The "Official" NAD T 747 Owner's Thread - Page 46

Originally Posted by PSBMAN


What video processor is in the Panny?

Originally Posted by drbonbi


Check out pg. 26 of the User Manual

Dana

Originally Posted by PSBMAN


Thanks a bunch

Cheers

Originally Posted by jskibo

Just picked up one of these open box from Crutchfield. Its going in the home theater replacing an Onkyo RC160 since I need pre-outs for the Sherwood A965 I picked up.

The Onkyo will be moved to Zone 2 and 3 duty (Bar and Patio).

Hope the NAD sounds good with the Sherwood.

Originally Posted by jskibo

Well the guy selling the Sherwood claims to have lost it now so I won't be getting it.

I found a replacement though, picked up a NAD T955 to go with the T747

Since I'm running a 7.1 theater with Magnepans all around, would I be better off using the 955 for the front 5 and the 747 for the rear surrounds, or picking up a 2400 to power the L&R and using the 955 for Center and surrounds?

Originally Posted by Marty913

I would try the 955 for the 3 front & the 2 side surrounds (as in a traditional 5.1) and use the 747 for the 2 back channels. What Maggie's are you using for the surround (side) and back channels?

Originally Posted by jskibo

MMGW's

Originally Posted by jskibo

Well the guy selling the Sherwood claims to have lost it now so I won't be getting it.

I found a replacement though, picked up a NAD T955 to go with the T747

Since I'm running a 7.1 theater with Magnepans all around, would I be better off using the 955 for the front 5 and the 747 for the rear surrounds, or picking up a 2400 to power the L&R and using the 955 for Center and surrounds?

Originally Posted by Vracer111

2400 is similar to the PE 2200 I have - a little less powerful but with better S/N ratio. I would definitely use the 2400 for the Mains and the T955 for the center and surrounds. Using the stereo amp will clean up Signal/Noise compared to using the amp section of the T747 while improving the clarity and presence noticeably. The T955 does a great job for the center and surrounds. For music, the 400 dynamic watts/channel is nice as well...more than double of what the T747 can manage. I will never go back to using the T747 amp section. Plan to replace the PE 2200 with the C 275BEE to get even better sound quality.

Originally Posted by Vracer111


2400 is similar to the PE 2200 I have - a little less powerful but with better S/N ratio. I would definitely use the 2400 for the Mains and the T955 for the center and surrounds. Using the stereo amp will clean up Signal/Noise compared to using the amp section of the T747 while improving the clarity and presence noticeably. The T955 does a great job for the center and surrounds. For music, the 400 dynamic watts/channel is nice as well...more than double of what the T747 can manage. I will never go back to using the T747 amp section. Plan to replace the PE 2200 with the C 275BEE to get even better sound quality.

Originally Posted by Ladyfingers

Does anybody else suffer from the extreme fickleness of the NAD T747's digital lock-on?

I thought my Squeezebox Touch was the culprit, but the NAD loses lock (the 44.1k on the front panel disappears) when it encounters digital silence and so it trims off a few milliseconds of whatever follows by regaining sync. Ruins the openings of lots of songs.

I've resorted to stereo RCA cables, and it works, but seriously, to lose lock on silence? this makes it impossible to use S/PDIF for music. I've tried optical and coaxial and neither works properly.

At this point I've kind of had it with the T747. I'm sorry, this thing sounds great but the processor itself is an unmitigated disaster. NAD refuses to send me the firmware update to do myself.

I'll buy your power amps, NAD, but I'll never buy your processors again.

Originally Posted by Ladyfingers

Does anybody else suffer from the extreme fickleness of the NAD T747's digital lock-on?

I thought my Squeezebox Touch was the culprit, but the NAD loses lock (the 44.1k on the front panel disappears) when it encounters digital silence and so it trims off a few milliseconds of whatever follows by regaining sync. Ruins the openings of lots of songs.

I've resorted to stereo RCA cables, and it works, but seriously, to lose lock on silence? this makes it impossible to use S/PDIF for music. I've tried optical and coaxial and neither works properly.

At this point I've kind of had it with the T747. I'm sorry, this thing sounds great but the processor itself is an unmitigated disaster. NAD refuses to send me the firmware update to do myself.

I'll buy your power amps, NAD, but I'll never buy your processors again.

Originally Posted by Marty913

I'm not seeing it unless I'm going blind / deaf. Admittedly I'm using HDMI from my media player (Netgear NEO) to the T747 so that's one difference.

