Question about Kenwood KAC-859 Car Audio Amplifier

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KAC-859 one cha plnnel goes off

I Have one of this amplifiers, the problem is, i'm listening to music, and then suddenly one channel starts to crisp and making noises like static, then the channel goes off... If i increase the volume enough(at stereo level 20 out of 30) the channel gets on again and sounds normally, till sometime the channel goes off again. If when the channel goes off, i increase the volume a little bit but not enough, the channel sounds like the music but with very much static and irregular noise. It wont stop... what could it be?

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  • Wayne Bayley May 11, 2010

    Are you using this amplifier in a system that contains woofers? If so do you have the amplifier mounted or fastened onto the woofer box or in the vacinity of the woofer enclosure?

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6 Suggested Answers

SOURCE: Amp turns on then starts making subs go erratic with almost sounds like line nosie

hi i had the same problem people suggest checking ground thats where you start at then if it aint ground for sure, the make sure you have good rca cables. If there good this is what happen to me i had a cheap ole pioneer 70 doller cd player the actual rc jacks from that cd player was making and horrible sound travel through my speakers im talking humming whinning everything im positive that this will solve your problem email me at maggotman927@hotmail.com and let me no something if i helped or if ya need more help

Posted on Jun 30, 2007

Shuttle83
  • 1139 Answers

SOURCE: power of amplifier

If the KAC-7252 is to be bridged, the operation mode switch on the top of the amp is set to mono. When switched to Mono, the signal from the left channel input only is used. Bridging creates 4 times as much power so the KAC-7252 delivers 170 Watts per channel so that 340 watts total so that value 340 is multiplied by 4 and that gives you 1360 watts of power. so it will drive them.

Posted on Sep 10, 2007

geo_tech486
  • 27 Answers

SOURCE: Amp light turning off and on

if you see that happen you might need to your i c sound chip or your trasistor change then and check

Posted on Dec 11, 2008

  • 14 Answers

SOURCE: kac-ps201t problem

I had a similar problem with a KAC-X812D Kenwood amplifier.
My problem turned out to be that the RCA inputs were so sensitive, they picked up interference from my head unit through the RCAs.
I replaced the head unit with a newer model, and had no problems after.

This may not be your case, but hope it helps.

Posted on Dec 17, 2008

yungdub
  • 93 Answers

SOURCE: When I the radio on the light flash on and off on

When That Happens It Means Something Is Usually Hooked Up Wrong

Posted on Jun 14, 2009

97F350diesel
  • 1326 Answers

SOURCE: I have a kenwood kac-8452 4 channel amp that makes

Its not pulsing, its called clipping. The sound is being clipped due the amp being pushed past is power capacity and distorting the signal. This will damage your speakers very quickly. No amp should be turned more then 3/4 up. If its not loud enough you need to purchase a larger amp or be comfortable with the wattage it produces at 3/4 volume. You may also have speaker wires touching/crossed causing th issue.

Posted on Sep 14, 2009

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1 Answer

How many watts dose a kenwood kac-859 have


80 Watts x 4 + 240 Watts x 1 It all depends on how you have it hooked up. Let me know if you need additional information on this.
Thanks

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In protection mode do you mean the light comes on and it plays music and stuff? If that's the case, that's what the amp is supposed to do. Protect itself from a power surge

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http://www.kenwoodusa.com/UserFiles/File/Global/Consumer/Manuals/kac528.pdf

Page 7 of the manual gives you all the different configurations of this amp, and it's MAX power. FYI; Kenwood rates their amps at MAX power, not clean. Hope this helps.

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Plusin sound


You have what is known as a ground loop! you can purchase a ground loop isolator or re-route your RCA jacks away from any power leads, I would try re-route first but if problem persists purchase a ground loop isolator or new wiring at wholesale prices at
www.godspeedaudioheaven.com

Feb 03, 2009 | Kenwood KAC-859 Car Audio Amplifier

1 Answer

Kac-ps201t problem


I had a similar problem with a KAC-X812D Kenwood amplifier.
My problem turned out to be that the RCA inputs were so sensitive, they picked up interference from my head unit through the RCAs.
I replaced the head unit with a newer model, and had no problems after.

This may not be your case, but hope it helps.

Dec 15, 2008 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Amp light turning off and on


if you see that happen you might need to your i c sound chip or your trasistor change then and check

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Kenwood amp kac-x401m


How long will the bass play before the amp kicks into protection mode and how loud are you listening to it? I've noticed with my amps that if they don't have enough air flow they will get hot and kick into protection mode. They will also kick into protection mode if you are running it at more than it can handle. Check your adjustments on both your amp and the head unit. Make sure you are not running more bass than the amp can handle.

Nov 04, 2008 | Kenwood KAC-9152D Car Audio Amplifier

1 Answer

Power of amplifier


If the KAC-7252 is to be bridged, the operation mode switch on the top of the amp is set to mono. When switched to Mono, the signal from the left channel input only is used. Bridging creates 4 times as much power so the KAC-7252 delivers 170 Watts per channel so that 340 watts total so that value 340 is multiplied by 4 and that gives you 1360 watts of power. so it will drive them.

Aug 27, 2007 | Kenwood KAC-7252 Car Audio Amplifier

2 Answers

Kenwood kac 859 amp


hi, note that if you are not using the proper gauge b+ and gnd cable with this amp then the current available at the amp wont be sufficint to keep amp on. also try using this amp while vehicle is idling. if this doesnt work then disconnect all spks from amp and check if red lite stops flashing. if it doesnt stop flashing then amp has internal fault. if lite stays on brite then proceed to check each spk load impedance, then reconnect each spk individually. the minute red lite starts flashing it will give you a clue that the channel or spk load is faulty. cheers

Jul 27, 2007 | Kenwood KAC-859 Car Audio Amplifier

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