The NAD T775/T785 AVRs w/ HDMI 1.3 Thread!

[vengazor]

Beermantm:
If you can listen to a 765HD at a store, that will be a good but not complete indication of the sound quality. It has the am100 and vm100 cards, the 775 has a 200 level card, i forget if its the audio or video and the 785 has both am200 and vm200. from everything i have learned speaking to NAD people and the salespeople at my local retailer, you should get both 200 level cards to really hear what these are capable of. If it is too much a budget stretch for a new 785 HD, i would buy a reconditioned 775 and then buy the upgraded cards, the previous 765 is missing a lot of things the 775/785/175 had.

[Alain Singapore]

I bought a T785 a week ago to replace an 8 year old Onkyo DS494. I am getting back to NAD after many years. I used to own a 3080 in the early 80's.

The sound is absolutely terrific. The dynamic is great, trebble have improved tremandously (sound is better without my super tweeter than before with the super tweeter added). The bass coming from the system has improved so much that I had to tune down my sub to avoid boominess. It is pushing my speaker into their limits (Tannoy Mercury MX3 front, MX1 surround and 662 center, Velodyne CHT10R sub). They have really become the weak link and beg for an upgrade. I am thinking about a set of Tannoy Revolution Signature DC6T + CD6 + CD6LCR + Velodyne SPL1000 Ultra.

I have my cable TV box connected through HDMI and I have not noticed any dropout. My cable is a cheap no-brand certified V1.3.

HD models and replacement cards are not yet available here. I am not on a hurry to get them. I do not have a BR player yet. I am waiting for the Oppo BD83 and the HD card to be fully sorted out. Due to the complexity of the HD implementation it may take several months to get the software right and tune a few areas of the hardware . On top of that, it seems that the current version is well discounted. I got mine for close to half the Europe MSRP.

[Phil Tomaskovic]

Some more info on the new cards from a source in Australia.

http://www.dtvforum.info/index.php?s...post&p=1364003

[gatt767]

anyone seen the upscaler in action the VM 200 board? Nad should be sending me a unit installed with the cards from abroad. I opted to get the VM 200 board.

[vengazor]

Unfortunately, Not in an NAD, my VM200 board has still not shipped from NAD, but I believe it is the same scaler in the Anthem D2v, I may be wrong, but I think they are both the Gennum VXP, so maybe you can read about that in the Anthem thread, it's supposed to be fantastic

[vengazor]

Anyone experience video dropouts using NAD 775 and oppo bdp-83? my denon 3800 had audio dropouts and now oppo has video, i am beginning to think its the NAD, have switched cables, but will now try direct hdmi to tv and digital audio to NAD

[Mashie Saldana]

Originally Posted by vengazor

Anyone experience video dropouts using NAD 775 and oppo bdp-83? my denon 3800 had audio dropouts and now oppo has video, i am beginning to think its the NAD, have switched cables, but will now try direct hdmi to tv and digital audio to NAD

I have never had a video dropout on my 775, I do have a Panasonic BDP-60 though. Also using cheap HDMI 1.3b certified cables from bluejeanscables.

[mcmlxviii]

Originally Posted by vengazor

Anyone experience video dropouts using NAD 775 and oppo bdp-83? my denon 3800 had audio dropouts and now oppo has video, i am beginning to think its the NAD, have switched cables, but will now try direct hdmi to tv and digital audio to NAD

I had video drop outs and the culprit appeared to be the Blue Jeans HDMI 1.3 spec cable I was using. I can't remember if it was the cable between the TV and T775 or the Panny BD35 Blu-Ray player and the T775. All I remember is that the cable was the heavier gauge and 12 ft long. Replaced it with a shorter and thinner gauge cable and no problems.

From comments on this forum it's possible that NADs are somewhat sensitive to the HDMI cable being used. I have other Blue Jean HDMI cables and have no complaints.

