compaddict Messages: 86 Registered: April 2014 Location: Auburn, CA USA
Viscount
I can hear voices better now but something is still very wrong.
Something out of phase. When I switch to mono I hear a reverb or out of phase distortion.
Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
A misconnected driver will sound subtly wrong. It won't take the whole power response off, it will simply shift the nulls to being in front of the speaker instead of outside the speaker's radiating pattern. That's bad, and you don't want it. And it's noticeable. But rather subtle, really.
Any chance of making measurements? That will tell us what's going on.
compaddict Messages: 86 Registered: April 2014 Location: Auburn, CA USA
Viscount
A gentleman at diyaudio mentioned that L2 should have a 1.0mH instead of a jumper?
It was also mentioned on this site as well as a few other posts and suggestions.
Can you offer any clarity?
I ordered two new Delta 10's just in case I tightened them down to much.. A possibility.
tom-m Messages: 56 Registered: December 2009 Location: Texas
Baron
Look at the crossover diagram in the pdf file for the 7pi. On that page, the notes in the lower left corner talks about L2. The coil is needed for the Delta 10. Or use jumper for Alpha 10 or JBL mid. Also, when L2 installed, reverse tweeter polarity. For more info, see the notes in the pdf file.
Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
That is correct. The board was built for use with an Alpha 10.
I'm so sorry about that! I just noticed it. Been a busy time for us, what with the move and all.
So to resolve, you can either send back the boards and we'll install the 1.0mH coils or I can ship some to you. If you go the latter route, I'll throw in a tube of silicon adhesive, because you will want to put some under each coil as a cushion/mount for them.
Just let me know, we'll do it either way. So sorry, I can't believe I just noticed that.
compaddict Messages: 86 Registered: April 2014 Location: Auburn, CA USA
Viscount
Soldered in the coil and they sound much better now. The speakers were fine as well. Head to head outside the box against new the originals sounded better than the new.
I have to seal up the access panels a bit still but they sound much better.
I would not call them audiophile quality but I think I can get used to them for home theater.
Been playing with Yamahas YPAO and DSP a bit and that helps a bunch.
rkeman Messages: 78 Registered: March 2010 Location: Florida
Viscount
The midrange of the 7 and 6Pi cornerhorns is definitely "audiophile" quality. Have all of the crossover and construction issues been resolved? If so, are they placed in appropriate corners with the listening axis crossing a foot or so in front of the listening position? How do they sound with no equalization and run full-range? You've been through a lot with the build and it would be a shame not to get the most out of a design capable of superb performance.
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