In Reply to: Some measurments... posted by Ivan303 on October 14, 2020 at 10:37:35:
I typically measure at the listening position and adjust the volume to be around 75db and just run the whole sweep of tones from the old Stereophile disc. Depending on your meter, there may be adjustments to the numbers.
That said, mine are nearly dead flat with the JBL 2440 and D130 with the straight 80hz horn. I think you've got the folded horn which is different.250 79
315 78
400 80
500 77
630 76
800 78
1K 77
1.25 77
1.6 74
2 76
The 2440 is padded down with another resistor across it. Don't ask me why, Bruce put that one in. I picked the padding from a breakout box that Bruce had.
-Rod
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- Your numbers are all over the place.... - Rod M 10/15/2014:04:15 10/15/20 (0)