ohm (nominal). The consensus was to leave any/most AVRs at the default setting of 8ohm. This is not specific to just the Marantz. I've had no issues leaving it at 8ohm.

I'd imagine that putting in 4ohm mode increases distortion and heat while the power output is increased.
gregcss is offline  
post #653 of 5120 Old 11-11-2017, 05:25 AM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by politby View Post
The manual says "Select when the impedance for any of the connected speakers is 4 Ω/ohms". 5 of my speakers are 4 Ω, 2 are 8 Ω and 2 are 6 Ω, so I set it to 4. JD, I'm inclined to trust you more than the manual and it occurred to me that this might have something to do with the cracking noise I'm getting at power on.

I suspect the setting is governing a current limiter so would it be safe for me to test it at 8 ohms?
You suspect correctly which is why you never want to change it from 8-ohm regardless of the mix of speaker impedance.
mikey94025 and politby like this.
jdsmoothie is offline  
post #654 of 5120 Old 11-11-2017, 03:09 PM
Member
 
Gonadman2's Avatar
 
Join Date: Aug 2010
Posts: 43
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 11
I'm lookng to purchase an SR6012 in the near future to expand my 7.1 system to ATMOS. I currently use a Auzen X-Meridian 7.1 2g feeding into a couple of Rotel power amps, so I'll only need to use the Marantz for the extra ATMOS channels. Is it possible to re-assign the amplifiers in the Marantz to the extra .4 channels as required, or will I be wasting the power amps on these channels?
Gonadman2 is offline  
post #655 of 5120 Old 11-11-2017, 04:14 PM
Newbie
 
pinfloid's Avatar
 
Join Date: Nov 2017
Location: Thailand
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 0
Question NR1608 - Can I use powered speakers at the Front RL?

Hi.

I am planning to buy a NR1608, but first I would like to clarify if i can use the Front RL analog outputs to connect powered speakers (instead of the powered outputs).

I am asking this because I want to make sure that those outputs are not exclusively for a second room. Therefore:
  • The internal NR1608 power amplifier will not be damaged if no load is connected to the Front RL powered output
  • The Front RL Analog Outputs are equivalent to the powered outputs (meaning that I can control the volume from the remote, the Room Correction, etc. the same as if it were the powered output)

My setup:
Front R-L: Mackie HR824 Powered Monitors (already owned)
Sub: PreSonus Temblor T8 (powered) (pending to buy)
Center: Micca MB42X-C (pending to buy)
Sub: PreSonus Temblor T8 (pending to buy)
Rear: Micca MB42X (pending to buy)

Thank you!
pinfloid is offline  
post #656 of 5120 Old 11-11-2017, 06:41 PM
AVS Forum Special Member
 
Perpendicular's Avatar
 
Join Date: May 2008
Location: California
Posts: 3,138
Mentioned: 5 Post(s)
Tagged: 1 Thread(s)
Quoted: 307 Post(s)
Liked: 146
Quick answer.

Yes, you can connect your active Mackie Monitors. You would be using the left and right output located directly above the subwoofer outputs for the main zone. In this way, you will have access to volume, Audyssey, etc.
pinfloid likes this.
Perpendicular is offline  
post #657 of 5120 Old 11-12-2017, 03:23 AM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by Gonadman2 View Post
I'm lookng to purchase an SR6012 in the near future to expand my 7.1 system to ATMOS. I currently use a Auzen X-Meridian 7.1 2g feeding into a couple of Rotel power amps, so I'll only need to use the Marantz for the extra ATMOS channels. Is it possible to re-assign the amplifiers in the Marantz to the extra .4 channels as required, or will I be wasting the power amps on these channels?
Yes. In fact the SR6012 can be used entirely as a pre/pro if you prefer, externally amping all speakers or just the 7 you have in mind.
jdsmoothie is offline  
post #658 of 5120 Old 11-12-2017, 03:27 AM
AVS Forum Addicted Member
 
jdsmoothie's Avatar
 
Join Date: Sep 2007
Location: Orlando, FL
Posts: 85,938
Mentioned: 799 Post(s)
Tagged: 1 Thread(s)
Quoted: 23673 Post(s)
Liked: 13035
Quote:
Originally Posted by pinfloid View Post
Hi.

I am planning to buy a NR1608, but first I would like to clarify if i can use the Front RL analog outputs to connect powered speakers (instead of the powered outputs).

