Owners Thread Cambridge Audio 651r/751r - Page 22 - AVS Forum
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post #631 of 659 Old 06-26-2014, 03:59 AM
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Worth upgrading from Azur 540R

Hi Chaps

I am downsizing my hifi from hi-end gear as I wasn't listening to it that much and the cash could be better used elsewhere.

I have thus brought my Azur 540R back into service. I am pleasently surpised how nice it sounds with my old Ruark epilouges stand-mounters and BK XLS400 sub.

I was wondering, apart from the obvious support for HDMI and newer audio formats (both of which I can live without), I wondered if the 551R would sound noticably better than the 540R?

Also, how does the 651R compare to 551R in SQ as here in the UK it is double the price?

Thanks

Adrian
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post #632 of 659 Old 06-26-2014, 11:14 PM
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Hi,

I've recently gotten a 751r, having read through all the helpful posts in this thread. As everyone says, it's a bit of a cantankerous beast, but it's all worth it for the sound quality! I have a couple of questions I thought you guys may have come across:

a) I have a HDMI feed (audio + video) into the receiver, and HDMI output to my Samsung smart tv. Sometimes I use the TV to browse my media, and then want to turn it off to just listen to music. When I turn off the TV it actually interrupts the music for 5 or so seconds and then re-locks onto it. Why would removing an *output* affect how the receiver gets its input? The PCM stream (PCM 2/0) stays the same after re-locking; though I do find the PC volume mixer no longer applies (as I found out in one eardrum-popping discovery, going from 15% output to 100% after the TV turned off! Still recovering from that one...)

If I then turn the TV back on, the music interrupts again and doesn't return unless I go to the PC, stop playback and start again. So some kind of syncing issue perhaps? Or it's changing to bitstream or WASAPI or something?

b) In speaker settings, I set subwoofer to 'yes' and L/R to 'small'. If I toggle stereo mode to no longer use the subwoofer, does it automatically set the L/R speakers to 'large'? Going back into the OSD it still just says sub yes, speakers small. It sounds bassy enough to my ears, but atm I'm leaving speakers on 'large' in any case and I haven't observed any issues.

Thanks!
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post #633 of 659 Old 06-30-2014, 04:43 PM
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Antimode 8033 Cinema

Given the 751r Audyssey 2EQ is anyone using an Antimode 8033 Cinema DSP to manage the sub? If so, could you please provide an insight into the configuration and improvements.
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post #634 of 659 Old 06-30-2014, 04:52 PM
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Quote:
Originally Posted by glinkot View Post
Hi,

I've recently gotten a 751r, having read through all the helpful posts in this thread. As everyone says, it's a bit of a cantankerous beast, but it's all worth it for the sound quality! I have a couple of questions I thought you guys may have come across:

a) I have a HDMI feed (audio + video) into the receiver, and HDMI output to my Samsung smart tv. Sometimes I use the TV to browse my media, and then want to turn it off to just listen to music. When I turn off the TV it actually interrupts the music for 5 or so seconds and then re-locks onto it. Why would removing an *output* affect how the receiver gets its input? The PCM stream (PCM 2/0) stays the same after re-locking; though I do find the PC volume mixer no longer applies (as I found out in one eardrum-popping discovery, going from 15% output to 100% after the TV turned off! Still recovering from that one...)

If I then turn the TV back on, the music interrupts again and doesn't return unless I go to the PC, stop playback and start again. So some kind of syncing issue perhaps? Or it's changing to bitstream or WASAPI or something?

b) In speaker settings, I set subwoofer to 'yes' and L/R to 'small'. If I toggle stereo mode to no longer use the subwoofer, does it automatically set the L/R speakers to 'large'? Going back into the OSD it still just says sub yes, speakers small. It sounds bassy enough to my ears, but atm I'm leaving speakers on 'large' in any case and I haven't observed any issues.

