Originally Posted by seriousfun
The reason why the LFE channel is unneeded in music mixes is that each of the other channels is already full-range.
This is a NON-reason.
Well then...your speakers are not full range.
How many "full range" speakers are really
full range? Very friggin' few! Otherwise, there would be a much smaller market for subwoofers!
You have every right to live with them.
I do and I love them. Do you have "full range" speakers that have a flat frequency response down to 20 Hz and below? I don't know of ANY speakers that are truly "full range". When I use the term "full range", I use it to differentiate from sattelite/sub systems. I don't think anyone uses "full range" to literally mean perfectly flat frequency response across the audible spectrum. Even the most high-end "full range" speakers might
benefit from the addition of a subwoofer.
If you want their respective channels to be reproduced full-range, you will have to integrate the subwoofer with them. The integrator is called Bass Management.
Quite right. In my system, the "integrator" is me and "Bass Management" is proper blending of the subwoofer using its low-pass filter and volume control (which I have done using a spectrum analyzer and pink tones). This approach lends to the perfect mains/sub blend on probably 90% of commercial discs AND this particular DSOTM DVD-A - no digital signal processing needed - pure, 100% analog stream from player through preamp through amp to speakers - BLISS!
No one can turn off the subwoofer when playing this mix because it was mixed with the delivery of this LFE channel in mind - the mix would have been different if the LFE channel hadn't been used.
Oh really now. Sounds like you know something that I don't! As a matter of fact, the mains are straight on, full, unaltered transfers from the original quad master tape. There is no "mix" (beyond the original). The LFE is provided simply to fill out the bottom end that virtually no "full range" speaker can truly offer
The only safe treatment, for many, many reasons, of bass in a music mix is to mix the bass content to one or more of the main speakers. Your system without bass management and mine with bass management both will present this mix differently than how it was heard in the mastering facility (of course all systems will be different...but this one starts out with a handicap, which the originators probably considered an advantage), and with the inclusion of a manufactured LFE channel, there is never a chance of consistency outside the mastering facility. No LFE content gives a mix a fighting chance at consistency.
Dude, you are way, way, WAY overanalyzing this and on top of that your assumptions are completely wrong. This disc is simply a 4.0 transfer from the original quadraphonic master tape. All four channels are complete, unaltered, from the 1973 mix LONG before subwoofers were a consideration, ergo the term QUADRAPHONIC and not 4.1 or some variation. The LFE channel is completely redundant to the extent that your main speakers are really, truly full range, but in most cases the LFE will allow people with real world full range speakers to blend in the missing very bottom end. Additionally, it allow boneheads like me, who abhor any additional and/or unnecessary DSP, to have an attractive option.
And you know, it really is about having that option. If there were no LFE, I would have no option other than DSP-based bass management. For people like you who demand the DSP-based management, you have the option as well: disconnect the LFE input from your pre-amp!
It's the old tea too strong vs. tea too weak dilemma. It is easier to water down the tea than it is to strengthen it, so it makes sense to produce stronger tea to most easily
satisfy both camps. The same is true with this particular
Thus, this particular title
would be handicapped if it did NOT
have an LFE!
the authors of this disc for their EXCELLENT choice in the LFE presentation. It really does offer the widest range of choices...
...even if it does mean you have to water down your tea.