I am asking this because I want to make sure that those outputs are not exclusively for a second room. Therefore:
  • The internal NR1608 power amplifier will not be damaged if no load is connected to the Front RL powered output
  • The Front RL Analog Outputs are equivalent to the powered outputs (meaning that I can control the volume from the remote, the Room Correction, etc. the same as if it were the powered output)

My setup:
Front R-L: Mackie HR824 Powered Monitors (already owned)
Sub: PreSonus Temblor T8 (powered) (pending to buy)
Center: Micca MB42X-C (pending to buy)
Sub: PreSonus Temblor T8 (pending to buy)
Rear: Micca MB42X (pending to buy)

Thank you!

You'll note that there is a dedicated set of Zone 2 pre-outs and main zone FL/FR pre-outs which can be connected to either powered speakers or to a more powerful external amp to provide more power to passive speakers.
pinfloid likes this.
jdsmoothie is offline  
post #659 of 5120 Old 11-13-2017, 02:29 AM
Member
 
Gonadman2's Avatar
 
Join Date: Aug 2010
Posts: 43
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 11
Quote:
Originally Posted by jdsmoothie View Post
Yes. In fact the SR6012 can be used entirely as a pre/pro if you prefer, externally amping all speakers or just the 7 you have in mind.
Just to clarify - it won't have any issues driving 11.2 channels if the FL/FC/FR/SL/SR/BSL/BSR/Sub are all externally amplified, and I am using the internal amplifiers to drive the ceiling ATMOS channels?
Gonadman2 is offline  
post #660 of 5120 Old 11-13-2017, 07:56 AM
AVS Forum Special Member
 
bigguyca's Avatar
 
Join Date: Oct 2007
Location: East Turkestan
Posts: 2,087
Mentioned: 57 Post(s)
Tagged: 0 Thread(s)
Quoted: 1351 Post(s)
Liked: 1202
Quote:
Originally Posted by gregcss View Post
When I was setting up my SR6012 I did some searching on that setting since my speakers are 4ohm (design) 6ohm (nominal). The consensus was to leave any/most AVRs at the default setting of 8ohm. This is not specific to just the Marantz. I've had no issues leaving it at 8ohm.

I'd imagine that putting in 4ohm mode increases distortion and heat while the power output is increased.
The 4 ohm setting is intended to reduce the heat generated by the unit, not increase the maximum power output level, which in fact goes down.

The 4 ohm setting causes lower voltage taps to be used from the power transformer. This is controlled by a relay. This in turn reduces the rail voltage across the power transistors. This lower voltage reduces the heat generated by the power transistors. So far, so good.

The lower rail voltages also dramatically reduces the maximum power available from the amplifier. The amplifier will clip at lower output voltages. Not so good... The amount of energy stored in the capacitors in the power supply is also dramatically reduced because that energy is proportional to the square of the rail voltage.

A good reason to use the lower impedance setting might be if the unit were used for background music in say a doctor's office or in a house with speakers spread throughout the house for background music. In these cases not much power is required so a cooler running unit, especially if the unit is in say an enclosed closed space, would be beneficial. The low impedance setting would also reduce the the electric bill, which could be important for units run much of the day.

For normal use of the unit it makes sense to use the 8 ohm setting since a higher maximum power output is available.

It might seem that the lower impedance setting would protect the AVR from overheating and damage when driven hard. This is true, but this constant protection is not actually required. While the details vary, AVR's typically have sophisticated protection systems that monitor, for example; total output current of the unit, and temperatures at various locations such as the heat sinks and around the power transistors. These systems turn on fans if available, or increase the fan speed if possible. They also change the output rail voltages just as the occurs with the 4 ohms output setting. This occurs at high outputs however when the lower rail voltage setting is actually protecting the amplifier sections from damage. The protection system will ultimately shutdown the unit if it finds the unit is in danger of damage. This protection system reinforces the recommendation that the impedance switch be set to 8 ohms and let the system protect from over current or over heating conditions.
bigguyca is online now  
Sponsored Links
Advertisement
 
Reply Receivers, Amps, and Processors

Tags
airplay , airplay problems , atmos , auro3d , bridging channels , clipping , distortion , dts:x , hdmi arc , issue , Marantz , marantz sr 6012 , marantz sr7012 , receivers , sr7012

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off