Marantz AVR REC turn on issue

[ematthews]

Drool...

 

[lovinthehd]

That is indeed an odd sound. Something physically loose inside? Your body may have a strange aura or something for electronics?

 

[snakeeyes]

Well I'm still a Denon/Marantz dealer.

But several factors have led me to the arms of Yamaha.

I was surprised when I tried the Yamaha CX-A5100.

I used to think that I could never get the same sound quality as Audyssey Dynamic EQ. I have tried numerous times with other Denon units, but I could never duplicate the sound of Dynamic EQ without using EQ.

Thus, I have said so many times on the forum that I could not live without Dynamic EQ!

But then came the CX-A5100. And I was so shocked that I could get the sound of Dynamic EQ as before, except now I'm not using any kind of Room EQ or any EQ at all!

Absolutely no EQ or DSP, and yet I can achieve the same dynamic sound as Dynamic EQ.

The stars lined up. Next thing you know, I was meeting with a Yamaha Rep and became a dealer for them.

Bottom line - my mind has been opened up once again. I used to think like @TLS Guy when it came to EQ - absolutely no EQ/DSP is best for sound quality. Then I found that Dynamic EQ was better. Now I can get the same awesome dynamic sound I love without any kind of EQ/DSP.

So I guess I have come "full circle" as Kurt would say. Well, maybe almost full circle.

So you became a dealer to get a discount?

 

[AcuDefTechGuy]

So you became a dealer to get a discount?

Not really since I already bought the CX-A5100.

It’s the same way with RBH, Denon, ATI. I only became a dealer after already owning their big high-end systems (RBH SX-T2/R x 5 towers, Denon AVP-A1HD and AVR-5308, ATI AT3002, AT3005, AT2005, AT6012).

I became a dealer for them because I truly believe in their products.

RBH is my favorite (SX-T2, SVT Towers) - absolutely love their philosophy of modular dispersion array of towers of power.

ATI is my 2nd favorite, although I wish their products are more affordable (amps are $3-6K, pre-pro is supposed to be about $9-10K).

Denon used to be my 3nd favorite. But with my recent reliability experiences (Direct and Indirect),I think Yamaha has leapfrogged them as my 3rd favorite.

 

[TLS Guy]

My guess is that it is coming from the power transformer. I suspect there is a loose lamination, the magnetic field is shifting on power up.

 

[ematthews]

My guess is that it is coming from the power transformer. I suspect there is a loose lamination, the magnetic field is shifting on power up.

Should I be concerned if this is the issue? Should it be repaired or replaced? I currently don’t have any sound or performance issues while in use.

 

[highfigh]

I have never heard any kind of "popping" noise directly from any AVR, Pre-pro, or Amp in my life.

That is definitely disconcerting.

I have heard that kind of thump from many pieces of equipment over the decades and never saw problems because of it. It's from the inrush of current to the transformer. I had a guitar amp and still have a bass amp that moved the speaker outward when they turn on and never had problems with speakers. I would be more concerned with that happening than the thump, but you might call Marantz, to get their opinion.

 

[PENG]

Should I be concerned if this is the issue? Should it be repaired or replaced? I currently don’t have any sound or performance issues while in use.

Just a wild guess, I guess it is a capacitor that is on the way out or already out. Your described the sound as a thump, that to me, could be the sound of a decent sized spark. If it is, it will get worse quickly, quicker if you turn it on/off more often especially if turned on from totally off instead of from standby.

 

[highfigh]

Also another reason I am thinking Yamaha products. They seem to be a bit more reliable than the rest. Even on their two channel products.

Talk to a place that services a lot of brands- they see Yamaha often, too. They did seem to walk through the HDMI board failure period better than most (especially Onkyo), but the person I spoke with in Chicago said Yamaha had plenty of failures, too.

I used to think Yamaha sounded a bit 'thin' but I bought a WXC-50 MusicCast piece over a year ago and I like the sound, a lot. The only comment I would make about the sound is, if I use the bass extender, I can hear when the sub-harmonic starts because there's a slight delay. Other than that, it has been great and at this point, I'm also using it as my preamp (other than for phono, which is going through my Sony integrated amp's phono preamp).

 

[AcuDefTechGuy]

Talk to a place that services a lot of brands- they see Yamaha often, too. They did seem to walk through the HDMI board failure period better than most (especially Onkyo),but the person I spoke with in Chicago said Yamaha had plenty of failures, too.