[vengazor]

Originally Posted by mcmlxviii

I had video drop outs and the culprit appeared to be the Blue Jeans HDMI 1.3 spec cable I was using. I can't remember if it was the cable between the TV and T775 or the Panny BD35 Blu-Ray player and the T775. All I remember is that the cable was the heavier gauge and 12 ft long. Replaced it with a shorter and thinner gauge cable and no problems.

From comments on this forum it's possible that NADs are somewhat sensitive to the HDMI cable being used. I have other Blue Jean HDMI cables and have no complaints.

I tried both an audioquest X cable and blue jeans, same problem, ugh, will try direct to tv when i get back from vacation

[cavchameleon]

I've had good luck with Accell cables, they are light so don't pull out as easily and are well constructed (not bad priced either):
http://www.amazon.com/Accell-B077C-0...7755436&sr=8-1
Ray

[NAD Paradigm]

I'm really getting annoyed at the buzzy fans in my T775. They intermittently (or at least one of them) vibrate like they are out of balance and make a loud buzzing noise.

I've taken the lower panel off and cleaned/inspected them twice so far. All 5 fans seem to be OK - they all turn freely, no obstructions, etc.

I just did this again yesterday, put it all back together and let it sit on the floor for a while. I turned it on and off periodically and no buzzing. So then I put it back in the rack and plugged all the cables back in and the first time I powered it up it started buzzing again!

Usually turning the power off and back on again a few times gets the fans to go back to normal.

Anyone else have this problem? I'm afraid to take it in, because they will probably not be able to duplicate the problem. It occurs randomly at power up, and with my luck it will never happen at a service center.

[Mashie Saldana]

Originally Posted by NAD Paradigm

Anyone else have this problem? I'm afraid to take it in, because they will probably not be able to duplicate the problem. It occurs randomly at power up, and with my luck it will never happen at a service center.

I didn't even know it was any fans in the 775 as I never noticed them.

[Ney]

My T765 has started doing the same! And I havnt been wanting to put it in for service for the same reasons, but it has been gradually gotten worse (e.g it happens more and more often on startup), so i think the bearing of the fan is dying or something like that So I think I will take it in for service soon.

edit: also I have been waiting for the upgrade panels so I hopefully could get them to put them in at the same time a well :P

[NAD Paradigm]

Originally Posted by Ney

My T765 has started doing the same! And I havnt been wanting to put it in for service for the same reasons, but it has been gradually gotten worse (e.g it happens more and more often on startup), so i think the bearing of the fan is dying or something like that So I think I will take it in for service soon.

edit: also I have been waiting for the upgrade panels so I hopefully could get them to put them in at the same time a well :P

I am starting to think that the best solution might be to leave it on all the time! At least someone else is seeing this problem. I would prefer to have NAD just send a replacement panel with the fans already mounted instead of sending it in and getting a "no problem found" response.

Sooner or later I will be getting the DSP board hardware/firmware update under warranty, or the new cards. So maybe they can look at the fans at that time.

Edited to add: I spoke too soon, now the buzzing is starting to occur randomly when the unit is on. Happened a couple times last night while listening to CD's.

[Alain Singapore]

I have a little issue with HDMI handshake beside the fact that the connectors get easilly get disconnected when I put the T785 back in its rack.

The only way to get my HTPC and my cable box to be recognised is to first switch on the receiver, then select the source I want to play, then switch on the source and at last switch on my projector. If I change the sequence I do not get the source to handshake with the receiver (blinking HDMI indicator). The projector works with all the analog input (composite as well as component) transcoded to HDMI. It displays the T785 setup menu in all mode, even with non handshaked HDMI sources, in 576P or 720p, it depends, no apperent logic behind this.

My HTPC has also a lot of trouble to detect the T785. The video card is a ASUS GeForce GT8600. I have to go into the NVidia configuration menue to force detect the receiver and get a dual view setup with the proper resolution.

