C-Note - Iron Driver Build

[bolland83]

Re: C-Note - Iron Driver Build

I bet they sound as good as they look (awesome!), that's a great driver combo

[Ron_E]

Re: C-Note - Iron Driver Build

Ron, those looks great! I am just getting started with veneering, can you give some details of how you finished these speakers? I am starting by refinishing a pair of old Realistic speakers. See here. I have refinished these by simply sanding and rubbing Circa 1850 tung oil on them. I did 4 coats, rubbing 0000 Seel wool inbetween coats. They look great! Have a very nice sheen and good color. I want to protect the wood, so am thinking to do wipe-on polyurethane as well. I want to get it just right though, I'd hate to put anything on right now that makes the finish look worse.

By dark walnut danish oil, do you maen a pre-mixed oil and stain type of thing? I was thinking of using semi-gloss myself, but yours seem to have a bit of sheen with the satin finish.

The Tung oil will protect the wood all by itself. Yes, the product I used was an oil and stain mixture by Watco. http://www.rustoleum.com/CBGProduct.asp?pid=46 Our local Lowes stocks some. The Watco product says you can put Poly over the top if you wait 72 hours. I've used wipe-on and regular satin poly as a top coat. You can probably do the same with Tung oil. If you can't verify that's OK I'd do a test piece.

Ron

[dcibel]

Re: C-Note - Iron Driver Build

The Tung oil will protect the wood all by itself. Yes, the product I used was an oil and stain mixture by Watco. http://www.rustoleum.com/CBGProduct.asp?pid=46 Our local Lowes stocks some. The Watco product says you can put Poly over the top if you wait 72 hours. I've used wipe-on and regular satin poly as a top coat. You can probably do the same with Tung oil. If you can't verify that's OK I'd do a test piece.

Ron

Thanks for the info. The tung oil I used says specifically that it does not contain any wax or varnish, which is why I thought to put poly over top. I'd like to be able to set a drink on the wood without fear that it will leave a ring.

[RcDuck]

Re: C-Note - Iron Driver Build

I'd like to be able to set a drink on the wood without fear that it will leave a ring.

+1

[Ron_E]

Re: C-Note - Iron Driver Build

I forgot to mention that I rubbed the finish out with Pumice stone and then Rottenstone. http://www.woodcraft.com/product/200...e-4f-1-lb.aspx I make a slurry with Paraffin oil and rub the finish out with a piece of felt on a sanding block. I was looking for a video and ran across this short one on rubbing out oil finishes. http://www.youtube.com/watch?v=CAZ9I...eature=related

Ron

[Ron_E]

Re: C-Note - Iron Driver Build

I've re-tuned the port to around 36Hz and there's substantial improvement in the low end. The images are R-Carpenters original response measurements, the new near-field and port summed response and the new impedance.



The response looks a little better than the original design simulation.



The current port length is 5 5/8". The 1/2" Baltic birch cabinet external dimensions are 27 x 12 1/2 x 8. There was a small piece of 1/4" plywood behind the tweeter so there was something left to fasten the tweeter to after cutting the rebate. The port is 4"s from the bottom. The tweeter is 18"s from the bottom with the woofers evenly spaced above and below with an 8 1/2" center to center spacing.

These will be in Grinnell this weekend.

Ron

[Ron_E]

ImageShack has dropped most of the images from this post so I've put them on Google Drive. https://drive.google.com/drive/folders/1NfusS6W4bf3lnJiKloNqlMdlwyNYWp2M?usp=sharing

Ron

[Geoff Millar]

Value, thanks Ron: these are great looking and sounding speakers!

Geoff