I believe he is talking about the loss of quality with the Bluetooth connection versus a direct wired connection.
Correct, it is about 1/3 of a good quality CD, but listening is subjective, if you enjoy it, don't be concerned about it. Place a good CD in the Lexicon, and you will hear the difference of the highest bit rate in an Ipod and a "good quality" CD.
Make sure your ipod is set to the highest bit rate is the best thing you can do, most people listen to music in their car today versus the past. Saying they have 1500 songs at 128 bit rate, then feeding it into a high end audio system like the Genesis has just does not make to much sense.
Bluetooth will take you way lower than even highest MP3 bit rate, so my point is, I would not wait for a new 2013 model car for Bluetooth capabilities that produce at this point in time, poor sound and you will probably pay 5-7K more for the new model year car. It is like taking off your 17-19 inch
rims on the Genesis and putting 12 inch Smart Car
rims and wheels on it. But that is just my opinion, I may be wrong. I just purchased a $400 pair of Bluetooth headphones for traveling. A $70 pair of corded headphones was way better, I sent them back (though there are some good reviews on it, for as I say, music and sound is subjective, like the "best" beer or burger".)
Here is some stats from my valued encyclopedia, Wikipedia..........
MP3
The MP3 audio format lossy data compression. Audio quality improves with increasing bitrate.
▪ 32 kbit/s - generally acceptable only for speech
▪ 96 kbit/s - generally used for speech or low-quality streaming
▪ 128 or 160 kbit/s – Standard bitrate quality; difference can sometimes be
obvious[citation needed]
▪ 192 kbit/s - a commonly used high-quality bitrate and the maximum
supported by some MP3 encoders[specify]
▪ 320 kbit/s - highest level supported by MP3 standard
Other audio
▪ 800-bit/s – minimum necessary for recognizable speech, using the
special-purpose FS-1015 speech codecs.
▪ 1400 bit/s – lowest bitrate open-source speech codec Codec2.[13]
▪ 2.15 kbit/s – minimum bitrate available through the open-source Speex
codec.
▪ 8 kbit/s – telephone quality using speech codecs.
▪ 32-500 kbit/s – lossy audio as used in Ogg Vorbis.
▪ 256 kbit/s – Digital Audio Broadcasting (DAB.) MP2 bit rate required to
achieve a high quality signal.[14]
▪ 400 kbit/s–1,411 kbit/s – lossless audio as used in formats such as Free
Lossless Audio Codec, WavPack, or Monkey's Audio to compress CD
audio.
▪ 1,411.2 kbit/s – Linear PCM sound format of Compact Disc Digital
Audio.
▪ 5,644.8 kbit/s - DSD, which is a trademarked implementation of PDM
sound format used on Super Audio CD.[15]
▪ 6.144 Mbit/s - E-AC-3 (Dolby Digital Plus), which is an enhanced coding
system based on the AC-3 codec.
18 Mbit/s - advanced lossless audio codec based on Meridian Lossless
Packing.
Take Away: If you enjoy it and say, "it sounds good" then don't worry about it.[/QUOTE]