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Re: 4Pi - alternate compression driver mounting? [message #95141 is a reply to message #94478]

Thu, 27 January 2022 22:21

areohbe
Messages: 20
Registered: May 2021

Chancellor

Wayne - I'm sorry but I have a few quite a few questions about proper measurement technique...

I've dug through the forums and found answers to some but not all of my questions. So here we go...

How "wide open" of an area do you need be in to reap the benefits of testing outside? I'd imagine this depends if your testing with speaker laid on its back or upright?

The performance measurement page indicates the mic should be placed 10 feet from the front baffle. Does this differ depending on the measurement device or any other variables? I am using a UMIK-1.

How important is the quality/type of amp used?

The measurement page says a drive voltage of 8.2vrms was used. Do I need to measure my amp's vrms? Or is this not relevant if I am sending a signal from REW out of my laptop into the amp? (I feel really dumb for asking... does it matter what level the "bass" and "treble" gains are set at?)

Related to vrms, do I need to worry about this "Calibrate Level" setting in REW?

/forum/index.php?t=getfile&id=2993&private=0

Thanks in advance, Wayne. Really appreciate the care and energy you put in here.

Here's a pic from some preliminary tests the other night. I'm a bit bashful to share my results until I know I am doing everything correctly. Sad

/forum/index.php?t=getfile&id=2994&private=0

Attachment: Rew - Calibrate Level.png
(Size: 70.29KB, Downloaded 527 times)
Attachment: 1st Attempt.png
(Size: 892.96KB, Downloaded 512 times)

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[Message index]

		4Pi - alternate compression driver mounting? By: areohbe on Tue, 21 September 2021 13:16
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Wed, 22 September 2021 08:57
		Re: 4Pi - alternate compression driver mounting? By: alexg on Wed, 10 November 2021 11:35
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Wed, 10 November 2021 16:25
		Re: 4Pi - alternate compression driver mounting? By: alexg on Sat, 13 November 2021 11:03
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Sun, 14 November 2021 00:23
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Mon, 29 November 2021 12:03
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Wed, 22 September 2021 13:11
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Wed, 22 September 2021 14:53
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Wed, 22 September 2021 22:53
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Thu, 23 September 2021 02:03
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Thu, 23 September 2021 07:59
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Sun, 02 January 2022 20:31
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Mon, 03 January 2022 09:40
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Tue, 11 January 2022 21:17
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Fri, 14 January 2022 18:25
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Sat, 15 January 2022 20:36
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Sun, 16 January 2022 10:56
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Thu, 27 January 2022 22:21
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Fri, 28 January 2022 12:13
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Fri, 28 January 2022 17:38
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Sat, 29 January 2022 10:41
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Sat, 29 January 2022 20:33
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Mon, 31 January 2022 01:43
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Mon, 31 January 2022 09:21
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Mon, 31 January 2022 14:08
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Mon, 31 January 2022 15:00
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Mon, 31 January 2022 16:05
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Fri, 04 February 2022 20:15
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Sat, 05 February 2022 10:43
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Sun, 06 February 2022 20:07
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Mon, 07 February 2022 10:25
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Fri, 06 May 2022 14:55
		Re: 4Pi - alternate compression driver mounting? By: Wayne Parham on Fri, 06 May 2022 15:23
		Re: 4Pi - alternate compression driver mounting? By: Barryso on Sat, 07 May 2022 08:26
		Re: 4Pi - alternate compression driver mounting? By: Rusty on Mon, 09 May 2022 05:58
		Re: 4Pi - alternate compression driver mounting? By: areohbe on Wed, 11 May 2022 15:11

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