Question about DACs is it a big difference between a 24 and a 32bits?

Kinetic

Guys, in terms of sound quality vs money.. (important the money issue)
is it a big difference between a 24 bits DAC and a 32 bits DAC?

here is why?
Im between the Marantz UD5007 ($600 dls) and the UD7007 ($1,200 dls)

Marantz technical support claims that the only difference between those two are the DAC

the UD5007 has a Burr Brown PCM1781
http://www.ti.com/product/PCM1781?keyMatch=PCM1781&tisearch=Search-EN-Everything

The UD7007 has a Burr Brown PCM1795
http://www.ti.com/product/PCM1795?keyMatch=PCM1795&tisearch=Search-EN-Everything

Extras:
I have a Marantz PM8005 integrated stereo amp
Its mainly for audio, but i choose the blu ray player since i dont want to have 2 different devices for Discs reproduction.
No. I dont want the OPPO

Irrenhaus

Here are the two side by side.

http://www.crutchfield.com/S-lL64CkuoODc/compare_642UD5007_642UD7007/Marantz-UD5007-vs-Marantz-UD7007.html

Cheers

Kinetic

mmm that doesnt tell me anything..

Polkie2009

I'm surprised the UD5007 won't play DTS-HD HR audio??? I think even my old Sony PS3 would play my Doctor Who Blu rays encoded with DTS-HD HR audio.

Emlyn

The more expensive model would have greater dynamic range and a better signal to noise ratio. Doubtful that by itself the difference would be audible between the two DACs. There are more important differences including a big one which is two HDMI outputs. It also has XLR outputs. Certain elements of the internal build quality are also evident in being improved in the more expensive version.

If the extra features are not important I would go with the cheaper option.

Kinetic

whats the use on the XLR outputs? what are they for?
my Marantz PM8005 doesnt have XLR outputs..

EndersShadow

Kinetic wrote: »

whats the use on the XLR outputs? what are they for?
my Marantz PM8005 doesnt have XLR outputs..

XLR cables if used through the entire setup results in a lower noise floor and possibly a 3db increase...

Kinetic

and how can I conect them to the Marantz PM8005 integrated amp, if the amp doesnt have those conections?
if its not possible, what would be the best way to conect them.. I was guessing a nice pair of RCAs

tonyb

You would guess right.

Emlyn

The RCA connection method is the only one available between the Marantz Blu Ray players and the PM8005. Both of the Blu Ray players have a single set of RCA outputs. Good thing to check that these days as some less expensive Blu Ray players have no analog outputs.

Kinetic

ok and now whats to do with the Marantz UD5007 or UD7007
the XLR is not an issue
the 2 HDMI outputs not an issue

just the difference between the 24bit DAC and the 32bit DAC
is it worth the money in terms of Sound Quality?

[Deleted User]

32 bit justifies the expense for some.
Theoretically speaking, it lowers the noise floor.
I'm guessing that if I listened to something at 32 bit then 24
I wouldn't know which is which.

[Deleted User]

lunch is almost over and I haven't found any 32/384 files to be had.
However, I may be selling the product short as they could be oversampling
and doing things with that.

[Deleted User]

"Marantz technical support claims that the only difference between those two are the DAC" Thats a big only.
I've been thinking, if this is true and I bet it isn't, then it would depend on your source
as I was trying to say above. Some higher rate convertors do a poorer job at converting redbooks, ect. I'm told. They could be doing a better job at filtering the things you don't hear that get in the way of the things you can hear. Tough call w/out trying both w/ your source(s) What is wrong w/ the PM8005's DAC?

Kinetic

there is nothing wrong with my PM8005 DAC if I have one.. i recently bought it, i dont know much about it, and the Marantz website doesnt help..

Im new on Home Audio..

rpf65

The difference between the DACs could be substantial or meaningless. It depends are what your using for source and material, and another factor is circuit design.

Easiest example is play an MP3 on equipment with either DAC, and probably nobody could tell the difference. Higher resolution material will be more noticeable to more people.

One more consideration is how good your ears are. Some people can hear more nuances in music than others. If you happen to be one of those that concentrate intently on your music listening sessions, the 32 bit may be well worth it. On the other hand if your listening habits are more casual, or lean towards HT, then the extra expense may not be worth it.

I personally don't consider myself an audiophile, but I have listened to the same manufacturers with both the DACs, and have heard a noticeable difference. I would advise trying that test. Same manufacturer, high end AVR, lowest priced 32 bit DAC, against highest priced 24 bit DAC.

[Deleted User]

Yes, what he said. When I got my mid-fi DAC, it made # number of redbook CDs sound like mofi. It also made some of my punk CDs unlistenable.

oh and yes of course your Marantz has a DAC. Did you end up w/ some Polk speakers?
The crutchfield "bundle" (DAC/SACD-CDplayer) w/ some bookies and I would be a happy guy! Easy.

David7544

There is absolutely no difference in sound quality between a 24 bit DAC and a 32 bit DAC. Noise floor and dynamic range are identical. The only reason for a 32 bit DAC is to play back source material which was recorded at 32 bits, of which there is virtually zero. No human on earth can hear a difference between the two bit rates, no matter what he thinks he hears. God, misinformation is annoying.

tonyb

Noise floor has more to do with the build in general of a dac than bits itself. There is far too many variables that go into how a dac sounds to say x doesn't matter.

ALL212

tonyb wrote: »

Noise floor has more to do with the build in general of a dac than bits itself. There is far too many variables that go into how a dac sounds to say x doesn't matter.

I usually use two x's....that way it does matter. Like this.... xx as opposed to x.

See - didn't you hear it?

Just funnin' ya - there are about 100 other things that could make a very good 24 bit dac sound better than a badly built 32 bit. And it does sound like the more expensive model has just a few other things going for it than the cheaper model.

Someone be BS'ing you just a little tiny xx bit.

tonyb

LMXX off !!

Touché bro.

[Deleted User]

thanks for jumping in a year later and clearing that up for us!
Sorry for any misinformation annoying you.

David7544 wrote: »

There is absolutely no difference in sound quality between a 24 bit DAC and a 32 bit DAC. Noise floor and dynamic range are identical. The only reason for a 32 bit DAC is to play back source material which was recorded at 32 bits, of which there is virtually zero. No human on earth can hear a difference between the two bit rates, no matter what he thinks he hears. God, misinformation is annoying.

FTGV

David7544 wrote: »

There is absolutely no difference in sound quality between a 24 bit DAC and a 32 bit DAC. Noise floor and dynamic range are identical. The only reason for a 32 bit DAC is to play back source material which was recorded at 32 bits, of which there is virtually zero. No human on earth can hear a difference between the two bit rates, no matter what he thinks he hears. God, misinformation is annoying.

Those two DAC chips are completely different animals beyond just their bit rates.Among several other differences,one has a single ended voltage output while the other has differential current outputs.This would require a different configuration in the analog sections following them.That alone could certainly result in sound quality differences.Also the increased noise floor afforded by the 32 bit device allows for digital attenuation to be implemented without any loss of resolution.