JBL LSR 308 in the house

[Name]

I recorded a frequency sweep in REW last night. This is what I get with the JBL's and the PB16 ultra. I used the frequency sweeps to match the volume level on the sub for a pretty flat line (slightly sloped toward the bass end of things) and this is what I get with no room correction. I did move my listening position slightly forward and it helped with the dip I was getting around 150hz. This is with 1/6th smoothing.

 

[300dollarcablesWOOT]

it helped with the dip I was getting around 150hz.

When you say help - do you mean completely fixed? I'm new to all this, but I don't see any issue at 150Hz here.

 

[Dj7675]

@RayDunzl
I am thinking about using these as main speakers in a home theater for r/l/c. If crossed @ 80hz can they do reference level? I generally listed @ -10 but sometimes louder. I don't really understand the distortion graphs. Can you explain the distortion graphs a bit?

 

[FrantzM]

@RayDunzl
I am thinking about using these as main speakers in a home theater for r/l/c. If crossed @ 80hz can they do reference level? I generally listed @ -10 but sometimes louder. I don't really understand the distortion graphs. Can you explain the distortion graphs a bit?

Not Ray

I am using: 3 LSR 308 as LCR, 2 LSR 305 as surround. I have reached 112 dB at the listening position. I didn't care to go louder.

 

[Dj7675]

What is your seating distance?

 

[FrantzM]

What is your seating distance?

About 12 feet from the center speaker. I use, 3 Parts Express 15 inches subwoofer, controlled by a miniDSP 2x4.

 

[Dj7675]

About 12 feet from the center speaker. I use, 3 Parts Express 15 inches subwoofer, controlled by a miniDSP 2x4.

Thanks. I am at around 13 with two of https://www.parts-express.com/dayton-audio-18-ultimax-subwoofer-and-cabinet-bundle--300-7099.
I’m going to give it a go. Got the 308P MKII @ $189 each delivered. Looking forward to them arriving and giving them a try.

 

[Sal1950]

Thanks. I am at around 13 with two of https://www.parts-express.com/dayton-audio-18-ultimax-subwoofer-and-cabinet-bundle--300-7099.
I’m going to give it a go. Got the 308P MKII @ $189 each delivered. Looking forward to them arriving and giving them a try.

That multich rig should seriously rock! Have fun.
PS, What are you using for a pre/pro? Just curious.

 

[Dj7675]

That multich rig should seriously rock! Have fun.
PS, What are you using for a pre/pro? Just curious.

Denon x8500... granted it is funny using the 308P MKII with it. I have the JBL 708P in the living room with a minidsp shd. I just didn’t want to get 3 more of them for the theater. If the 308P’s don’t work out, I’ll either return them and get the Revel F35/C25 instead for the theater. Or get 1 more 708P to do 3 708P in the theater and something else for the living room.