Originally Posted by Spec
Please note that I am not trying to start an argument, I am merely asking for clarification.
You stated "1 bit DAC". That to me reads as a misnomer... A DAC is almost always an IC that changes a binary bit value into a psuedo-linear voltage range.
Say the 8 bit binary value of 00000000(0) is "changed" into a reading of +0v and 11111111(256) is "changed" into a value of +5v.
For the range of an 8 bit DAC you will receive only 256 different values in the specified range, be it 0v to 1v or 0v to 100v.
A one bit dac would be capable of being in two states, 0 and 1, as such I dont see how it could be made into, for the purpose of car audio, anything worth listening to.
I guess theres argument for a "massively parallel" 1 bit dac design, but it would be more costly and produce no benefit.... At that point you could just use relays to interpret bit-levels, albeit very very sloppy.
I did look on Alpines site, and as with most car audio manufactures, there was no information available, does anyone have any idea?
Exactly why I'd never buy another HU in the single bit realm.
Their pre-amp section is little better than the discmans you'd find people jogging with on their hip.
You don't have to give up your first born for multi bit processing although you can spend $1500 real easy.
Seems like more multi bit DAC's are coming out in mfr's flagship lines.
Just read one recently that surprised me. Forget if it was Pioneer?
At any rate, I'll never go back.
Clarion makes just average stuff, but when I heard about their Pro Audio DRZ 9255 I had to buy.
Separate DC/DC converter, dual Burr-Brown 24 bit DAC's... and lots more, I was hooked. The sound is amazingly better than 1 bit units.
I did a few back to back comparisons with head units and amps.
Alpine Cda 9855 Sound was badly colored and overprocessed sounding
Eclipse CD 8053 ( I think) much cleaner sound but bass heavy (16v line driver)
and my current Clarion DRZ 9255 deep, clear staging and tons of headroom
Then did an amp shootout with
JL 300/4 4x75 VERY SHALLOW sounding. Loud and fairly clean, but dead to the ears.
PPI PCX 4125 4x125w Louder and cleaner than JL (oldschool PPI) but not as clean as the Mc
and my current McIntosh MC440M 6 ch 2x100 and 4x50 insance clarity, punch, colorless repro...
The difference was so worth the extra money spent.
I didn't give up the farm, but still got excellent sound.