AVR's USB Input sounds lean...

elangoas

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I have never played any songs (FLAC) thru my Onkyo AVR's 818 USB port... Since i had few songs on pendrive (FAT32), plugged in to AVR's USB input and found that it sounded lean compared to the PC -> AVR thru HDMI...(Xbmc WASAPI Mode)... PC playback sounded so rich.....

Since both connections are Digital, what is making the difference.. Could someone enlighten here...
 
I played DSD files thru the USB port of my Denon X4100W and it sounded great, well now will compare and play thru PC as well as USB and revert back.

Will try FLAC, MP3 as well.
 
Even marantz USB sounds balanced and not lean.It depends on which USB receiving chip and its implementation.I found in car CDp,CD sounds balanced,but same songs sounds lean via USB.
 
Even marantz USB sounds balanced and not lean.It depends on which USB receiving chip and its implementation.I found in car CDp,CD sounds balanced,but same songs sounds lean via USB.

Another thing I have noticed is that the SD card sounds very nice with lot of gain compared to USB for in Car music system.
 
Interesting question.

I have earlier tried this option via my yamaha AVR and i didn't find any significant differences. Please note I was testing 320KBPS mp3 files only.
 
I will check the same song when played thru network with Onkyo android app when i get back home.. I think playing thru network is also digital...

This will make an interesting comparison of PC Vs Network Vs AVR's USB port for digital playback....
 
Here is an update... I tried playing the same song (FLAC file) 3 different ways in the AVR all of them digital connection...

PC & Network Playback (thru mobile app) sounded rich and full bodied than the AVR's front USB input...
 
I found in car CDp,CD sounds balanced,but same songs sounds lean via USB.
+1. I have tried various HU's and CD playblack definitely sounds rich notch or two above than USB playback through the same.

Here is an update... I tried playing the same song (FLAC file) 3 different ways in the AVR all of them digital connection...

PC & Network Playback (thru mobile app) sounded rich and full bodied than the AVR's front USB input...

Thanks. Great find.

Time to check with PC playback then. Playing via BDP (Sony s-480)gives a little more weight but the convenience that USB provides takes over for quick occassional music playback.
 
great... Looking forward to your findings...

Here is what I found, after a lot of changing sources and playing a same piece of music...
Song selected - Ishq Bina from Taal

I selected this single FLAC and same converted to MP3 V0 and played the same song through all the available options of digital playability, namely:
1. Network wired DLNA (Direct from AVR)
2. Network WiFi DLNA (From AVR)
3. Android WiFi DLNA
4. Bluetooth streaming thru Android
5. AVR connected to PC (Foobar) & HTPC (XBMC) via HDMI
6. USB in AVR

1-3 - sounded almost the same.
4 - sounded a little less rich, I guess due to Bluetooth limitation of bandwidth
6 - sounded similar, but I felt 1-3 being better as it was more rich.
5 - was the best. I dont know why, but playing music thru foobar with wasapi drivers sounded very much open and rich compared to all. Similar goes with HDMI connection with HTPC and playing thru XBMC.

FLAC's sounded more rich and full whereas, MP3's were less. Once you here FLAC's you do not want to go to MP3's. That's my opinion.
In all the above options the least preferred is the USB as "elangoas" stated. But in general if I talk in percentage basis playing thru USB was somewhere around 7-10% degraded, compared to all.

@elangoas, it was fun doing this, thanks for opening up this discussion.
 
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