Question about Yamaha AX-596 Amplifier
I am running a DJ's mixing board with a CD player and Ipod connected to it through the aux input on my AX-596. The speaker A wires go into a Niles SVL-4 speaker selector and out to 4 pair of 8 ohm 100 watt rated speakers. The amp has begun switching into the standby mode after playing for 45 minutes(roughly) and more frequently after that. Is the amp overheating? Is it posible to run the mixing board through this amp? I am carefully not to push the mixing board into the red.
Get the top off and identify the 2 main huge filter capacitors, 1 at the end of each heat sink.. At the base of each u will see a 47 K Ohm resistor covered in white glue extending from the cap to over the resistor's body.The resistors are numbered R141 and R142 for left and right channel respectively. Cut and strip away all the glue spilt on the resistors. For added measure replace the two 47 K Ohm resistors.
Crank up the volume and enjoy!!!
For pics illustrating the afflicted region check out my Facebook page ;
Posted on Apr 14, 2013
Can you tell me a but more about the circumstance you are using the Yamaha.
The speaker switch you are using also has a strict rating of 100wrms Driving it with the 145 wrms of the ax596 may damage the switcher. You also should have the protection circuitry of the Niles engaged to when using the configuration of the speakers you have.
If you are operating the amp at high levels into the speaker system(whether the mixer is red lining or not), balanced out by the SLV4 to 4 ohms, it may well be suffering from overheating, or has developed dry solder joints associated with running hot that is causing it to go into protection mode. Any amp has to work alot harder to drive a 4 ohm load, and with multiple speakers and impedance correction circuitry will be presenting a rather complex load to boot.
If you are using it in a commercial situation and running at higher output levels for extended periods, you may be better to upgrade it to a fan cooled PA style power amp that is engineered to operate under these conditions. Domestic HiFi is not built to cope with long standing high power operation and may well fail prematurely
If it is over heating, you may be able to overcome this by moving more air about the yamaha and reducing the power level you are running the system at. Happy to talk further with you about this. Let me know how you get on :) Cheers
Posted on Oct 22, 2008
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Posted on Jan 02, 2017
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