Teaser from WinIsd
My WinIsd was downloaded several years ago and I never updated so I was lucky to find the Radian 5212 driver specs and I copied them down to we can compare to when I test for real-world T/S parameters.
Qts .56
Vas 2.84'
Fs 51.2 hz
Re 6.4 ohms
Le .9 mH
Xmax 2.1 mm
Z 8 ohms
Qms 15.6
Qes .59
SPL 94.5 db
Pe 200 W
BL 13.54
dia 10.5"
Sd 86.70"
Regards, Ron
My WinIsd was downloaded several years ago and I never updated so I was lucky to find the Radian 5212 driver specs and I copied them down to we can compare to when I test for real-world T/S parameters.
Qts .56
Vas 2.84'
Fs 51.2 hz
Re 6.4 ohms
Le .9 mH
Xmax 2.1 mm
Z 8 ohms
Qms 15.6
Qes .59
SPL 94.5 db
Pe 200 W
BL 13.54
dia 10.5"
Sd 86.70"
Regards, Ron
T/S
well guys, i email radian for T/S measurement for the 5212 and this what they send me.
94db
QTS--0.4820
QMS--3.4608
QES--.5668
VAS--3.69
FS--45.1
X-MAX--.035
RE--6.1
SD--82.8
HERE'S THE EMAIL THEY SENT
Tim,
The TS parameters of the 5212 will match the 512/2BK. I have attached a data sheet for you.
We are currently updating all of our TS parameters for our speakers. You will see that the Xmax in particular seems off on the data sheet I sent you. I will have updated parameters for you shortly. Thank you for your patience.
Best regards,
Mark Camarillo
Customer Support
Radian Audio Engineering, Inc.
well guys, i email radian for T/S measurement for the 5212 and this what they send me.
94db
QTS--0.4820
QMS--3.4608
QES--.5668
VAS--3.69
FS--45.1
X-MAX--.035
RE--6.1
SD--82.8
HERE'S THE EMAIL THEY SENT
Tim,
The TS parameters of the 5212 will match the 512/2BK. I have attached a data sheet for you.
We are currently updating all of our TS parameters for our speakers. You will see that the Xmax in particular seems off on the data sheet I sent you. I will have updated parameters for you shortly. Thank you for your patience.
Best regards,
Mark Camarillo
Customer Support
Radian Audio Engineering, Inc.
got on their website and this what i got from the 512/2bk
FREQUENCY RESPONSE 40 Hz - 20 kHz
POWER HANDLING 375 watts AES, 750 watts Program
SENSITIVITY 94 dB
RECOMMENDED CROSSOVER 1250 Hz
IMPEDANCE 8 ohms
VOICE COIL DIAMETER LF 3
DIAPHRAGM MATERIAL 0.002
WOOFER CONE MATERIAL Reinforced Paper
BASKET MATERIAL Stamped Steel
OVERALL DIAMETER 12.25
MOUNTING BOLT CIRCLE 11.75
CUT-OUT DIAMETER 11.25
OVERALL DEPTH 6.5
NORMINAL DISPERSION 90°
QTS 0,482
QMS 3,4608
QES 0,5668
VAS 3.69 (108.02 liters)
FS (Hz) 45,1
XMAX (IN) 0,035
RE (V) 6,1
SD (IN²) 82,08
FREQUENCY RESPONSE 40 Hz - 20 kHz
POWER HANDLING 375 watts AES, 750 watts Program
SENSITIVITY 94 dB
RECOMMENDED CROSSOVER 1250 Hz
IMPEDANCE 8 ohms
VOICE COIL DIAMETER LF 3
DIAPHRAGM MATERIAL 0.002
WOOFER CONE MATERIAL Reinforced Paper
BASKET MATERIAL Stamped Steel
OVERALL DIAMETER 12.25
MOUNTING BOLT CIRCLE 11.75
CUT-OUT DIAMETER 11.25
OVERALL DEPTH 6.5
NORMINAL DISPERSION 90°
QTS 0,482
QMS 3,4608
QES 0,5668
VAS 3.69 (108.02 liters)
FS (Hz) 45,1
XMAX (IN) 0,035
RE (V) 6,1
SD (IN²) 82,08
so here's what i got from woofer tester
Measurements taken on baffle after approx 20 hrs break-in:
driver A driver B
Revc 4.8 ohms 4.8 ohms
Fs 63 Hz 59 Hz
Qes .95 .76
Qms 12.3 10.2
Qts .88 .71
Zmax 68 ohms 69 ohms
Le .92 mH 1 mH
Measurements taken on baffle after approx 20 hrs break-in:
driver A driver B
Revc 4.8 ohms 4.8 ohms
Fs 63 Hz 59 Hz
Qes .95 .76
Qms 12.3 10.2
Qts .88 .71
Zmax 68 ohms 69 ohms
Le .92 mH 1 mH
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Wow, those are very different from the manufacturer's numbers. I don't know what to say about that.