pyle 15" subwoofer model PLWB158 - diyAudio
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Old 10th July 2012, 04:28 AM   #1
zuki is offline zuki  United States
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Default pyle 15" subwoofer model PLWB158

i tested one of these drivers
BRAND NEW RIGHT OUT OF THE BOX
with a parts express dayton wt3 woofer tester

the results i have are.



31.63 HZ.

7.481 ohms

QTS 1.289

QES 1.783

LE 2.073

MMS 99.14 GRAMS

VAS 7.939 CF

SPL 87.9

--------------------------------

OWNERS MANUAL LISTED SPECS

Fs:20, Qms:5.0, Qes:0.91, Qts:0.70, Vas (Cu ft)5.100

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Old 10th July 2012, 06:26 AM   #2
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Well it is Pyle probably been sitting in a pile for quite a while. Cone probably drifted causing the qts shift. Or it could be the same ol' s$#% from them...buncha bogus specs. I have visions of a room of semi- trained monkeys in Pyle's spec dept. Typing this drivel out.
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Old 10th July 2012, 07:24 AM   #3
mdocod is offline mdocod  United States
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Wow, good job pyle. Qes 1.8? Yoikes. Sometimes I get the feeling like the (I believe incorrect) use of the word "quality" as a way to describe or define what "Q" is in speaker specifications, may have been misinterpreted by the monkeys at places like Pyle and Pyramid.

Last edited by mdocod; 10th July 2012 at 07:28 AM.
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Old 10th July 2012, 07:42 PM   #4
CCU is offline CCU  Denmark
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You have to burn it in before testing
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Old 10th July 2012, 11:34 PM   #5
zuki is offline zuki  United States
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is there a reasonable size box that this can work in ?
besides free air
i will do some break-in stuff over next few days and retest it.
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Old 11th July 2012, 12:28 AM   #6
sreten is offline sreten  United Kingdom
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Hi,

When you get a driver with higher Fs and Vas than the claimed specs
things look very fishy as that implies a change in cone mass, i.e.
30Hz and 8cuft versus 20Hz and 5cuft imply for the same driver
area very different cone masses, the numbers simply don't add up.

Try checking the numbers with driver definition in WinIsdPro.

rgds, sreten.
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Old 11th July 2012, 03:30 AM   #7
zuki is offline zuki  United States
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the driver is brand new . never used.
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Old 11th July 2012, 05:09 AM   #8
GM is offline GM  United States
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What are the rest of the measured specs?

GM
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Old 11th July 2012, 05:31 AM   #9
zuki is offline zuki  United States
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the specs the software gives me i posted.

the specs that came with the manual are posted too.
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Old 11th July 2012, 05:37 AM   #10
GM is offline GM  United States
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Hmm, other folks using this rig also list Sd, Cms, Qms plus some others, so wonder why it's not giving you all this too...........

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