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Sensitivity difference relating to volume level

post #1 of 7
9/9/09 at 8:40am
Thread Starter 
Is there any link I can go to to configure the difference in the sensitivity level of speakers as it relates to the adjustments needed for a Pre/Pro and/or Receiver ?

I am thinking that the output of the amp would also be a factor.

I have two different locations and I use the Audyssey in both rooms.
I am just curious if there is a old school method.

Greg Lamont
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post #2 of 7
9/9/09 at 10:27am
Quote:
Originally Posted by yankee14 View Post

Is there any link I can go to to configure the difference in the sensitivity level of speakers as it relates to the adjustments needed for a Pre/Pro and/or Receiver ?

I am thinking that the output of the amp would also be a factor.

I have two different locations and I use the Audyssey in both rooms.
I am just curious if there is a old school method.

Greg Lamont
Trophy Club

Old school method? How about internal test tones, speaker level menu and a Radio Shack SPL meter?

If no test tones, then an AVIA or Video Essentials disc should work.
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post #3 of 7
9/9/09 at 12:04pm
The volume level on the display is no indication of how loud its actually going to be... loudness is affected by room size, amount of power given to the speakers and the and the sensitivity and size of the speaker, and the source, For example: DTS will be louder than Dolby, CD will be louder than Cassette due to the difference in mastering.
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post #4 of 7
9/9/09 at 1:14pm
Quote:
Originally Posted by Raymond Leggs View Post

The volume level on the display is no indication of how loud its actually going to be... loudness is affected by room size, amount of power given to the speakers and the and the sensitivity and size of the speaker, and the source, For example: DTS will be louder than Dolby, CD will be louder than Cassette due to the difference in mastering.

Raymond, I think the OP is asking about calibration since he mentioned Audyssey. Your comment about front panel displays is close to correct because overall volume level is relative to speaker levels. There are other factors affecting volume as well. Like you said, the room, distance and other factors. However the rest of what you said is nonsense.

There are no hard and fast rules concerning particular media, encoding and volume. It may be true in some occasions, but that is due to coincidence or set-up.

Just out of curiosity, where would LPs or FM radio fit into your model?
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post #5 of 7
9/11/09 at 11:27am
Quote:
Originally Posted by Easyaspie View Post

Raymond, I think

Just out of curiosity, where would LPs or FM radio fit into your model?

LP's skip when there is too much bass and as for FM there is'nt anything worth listening too that hasn't been played Hundreds of fimes over.
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post #6 of 7
9/12/09 at 9:48am
Thread Starter 
Quote:
Originally Posted by Raymond Leggs View Post

The volume level on the display is no indication of how loud its actually going to be... loudness is affected by room size, amount of power given to the speakers and the and the sensitivity and size of the speaker, and the source, For example: DTS will be louder than Dolby, CD will be louder than Cassette due to the difference in mastering.

I understand what you are saying in that those factors are an issue for each set up including mine.

I just thought that there may have been a "rule of Thumb" guideline that some great mind would have published.

I have a 7.1 set up and the L&R, Sides and Center are 90dB sensitivity and the rears are 88 sensitivity.
The 90's are all at zero and the 88 needs a 4.5 dB increase.
The amp is 200 watts per channel for all 7 channels.
The L&R and center are 10 feet from the listening area and rears are 10 feet also.

So I was just trying to see if there was a bench mark for the difference.

Thanks, it is a great forum

Greg Lamont Trophy Club
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post #7 of 7
9/12/09 at 10:03am
Quote:
Originally Posted by yankee14 View Post

I understand what you are saying in that those factors are an issue for each set up including mine.

I just thought that there may have been a "rule of Thumb" guideline that some great mind would have published.

I have a 7.1 set up and the L&R, Sides and Center are 90dB sensitivity and the rears are 88 sensitivity.
The 90's are all at zero and the 88 needs a 4.5 dB increase.
The amp is 200 watts per channel for all 7 channels.
The L&R and center are 10 feet from the listening area and rears are 10 feet also.

So I was just trying to see if there was a bench mark for the difference.

Thanks, it is a great forum

Greg Lamont Trophy Club

What exactly are you asking?

You have speakers with different sensitivity levels, right? The easiest way to deal with that is to have a receiver or pre/pro with an auto set-up/calibration technology built in. Like Audyssey or Yamaha's proprietary deal (YPPAO or something).

The other method is the one we used to all have to do. Some people still employ this method to check the settings of their auto set-up program or if they have older gear. It involves using the internal test tones in your AVR or pre/pro OR getting a hold of a set-up disc from Video Essentials or AVIA. You would need an SPL meter that can be attained from Radio Shack.

You would set the volume knob to some arbitrary number that you pick. It's best to use a relatively high setting like 70 or so. If you have a newer AVR set it to "0". Then go into your speaker level menu and adjust the levels to attain the same reading on the SPL meter, which should be on a stand at or near your listening position aimed at the ceiling.

In your first post you mention using Audyssey, is that not working for you?
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