 
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
|
|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
I have a existing 2ch system where I have a sub x-over(@50hz) hooked up btw the pre and power amp. Now integrating the 5ch system(feeding L/R to the existing preamp, C & Rears to its own amp,) I can't utilize the LFE output to the sub, and any Y connector setup from both the 2ch preamp and LFE would be too complicated, if not impossible.So I end up setting the front to large and no sub. At the current setting(level matched @50hz,) I don't get my sock knocked off when building collapses, earthquakes or planets blowing up. There is no problem with the sub because when playing via 2ch source, organ music, kickdrums & bass guitar does have more oomph with the sub vs w/o it. Do I have to crank up the sub a certain db? I read something about 6db, but am not sure.
Any info would be helpful.
Follow Ups:
the LFE output through your crossover to the sub amp. Signal from 2 channel output ...direct to front amp. This requires that both the 2 ch pre and proc get a siganl from the CD player. I run analog to my 2 channel pre and a digital out to the proc. Use the proc to control sub volume when listening to 2 channel. You could also omit the crossover and use your proc if you can. You might need to adjust polarity between the fronts and sub if the 2 ch pre / proc are different. Plan on spending some time integrating your fronts/sub. Note your current positions/settings before you start to change things to make it easy to go back if it doesn't work for you. For low freq I really don't think I'm missing much by using the proc rather then a pre. And it's certainly more convenient then swapping cables!!Good Luck!!!
The sub has 24db/oct low pass and high pass, which I use to remove all freq below 50hz from my main speakers. If I understand you, then if I hook up the sub to the proc's LFE and play the bass through there and rest from the pre-amp to main, I still don't remove the low frequencies from my main speakers, and they will result in woofer bottoming(I have magnepan MG-3A, with limited bass excursion) on high bass passages.
The reason it does not rattle is because the LFE channel (which stands for Low Frequency Effects) is the ONLY channel used for sub-sonic felt effects. Cranking your sub will just cause it to be overdriven and will not have even close to the same effect as using the LFE channel. The LFE channel is designed primarily for those jar to the bone effects when viewing DTS or DD. Not using the LFE, yet having a subwoofer connected to the main speakers does not have the same effect. setting the 5.1 to no sub will automatically defeat any LFE. one thought could be to set the sub to yes and have the x-over set to the minimum it will go, this MAY still send some LFE to the L/R channel if the x-over goes low enough.i still don't quite understand your wiring.... could you elaborate on the use of the sub in your system?
-Sam
My setup is:
DVD CD
| |
Pre/Proc DAC
| |(Front) |
(Rear)| +---------------+
| |
Amp 2ch-preamp
| |
Rear spkr Xover
+---+---+
| |
SubAmp Amp
| |
Sub Front Spkr
When I play CD's I adjust the volume via my 2ch amp.
When I play DVD's I set the 2ch amp at 12 o'clock position and do the controls via the pre/proc
For DVD-A, haven't decided how to do it(since I don't have 5.1 direct on my pre/proc.)This is the only way to hook 2 systems up.
I am keeping my 2ch preamp because it is of superior quality to the pre/proc.
Sorry, i've been away from my computer for a while....Hey, i just thought you could device an A/B type switch that would allow for your set-up as is when you listen to music and switch when you want to play a dvd....
So, the 1st input would come from the Pre/Proc's LFE channel and the 2nd input would come from the Xover as you have it now.... the ouput from this switch would be going into the sub. The beauty of this is that by by-passing the xover with this switch during DVD playback you would not sacrifice quality because the appropriate range of freqs would be sent to the front channels already! just a matter of getting it made or making such a switch yourself.... if there ain't one out there already
It would be a simple switch box with 2 RCA ins and 1 out!
what do you think?
-Sam
I don't think this would work, since the current setup, the 2ch preamp goes to the sub, which then sent the higher freq to the main speakers's power amp & to the speakers. If switched to the HT setting, the main fronts would still be hooked to the sub.If it was to work, it would be a A/B switch that simultaniously did a whole bunch of switching like:
In A setting:
LFE pre out to sub amp
Front pre out to Front AmpIn B setting
Pre out to sub amp
Sub high pass to front amp
Sam,I believe the typical operation of most HT processors routes LFE bass to the L&R main speakers if they are specified as Large and Sub=NO is specified.
Do you have any specific examples where this is not the case?
Yes, the standard DD setup allows for sub=no or LFE = no, but doing so i have never been able to achieve the rumble out of the main speakers that you achieve by sending the LFE directly to a sub. I have had the same experience with 3 different DD/DTS receivers is have had. I believe that what i happening is that when the sub is set to 'no' then the dynamic range may be compressed to not allow the ultra-lows to be sent to the 'large' speakers.... don't know this for a fact, just my own observations. has anyone here been able to reproduce the rumble with the sub set to no?-Sam
My Toshiba 9200's DVD player's internal AC-3 decoder to its own 5.1 output does not reroute LFE.And from what heard, the Acurus ACT3 w/advanced bass managemnt does not do t on DTS either, but it does w/o the adv bass mgmnt
I did say typically, which means there will be some who didn't take the time or care to implement this feature in the software.Even my extremely inexpensive Technics SH500 DD/DTS processor re-routes LFE.
More crank more boom. Crank your sub's dial to 11 (not 11 o'clock) for max bang.
This post is made possible by the generous support of people like you and our sponsors:
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