I picked a few WAV tracks & didn't hear what you're describing so I used WavePad to insert several seconds of digital silence into the beginning of each track. I then saved them as both WAV & Mp3 files and played them both sequentially & randomly. The digital readout on the 747 never blinked at any time so I'm assuming no loss of sync. Regardless, I didn't hear any cut off on song openings.

Maybe my test conditions are flawed in some way, or there's something else at work here.

Originally Posted by Ladyfingers

You're a star for doing all this. Can you let me know what firmware you're running? Mine is on M 1.20.

Originally Posted by Marty913

I'm not seeing it unless I'm going blind / deaf. Admittedly I'm using HDMI from my media player (Netgear NEO) to the T747 so that's one difference.

I picked a few WAV tracks & didn't hear what you're describing so I used WavePad to insert several seconds of digital silence into the beginning of each track. I then saved them as both WAV & Mp3 files and played them both sequentially & randomly. The digital readout on the 747 never blinked at any time so I'm assuming no loss of sync. Regardless, I didn't hear any cut off on song openings.

Maybe my test conditions are flawed in some way, or there's something else at work here.

Originally Posted by paul.raulerson

Ah hah! I can post here again! Yeah!!

I don't see what you are seeing either, unless the player is changing the bit depth or sample rate. Then I see that. Could that be happening to you?

-Paul

Originally Posted by bommai

Were you banned or something Paul!!

I did find one bug similar to what Ladyfingers is having. The beginning of any song is cutoff on the T775 if I use a digital connection (HDMI or SPDIF). I sent my findings to NAD and they are in the process of getting back to me. My two older NAD receivers T744 and T763 don't have this problem. So, it looks like this problem was introduced later on (like the 747 and 775). Other 775 owners have this problem too. I don't think I have a problem with it dropping signal in the middle of a song but only the beginning.

I still have the T763. I cannot return the 775 since Saturday Audio (where I bought it from) has only a 7 day return policy. I could exchange it for another product - but I don't know what to get. I might just keep it since it does sound great. May be I should have stuck with the T763 and upgraded my Klipsch RF5, RC7 speakers instead.

I wanted to add that the T775 has no video processing - only a pure pass through - and everything works great there with no frame rate conversion etc that the T747 has been plagued with. I got the T775HD for $1299 from Saturday Audio. They are sold out and the T775HD2 is $2999!!! Crazy huh!

Originally Posted by Marty913

Paul, your last post was on 7/1 so it looks like exactly 30 days. Maybe you were a "bad boy" on one of the other forums. Anyway, glad you're back.

Originally Posted by bommai

Were you banned or something Paul!!

I bought a NAD T775HD from Saturday Audio a few weeks ago. I am still torn about it because just two months ago I bought a used T763 which sounds great too.

The 775 definitely sounds better than the 763 and has 4 HDMI ports, 7.1 channels instead of 6.1 (like the 763) and does Audyssey Multi XT with NAD response curves, Dynamic EQ and Dynamic Volume.

I am still tweaking audyssey settings - still not satisfactory.

I did find one bug similar to what Ladyfingers is having. The beginning of any song is cutoff on the T775 if I use a digital connection (HDMI or SPDIF). I sent my findings to NAD and they are in the process of getting back to me. My two older NAD receivers T744 and T763 don't have this problem. So, it looks like this problem was introduced later on (like the 747 and 775). Other 775 owners have this problem too. I don't think I have a problem with it dropping signal in the middle of a song but only the beginning.

I still have the T763. I cannot return the 775 since Saturday Audio (where I bought it from) has only a 7 day return policy. I could exchange it for another product - but I don't know what to get. I might just keep it since it does sound great. May be I should have stuck with the T763 and upgraded my Klipsch RF5, RC7 speakers instead.

I wanted to add that the T775 has no video processing - only a pure pass through - and everything works great there with no frame rate conversion etc that the T747 has been plagued with. I got the T775HD for $1299 from Saturday Audio. They are sold out and the T775HD2 is $2999!!! Crazy huh!

Originally Posted by paul.raulerson

Better Sound from 7.1 inputs?

I swiched the two channel output on my DAC from Audio-3 to the 7.1 inputs, and the difference surprised me - it sounded a lot better.

That's with analog bypass selected on both inputs.

Anyone else tried that, and if so, did you hear a difference? Better or worse?

-Paul

Originally Posted by Ladyfingers

Wel,, ou're either relying on the source DAC or the NAD's DAC. I can say that my NAD does a better job decoding than any of my components, part of the reason I'm irked at it being so finicky about the S/PDIF from my Squeezebox.

I'm not quite sure how a fully analogue receiver implements speaker/lipsync delays in processor bypass mode, though. Analogue delay is a nice effect for guitar, but its definitely not Hi-Fi.