Poor Bluetooth Quality (headset)

[okashira]

This is my first phone with bluetooth and first time using a bluetooth headset.

Using a Sprint Mogul with newest ROM and Radio, using a new plantronics voyager 520 headset, bought for its reputed audio quality.

The sound quality I've been experiencing with the headset & the mogal is poor. It sounds like a downsampled version of the audio you would hear directly from the phone. The phone sounds fine, almost exactly like my old audiovox 8910 (although the microphone is not as good) The audio also varies in volume, somtimes fading in and out, although not commonly.

I don't get complaints about the quality on their end (i.e. the mic of the headset)

The range is also VERY poor. I can't even place the phone in my right pocket (with the headset on my right ear) without getting static and fading.

in summary:

-poor bluetooth audio quality (sounds downsampled)
-fading in and out sometimes
-very poor range, static unless phone is within 3 feet, static even if phone is in pocket

One of the major reasons I got a new phone was for bluetooth support, I am within 30 days of my recent sprint contract, will be returning it if i cannot find a solution.

Is this a 'feature' of this phone, or true for all bluetooth devices? I will be trying this headset with another phone first chance I get.
Is anyone else experiencing these issues?