Radio Shack sound pressure level meter instructions

ntg

Ok you guys I know this has been beat to death-but


I have been reading the instructions for the SPL and it says to move speakers around to get the levels correct.Is this a must?I have all my speakers mounted and or in a place I like them.Can I do the set up and get it close with the reciever setup without moving anything?My subs are built in to the front speakers.(rt 2000i)

Thanks

PolkThug

You don't have to move your speakers around

faster100

yeah, set the volume of what you like to hear and move all the speakers till they register at 75 or 85db.. now your speakers might be all over the room, but radio shack has been in the business and they know..


Actually he's correct, put the speakers where you want them and then calibrate the speaker levels with the meter and the channel adjustment and enjoy

ntg

I know it sounds like a dumb a@# question but the link was one that I got off of a thread here.The instructions say systematically move your loudspeakers and listener positions until you get the readings you are looking for 0dB.

Thanks

faster100

Not the optimal way to do it, take the above advice and your golden.. welcome to the Club, Polk that is

ntg

I have another stupid question.I am new to this calibration thing and just want the facts so please bare with me.Do you mess with the delays or just the seperate speaker adjustments.

Thanks

PolkThug

For final tweaking, you can mess with the delays if the speakers are at various distances from your listening position.

JKnPA

NTG,
Just curious, where in the instructions does it say:" move the speakers around to get the levels correct".
This is a link to the RS SPL meter...............

http://rsk.imageg.net/graphics/uc/rsk/Support/ProductManuals/3302055_PM_EN.pdf
Jk.

PolkThug

Here's some reading for you:

http://www.polkaudio.com/downloads/hthandbook.pdf

ntg

JKnPA,
This is the link I saw-http://www.audiophilia.com/hardware/spl.htm
Like I said did a lot of reading and this confused me.You guys are the experts I am just here for the ride.Thank you for the other link.

Thanks

JKnPA

NTG,
I read that article too because I am interested in getting a 'SPL' meter to do some measurements.
I think you mis-interpreted what he said. He stated that small movements of a few inches can make big differences in the readings. This is part of the article.......................................................

Unless you got extremely lucky, your first set of measurements will indicate fairly gross deviations from the 0dB measurement obtained with the pink noise track. In that case, systematically move your loudspeaker and listener positions in small increments, of say two inches or less, and repeat the measurements. Try and resist the urge to make large spatial changes between measurements. Remember, moving a loudspeaker one or two inches can have a radical effect on measured frequency response (after each change in loudspeaker and/or listener position, don't forget to readjust your system's volume so that the pink noise track measures 0dB on the meter with the dial at the 80dB setting).
................................................................................
* Most of us here are not experts........ :rolleyes:
** The RS manual just tells you how to make accurate readings; nowhere does it imply moving the speakers around the room, for those others who thought it was funny! ...............;)

faster100

JKnPA wrote:

* Most of us here are not experts........ :rolleyes:
...............;)

you havent been around long enough, the self proclaimed experts will show up sooner or later

danger boy

1234

Jockos

While on the subject I was thinking about getting a meter. The shack has 2, an analog and a digital. Which one is better?

Thanks Jockos

Frank Z

Analog is a better choice.

Here's some more stuff to read.
http://www.audiophilia.com/hardware/spl.htm

JKnPA

faster100 wrote:

you havent been around long enough, the self proclaimed experts will show up sooner or later

******************************************************
I don't claim to be an expert, but I do have a degree in electronics and have worked in industry/military for 30yrs. I'm here to learn more about the present day amplifiers and speakers being used today. If I can help others here who know nothing about the electronics used in 'audio'........ I try to help!
Do you have a degree in anything, or are you just a 'Salesman'?
I've read some of your posts........ I'm not impressed!......;)