Alright, what am I doing wrong (or right)?

**Tcr** · **05-04-08, 01:29 AM**

Using a 2807 as pre with an ext SB card. Subs co-located in a(n) not too optimal location but the only available spot at this time. Mainly sitting in a 'null' located about 11' out from long side on the right wall in a 20'x40' room w/cathedral ceiling, open not sealed.

Planning to use an fbq2496 to smooth things out (it's actually sitting in the box right now, mocking me as I type)

Sooo...

**brucek** · **05-04-08, 06:55 AM**

You've demonstrated how important graph scale is...

The standard scale to use for subwoofer measurements is vertical of 45dB-105dB and horizontal of 15Hz-200Hz. Give that a try before you carry on. Use a target of 75dB.

brucek

**thewire** · **05-04-08, 04:35 PM**

How many subwoofers? What are they?

**Tcr** · **05-04-08, 11:54 PM**

Quote:

brucek wrote:

You've demonstrated how important graph scale is...

The standard scale to use for subwoofer measurements is vertical of 45dB-105dB and horizontal of 15Hz-200Hz. Give that a try before you carry on. Use a target of 75dB.

brucek

Sorry

I was playing around with the graphing and kinda forgot to re-apply. Thanks for the reminder.

A little better perspective.

**Tcr** · **05-05-08, 12:00 AM**

Quote:

thewire wrote:

How many subwoofers? What are they?

2x AV123 MFW-15's

**brucek** · **05-05-08, 06:36 AM**

You don't seem to have any peaks, but it's a bit humped between about 25Hz - 55Hz. A broad filter would likely take care of that. I wonder if moving your subs around and/or apart would solve that problem and you wouldn't need any EQ?

brucek

**Wayne A. Pflughaupt** · **05-05-08, 09:36 AM**

Quote:

Tcr wrote:

Sorry

I was playing around with the graphing and kinda forgot to re-apply. Thanks for the reminder.

A little better perspective.

Ted, that looks like a highly smoothed graph. Make sure it's set for no smoothing. Look for the "Smoothing (octaves)" dropdown under the "Trace Adjustment" button on the left side of the screen

Regards,
Wayne

**Tcr** · **05-06-08, 12:51 AM**

Quote:

Wayne A. Pflughaupt wrote:

Ted, that looks like a highly smoothed graph. Make sure it's set for no smoothing. Look for the "Smoothing (octaves)" dropdown under the "Trace Adjustment" button on the left side of the screen

Regards,
Wayne

Thanks Brucek and Wayne. Same measurements without 1/3 octave smoothing applied. I'll post some more measurements in a couple of days with a couple of changes in setup.

Anything else you guys can think of?

**brucek** · **05-06-08, 07:12 AM**

Quote:

Anything else you guys can think of?

Measure at 75dB. Your level is quite high above target.....

brucek

Shack Stores	Affialites
Electronics Store	Aperion Audio	Axiom	Best Buy	Blockbuster Video
Home Theater Systems	Buy Electrical Direct	Buy.com	Cambridge	CinemaNow
Home Theater Receivers	eBay	Musicians Friend	Newegg	OneCall
Movies and Music	Radio Shack	SonyStyle	TigerDirect	ToshibaDirect
Canada Store	Vanns	Walmart	zZounds
U.K. Store

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Alright, let me try this again	Vaughan100	REW Forum	9	03-05-08 03:32 PM
LLT placement, would this be alright?	ccdoggy	DIY Subwoofers	3	04-30-07 10:38 AM
alright I am going to buy a BFD but which one	doreytp	BFD Forum	9	04-23-07 06:05 PM
what am i doing wrong?	apilon	REW Forum	2	03-12-07 11:10 PM
What did I do wrong?	Kingrsl	REW Forum	1	03-07-07 09:42 PM

Advertisement