Mic placement

[Tommy D]

When using the ECM8000 should it be aimed at the sub or does it matter? Tommy

[Tommy D]

Ooops. that was my first measuremnt.

[JohnM]

Best to point the mic straight up. Measurement looks fine but best using the standard graph scalings to see it in context - 15 to 200Hz and 45 to 105dB, use the graph limits button in REW (right hand side of the toolbar, 2nd from right) to set the scales.

[Tommy D]

Gotcha on the graph. Any suggestions on the peak between 30 & 40 hz? I have two Peerless XL12's with passive radiators. As seen in the pic. Tommy

[Tommy D]

Picture

[Tommy D]

Can't seem to post a picture. I'll have to figure this out. Tommy

[salvasol]

Tommy D wrote:

Can't seem to post a picture. I'll have to figure this out. Tommy

Just use the "Add attachment option" when you write a post (scroll down and you'll see it)

[Wayne A. Pflughaupt]

salvasol wrote:

Just use the "Add attachment option"...

On the "Go Advanced" page.

Regards,
Wayne

[Tommy D]

The image is too big. How do I down size from 2048x1536 to 1000x1200? For the mean time each sub is under the left and right front mains.

[salvasol]

Tommy D wrote:

The image is too big. How do I down size from 2048x1536 to 1000x1200? For the mean time each sub is under the left and right front mains.

I'm not a computer geek ...what I always do is open the picture with paint and then re-size it, I'm sure it can be done with other programs; maybe you can post what you have in your computer and I'm sure somebody will guide you through

[salvasol]

Tommy D wrote:

Any suggestions on the peak between 30 & 40 hz? I have two Peerless XL12's with passive radiators.

You need to repost the graph with the correct scale (45db-105db and 15Hz-200Hz) ...it will look different and you'll see exactly what dip/peaks you really have

[Wayne A. Pflughaupt]

Tommy D wrote:

The image is too big. How do I down size from 2048x1536 to 1000x1200?

When you click the floppy "save" icon (bottom left corner of the REW graph), it will ask you how big you want the picture. Enter "800" in the field; that's the largest size you can upload to our server.

Regards,
Wayne

[salvasol]

Tommy D wrote:

Can't seem to post a picture. I'll have to figure this out. Tommy

So we're in the same page with Wayne ...What are you trying to post??? a picture of your setup or a REW graph???

[Tommy D]

Here's the graph. It's picture of the setup that I need to down size. TommyD

[Wayne A. Pflughaupt]

Tommy D wrote:

It's picture of the setup that I need to down size. TommyD

Ah. Do you have Microsoft Office Picture Manager?

Regards,
Wayne

[Tommy D]

I got it! This is the front end setup. TommD