Thanks!

a) sounds like you are having issues with HDMI ARC. Either try disabling ARC in the 751r or use an HDMI input on the TV which is not ARC enabled (ie. any input other than HDMI 1).


b) I have not tried it but I don't think the 751r would be 'intelligent' to reset the speaker configurations subject to you changing the subwoofer setting. In fact, the last thing I would want is for the 751r to second guess settings based on a changed configuration.
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post #635 of 659 Old 06-30-2014, 09:51 PM
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Thanks for that, much appreciated. ARC was definitely a factor early on - in fact turning the TV on made the receiver turn off also, and I had to turn off various CEC options (AnyNet) on the TV to stop it. I'm pretty sure I've tried this on the non ARC TV outputs but I'll give it another go. The only thing is, I'd actually like ARC to operate, so we can listen to the TV via that. I could just use the separate optical out from the TV for that though I guess.
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post #636 of 659 Old 07-26-2014, 11:50 AM
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I'm running into my first problem with my 751R, and the timing is really unfortunate as I think it's going to require repair work and I currently have a broken ankle.

My 751R didn't turn on this morning when I fired up the system. The blue power light was on, so I manually pressed the power button with no results.

I unplugged the unit for about 15 seconds, plugged it back in and it powered up just fine. About 15 minutes later I left the room for a moment and came back to find it off again. Same problem, same process, same results.

Then I was in the room 15 minutes later when it did the same, and I heard a click that sounds like a relay just as the unit turned off.

Has anyone experienced this before? The top of the unit is clear, ambient temp in my house is upper 70s - lower 80s right now and I don't see any obvious problem.

Mike
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post #637 of 659 Old 07-26-2014, 06:22 PM
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Howdy msimanyi,

No, I haven't as yet experienced a problem like that.

And yep, sadly this seems to me that this may be the start of a power issue with your 751r receiver.

When I first read your post I initially thought that maybe it is the auto power shut-off feature which activates if there is no audio detected for a period of time. I know my receiver has automatically shutdown on occassion when I have been distracted for a while and nothing being playing, and/or a movie on pause or such like.

I remember reading it in the manual, too but that was a while ago. So after reading your post I turned my receiver on and left it on idle, and started browsing through the manual. And eventually I found it: at the end of the manual on page 38 (looking at the PDF manual - should be the same for the hard copy manual) there is the heading Auto Power Down. And there it states that if no audio is detected for 30 minutes then the receiver will auto power off (go into standby). I was hoping for you it would have stated 15 minutes as that could have been a possible answer to your query. But no, it says 30 minutes.

Secondly, I hoped then, that the auto power off feature might be customizable, that is, one can increase or decrease the duration of the time period before the receiver shuts down. But no, there isn't. All it has is the feature to either enable or disable the Auto Power Down.

Check in the onscreen display (OSD) and see if your Auto Power Down is enabled or disabled (hopefully your unit won't shutdown in the middle of doing this). You will find it under the audio settings, and then the Advanced Audio Setup. Use the arrow keys of your remote to toggle it from enabled to disabled. If you want to experiment and do some minor trouble shooting try disabling it (if it is enabled) and see if the problem still occurs. I think it won't make a difference. But if you find that it now stays on then you have possibly isolated the premature shutdown issue to that part of the receiver. Maybe.

But as mentioned at the outset, yes, I think there is a power issue. And it may be heat related in that your receiver is overheating too much - I noted your comment regarding the ambient room temperature and the unit's position so it seems to me that isn't contributing to any heat issue. And incidently if this is the case you should get a message on the receiver's display stating Protection Overload as per the IMPORTANT message on page 5 of the manual. Mind you, that is related to playing the receiver at a very high level thus generating the heat necessary to trigger that warning. If this is the case then the receiver will also go into standby mode. But if it isn't heat related then it is probably a failed or failing electronic component.

Well, not sure if what I have typed is of use. But those are the things I would consider.

Failing all of the above (or more likely regardless of the above), then it may be a trip down to the authorised repair shop.

Hope it works out eventually.

(took me a while to type this and at 25 minutes of idle time my receiver is still on)

Another one bites the dust...

Last edited by Asterus; 07-26-2014 at 06:27 PM.
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post #638 of 659 Old 07-27-2014, 10:07 AM
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Thank you, Asterus.

I need to clarify a couple points. I forgot about the international membership on these forums. The 70-80 degree temperatures are in Fahrenheit, so heat isn't an issue.

In this particular case, I was/am using the 751R to watch television and the volume control is only set to -40 db, so that eliminates the factor of overdriving the power supply and/or amplifier circuits.

I did check the auto power down option, and I had already disabled it.

It's really appearing I have an issue. I'll have to pull out the box and invoice. I think the unit is less than a year old, so I should be able to have this done under warranty.

