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My Tribute Speakers

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Project by Barry Crowe posted 04-24-2014 06:56 PM 1616 views 5 times favorited 12 comments Add to Favorites Watch

These are my Sonus Faber tribute speakers I have been hammering away at for some years. I finally got to a significant milestone. The speakers are about 98% done. I am waiting for the crossover components (from Solen Canada – they will design your crossover too) and when they are assembled they will reside in the speaker stands. You will note there is a port at back of the cabinet. My experimenting so far indicates that the speakers sound better, ie. more bass, with the port closed. Of course I will cross that bridge once I can hear the speakers in the proper room and speaker placement with the new crossovers burnt in. For that matter, these speakers probably need to be burnt in too. Even though I have owned these drivers for some years, I’m sure they have not been run for more than 50 hours. As well, I appreciate that these are way off the mark as a true Sonus Faber clone. The woofer is the same exact one as in the production models, but the Scan Speak tweeters will not fit in the baffle area I set aside for them. So, now I need to find a suitable tweeter that has not only the same specs, but attributes as my coveted Scan Speak tweeters. Plus, the replacement tweeters require a magnet and face plate smaller than 3 inches to fit in the baffle. The volume of the cabinets is also smaller than a Sonus Faber Cremonia Auditor (SFCA). I suppose my motivation was to get as close to the sonic experience that the SFCA offer and maybe come close to the beauty of my inspiration. I will admit I have a ways to go yet before these speakers are near that or refined. There are some optional metal accents yet to go on the baffles, WBT binding posts yet to be installed, new hand assembled crossovers with top flight components, matching wood stands, a couple more coats of finish with pore filler and two piece speaker grills. There are metal inserts epoxied into the baffles to affix the drivers and the woods are oak cut offs for the cabinets, quilted maple for the baffles and myrtle burl for the end piece of the cabinet where the ports and speaker terminals are. For anybody with interest, I hope to have the remaining items done within a month and the pictures will be posted as well. However, for many not as obsessed as I, I’m sure they are complete enough…maybe.

-- Supercrowe





12 comments so far

View muesli's profile

muesli

232 posts in 974 days


#1 posted 04-24-2014 08:19 PM

Real eyecandies! I would like to hear the sound.

View Mean_Dean's profile

Mean_Dean

5059 posts in 2613 days


#2 posted 04-25-2014 12:12 AM

If they sound as good as they look, you should be very happy!

-- Dean

View HillbillyShooter's profile

HillbillyShooter

5811 posts in 1758 days


#3 posted 04-25-2014 12:24 AM

Great looking speakers and I enjoyed your write up. Look forward to seeing the finished speakers.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View Nindwood's profile

Nindwood

134 posts in 1149 days


#4 posted 04-25-2014 05:12 AM

Very nice Barry. Rock on.

-- Narinder, Calgary, Ab. http://www.trimandcraft.ca/

View Barry Crowe's profile

Barry Crowe

66 posts in 1295 days


#5 posted 04-25-2014 05:15 AM

Thank you Narinder.

-- Supercrowe

View CampD's profile

CampD

1475 posts in 2952 days


#6 posted 04-25-2014 12:20 PM

Nice!

-- Doug...

View DocSavage45's profile

DocSavage45

7706 posts in 2308 days


#7 posted 04-25-2014 01:03 PM

When my hearing was such that I could hear the sonar detectors with pain it my head I built folded horn baffles and spent time tuning them. I can remember how interesting it was. Now they keep sending me hearing aid offers…LOL!

Really nice work!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View grizzman's profile

grizzman

7798 posts in 2769 days


#8 posted 04-25-2014 04:14 PM

these are beautiful, will you post your continued work here or will you re post them as a new project, as wi would like to see these to the finish line…

-- GRIZZMAN ...[''''']

View Barry Crowe's profile

Barry Crowe

66 posts in 1295 days


#9 posted 04-25-2014 06:08 PM

I view the speaker stands as a different, albeit a connected project and when those are complete and I give these speakers the final polish , I will throw them up under a new project post, with the speakers too. Thank you for the positive comments, they definitely help keep up the motivation. It is sometimes a lonely existence in my shop by myself. But, I feel strongly that I am on the correct path. After all grunt work is done and all the jigs, fixtures, methods and tooling is developed and perfected (I hope) I can look forward to a set catalog of products that my fledgling company can make and sell in sufficient volumes to make a living. Thanks again.

-- Supercrowe

View childress's profile

childress

841 posts in 3008 days


#10 posted 04-25-2014 06:49 PM

Those look really nice. Did you tune the port? If not, that might be why they sound better closed off.

-- Childress Woodworks

View Barry Crowe's profile

Barry Crowe

66 posts in 1295 days


#11 posted 04-25-2014 07:38 PM

I will try tuning once the crossover parts arrive and I can assemble them and secret them in the speaker stands. One complicating thing about the shape of the port I used here (oblong/oval) is that it will make finding a tube a bit harder I think. If I do end up with a ported box design, I may end up having to make the tubes. Perhaps I will use some walnut veneer I have handy. The rather expensive Scan Speak Revelator drivers for this long overdue project came from Vance Dickason, the author of The Loudspeaker Cookbook. I bid on them on eBay and he graciously provided and recommended a schematic for a crossover that I lost a long time ago, and a sealed cabinet. But, this little woofer (model # 15S/8531K01) is used in some speakers that go for $7000 a pair and those designs are always ported. Of course, these manufactures have the benefit of anechoic chambers, spectrum analyzers, computer modeling and big science that allows them to tune very well indeed. So, now after that dissertation is out of the way, I will try tuning, but I think I will need more cabinet volume to affect a properly tuned ported box. If I remember correctly, Vance recommended a cabinet volume of around .75 cubic ft. I am rather math dumb, so if I need to determine the actual cubic size of this cabinet, I will fill it with Styrofoam peanuts and see how much it took with a one liter ice cream container as my scientific, graduated measuring device. Over and out.

-- Supercrowe

View Manitario's profile

Manitario

2402 posts in 2349 days


#12 posted 05-06-2014 01:02 PM

Very cool! Would like to put a project like this on my “maybe in the distant future…” list

-- Sometimes the creative process requires foul language. -- Charles Neil

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