|
EP500- Flat Vs. Half Trim Setting
|
Joined: Dec 2004
Posts: 93
old hand
|
OP
old hand
Joined: Dec 2004
Posts: 93 |
All- I go back and forth on this quite a bit likely due to the square nature of my room (20x20x10) and it just dawned on me that when I use the Rat Shack SPL meter to calibrate, I should not worry about the 75db output between the two setting as that is simply a function of the volume setting HOWEVER, is what I should be doing looking at how much the needle moves back and forth within that range? What I mean is the Trim setting that stuck the closest to 75 DB w/o "going back and forth" as much during the test tone would be the best setting right?
Thanks as always guys.
M60
VP150
2x QS8
EP500
HK 7300
DENON DVD-3910
Sony 60" SXRD
|
|
|
Re: EP500- Flat Vs. Half Trim Setting
|
Joined: Oct 2005
Posts: 156
veteran
|
veteran
Joined: Oct 2005
Posts: 156 |
Darth,
I'm not sure if I am understanding your question Are you using the analog RS SPL meter, and you are you are running through a frequency sweep?
Generally speaking, you want to choose the trim setting that will give you the best frequency response. So the setting that stays close to 75dB would be desirable.
However, keep in mind that if you want to me more exact, you will have to use some correction factors. At lower frequencies, the meter understimates SPL.
|
|
|
Re: EP500- Flat Vs. Half Trim Setting
|
Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
|
shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
That is a pretty big room, according to the pamphlet you normally want to use Flat for large rooms and Full or Half for small to medium sized rooms.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
|
|
|
Re: EP500- Flat Vs. Half Trim Setting
|
Joined: Jun 2005
Posts: 1,189
connoisseur
|
connoisseur
Joined: Jun 2005
Posts: 1,189 |
If you are doing full frequency sweeps, then choose the setting (flat/half/full) that gives you the flatest response curve. Then after making your choice, re-calibrate to 75 dB with the SPL meter.
|
|
|
Forums16
Topics24,945
Posts442,486
Members15,617
|
Most Online2,082 Jan 22nd, 2020
|
|
0 members (),
1,206
guests, and
3
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|
|