On a side note, it's incredibly frustrating to watch the Tour de France and have the TV shut off every 10-15 minutes!

Mike
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post #639 of 659 Old 08-14-2014, 12:11 PM
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Do you guys use the inbuilt White Noise test tones for setting speaker levels, or use Pink Noise from a disc such as Spears & Munsil?
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post #640 of 659 Old 08-24-2014, 01:30 AM
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hello
I have a problem with a 351r.
When I switch on the unit with the remote, it starts up and sound works, but the front display is not lit. Try unplugging etc, but the problem stays for a few day. Then after a few days everything works again. This happened a few times over a couple of years.
Anyone with the same problem, also on higher end versions? Or anyone can think of reasons/solutions?
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post #641 of 659 Old 09-05-2014, 07:41 AM
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This week I received the first 751R v2 in Australia.

I would like to pass on my comments on frustrations with trying to get this thing set up in case others have the same problems.

First comment: This receiver is VERY picky about the HDMI cables you use. I found this out the hard way after buying what I thought were high quality cables only to find that the 751 could not communicate with either my late model Samsung TV or the Cambridge Bluray I'm using. The TV would not recognise that the receiver was connected and the receiver would not recognise that it was receiving a bitstream multi channel input from the cambridge 751BR.

Second comment: Do not run more that one connection for each input device. I was using separate outputs from my cable tv box into the TV and into the receiver. I also was running separate outputs from the 751BR into the TV and the receiver. Until I reconfigured and only used a single HDMI output into the receiver directly, I could not fix the problems noted above.

Third comment: Although the manual recommends connecting the 751BR to the 751R using both the HDMI and the direct analogue connections, this will not work. I found that until I disconnected the analogue connection and just used the HDMI, I could not get the receiver to with to multichannel audio when watching movies. Also I have not been able to get the 751BR and 751R to communicate using the 7.1 direct button and the analogue connections between the units.

Fourth comment: Although this is not the receivers fault per se, I cannot get Audessy calibration to work as it consistently reports errors when trying to do the auto calibration process.

So, just as has been reported before, this is a cantankerous beast despite the sound quality. It has taken 5 days but I now have the unit functioning as it should albeit without the Audessy facility.

Hope this helps others.
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post #642 of 659 Old 09-05-2014, 12:03 PM
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Yes this helps. 751r was on my list, think I'll cross it out.

Thanks
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post #643 of 659 Old 09-07-2014, 03:21 AM
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Quote:
Originally Posted by ariston View Post
This week I received the first 751R v2 in Australia.

I would like to pass on my comments on frustrations with trying to get this thing set up in case others have the same problems.

First comment: This receiver is VERY picky about the HDMI cables you use. I found this out the hard way after buying what I thought were high quality cables only to find that the 751 could not communicate with either my late model Samsung TV or the Cambridge Bluray I'm using. The TV would not recognise that the receiver was connected and the receiver would not recognise that it was receiving a bitstream multi channel input from the cambridge 751BR.

Second comment: Do not run more that one connection for each input device. I was using separate outputs from my cable tv box into the TV and into the receiver. I also was running separate outputs from the 751BR into the TV and the receiver. Until I reconfigured and only used a single HDMI output into the receiver directly, I could not fix the problems noted above.

Third comment: Although the manual recommends connecting the 751BR to the 751R using both the HDMI and the direct analogue connections, this will not work. I found that until I disconnected the analogue connection and just used the HDMI, I could not get the receiver to with to multichannel audio when watching movies. Also I have not been able to get the 751BR and 751R to communicate using the 7.1 direct button and the analogue connections between the units.

Fourth comment: Although this is not the receivers fault per se, I cannot get Audessy calibration to work as it consistently reports errors when trying to do the auto calibration process.

So, just as has been reported before, this is a cantankerous beast despite the sound quality. It has taken 5 days but I now have the unit functioning as it should albeit without the Audessy facility.

Hope this helps others.
Hi ariston
Very interested in your comments about how PICKY the 751R is about the HDMI cables connected to it. I am also in Australia and very interested in a CA 651R model which may have similar problems. HDMI cables seem to a lot more expensive in Aust. than overseas so can't afford to get it wrong. What did you finish up buying to get your components communicating with each other?