Anybody has got the same problems? Can a firmware upgrade solve the problem. BTW, how to tell what firmaware has been installed?

Thank you very much in advance for your feedback.

[Ney]

Originally Posted by NAD Paradigm

I would prefer to have NAD just send a replacement panel with the fans already mounted instead of sending it in and getting a "no problem found" response.

Now that would be ideal!

Originally Posted by NAD Paradigm

Sooner or later I will be getting the DSP board hardware/firmware update under warranty, or the new cards. So maybe they can look at the fans at that time.

Yeah hopefully my dealer will get the upgrade cards in august and I can justify getting a BD player and upgrade cards

[gringcorp]

Originally Posted by cavchameleon

Oh, that doesn't sound good. Double check ALL your connections to make sure they are clean and check again. If so, usually there are sacrificial capacitors on the output stage that are pretty easy to replace (by someone with experience of course). Good luck an let us know how it came out.

Well, six weeks later, and with not that much in the way of explanation, the service center returned me a pretty much functioning T775. I still have no idea what killed it, though the service center guy mumbled something about a transistor needing to be replaced. And now it's popping when I change source. Never had that before, pretty smug about it too. Never even tried to use a Blu-Ray with it. But it's popping now. Great.

[hughej]

So...have my hands on a T785HD. Not much time to play around with it yet but at least so far I can tell you no snap, crackle, pops when loading/watching blu-ray discs and no audio dropouts while watching my cable box. Both the pops and the audio dropouts were very easy to replicate on my 785, but still I'm holding any judgment until I've had more time with it. I'm just excited to finally have the NAD sound with an apparently problem free unit...so far.
I'll post some more results after spending some time with it over the weekend, hopefully I'll have time to run through complete Audyssey set up too.
I know someone had some big s-video problems. I don't have the need for s-video at all but I believe I can run my Oppo with s-video out, at least long enuf to confirm good or bad picture.

[cavchameleon]

Originally Posted by gringcorp

Well, six weeks later, and with not that much in the way of explanation, the service center returned me a pretty much functioning T775. I still have no idea what killed it, though the service center guy mumbled something about a transistor needing to be replaced. And now it's popping when I change source. Never had that before, pretty smug about it too. Never even tried to use a Blu-Ray with it. But it's popping now. Great.

Wow, that's too bad!!! Sorry about the popping issue that you did not have before. Transistors can fail, but not a usual thing unless defective (or if shorted in some way - something like a cable short, especially with speaker cables, can blow the output transistors).

Ray

[cavchameleon]

Originally Posted by hughej

So...have my hands on a T785HD. Not much time to play around with it yet but at least so far I can tell you no snap, crackle, pops when loading/watching blu-ray discs and no audio dropouts while watching my cable box. Both the pops and the audio dropouts were very easy to replicate on my 785, but still I'm holding any judgment until I've had more time with it. I'm just excited to finally have the NAD sound with an apparently problem free unit...so far.
I'll post some more results after spending some time with it over the weekend, hopefully I'll have time to run through complete Audyssey set up too.
I know someone had some big s-video problems. I don't have the need for s-video at all but I believe I can run my Oppo with s-video out, at least long enuf to confirm good or bad picture.

Please keep us posted. I'm interested in the board upgrade, but want to see the results. As far as S-video, I think it was someone on the 175 thread. My 785 seemed to work well with S-video, but I did not spend a lot of time with it - only have a couple pieces of equipment that need it and almost never use those sources (except for the IPOD, which unfortunately the NAD IPOD doc does not have component or HDMI out). Let us know how the unit sounds AFTER running Audyssey and with Audyssey engaged. From what I remember, those with pops did not have them when Audyssey was not engaged (maybe partly an issue with total processing power being used in combination with other issues).