I used to think Yamaha sounded a bit 'thin' but I bought a WXC-50 MusicCast piece over a year ago and I like the sound, a lot. The only comment I would make about the sound is, if I use the bass extender, I can hear when the sub-harmonic starts because there's a slight delay. Other than that, it has been great and at this point, I'm also using it as my preamp (other than for phono, which is going through my Sony integrated amp's phono preamp).

"Often too" as in equally often?

@M Code was saying a totally different thing in terms of big repair data - that Yamaha's repairs were significantly less. I don't recall if he quoted any numbers and how many repair centers, but I got the impression it was pretty broad data.

 

[TLS Guy]

Should I be concerned if this is the issue? Should it be repaired or replaced? I currently don’t have any sound or performance issues while in use.

If my guess is correct, it will not affect performance.

I doubt it is a capacitor. If a cap was flashing inside like that, I think you would notice other problems.

What I would do is open the case, and be careful. If it is the transformer, which I feel is most likely, then you should be able to feel the thump in the transformer.

If it is a cap then you would hear it right over one of the power supply caps. If it is a cap, then the unit should be unplugged immediately and repaired or replaced.

 

[PENG]

If my guess is correct, it will not affect performance.

I doubt it is a capacitor. If a cap was flashing inside like that, I think you would notice other problems.

What I would do is open the case, and be careful. If it is the transformer, which I feel is most likely, then you should be able to feel the thump in the transformer.

If it is a cap then you would hear it right over one of the power supply caps. If it is a cap, then the unit should be unplugged immediately and repaired or replaced.

And I doubt it's the transformer, laminations don't become loose suddenly, and if they are loose they will make noise continuously and laminations don't cause a thump like noise.

 

[TLS Guy]

And I doubt it's the transformer, laminations don't become loose suddenly, and if they are loose they will make noise continuously and laminations don't cause a thump like noise.

I agree that is the way transformer usually misbehave, but I have had them do that thump on turn on.

This is all speculation. He needs to take the top off and find out where the noise is coming from. Then we have facts.

 

[PENG]

I agree that is the way transformer usually misbehave, but I have had them do that thump on turn on.

This is all speculation. He needs to take the top off and find out where the noise is coming from. Then we have facts.

Oh yes, if it was me, and surely you too, the top would have been lifted already.

 

[M Code]

Interesting...
In my experience when a power transformer has issues with its laminations typically it emits a buzzing sound. Though once in awhile a power transformer mounting screws breaks loose in transit..
Regarding an audible thump...
If heard through a subwoofer or loudspeaker..
This is common for a power amplifier as it powers up, yet most amplifiers have some type of muting circuit until the power supply is stable...

Just my $0.02..

 

[TLS Guy]

Oh yes, if it was me, and surely you too, the top would have been lifted already.

Damn right!

 

[Irvrobinson]

Regarding an audible thump...
If heard through a subwoofer or loudspeaker..
This is common for a power amplifier as it powers up, yet most amplifiers have some type of muting circuit until the power supply is stable...

Just my $0.02..

Ditto, but he very specifically said the speakers were disconnected. I'm staying out of this, because diagnosis over the internet is, well, you know. Anyway, it could be the ghost of his Aunt Martha, who's still pissed at him for getting into her cookie jar without permission decades ago when he was at her house for Easter.

 

[M Code]

Ditto, but he very specifically said the speakers were disconnected. I'm staying out of this, because diagnosis over the internet is, well, you know. Anyway, it could be the ghost of his Aunt Martha, who's still pissed at him for getting into her cookie jar without permission decades ago when he was at her house for Easter.

Hmm..
U are rite sounds like the ghost ofAunt Martha may have returned..

Just my $0.02..

 

[PENG]

As I said, I was only taking a wild guess. It's fun to guess. The OP said "I currently don’t have any sound or performance issues while in use." So if he prefers, he could just wait for it to get worse, enough to reveal the root cause. The D&M receivers are quite well protected for over current and thermal overload by fuses, electronic circuitry and according to M Code, possibly "thermal fuse" (still hate that term) too, for the transformer, but he should not leave it on when unattended.

 

[Irvrobinson]

As I said, I was only taking a wild guess. It's fun to guess. The OP said "I currently don’t have any sound or performance issues while in use." So if he prefers, he could just wait for it to get worse, enough to reveal the root cause. The D&M receivers are quite well protected for over current and thermal overload by fuses, electronic circuitry and according to M Code, possibly "thermal fuse" (still hate that term) too, for the transformer, but he should not leave it on when unattended.

I wasn't casting aspersions. Really.