Question about Kenwood Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: kenwood kac 859 amp
The amp will reset every time it's turned off. The red light flashing, instead of staying constant is a warning that one of the protection circuits are activated. If the amp is bridged wrong, it can do this. If the load impedance is too low, it can also do this... don't trust the speaker, it it says 4-ohm, it may actually be 3.8-ohm, which could cause a problem if two speakers are wired in parallel. If it's not getting enough power, it will turn off briefly, but will turn back on after a second. A capacitor is not necessary with this, just use 4 gauge cable and have a good battery... make sure the ground is good, that one is commonly ignored.
Posted on Aug 21, 2007
Hi, Lost sole, i HOPE YOU FIND IT
Minwhile, when it works to know if you have a cold solder joint, hit the unit on the top or buttom to see if it stop working, mostlikly it will,
To fix this you must unplug the unit open the bottom cover, and solder joint that look broken off, moslity on the output stage or power supply.
What I think happening is when the unit heat's up the joint expand and doesn't do contact no more.
Another problem that this may be is a bad power supply, cap's, this can be check by freezing them to see if the unit starts again.
This is little trick of the trade, I hope this help
What About Bob
Posted on Feb 12, 2008
SOURCE: Kenwood eXcelon KAC-X810D
On the top of the amplifier are 4 controls. The first one is labeled as "input sensitivity". That is the adjustment you need to make. It would need to be set at around mid way between minimum and maximum.
One way for you to set it perfectly for your speaker would be to have it set first at about 1/4th of maximum, and then with the volume of the head unit turned all the way up with some heavy bass playing start to turn the input sensitivity up very slowly until you hear a small amount of distortion or rattling from the sub woofer. At that point you would back it down just a touch until there is no distortion or rattling from the speaker. This would have your amplifier set at a point where it is not pushing the speaker too hard but you would be getting the most from it.
Remember that any time you hear distortion, you are either pushing the speaker too hard or the amp too hard. The distortion is caused by clipping, which is not a good thing. If there is no clipping from the amp, and no abnormal sound from the speaker, you have it set properly to get the most from both the amp and the speaker and you are then minimizing the chance of damaging either the amp or the speaker.
Very wise decision on your part to want to use your equipment properly and not expect more than it is actually capable of. Many people just push their equipment to the max and then complain about how it broke down on them. If you follow my instructions you should be able to keep your sub woofer and amplifier in good working condition for as long as possible. It is no guarantee that it will never break down on you, but you will at least give it it's best chance for longevity.
Posted on Aug 26, 2008
I found the manual & have pasted the url here for you. some things to keep in mind. according to the instruction manual this unit is rated @ 500W, not 1000W. Also to maximize the output you should use 2ohm speakers for stereo applications. Also make sure if you need to extend the power wire, use 10 gauge copper & make sure it's connected to the car battery thru a 60 amp fuse. Also make sure the ground is attached to a clean metal frame or body part by using a bolt & nut not merely a screw. Good luck. If you need additional assistance let me know.
Posted on Jan 06, 2009
SOURCE: amp goes dirctly into protect
ok well it could be two thing wrong your amp dont have a good ground or your amp is a smar amp and your subs must have to be hooked up so the power from the amp cn go to the subs so the amp can see that you do have subs hooked up to take it out of protect o and look at your fuses to to smal or to big will send it to protect to
Posted on May 19, 2009
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