Hi Woody,Inspired by a buddy who was sending me pics of the JBL woofers he was refoaming tonight, I decided I needed to button up my 614 cabs. I had already installed the Cardas binding posts, so tonight I glued in the fiberglass battes using Super-77 Spray adhesive, and then wired up the posts to the 414s using Duelund DCA16 wire and Cardas silver solder. I put the backs on and the bass bins (as they were) are pretty much good to go.
I just need to decide how I want to mount my early style metal 32A horns and 802's. I'm thinking a kind of sled that has a motorboard with the horn back mounted, and then a flat base that I can mount my crossover and a support to which will just sit on top of the 614s. Like a "top-hat" speaker cab, but with not sides or top. Make sense. Thinking about solid 1/2 walnut for that.
Maybe I can get those done in the next week or two and finally give these things a listen. Also want to build some walnut stands ala. Kenrick Sound style.
- Woody
View attachment 8379 View attachment 8380 View attachment 8381 View attachment 8382 View attachment 8383 View attachment 8384 View attachment 8385 View attachment 8386
Hi Woody,
Thanks for the photos. The build looks great.
Did you try any other damping in the cabinet instead of the fibreglass? My current favourite in my setup with my 414 Shindo Petite Latour heavily influenced build is to hang a felt blanket from the top of the cabinet parallel with the front baffle. It hangs about half way back in the baffle.
I"m using in this particular build my earlier 414's with the lighter voice coil (and 16 ohm) which are similar to yours.
Westrex
Hi Woody,Hey Westrex,
I did consider some other options, but since these are pretty accurate Altec 614 cabs I wanted to keep it pretty close to what Altec did. This setup is what was inside the Flemenco cabs I had at one point. Plus I had the OC703 on hand.
In my Onkens I used 1/2” felt to fully line the cabinet and then hung a “curtain” as you describe behind my 416 woofer. It sounds great.
Interesting you have Petite Latours... my next project after these will be a Petite Latour “Homage” But aesthetically tweaked to my taste. I have another pair of 414’s and 802’s along with a mastmutter transformer based network and plastic 32C horns.
I will be lining that project with the same 1/2” felt I used in the Onkens. Debating on cabinet matierial between 1/2” or 3/4” Baltic. Do you have any insights you can offer? Understandably Shindo owners aren’t quick to post a lot of details on the insides of their speakers.
Thanks for the comments.
- Woody
In my system the felt blanket hanging half way along the cabinet sounded much better than felt on the back wall.OK. I have agonized over the subject of cabinets. I'll try to dig up some links to some interesting articles about "live" cabinets.
In the interim, here are a couple of internal pictures of Shindo's. Neither of them has any kind of insulation/padding etc.. Not sure about the back behind the speaker. One is a simple brace and the other uses some kind of dampening tar type paint.
For what its worth, I experimented with a mutitude of materials, from carpet and carpet backing to all kinds of foam etc, etc. and I finally ended up with nothing except on the wall behind the driver w some thick felt. I tried various degrees of bracing and the more I braced the better. I can say that finding the right combination of padding and bracing (and I'll throw in the port size as well) is the single biggest improvement I made in all the tweaking and experimenting. It was like Momma Bears pourage.... Too dark, too bright, not enough meat in the mid-range, muddy bass mucking everything up and on and on until it was just right.
Western Electrix said: The Altec 604 enclosure you have shown apparently uses that brace not so much to brace the cabinet but is used to keep the duplex securely held to the front baffle (because its a very heavy driver and the front wood is thin.
That makes sense. I have wondered how mechanically stable the Shindo cabinets could be given the thin cabinet walls, but the substantial bracing answers that. Also, I hadn't picked up on my phone that both of the photos posted by Doglv are Shindos. I assumed the one with the nice bracing was his own.
QUOTE- "In my system the felt blanket hanging half way along the cabinet sounded much better than felt on the back wall."
I have never heard of that until this thread w you and Joe both recommending it. One of these days I'm going to have to give it a try. Would love to see some pictures of what you guys are doing here. I think Joe just has his wrapped around the woofer.
Which Shindo is the first box showing cabinet bracing? All the Shindos I've seen either have a simple brace which was more to hold the driver in place or no bracing at all with very thin 'tone' walls? Also the vent hole looks bigger than any of the Shindo stuff I've seen.OK. I have agonized over the subject of cabinets. I'll try to dig up some links to some interesting articles about "live" cabinets.
In the interim, here are a couple of internal pictures of Shindo's. Neither of them has any kind of insulation/padding etc.. Not sure about the back behind the speaker. One is a simple brace and the other uses some kind of dampening tar type paint.
For what its worth, I experimented with a mutitude of materials, from carpet and carpet backing to all kinds of foam etc, etc. and I finally ended up with nothing except on the wall behind the driver w some thick felt. I tried various degrees of bracing and the more I braced the better. I can say that finding the right combination of padding and bracing (and I'll throw in the port size as well) is the single biggest improvement I made in all the tweaking and experimenting. It was like Momma Bears pourage.... Too dark, too bright, not enough meat in the mid-range, muddy bass mucking everything up and on and on until it was just right.
Which Shindo is the first box showing cabinet bracing? All the Shindos I've seen either have a simple brace which was more to hold the driver in place or no bracing at all with very thin 'tone' walls? Also the vent hole looks bigger than any of the Shindo stuff I've seen.
The felt blanket i use (and used for my Onkens) is much thinner than the ones you've shown. I found a little thinner was better for sound (in my system).
Western Electrix
Hi Doglv,Got it.
What do you think of this?
Unfortunately unavailable at both Amazon and Ebay.View attachment 8437ilabe at both