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New member Username: Daniel_1Post Number: 5 Registered: Apr-06 | I own NAD T773 receiver and before a year or so, I was thinking that NAD fixed me the humm and hasss issues, though, today I have noticed that these noises returned back... I probably will upgrade my receiver to another one from other brand. Daniel |
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Silver Member Username: JethroLansing, Mi Post Number: 139 Registered: Jan-06 | unfortunate... sorry to hear about your loss and the moving away from a terrific "sounding" piece of equipment. good luck, hopefully the sound that you get will actually be an upgrade! |
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Silver Member Username: HawkHighlands Ranch, CO USA Post Number: 997 Registered: Dec-03 | Daniel: If you are going to upgrade, go with seperates. Don't waste your time with another receiver. |
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Bronze Member Username: MitchbdPost Number: 92 Registered: Feb-04 | Daniel - run away from the NAD!! See the issues in the other post: https://www.ecoustics.com/electronics/forum/home-audio/283230.html I agree with Hawk. Skip to separates. You'll be happier in the end! |
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Bronze Member Username: UsernamexLondonEngland Post Number: 25 Registered: Oct-05 | Hey Daniel, is the hum is related to the surrounds when processing DD? The NAD T7X3 series had an internal ground loop problem (yup inside the receiver itself). They changed the design to fix this around the time they introduced firmware ver2.0 and DPLIIx support. This fix was retrofitted to older models if they came in for servicing. From my experience, I suspect the upgrade/repair wasn't exactly the same fix as happened to the new production. I bought an old demo T753 and had hum problems - constant hum independant of volume level, left rear channel when decoding digital content; even hummed with 2 channel/stereo DD. Lenbrook/NAD UK couldn't reproduce the fault, and the unit had already been "upgraded" with the internal ground loop fix, so they swapped the DSP and sent it back (didn't fix it). I tried three different DD sources with both toslink and coxail cables with no difference. WEIRD BIT... I then found physically using the volume control, or even firmly pressing the amp facia could eliminate or change the hum pitch (actually pressing one of the button on the amp would do this too; the hum would change pitch until the lcd would default back to the standard menu!). Although I didn't get to the bottom of my problem, I suspect NAD's the internal ground loop fix wasn't performed correctly and there may have been a dodgy solder somwewhere, I can't be sure as NAD then gave me a brand new one, no problems since! |
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New member Username: Daniel_1Post Number: 7 Registered: Apr-06 | Thx for the note. However, I had and having bad experience with my NAD system. I like the NAD sound and bought my unit almost at the same day NAD published the T773. Then I called them saying I have these issues with my receiver. I shipped them the unit and they upgraded it to 2.0 software with PLIIx. The issues went away, but before 1-2 months they returned back. As I wrote, I love the NAD sound, but this will be my last NAD receiver. I probably will go with ARCAM next time. I audited the ARCAM line and found no issue with great sound (to my opinion). Thx again, Daniel |