REW Forum

**B_Pay** · **09-17-09, 09:08 PM**

Hey everyone,

These are a couple of graphs for my sub and speakers...this doesn't look very good does it??

B&W 804S mains and HSU STF3 sub in a 12x18x8 room.

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Graph with smoothing
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**MikeD** · **09-18-09, 06:38 AM**

Can you position your sub somewhere else?

**B_Pay** · **09-18-09, 07:17 AM**

Possibly, I'll see if I can find another spot for it.

What's up with the 100-300 hz range?

**Wayne A. Pflughaupt** · **09-18-09, 07:35 AM**

That is certainly curious. You might try measuring each front speaker separately.

P.S. Welcome to the Forum!

Regards,
Wayne

**B_Pay** · **09-18-09, 10:56 AM**

I'm having trouble posting the graphs but I did redo it with a new sub placement. Not much difference really. I did raise my levels prior to running it this time and that seemed to help a little bit with the 100-300hz range. My sub still has a large increase at around 20hz and a big dip at just over 40hz. I'll try and post em later.

Thanks for your insight and welcoming me to the forum.

**tonyvdb** · **09-18-09, 11:37 AM**

What are you running for a crossover on the sub and do you have the B&Ws running full range or do you have a HPF set for that as well?

**brucek** · **09-18-09, 11:49 AM**

Quote:

I'm having trouble posting the graphs

Go to the post padding thread and put in enough posts (5) so you can post graphs.....

brucek

**B_Pay** · **09-18-09, 09:18 PM**

Quote:

tonyvdb wrote:

What are you running for a crossover on the sub and do you have the B&Ws running full range or do you have a HPF set for that as well?

The crossover for the sub is set at 100hz and the B&W's are set at Large.

Emailed HSU and they recommended an external EQ device like Antimode 8033. I looked into this but I have a few questions on it. Would a receiver with Audyssey MultEq do the same thing as this Antimode 8033? I need a new receiver anyway so I'm hoping that is the case. If not I'd rather do it myself using the Behringer which is much cheaper. It's my understanding that it will require a little more work on my part.

The other option is that HSU offered to modify my amplifier to give me an overdamped (more rolled off) response to help reduce the deep bass peak. My sub is currently set for Max Extension so I'm not sure if that is adding to this deep bass peak issue.

I'd like to see what some of you guys think....and girls if there are any in here.

**seattle_ice** · **09-18-09, 11:05 PM**

What is the layout of your room and where are the sub and speakers positioned now?

**brucek** · **09-19-09, 06:31 AM**

Quote:

an external EQ device like Antimode 8033. I looked into this but I have a few questions on it. Would a receiver with Audyssey MultEq do the same thing as this Antimode 8033? I need a new receiver anyway so I'm hoping that is the case. If not I'd rather do it myself using the Behringer which is much cheaper. It's my understanding that it will require a little more work on my part.

The BFD is much cheaper than the Anti-Mode, but does require a bit of time educating yourself. There are lots of people here that can help with that.
Audyssey doesn't seem to be able to tame the large resonant peaks, so most people here use a BFD to take care of the major bumps in the response of the sub and then run Audyssey to smooth it all out along with the full range EQ it performs.

Quote:

The other option is that HSU offered to modify my amplifier to give me an overdamped (more rolled off) response to help reduce the deep bass peak. My sub is currently set for Max Extension so I'm not sure if that is adding to this deep bass peak issue.

I would personally not go this route. I would add a BFD and get a new receiver with Audyssey as the best option.

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