|Originally posted by mastahkaz
I mean I only really need to use it once.
If you can afford it, you should hang on to the meter. If you ever move your speakers, even a little, you should recalibrate. I've heard some say that they check their calibration monthly.Here
is a decent overview of home theater calibration.
is an overview of the meter
By the way, I've used both the analog and the digital. The rap on the digital is that it's harder to read a varying digital readout. If you're using sweep tones, or other varying test tones, that may (or may not) be true. But with the noise tones from either your receiver or one of the disks (Avia, Digital Video Essentials, Sound & Vision, etc.), the needle on the analog, or the digital readout, just goes to it's reading and holds steady. In that circumstance I find the digital easier to read. Either will suffice. Get the one you prefer and can afford.
|RS' SPL meter is really that inaccurate?
Here are the Radio Shack SPL meter corrections