I had a similar problem last year trying to connect a new Panasonic DMR HW220GLK PVR set box to my Fujitsu Plasmavision TV which at that stage was about years ago and, from what I can determine, running v1.2a HDMI even though all versions are supposed to be backward compatible but performance is dictated by capabilities of older version.
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post #644 of 659 Old 09-07-2014, 04:55 AM
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I made sure all my cables were 1.4 and have had none of the issues you describe. And the cables were all less than $10 - provided you have quality connectors I don't think the cable quality makes much difference. My 752bd connects to the 751r by stereo, HDMI and 7.1. The PC connects by HDMI and USB. The ps3 by HDMI. I use a programmed Logitech harmony to process all the connection options.

The Samsung ps60e8000 uses HDMI cables to connect both the 751r and 752bd.

Last edited by TripleFun; 09-07-2014 at 04:58 AM. Reason: tv update
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post #645 of 659 Old 09-08-2014, 04:04 AM
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Hi,
I have a 751V2 loan from my dealer to test it as i already have a 851 combo for stereo.
I connect the pre out from 751 to 851 pre and the sound is amazing.
My biggests complains are related to few options with HDMI, especialy no passthrough on standby.

I ask him to send me a pioneer lx58 to compare to the CA.

Kocl
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post #646 of 659 Old 09-08-2014, 06:16 AM
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Hi Spencer

The HDMI cables I bought were the "Sonic" house brand from JBHifi at $50 each. The box said they were high sped, bla bla ... The new 751 has HDMI chips that meet the 1.4a standard for 4k video. I eventually bought some HDMI cables via ebay that were specified for 1.4 at $17 and these seemed to do the trick. Cost is no indicator of quality!

As to may second point, and with respect to TripleFun, I can only report on my experience. Remember this is the new version with the new HDMI chips. I don't know if this is the reason for my problems. I spoke with the dealer and the importers tech support numerous times and basically they were dumbfounded as I seemed to be doing everything as recommended in the instructions. It wasn't until I made changes to cables and wiring that I got it to work.

Now that it is working I am enjoying the result. I played the Bluray of Godzilla last night and the whole house was vibrating to the bass - yet the volume was at -30! So if you invest and are prepared to wrestle with the setup I'm sure you will be rewarded in the end.
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post #647 of 659 Old 09-11-2014, 03:30 PM
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Owners Thread Cambridge Audio 651r/751r

It's possible to use hdmi out to zone 2 with video and audio?


Enviado do meu iPhone usando o Tapatalk

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post #648 of 659 Old 09-21-2014, 12:03 AM
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Quote:
Originally Posted by msimanyi View Post
I'm running into my first problem with my 751R, and the timing is really unfortunate as I think it's going to require repair work and I currently have a broken ankle.

My 751R didn't turn on this morning when I fired up the system. The blue power light was on, so I manually pressed the power button with no results.

I unplugged the unit for about 15 seconds, plugged it back in and it powered up just fine. About 15 minutes later I left the room for a moment and came back to find it off again. Same problem, same process, same results.

Then I was in the room 15 minutes later when it did the same, and I heard a click that sounds like a relay just as the unit turned off.

Mike
Yes, I had the same problem. The unit required repair. I complained directly to Cambridge Audio about the shoddy quality of their products, and they said that "electronics can fail at any time, regardless of their age." My unit was four months old when it failed.
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post #649 of 659 Old 09-23-2014, 10:19 PM
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Hello again. I'm still interested in the V2-Version of the 751. in the meantime, there are a few owners here ? Would be thankful for some sound descriptions especially stereo audio performance. Has it the "normal cambridge punch" ? And: How is the DAC-Quality (are there new chips inside?).

@Kocl : Did you made the Pio comparison ?

Thanks.
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post #650 of 659 Old 09-24-2014, 12:43 AM
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Quote:
Originally Posted by yettocome View Post
Hello again. I'm still interested in the V2-Version of the 751. in the meantime, there are a few owners here ? Would be thankful for some sound descriptions especially stereo audio performance. Has it the "normal cambridge punch" ? And: How is the DAC-Quality (are there new chips inside?).

@Kocl : Did you made the Pio comparison ?

Thanks.
HI, yes i have a 751V2 for testing. Is a excelente machine regarding audio. It has all the cambridge sound, it integrates very well with my CA 851E+W. The sound is much better than pioneer, more full and rich. I dont use it in stereo.

