Could the Hawthorne Silver Iris be used in a enclosure - diyAudio
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Old 29th August 2010, 01:44 PM   #1
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Default Could the Hawthorne Silver Iris be used in a enclosure

Im just curious since there are several great coaxial speakers of old. For instance here:
Tannoy Speakers

Could one put them inbass reflex, horn enclosures,or or is there something in the Silver Iris construction the prohibits it?

Sterling Silver Iris OB 15" Coaxial Unit
Driver: 15-inch premium full-range coaxial driver with heavy gauge cast basket
Voice Coil: 2-inch
Power Handling: 150 watts RMS
Impedance: 8 Ohms
System Sensitivity: 97.3 dB/W/m
Qt: 0.70
XMax: 3.45mm
Fs: 35.9Hz
Magnet weight: 38ounces
Frequency range: 36Hz to 21kHz
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Old 29th August 2010, 03:21 PM   #2
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Technically yes, but with the relatively high Q & likely highish Vas it'd be a hell of a size (in terms of what most people consider large these days).
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Old 29th August 2010, 03:57 PM   #3
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Vas is 243,9 liters. which would be a box of for instance 50x70x70 cm
An aperiodic box might reduce the size a bit.

Here are all the data on the woofer section:

Woofer Specifications: • 15" full-range coaxial • Ideal for full-range, near field and monitoring applications in open baffle configuration • Heavy gauge pressed steel basket • 2" voice coil • Power handling: 150 watts RMS • Impedance: 8 Ohms • System Sensitivity: 95.8 dB 1w/1m • Le: 0.70 • Re: 5.77 Ohms • Qt: 0.91 • Vas: 243.9 liters • Xmax: 3.45mm • Fs: 41.8Hz • Magnet weight: 38ounces • Frequency range: 41.8-18k • Crossover network included • Cut out 13.75" • OD 15.25" 1" throat compression driver

Last edited by trondareo; 29th August 2010 at 04:11 PM. Reason: added data
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Old 29th August 2010, 05:25 PM   #4
sreten is offline sreten  United Kingdom
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Hi, its designed for open baffle, get something else for enclosures, rgds, sreten.
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Old 29th August 2010, 05:32 PM   #5
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Agreed.

That's the Silver Iris (which will need an even bigger box); the previous mentioned is the Sterling Silver Iris -note the different Qt for each. Note that the information supplied by Hawthorn is still incomplete.

Whatever way you look at it, it's going to be a big box.
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Old 29th August 2010, 09:24 PM   #6
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Quote:
Originally Posted by sreten View Post
Hi, its designed for open baffle........
or TL.

GM
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Old 29th August 2010, 09:43 PM   #7
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something like this?
tannoy9
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Old 29th August 2010, 11:00 PM   #8
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Same basic concept, i.e. damped folded pipe, though using different math.

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Old 29th August 2010, 11:21 PM   #9
freddi is offline freddi  United States
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I have the standard Silver Iris and even small wings make them more claustrophobic sounding than a simple baffle - - go open baffle
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Old 29th August 2010, 11:27 PM   #10
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Or buy something else and avoid regretting the purchase like I did. They sound like $%!#, regardless of box or baffle.
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