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Old 24th January 2013, 12:05 PM   #1
jaya000 is offline jaya000  India
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Default mid speaker watts?

For tweeter PA-D44 Paudio spec sheet say 30W@ 1 khz, 50W@ 2 khz.

Can this be applied to midrange speakers?

The speaker Fs is 55hz and manufacturer claim that it is rated for 300 Watts.

If i use it in sealed box & Fs (with hp filter) as 150 hz, will the power handling change?
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Old 24th January 2013, 01:27 PM   #2
JMFahey is offline JMFahey  Argentina
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1) Post the midrange specs and model, otherwise it's a guessing game.
2) how will you drive it? (Active/passive).
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Old 24th January 2013, 04:15 PM   #3
mhtplsh is offline mhtplsh  India
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Quote:
Originally Posted by JMFahey View Post
1) Post the midrange specs and model, otherwise it's a guessing game.

2) how will you drive it? (Active/passive).
Ans :
Specifications :
Nominal Diameter : 12 (320 mm)
Impedance : 8 Ohm
Voice Coil Size : 75mm(3")
Frame : Aluminium
Magnet Size : 190 mm
Power Capacity : 300 W RMS
Voice Coil Former : Kapton
Voice Coil Material : Copper

Fs : 55.2197 Hz
RE : 5.6 ohm
QES : 0.3809
QTS : 0.3606
SPL : 98.54
MMS : 49.399 g
VAS : 76.977
B/L : 16.573

2) Driving the driver with passive network
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Old 24th January 2013, 05:16 PM   #4
JMFahey is offline JMFahey  Argentina
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Good you posted specs.
Otherwise I would have expected a 4" midrange with a 25mm VC and a small magnet.
Yes, given VC and motor size it may very well stand 300W RMS.
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Old 25th January 2013, 06:48 AM   #5
jaya000 is offline jaya000  India
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Thanks JMFahey,
I want to know something different.
If we increase the low end cutoff to 250hz, then can we use for more power? say 450W.
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Old 25th January 2013, 08:03 AM   #6
JMFahey is offline JMFahey  Argentina
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Yes, but given what you'll need for a 300W 250 Hz passive crossover, it pays to go one extra step and biamplify.
Use the 450W for your woofer and add a 100 to 200W for your midrange.
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