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Old 23rd January 2005, 09:12 AM   #1
al r. is offline al r.  United States
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Unhappy 47 labs Hotei speaker

I was wondering if anyone has seen the speaker? Being though, some of the forums speak highly of and have been influenced by the gaincard/flatfish dac and the concept in general, if anyone has any ideas as to what drivers are used (9" full range, crossed over at 20K/6db to a ribbon driver in a reflex box) It can be seen at the site. I marvel at the price: $12K!!!
The Oris system for me, is looking much, MUCH better as a buy. For that matter, would ANYONE have a clue as to how the Mayahorn, is constructed? Can't get plans or the box from Welborne or otherwise...
Many thanks,
al r.
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Old 23rd January 2005, 03:02 PM   #2
juggle2 is offline juggle2  United States
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Got any links?
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Old 23rd January 2005, 03:41 PM   #3
phn is offline phn  Sweden
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Try this for starters: http://www.6moons.com/industryfeatures/ces05/ces_8.html

Might be better ones out there, but nothing on the 47 Labs site yet.
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Old 23rd January 2005, 10:40 PM   #4
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Default Re: 47 labs Hotei speaker

Konnichiwa,

Quote:
Originally posted by al r.
I was wondering if anyone has seen the speaker?
Not on these shores.

Quote:
Originally posted by al r.
if anyone has any ideas as to what drivers are used (9" full range, crossed over at 20K/6db to a ribbon driver in a reflex box)
The drivers looks not like anything I have noticed conciously before, but I think you will find a suitably similar black cone one somewhere, which comes close enough in general performance.

The Box appears more like an apperiodic design from the looks than BR, suggesting a high(ish) Q driver, I'd look in 8" Polycone Ceiling Drivers.

Ribbon, looks kinda like Aurum Cantus, may be another company, there are many around nowadays and I think design and performance are largely identical, but note the waveguide before the ribbon.

Quote:
Originally posted by al r.
For that matter, would ANYONE have a clue as to how the Mayahorn, is constructed?
Looks to me like a standard 18" Folded bass Horn from PA designs. There are a few variations on the same general theme, this one may be from the Fane Booklet, not certain, plans float around the web.

Sayonara
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Old 24th January 2005, 11:54 PM   #5
ScottG is offline ScottG  United States
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Looks like an white epoxy treated ciare ph250 (with perhaps some modification to the whizzer cone)

http://www.ciare.com/pdf/catalogo/PH250.pdf

http://www.ciare.com/pdf/Progetti/My...peaker/H07.pdf

Worth 12k? (- considering what the ciare costs)

Only if you have serious money to burn..
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Old 25th January 2005, 04:43 AM   #6
BrianGT is offline BrianGT  United States
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It is on the Sakura Systems news page:

http://www.sakurasystems.com/news.html

--
Brian
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Old 25th January 2005, 04:49 PM   #7
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IMO the cone looks like a clone of the Hartley's FR driver. For Hartley FR driver instead of using a whizzer, a "tweeter" was attached to the center of the speaker. The Hartley's speaker cone was a canvas type of material coated with white rubber compound.
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Old 25th January 2005, 07:10 PM   #8
Variac is offline Variac  United States
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Waveguide like a Pass Rushmore
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Old 26th January 2005, 10:38 PM   #9
ScottG is offline ScottG  United States
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It does look a little like the hartley's, perhaps on purpose?

The tell-tale features of the cone indicating that it is the ciare are:

1. cone diameter (a 9 inch cone is typically derived from a 10 inch driver)

2. 1st order crossover at 20kHz (which coincides with the freq. response of the ciare nicely)

3. Looking closely at the driver pic where the maker is resting his palm on the speaker. You should be able to notice dark "rings" on the diapharam's surface - indentation rings that the ciare has and would presumably "show-up" with a white polymer coating.

As for the whizzer cone it appears to be reduced in size (diameter) and given a surround that is glued to the main cone surface.

The "wave guide" I believe has little to do with actually wanting a wave guide . Instead it is more about the baffle and how the woofer is mounted to the cabinet. In this instance I believe the baffle has bolts extending rearward on the back of the baffle and the driver is mounted on to these bolts with nuts. In otherwords the driver is mounted to the front baffle from the rear of the baffle. To reduce diffraction effects the "wave guide" is added to the baffle.

Note that mounting the driver like this also helps to hide its origin..
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Old 26th January 2005, 11:10 PM   #10
Variac is offline Variac  United States
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Would be fun to compare the Ciare with the cheapo Pioneer with whizzer. http://www.partsexpress.com/pe/showd...number=290-045


Who sells the ciare in the US? or anywhere? got a link?
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