My 4520 project

[Eaulive]

Another party this week-end... no victims

[Lee in Montreal]

Nice pair...

[Eaulive]

It is indeed beautiful

[Lee in Montreal]

Hey Oli, I'd be curious to know how you have set your crossovers points. I am asking as I have just tried a 6db slope at 90Hz with Q-1.4 and it works nicely. I also run a 6bd boost at 35Hz, the 4520's cut-off.

[Eaulive]

Hey Oli, I'd be curious to know how you have set your crossovers points. I am asking as I have just tried a 6db slope at 90Hz with Q-1.4 and it works nicely. I also run a 6bd boost at 35Hz, the 4520's cut-off.

I set them up for SR, and I have a 12dB/oct HPF at 30Hz and _if I remember well_ I cross them at 150Hz at 12dB also.

I have to check my driverack and I'll tell you.

I didn't do much tuning on them so far, and all by ear.

[Lee in Montreal]

I set them up for SR, and I have a 12dB/oct HPF at 30Hz and _if I remember well_ I cross them at 150Hz at 12dB also.

I have to check my driverack and I'll tell you.

I didn't do much tuning on them so far, and all by ear.

I found that tuning by ear brought the nicest results. I use the RTA only to ensure I didn't do anything stupid, or just to fine tune some small areas. If I rely on the RTA only and get a flat response, I find the sound boring. So, I guess I love "coloration"...

BTW When do you have time to work on my three Yamaha P2200?

[Eaulive]

I found that tuning by ear brought the nicest results. I use the RTA only to ensure I didn't do anything stupid, or just to fine tune some small areas. If I rely on the RTA only and get a flat response, I find the sound boring. So, I guess I love "coloration"...

BTW When do you have time to work on my three Yamaha P2200?

My kids are leaving next week, so I guess I will be more quiet after this, I'll let you know

[Eaulive]

Ok, it was the next party of the season today. A private school to which I'm very related had its "back to school" party so they ask if I had the SPL... I said oh yeah!

It was outside but even if I had a license to drive all I wanted, I had to keep about 10-12 dB below max to be sure not to endanger the kid's ears.

We made a safe area circle with cones around the stacks (3 meters) because some kids wanted to sit in the scoops.
Even with this and the volume down I had peaks at 115dB 3 meters away.

Pictures will come soon.

No 2225 got hurt in the process.

[Lee in Montreal]

... because some kids wanted to sit in the scoops.

What's wrong with that? Bass is good. You probably spotted the bassheads...

[Eaulive]

What's wrong with that? Bass is good. You probably spotted the bassheads...

Indeeds but parents would not approve
I wouldn't let my kids do it either, not at that volume.

[Lee in Montreal]

I am telling you, bass is good...

[Eaulive]

Hey, I can do the same

[grumpy]

Just spare us any personal reenactment of the 'vintage' pic shown here :

http://www.decware.com/imperial.htm

[Eaulive]

I have a picture of my ex wife laying on my subwoofers, we we married she turned them into a couch

[Eaulive]

Pictures just arrived