petew Messages: 72 Registered: June 2011 Location: Albuquerque, NM USA
Viscount
The Finish Line!
I completed the speakers. Wow! They sound fantastic.
Here are a couple of closeups of the crossovers and mounting brackets that I 3D printed. I split the bracket into two parts to fit the print bed on my Bambu printer. The brackets have keystone panels for the banana jack inserts. I downloaded a print for the keystone panel and modified for this use.
petew Messages: 72 Registered: June 2011 Location: Albuquerque, NM USA
Viscount
Here's a shot of the room with the speakers installed.
I had an error on one of the crossover boards that killed the output from the tweeter (see if you can spot it!). Once I got that sorted out I got to really hear these speakers for the first time.
I rate them 11 out of 10. They exceed my expectations by a mile! I started out using the Dolby Surround Upmixer which engaged the 4pi center. I switched to stereo and killed off all the processing in the receiver for the rest of my listening to date.
I've been spinning albums with Roon/Qobuz since I got them running. They sound excellent with everything that I have thrown at them - Rock, Country, Jazz, Classical. Everything sounds fantastic. They are very revealing and I'm hearing details in recordings that have not been there before, except with headphones.
The bass extension digs deep and they play LOUD with Denon receiver power.
I have a ton of interconnects and speaker cables from amplifiers to the structured wiring to complete. I'm currently working on finishing up framing on the screen wall which involves CAD work on the screen and masking structure. I'll staple spandex to the framing for a temporary acoustically transparent screen so I can confirm my plans for image size and location.
I should have all channels and projection functional this week. I can't wait to get an image up on the wall! It's been way too long since my damn dishwasher flooded me out. The wait is worth it though.
Thanks Wayne for your outstanding designs and support during this build.
Wayne Parham Messages: 19027 Registered: January 2001
Illuminati (33rd Degree)
That is one fantastic setup you have there! Looks great!
I really don't see your crossover mistake. I can't see all the component connections, but it appears L1, C2 and C3 and the R1/R2 bank are all installed right. I see you've installed C1 instead of Rs, so that gives a little more sparkle up top. But nothing I can see would kill the tweeter. What was it?
That board is tough to populate for the seven Pi's. Stuff is everywhere.
petew Messages: 72 Registered: June 2011 Location: Albuquerque, NM USA
Viscount
Look at the upper XO in the pic above. C3 is shorted to ground instead of passing through L1. I found the mistake with a bit of sleuthing and the fix was easy. Luckily I used the silicone in moderation when I assembled the crossovers.
Wayne Parham Messages: 19027 Registered: January 2001
Illuminati (33rd Degree)
Ah-HA! Good eye!
And - yes - I see it now. There are two crossovers in your uploaded image labeled IMG_1668.JPEG. The one in the foreground is correct, but the one in the background is wrong, just like you said. It's kind of blurry in the photo, cause the camera is focused on the crossover in the foreground. But you can see the bad connection.
If you click on the image link below the photo in the post, and then click on the pic when it's displayed, it will zoom in and you can really see it.
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