My summer project 2008

[SMKSoundPro]

Dear Keith,

Pm Sent!

Scotty.

[keith141]

Replaced 2226H with 2235H. ( Thank you, Scott.)

With 2226H, I was getting tight bass with punch, but VLF was somewhat missing.
After the change, I have lower bass with 2235H. But I felt I lost punch and slam slightly that 2226H was producing.


After reading this thread: http://www.audioheritage.org/vbullet...ad.php?t=21726

I closed 2 ports with Zilch Plugs, and adjusted setting of 3110A.
Now I am getting deeper base and punch which I like.

[SMKSoundPro]

Keep playing them! It only gets better.

Everything is working out and Keith's "project" speakers look great!

Stay in touch and keep posting.

Scotty.

[johnaec]

You'll also probably have to bring down the relative balance to the horns now that you've got 2235's in there, because I don't believe they're as efficient as the 2226's were. So once you've matched the horns to the 2235's, you would then need to bring the overall volume up to match the earlier conditions, which should theoretically bring back the "punch" that was diminished...

Anyway, let us know how it goes.

John

[keith141]

You'll also probably have to bring down the relative balance to the horns now that you've got 2235's in there, because I don't believe they're as efficient as the 2226's were. So once you've matched the horns to the 2235's, you would then need to bring the overall volume up to match the earlier conditions, which should theoretically bring back the "punch" that was diminished...

Anyway, let us know how it goes.

John

Yes, that is what I did.

Sensitivity of 2226H is 97dB and 2235H is 93dB. So I brought down 2425J/2370A to match up to 2235H and also I increased 077 slightly to balance with extended base.

The result is much better than when I first installed 2235H in place of 2226H without any adjustment. I got back the "punch" I had with 2226H although it is slightly different.
I am happy with this result.

Keith

[johnaec]

It'd be interesting to see what some RTA EQ would finally do to that system. It looks like it now has some serious potential! 'Great work!

John

[gsb001]

Nice work. Thanks for sharing.
Fun thread to read. I have a pair of 4671-OK's with the 2225H's. Neat to see how you can mod them.
Steve