The bottom line is the video component, it doesn't do half of things that a low end pioneer ou yamaha do. No standby passthrough, no standby switching. This was the reason for choosing the pioneer over the CA.

Kocl
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post #651 of 659 Old 09-24-2014, 10:47 AM
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Thanks, hope my dealer will get soon a test exemplary.
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post #652 of 659 Old 09-25-2014, 07:12 PM
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Hi!

I´m new to this forum and I´d like to share a problem that is driving me crazy with a brand new 651r. I bought this unit about one month ago to be used as a HTPC mainly. I have two Intel i3 NUCs, one with HD4000 and the other with HD4400 graphics (GPU) both running windows7 64bits/xbmc. The problem I have is that when connecting the NUCs to the 651r (any of the 4 hdmi input ports) and TV through the 651r hdmi A or B ports , I can only get 720p resolution. I have replaced everything, TV, cables and it doesn´t work. I have borrowed a Marantz sr6008 for tests and it all worked perfectly so my conclusion is that the 651r is the real cause of the problem.
First I have contacted Intel and after some troubleshooting they have suggested me to ask CA for a new firmware to fix the problem. I then went for the CA support and they simple told me that they would raise an engineering note. This is funny because they didn´t ask me for any details like, versions, fw, how to simulate the issue, etc... I requested information regarding latest FW for my unit and not only this I´ve got. I found out that my unit is not in the latest version reading this forum.

I´m really disappointed and frustrated. I have spent around $2K for a supposedly top product that should at least make the basics and with a minimum level of support. If anyone has any clue on how to fix this I´d really appreciate.

Current FW: 1.46/1.45/1.09
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post #653 of 659 Old 09-27-2014, 05:07 PM
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AZURE 540R HDMI issue

Hi Everyone.
I have a brainbreaker to share about not having video through my Cambridge HDMI (switch)
I'm using a Pioneer Plasma 50" in combination with Azure 540r V3 and a tv-decoder.

Audio is connected by fiberglass and isn't an issue.

Video on the other hand is acting strange....

HDMI is coming from my TVbox -> to the Cambridge HDMI input 1 and -> Cambridge HDMI out is connected on my television.
This setup is not providing any video to the television.

The funny part is, when I connect the (earth) of the cambridge (for example the outside of the MON output of the cambridge) with the television "Composite input", then HDMI works.....
(I discovered this by connecting the cambridge MON output with the television to run the Cambridge setup)

- I grounded my television, no results.
- Swapped all cables, no results
- Connected the HDMI straight from the TV box with the television, WORKS.
- Also Connecting the cambridge mon cable with the TV composite input, WORKS.

Any experience ?!
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post #654 of 659 Old 09-28-2014, 07:46 AM
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Hi Robert,

I´d start troubleshooting the ac outlet for all equipment that are connected together including cables and wrong outlet polarity, shorts circuits, etc. If you have one of the equipment grounded but not all at the same ground level, try isolating them all to avoid possible ground loops. Also, check all your interconnect cables, including speaker wires, between all equipment looking for wrong connections (out to out or in to in) or any isolation problem. If they don´t have proper isolation or are in contact with metallic surfaces you may experience problems.

Hope it helps.
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post #655 of 659 Old 10-07-2014, 10:47 AM
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So, actually I got a 751R V2 for testing. Sound is really good as aspected. Nearly too punchy, with the normal cambridge mid-bass-pronounciation. But for me this is ok, I appreciate this, because I listen mostly moderate levels.

Actually two bigger problems:

1. Tuner has so decent level, that switching afterwards to another source (transporting the same loudness level) the whole room is exploding. There's a difference of approx 20 DB.
Perhaps there's a software update for this.....?
2. Handshaking problems with my oppo 105EU. Not finding contact via hdmi, he interrupts cd analog (!)audio.

Not buyable with this mistakes. Anyone has further infos concerning this issues ? Thanks.
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post #656 of 659 Old 10-15-2014, 02:12 PM
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Question about CA Azur 651R

Hello,

Can anyone tell what the best way to play spotify via this receiver? I play spotify through my PC typically so would an HDMI connection (from computer to receiver) be the best? What about just connecting via the MP3 audio connection on the receiver and plugging it into my microphone jack on my PC? Would I lose too much if I just bought a wireless bluetooth kit that plugged into the MP3 outlet on the receiver and streamed spotify that way? Thanks for any/all responses!

