In Reply to: Digital or Analog Meter? posted by Charm on January 5, 2002 at 15:35:54:
Go to radioshack.com and type in 33-2050 in the search section. I've used both and, in my opinion, this meter is easier to read from a distance and is just easier to use in general. Get a set-up disc that has either DD or DTS test signals and put it in your DVD player. There is usually a series of tones that can be generated by the receiver, but the discs are more accurate. You may need to move a sofa or chair, but the best place to set up the SPL meter is: on a tripod, at a 45 degree angle facing forward, at the height of your ears (when you sit). It should also be along the center line of the room. You'll need to set the meter for "SLOW" and "A-Weighted" on the 70dB setting. I will not go into details as to why the "C-Weighted" shouldn't be used, but there are some that will disagree. When you start the set-up disc, pink noise (don't use the 1kHz tone) will cycle through all of the speakers. You'll want to bring up the main volume control so that the left front speaker drives the meter to 75dB (theaters use 85dB, but that may be too loud for you or your system and it won't make a difference here). As the pink noise makes its way around the room, you will want to adjust each channel's level control (not the main volume control) so that it drives the meter to 75dB. The "trip around the room" may take several passes before you get them all right, so be patient. Also, unless all of your speakers are the same make and model, the meter is not going to "match" for every speaker, so just get it as close as you can (usually within 1dB). As for your sub(s), there are several variables -- I don't know whether you have full-range speakers, small speakers, a combination, a powered sub(s) or a passive sub(s) -- so I can't tell you in a sentence or two. Let me know the variables and I'll finish.
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Follow Ups
- the Analog meter - Joe Murphy Jr 22:35:29 01/05/02 (22)
- some "Y"s - Joe Murphy Jr 12:01:15 01/06/02 (8)
- Simple but also accurate - bstan 14:13:50 01/06/02 (2)
- You are 100% correct!!! - Joe Murphy Jr 14:35:47 01/06/02 (1)
- One method may be simpler - bstan 18:54:17 01/06/02 (0)
- Re: some "Y"s - Charm 13:34:11 01/06/02 (4)
- some suggestions - Joe Murphy Jr 15:24:23 01/06/02 (3)
- Re: some suggestions - Charm 21:13:20 01/06/02 (2)
- Re: some suggestions - Charm 10:42:18 01/07/02 (1)
- for CD player - Joe Murphy Jr 18:14:43 01/07/02 (0)
- Why the "A" response scale? - bstan 10:00:08 01/06/02 (11)
- Can't measure pink noise and compensate for meter... - lwang 11:16:35 01/06/02 (10)
- pink noise compensation is 2-3dB - bstan 11:49:15 01/06/02 (1)
- I mean the avg dropoff for the low freq range - lwang 11:56:51 01/06/02 (0)
- Re: Can't measure ALL pink noise with "A" weighting - bstan 11:47:05 01/06/02 (7)
- RS meter tweaks - bmar 19:46:47 01/08/02 (5)
- Re: RS meter tweaks - bstan 23:42:53 01/08/02 (4)
- Re: RS meter tweaks - bmar 16:02:59 01/09/02 (3)
- Re: RS meter tweaks - bstan 17:10:34 01/09/02 (2)
- Re: RS meter tweaks - bmar 21:08:49 01/09/02 (1)
- replaces BFD 1100 - bstan 09:05:58 01/10/02 (0)
- I have no disagreement about "A" weighing (nt) - lwang 11:58:47 01/06/02 (0)
- Why specified setup for SPL meter? - lwang 22:54:25 01/05/02 (0)