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Old 13th September 2011, 07:52 PM   #1
finski is offline finski  Finland
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Default Audio Pro SUB+ MKII schematic

Hello from Finland. The neighbor country (Sweden) of the make of this nice small Subwoofer. I need schematic diagram for the amplifier. LED is on and all the voltages are OK but no sound.
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Old 14th September 2011, 11:46 AM   #2
finski is offline finski  Finland
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Default Fault found

Reason for this silence was the speaker element. The voice coil was burned out. New driver element costs 100 euros here in Finland. I asked the factory but they don't give any specs because the element was designed for them.

Does anybody have the specs or something? Even the smallest fraction helps. Like impedance and Fs(Hz).
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Old 14th September 2011, 10:37 PM   #3
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You could do a bit of cutting on the burned driver to find the VC depth, winding length / gauge, etc.
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Old 15th September 2011, 12:48 AM   #4
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Quote:
Originally Posted by finski View Post
Reason for this silence was the speaker element. The voice coil was burned out. New driver element costs 100 euros here in Finland.
You may want to check whether there's any DC out of the amplifier first.
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Old 15th September 2011, 02:54 AM   #5
johnr66 is offline johnr66  United States
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What is the volume of the cab? Ported, sealed or ?? It would be easier just to run some T/S parameters through some modeling software like WinISD to find a good match for the cab.
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Old 15th September 2011, 06:11 AM   #6
finski is offline finski  Finland
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Well, because this is Ace-Bass -system, I believe that it isn't that easy to find the perfect match. The amplifier has been designed using the parameters of the driver. But a good idea anyway, thanx!
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