2416H vs 2418

[Guido]

For those interested I measured a 2418 vs a 2416H in a 4425.

Seems that the 2418 is only slightly more efficient and can easily be used as a substitude for the 2416H.
Good news I think as the 2418 is cheaper and the dia's are much cheaper too.

Sonically it sounds perfect after padding it with the mid L-Pad to app. -2 dB and match the other speaker (with2416H) very well.

[Guido]

Impedance

2418 is brand new while the 2416H is well used. Thats why the 2418 resonance peak is so high. Usually it will drop a bit.

[Robh3606]

Just wish you could drop the adaptor that fits the 2416/2426 on it for the 3 hole flange mount horns.

Rob

[Zilch]

http://www.loudspeakersplus.com/html...oadapters.html

PC-25?

Also, we wanna SEE these DIY 4425's and crossovers. They in another thread here?

[Guido]

I'll post pics later. This new project can't be found nowhere in the forum. I did 4425 DIY for myself earlier but these are new.

This time I built a new pair for a friend.
I used the 2214 from porschedpm. Thanks again!
I used original 2416H
I used special made copys of the 2342. Unfortunately with bolt on so I needed to use the P-Audio Adapter. The copys are very close to original. Only the finish need improvement. But I'll care for this later. From this 2342 copys I can have as much as i need
I used DIY crossovers with high end caps and film/foil PP and PS bypass.
Sounds awesome!

As said, pics later.

[Guido]

Could the rising impedance from 5 kHz upwards be caused from the ferrofluid?

What happens with the ferrofluid when changing the dias?

[Guido]

The small red caps are PP and PS Film/Foil bypass caps.

Yeah!

[Guido]

As said, I still have to work on the horn finish

[Guido]

Reworked Horn finish. Still not perfect but for prototypes it's fine