Originally Posted by pissant
Rythmik....when I plug the rcas into then LFE IN vs the LINE IN, it definitely is much more musical and defined.
The LFE is much better sounding than the lineIN. Seems like its actually playing notes now vs rumbling noise.
You meant the LFE by itself, or LFE plus front speakers?
This reminds me another customer I had before. He had very expensive gears (I cannot remember the exact brands) that he wanted to impress me with. But he said our sub is defective and he explained he "calibrate" the sub by listen to the sub by itself using a full range signal feeding to the sub. I hope you don't follow this step
No speaker designer will calibrate his tweeter by just listen to the tweeter by itsef. It is the integration of the tweeter with the woofer that is important and that involves crossover. The same principle goes to the integration between sub and front speakers. LFE sound louder because it has 200hz bandwidth so you hear far more information. The line-in sound less loud because our hearing is not as sensitive to below 100hz as the signal between 100hz and 200hz. For subwoofer channel, you don't need full 200hz. You just need to find the right crossover and phase adjustment.
Volume is also louder going LFEIN, but still doesn't seem that loud.
If you need, you can turn the volume all the way up. The volume knob is more of the gain matching than an indication of how loud it can play. Customers would use our sub volume between 12 o'clock position to 3 o'clock position. Other sub gets too loud already at 9 o'clock position. That is actually a disadvantage. One customers told me his H** sub has only two volume settings, either loud bass or no bass because there is not much room for adjustment between 9 o'clock and 7 o'clock (vs between 12 o'clock and 7 o'clock).
But the LineIN is definitely just rumbling now that I can hear notes actually being played in the LFE IN.
But the LINEIN should be the preferred way correct?
Does this mean something is defective?
LFE does not have phase control and crossover control capability. But those two are important. If your preamp has phase control capability, then you can use LFE IN. LINE-IN is for the setup there is no external bass management (not even a LPF).
Lastly, our subs does sound cleaner. It takes time to realize that (or as other said "get used to").Edited by Rythmik - 9/2/12 at 10:27pm