 Re: SUB Volume???
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Joined: Jan 2007
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shareholder in the making
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The main volume on your receiver controls the volumes on all of the channels. What do you mean "...how is it doing this when all the other levels are remaining unchanged?". What "other levels" are you referring to? Maybe you should draw a diagram so that we can see what you are trying to say  .
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Re: SUB Volume???
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Joined: Jun 2007
Posts: 85
old hand
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OP
old hand
Joined: Jun 2007
Posts: 85 |
Quote:
The main volume on your receiver controls the volumes on all of the channels.
What do you mean "...how is it doing this when all the other levels are remaining unchanged?". What "other levels" are you referring to?
Maybe you should draw a diagram so that we can see what you are trying to say .
All of the speaker(s) volumes, except the sub, are controlled by the amount of watts they get from turning the volume knob on the receiver up or down. The line level from the receiver to the sub remains at 10 and it does not change no matter what the volume on the receiver is set at. Also, the volume knob on the sub itself remains static at 7 no matter what the receiver's volume is set at.
So in order for the sub volume to go up with the rest of the speakers, SOMETHING has to be changing in the signal/line-level that is being sent to the sub because it is the only signal the sub is receiving from the receiver.
Sheesh, now I'm getting corn-fused! 
"Tis better to desire that which you do not have, than to have that which you do not desire!"
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Re: SUB Volume???
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Joined: Sep 2004
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shareholder in the making
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shareholder in the making
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See if this helps: 
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: SUB Volume???
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
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This has pretty much been answered, but I'll explain it a different way.  On this chart, the blue bars represent the dB level of each speaker as measured from the listening position with no correction or calibration applied in the receiver. The orange bars represent the amount of correction applied in the receiver during the calibration process in order to get the speakers to the same level (again, as measured from the listening position). The thin horizontal line at the top of the graph represents the "reference level" to which the speakers were calibrated. Let's say that the sub was set to 10 (like yours is) in order to get it to the reference level. The other speakers needed different levels of correction -- some more, some less -- as you can see. These correction levels are stored in your receiver and allow the receiver to give each channel the proper level of signal so that they play at the same loudness relative to each other, regardless of the master volume setting. Any clearer, or did I make it worse? 
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Re: SUB Volume???
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Joined: Jun 2007
Posts: 85
old hand
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OP
old hand
Joined: Jun 2007
Posts: 85 |
If the line level to the sub remains at 10 all the time, how can the volume on the sub increase just because the volume on the receiver is turned up? The volume on the receiver increases the watts to the speakers hooked up with speaker wire, not a coax cable.
I'm going home, I'm hungry. Sorry for the dumb question.
"Tis better to desire that which you do not have, than to have that which you do not desire!"
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Re: SUB Volume???
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Joined: Jun 2003
Posts: 8,488
axiomite
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axiomite
Joined: Jun 2003
Posts: 8,488 |
The line level on the sub doesn't remain at +10 all the time. It remains at +10 relative to the other levels.
bibere usque ad hilaritatem
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Re: SUB Volume???
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
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Quote:
All of the speaker(s) volumes, except the sub, are controlled by the amount of watts they get from turning the volume knob on the receiver up or down.
No. When you change the main volume, the sub's volume should change too. The main volume acts universally across all channels including the sub.
Quote:
The line level from the receiver to the sub remains at 10 and it does not change no matter what the volume on the receiver is set at.
No. See my previous comment.
Quote:
Also, the volume knob on the sub itself remains static at 7 no matter what the receiver's volume is set at.
Agreed.
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Re: SUB Volume???
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
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Re: SUB Volume???
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
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Some more clarification. The volume adjustments take place at a point in the signal path in front of the amplifiers. The location of the amps is irrelevant. It just so happens that the amps for all the channels but the subwoofer are contained in the receiver. If your receiver has pre-outs, the master volume knob will affect all those line-level outputs, too.
Last edited by pmbuko; 07/19/07 08:34 PM.
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Re: SUB Volume???
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
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Nice graph and explanation, Peter. You should be a technical writer .
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