Thanks,
Ray

[hughej]

Originally Posted by cavchameleon

As far as S-video, I think it was someone on the 175 thread. My 785 seemed to work well with S-video, ... From what I remember, those with pops did not have them when Audyssey was not engaged (maybe partly an issue with total processing power being used in combination with other issues).

I won't worry about testing the S-video then since it's prob not applicable, and would just be an extra hassle anyway.
I know Audyssey was an issue early on with re to contributing to the popping because I disengaged and never turned it back on until recently after Bob said they fixed that some time ago. I had the initial severe popping with Audyssey which is why I never trusted it, but the smaller (non speaker blowing) pops and snaps I've had regardless of Audyssey being on or not. In my room the Audyssey makes a noticably positive difference so I'd prefer to keep it on, at least when watching surround movies, just stereo music listening I prefer to have it off. Anyway, I'll post some impressions over the weekend. <it's also nice to have the OSD only fill part of the screen and be @ 1080p so there is no delay in switching video resolution>

[Sonnie Parker]

Hey Ray... fancy seeing you in this thread.

I am curious... had the T785, HDMI issues, but did upgrade the HDMI board and upgrade the software before I sold it. Now I am interested in giving one another try, but do not want headaches. I have the OPPO BD-83 and a Dish 612 satellite receiver running to a Panny 3000 projector. Can anyone confirm the latest T785 units are coming in without any issues?

Thanking you kindly, as I really do not want to have to read through this massive thread.

[Phil Tomaskovic]

Has any one seen the NAD display 192k for a source? I'm playing the new Neil Young Archive blu ray and it says the audio is encoded at 192k. Playing from am Oppo 83 connected via hdmi to the 785.

[jdc115]

Originally Posted by Phil Tomaskovic

Has any one seen the NAD display 192k for a source? I'm playing the new Neil Young Archive blu ray and it says the audio is encoded at 192k. Playing from am Oppo 83 connected via hdmi to the 785.

Though the NAD has a 192k DAC, the unit itself can not process above 96k from what i understand. This has been discussed a bit on the T175 thread (I have a T175). It has more to do with the DSP's processing power I believe.

I also have the Neil Young Archive Blu-ray and though my BD player shows it encoded at 192k, it is down converted and sent to the NAD at 96k which is what i get on my front display.

[cavchameleon]

Originally Posted by Sonnie Parker

Hey Ray... fancy seeing you in this thread.

I am curious... had the T785, HDMI issues, but did upgrade the HDMI board and upgrade the software before I sold it. Now I am interested in giving one another try, but do not want headaches. I have the OPPO BD-83 and a Dish 612 satellite receiver running to a Panny 3000 projector. Can anyone confirm the latest T785 units are coming in without any issues?

Thanking you kindly, as I really do not want to have to read through this massive thread.

Sonnie,

I'm not sure how the 'newer' T785's are doing. From this thread, I'd assume that there are still issues with pops. Mine only has small 'tics' once in awhile (changing source only, not during program material). I have not done the HDMI board upgrade (which is simply a removal of specific outboard capacitors) but do have the V1.16 FW. Just an FYI, I have friends with Denon, Onkyo, HK, and Sony and all have some issues with some tics and pops every now and then (all the ones that are HDMI based) so I think it's still an issue with all manufactures. HDMI is really just a 'headache doomed mediocre interface' especially with HDCP. It's not going away, so they need to work on it.

Ray

[cavchameleon]

Originally Posted by jdc115

Though the NAD has a 192k DAC, the unit itself can not process above 96k from what i understand. This has been discussed a bit on the T175 thread (I have a T175). It has more to do with the DSP's processing power I believe.

I also have the Neil Young Archive Blu-ray and though my BD player shows it encoded at 192k, it is down converted and sent to the NAD at 96k which is what i get on my front display.

From what I've read, this is the case. But, can one really hear the difference? I'm not sure (maybe in the perfect room and setup).

