My original Zero DAC headphone amp also just stopped working out of the clear blue recently.  Does anyone have a schematic for it?  I suspect it is the DAC board and not the power amp board because I can hear the hum from each channel through the headphones as I touch and probe the audio IC chip...

Hey it's now 05/17/2015 as I reminisced through these headphone forums... and see, yep, everyone went to sleep on this thread and never answered. I don't remember what had transpired exactly between then and now but all I know is that I have a Zhalou DAC headphone amp in my collection that I...

I agree with much of your points however, I have no issue with the AZIO or Supertech CSR USB 4.0 AptX enabled dongles.  They work perfectly fine for me for streaming AptX to my Bluetooth headphones and receivers.  I have now both the Avantree Priva (bought it again cheaper on eBay)  and I have...

I just want to update y'all on this. Avantree never sent the new Priva to test.  Said that they will be delayed due to problems with the new unit still.  So I don't know if they really are going to send me a new unit to test or if they were just trying to give a good PR image. Looks like they...

As far as I have experienced with my MDR-1RBTMK2 AptX connection sounds smoother than non-AptX connections. I don't think it will make a difference in the amount of bass response you hear with AptX vs SBC connection. When I first got the headphones I thought I heard more of a mid-bass hump when...

I've thought about that idea many times! But I feel bad about the $200+ USD that I wasted on them lost!   I may one day try putting the dampening mod in place to see if it would diminish some of that midrange peak. However, I don't think covering that vent up would increase the bass, it most...

Actually I believe I had really broken these headphones in a long time ago as I said.  I ran them for hours and hours on end with all kinds of loud music (bass, midrange and treble) and even ran my pink noise and white noise tests through them. It's not that they sound horrible. Just that I was...

Okay, thanks for confirming that some were made in China. I was concerned because I had read that folks with original Sony's had "Made in Thailand" on the underside of their headband.  I guess they started manufacturing them out of various locations. Maybe the ones made in China sound worse than...

Hi , wow! So you are saying that the ones I have and have shown here are the real Sonys? Then I can't vouch for everyone raving about the sound quality out of them. Mine sound like crap from day one to now 8 years later when all the materials in them should have settled out and mellowed out. ...

Here are a few more pictures of my particular set of Sony MDR-7509HD headphones with "Made in China" stamped underside the headband purchased in year 2007 on amazon.com... Are they like the real Sony's or are they fake?! I think these are fake ones since the sound is terrible out of them.  But...

Reviving this thread since I just discovered that the Sony MDR-7590HD headphones I bought off of amazon.com back in 2007 probably are fakes. I always wondered why they sounded like pure crap when there were so many rave reviews for their sound.  I was so disappointed in them that I threw them...

I agree with this assessment of the MDR1RBTMK2.  They do have a mild mid bass hump both wired and Bluetooth mode.  They are not lacking in bass presentation.  They present overall a very well balanced sound from highs to lows.  They are detailed without being harsh in any part of the spectrum. ...

Hi, my battery had a good charge on it too out of the box so that might not be a tell tale sign.  The battery on this headphone lasts a long time. It's pretty good.  If there is nothing wrong with it, you might as well keep it.  My MDR-1RBTMK2 turned out to be great well balanced Bluetooth...

I bought my pair from amazon.com too but paid $295 for them. They've then dropped the price down to $285 right after I bought them and then upped the price again to $288 I see. Anyway, I got what seemed to be a brand new one and my box outer sleeve cover does not have extra stickers stuck over...

Hello Class D, yes I am aware of all the settings modes and yes the Sony MDR1RBTMK2 is exactly the same as your MDR10RBT setup.  I also just received my other pair of Sony MDRXB950BT today (from Japan) and they are configured exactly the same way using the power on/off button and the Volume...