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Jbl gto 606.1 amplifier protect light flashing, replaced 2 blown 20yf 16v resistors/capacitors but still the light is flashing, where else do i look? Craig

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big_300
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SOURCE: my amplifier is flashing back

try disconnecting the speakers, if it still goes into protect, it has fried it's power transistors. If not, try connecting one speaker at a time, untill it starts clipping again, remove the last (problem) speaker connected and remove another one to connect the problem speaker. If it still clips, try connecting it with another set of cables, if it still clips, the speaker is gone. If not, replace the wires of that speakers position in the car. Can you give the specs of the amp and how many speakers you have connected?

Posted on Dec 13, 2010

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It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be your output drivers- the MOSFETS/IC's fitted for both the channels, Use a meter after disconnecting to check for short in the drivers.Now that you have found the damaged components you can change them.

These items can be pruchased from any electronic spares parts shop.

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For maximum performance your amp should be able to provide at or near the same number of watts RMS into the lowest impedance at which the sub can be configured. For example, if your sub is the Power Series Model number P1224, it has dual 4ohm voice coils and can be wired to present either a 2ohm load (parallel) or an 8ohm load (series). You want to wire the voice coils in parallel for the 2ohm load and select an amp that outputs up to 400 watts RMS into 2ohms. The Orion Cobalt CO8001 is just such an amp. If you have one of the GTi Series subs, a better amp would be the JVC Arsenal KS-AR75 which outputs 700 watts into 2ohms.

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Feel free to post any further questions you may have, but please list the make and model number of your amplifier. It would help a lot since not all amplifiers will have the same problems even with the same symptoms. Some types of amplifiers will have certain common failures that others do not.

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