Ray

[Phil Tomaskovic]

Originally Posted by jdc115

Though the NAD has a 192k DAC, the unit itself can not process above 96k from what i understand. This has been discussed a bit on the T175 thread (I have a T175). It has more to do with the DSP's processing power I believe.

I also have the Neil Young Archive Blu-ray and though my BD player shows it encoded at 192k, it is down converted and sent to the NAD at 96k which is what i get on my front display.

Thanks for the confirmation. I have the Oppo BR player. When I do display (only played disc 8 so far) it says there are 2 audio tracks, but I can only access one of them (the first). Do you have the same issue? Not sure my player says whether it's playing 192k or 96k; it does say the bit rate.

[hughej]

Well, I have gone through the full Audyssey setup and still no snaps or pops and no audio dropouts. I really don't have any complaints about the unit. The only pop I've had so far was very minor (audible but very soft) and that was when I had started a blu-ray and decided to change the display setting on the 785 from 1080p/60 to 1080p/24 - "Auto" apparently only selects the highest resolution whereas the frame rate stays at whatever is selected. When the rate was changed from 60 to 24 midstream, there was a very slight pop/bump noise, but hardly anything for which to fault the unit.
I thought the dual DSP's was going to allow me to run 2 digital sources at the same time but that doesn't seem to be the case. Seems there should be plenty of processing power to accomplish that but then I have no idea, I guess it would come down to the # of d/a converters and how they're utilized too. Also, I noticed my PS3 now has 192khz as one of the automatically detected audio settings whereas the old unit only showed 96 as the max (if I remember correctly, someone currently with PS3 and xx5 could confirm). I did borrow my dad's BD60 that will send bitstream and the 785 did fine with both TrueHD and MA too. I have no source or material where I could test if the 785 actually received a 192 signal so that will have to wait for someone else, but at least the PS3 apparently is detecting that the 785 can receive it.
Anyway, that's it for now. Rented Watchmen on blu-ray, it's 3hrs long, and still have to get dinner ready so better get on it...
glad to be a bearer of some good news after reading the initial 175 was having some issues.

[jdc115]

Originally Posted by Phil Tomaskovic

Thanks for the confirmation. I have the Oppo BR player. When I do display (only played disc 8 so far) it says there are 2 audio tracks, but I can only access one of them (the first). Do you have the same issue? Not sure my player says whether it's playing 192k or 96k; it does say the bit rate.

Interesting, I just did a little test as i have both the Oppo BD player and a PS3. The Oppo does list 1/2 audio tracks for me as well but I am not able to switch. The Oppo also does not display the audio sample rates (at least not that I have found yet).

The PS3 does not display how many tracks there are suppose to be but does tell me that I can not switch any audio tracks. I do believe there is only 1 audio track on most of the disks which is 2 channel 192Khz PCM.

the PS3 does confirm Linear PCM 2 Ch 192Khz 9.2 Mbps for all my tracks on the Massy Hall disk. My NAD T175 displays D 2/0.0 96k. This is the same if I disable Audyssey or not.

As far as the question if we could hear the difference or not, I doubt I would in my current setup and have not been too bothered by it. I think the major complaint that came up on the T175 thread is that the product is advertised as having 192K DACS which most would assume then it would be able to receive and process 192K sources. But that turned out not to be the case as they had to the max rate to 96K due to the limitation in DSP power. From what I remember, it would have the ability to process 192K under certain conditions and not others but in order to not cause confusion it was decided to just limit all sources to 96K

[NAD Paradigm]

I've read the manuals on some Sony AVR's and found that they can handle 192 KHz LPCM, but almost all other DSP functions like EQ are disabled for any sources over 96 KHz.

It would have been the same case for NAD. The limit of 96 KHz would have applied to Audyssey processing and bass management. The NAD people didn't like the idea of crippling features to allow 192 KHz inputs because it would cause confusion. Then again, the purist crowd doesn't necessarily use Audyssey, so perhaps they should have done like Sony and the others...