Titan 48 (OSB panel), Beyma Power15, GDN-38-550-8-AE

[jzagaja]

This is my Titan 48:

http://youtu.be/u73lNro99cY

driven with Beyma Power 15 and GDN-38-550-8-AE (Qt=0.9). Do you see air leaks on impedance plot?

[Bill Fitzmaurice]

No obvious air leaks, but a few resonances, probably from using OSB, which is not suitable for speaker cabinets.

[jzagaja]

True - I wanted to have something light and quick on New Years Eve. 40Hz dip is too strong compared to your samples?

[Bill Fitzmaurice]

True - I wanted to have something light and quick on New Years Eve. 40Hz dip is too strong compared to your samples?

Not necessarily. I didn't test mine with that driver.

[jzagaja]

Simulation. Impedance of real speakers is shifted toward lower frequencies.

[netwerks]

True - I wanted to have something light and quick on New Years Eve. 40Hz dip is too strong compared to your samples?

OSB...light????

[jzagaja]

Ok. maybe not light but certainly a lot cheaper to experiment - I wanted to see how my drivers behave.

[Rick Lee]

OSB...light????

Actually, only 2 lbs. heavier than regular plywood.

[Lastcat]

[jzagaja]

I sealed internal walls and covered OSB with felt. Impedance has changed as you can see because I removed 6mH coil.

[Bill Fitzmaurice]

What 6mH coil?

[jzagaja]

I disassembled my Beyma Power 15 from aperiodic enclosure (5 cu. ft), put in Titan48 and forgot remove low pass filter. In comparison to closed box bass is more felt on body but this is ca. 70Hz not 40-50Hz We'll see on Monday. It vibrates quite a lot

[jzagaja]

It cost me no more than $50 plus woofer.