LFE distortion?
michael_w
Posts: 2,813
hey im wondering if when you hook up your sub with the sub out and you turn the sub level (on the amp) to max will it distort like when you turn the volume on an amp way up or since its just a signal it will be fine to turn set the sub to max... Thanks for any imput.
Post edited by michael_w on
Comments
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Originally posted by michael_w
hey im wondering if when you hook up your sub with the sub out and you turn the sub level (on the amp) to max will it distort like when you turn the volume on an amp way up or since its just a signal it will be fine to turn set the sub to max... Thanks for any imput.
You could get a lot worse than distortion.
DO NOT turn the volume on the sub all the way up, you run a very good chance of damaging it. It should never get past 1 o'clock position!!!
Regards,
PolkThug -
I'm not talking about the volume control on my sub or amp... I'm talking about the sub out level on my amp, the control that lets you make certain speakers louder (can do it for center and surrounds too). Hope that clears up the question.
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If you are talking about the LFE output from your receiver then set that to 0 which is max.
For home theater use calibrate your sub level (not the LFE) to 3 - 5 db hot compared to the rest of your mains / surrounds. For music calibrate your sub the same as the rest of your surrounds or a little hot depending on your personal preference.
Agreed on the sub plate gain. Shouldn't have to go much further than 1:00 max (at least in my experience with different subs).
P. -
I think michael is essentially asking if pre-amps can distort the signal they produce, and the answer is yes, they can.More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
Ok people thx for your replies but this ....
.... was the answer I was looking forI think michael is essentially asking if pre-amps can distort the signal they produce, and the answer is yes, they can.
. Since I can set my sub out (on my reciever) on a scale from 0 (off) to 20 im guessing I should leave it at something like 10-15 for the max to minimize distortion? (just like not turning the volume knob past the 1 o'clock position) -
If you set the sub amp at 12 o'clock, what AVR setting is needed to match levels?
More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
Originally posted by Tour2ma
If you set the sub amp at 12 o'clock, what AVR setting is needed to match levels?
My subs are at 12 o'clock, and my AVR setting is at +2. Only way to really make it all match is with a test tone and spl meter.
Regards,
PolkThug -
Originally posted by michael_w
Ok people thx for your replies but this .... .... was the answer I was looking for. Since I can set my sub out (on my reciever) on a scale from 0 (off) to 20 im guessing I should leave it at something like 10-15 for the max to minimize distortion? (just like not turning the volume knob past the 1 o'clock position)
I would set the amp's sub-out between 5-9 and use the subs volume (gain) to raise the overall volume to get the spl to better match your speakers. I wouldn't go above the 1/2 way mark on the amp it will start to distort the signal and could (over a period of time) damage the sub even at low volumes. once you get it right and listen for awile you will be able to quickly notice what a distorted signal sounds like.
Dave -
Ive gotten advice to turn down sub volume level @ AVR to below zero settings (-3 or -5) to lessen distortion possibility. Then use sub gain level to adjust volume. Any thoughts on this?
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Originally posted by braveheart
Ive gotten advice to turn down sub volume level @ AVR to below zero settings (-3 or -5) to lessen distortion possibility. Then use sub gain level to adjust volume. Any thoughts on this?
That is true if your reciever has settings that start in the neg. and go in the pos. (example -10 to +10) In his case his reciever starts at 0 and goes up from there.
Dave -
I'll have to play with the sub and my spl meter when I get a chance and I'll let you know what my setting turn out to be. BTW thanks for the great response to my questions, you guys always seem to figure a way to help me out. Thanks!
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I played with my settings a bit and they ended up to be..... 10 on my reciever (on a 0-20 scale) and at the 12 to 1 o'clock position on the amp which is powering my sub.
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Sounds like a done deal to me...More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
That sounds about right. If you are watching a movie with good LFE and the sub sounds like it's starting to distort (maybe slight)turn the recievers sub level down 2 and turn the subs volume up to compinsate. You will not loose any of the signal by doing this, you will just clean-up the signal.
Good luck
Dave
