Folks, there were a number of very interesting posts that talked about the use of the analog Radio Shack SPL/dB meter to get an idea what kind of frequency response one is getting in their control room. The gadget is rather inexpensive so I went for it and gave it a go. I have to say that I have not been able to get any consistent readings. I am not saying that my speaker system is crap and the FR is all over the place (which it might be but that is not the issue), but tiny variations in holding the unit or positioning myself (...I know about the effect at low frequencies) can result in up to 6 or more dB of difference. With speakers (hopefully) in the 1-3 dB tolerance range this renders the results obviously useless. What am I missing? Is it my room (only 8'x12', IMO pretty well "foam-controlled")? Any advice on how to conduct some useful measurements will be greatly appreciated. Thanks in advance, MisterBlue.