New to the audio world

J-
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post #657 of 659 Old 10-15-2014, 03:45 PM
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Quote:
Originally Posted by Jeff Puette View Post
Hello,

Can anyone tell what the best way to play spotify via this receiver? I play spotify through my PC typically so would an HDMI connection (from computer to receiver) be the best? What about just connecting via the MP3 audio connection on the receiver and plugging it into my microphone jack on my PC? Would I lose too much if I just bought a wireless bluetooth kit that plugged into the MP3 outlet on the receiver and streamed spotify that way? Thanks for any/all responses!

New to the audio world

J-

For optimum Spotfy sound from the PC use Spotify Premium account (Q9: Vorbis @ 320kbs or 256kbs; Q5 160kbs) and the Cambridge Audio USB interface which bypasses Windows sound processing. .
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post #658 of 659 Old 10-18-2014, 01:08 AM
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Hi, I read all the pages.
I own the 752BD
I'm interested in the 751 as an ideal pair but worried about the problems encountered (sub management, first second cutted and so on).
So, the new model V2 has solved some of the problems of the previous model or not?
Thanks you a lot in advance.
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post #659 of 659 Old 10-19-2014, 04:25 AM
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Hello Guys,

this will be my last post on this forum since I switched from my CA 651R to the Marantz SR7008 (on sale this moment due to new SR7009). Let me explain why:

when I was looking for a new AVR a year ago (after the wellknown breakdown of my Onkyo AVR - the HDMI board had a defect and could not be repaired within reasonable time). I read this forum from beginning to end and decided to go for a 651R. I wrote already before that all remarks -good and bad- are true: this AVR is GREAT for audio (2-channel stereo), but is not that great for surround-sound. Especially the Audyssey version is very mediocre. And also the onscreen display is a nuisance (it may be that this is only with my Sharp-TV, but I was fed up with the slow switching of the screen to a lower resolution everytime I wanted to change something in the blue menu - and also the peculiar layout started to work on my nerves)

Especially the speaker-configuration for surround sound became a problem: I was not able to get it right for most movie soundtracks. Most of the time the center-channel was too soft compared to the L/R speakers. Measuring and adjusting did not help as desired and most of the time I needed to adjust the overall soundlevel during watching a film down and up (especially when the effects were loud - our house is not very soundproof and I don't want to bother our neighbors too much). Also adjusting through the menu-settings did not help the way I hoped for (audyssey menu too deep and too complicated !! Although I spend a lot of time going through all the possible settings). Watching movies became a less desired family-event the last couple of months.

So, after a long consideration I decided to sell my 651R. When I was looking for a replacement for my Onkyo I was already considering the SR7008. Now it was time to go that way. Since the new SR7009 is on the way (biggest difference is Dolby Atmos - I don't think this is a necessary feature for me anyway). Yes, this AVR is a different ball park compared to the CA. Audio is perhaps less forwarding and depth may be a tat less and everything sounds more laidback. But with some tweaking with cables and adjusting some other things it's already becoming a good soundstage. But for surround-sound it's a bliss !! Measuring the soundstage via Audyssey is quick and easy and resulting in a fine sound for watching/listening movies. Only some minor manual adjusting was necessary. The last couple of weeks me and my family watched some movies and I did not have to adjust the sound everytime (just altered the centerspeaker in the beginning of some movies since this may vary per soundtrack). And also the possibility to see the onscreen display directly with the movie is something I missed from my old Onkyo.

Am I happy? Yes, to a certain extend. I liked the CA a lot for 2-channel listening. The sound is GREAT with a capital "G". I am already considering a next step: to switch to a seperate 2-channel solution aside my current surround setup. This may be then becoming a regular stereo amp from CA.

So, for now I'm not a "CA-fan" anymore, but this may change overtime. But then I'll check different forums for information about CA-equipment.

For everybody who still enjoys their 751R/651R AVRs: be happy and enjoy the audio quality !!
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Cambridge Audio Azur 651r Home Cinema Receiver , Cambridge Audio Ltd , Cambridge Audio , Cambridge Audio Azur 751r Black
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