Question about Kenwood KAC-9104D Car Audio Amplifier

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KAC-9104D output terminals

I understand that this is a mono amp and it is simpler to have two (+) and two (-), which is really only one set. But why does the company still have two RCS inputs to the amplifier. This is a confusion. If its a true mono amp, why provide two rca inputs????

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This feature allows the amp to be paired to any stereo. The input may be in stereo but the amp then changes it back into mono using sound from both sides. Hope this answers your question.

Posted on Jul 23, 2009

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1 Answer

How many watts in a Kenwood kac-9104D


Kenwood KAC-9104D

Product Features
  • Mono subwoofer amplifier
  • 500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms)
  • Variable low-pass filter (50-200 Hz at 24 dB per octave)
  • Bass boost (0-18 dB at 40 Hz )
  • Subsonic filter (15/25 Hz, 18 dB/octave )

Jun 29, 2011 | Kenwood Car Audio & Video

1 Answer

How should i have my 4ohm single voice coil JL audio 12in subs connected to my kenwood kac-9104d 1800 watt max power (500x1 @4) amplifier?


On the outputs of the amp there is:

+ + - -
1 2 3 4

terminals. Internally in the amp the positives (1 and 2) are connected together and negatives (3 and 4) together. So there is no difference between hooking up in any of the configurations 13, 14, 23 or 2->4. If its a matter of style, probably use the 14 set, since they're furter apart and harder to short out that way, but electrically it doesn't matter.

Feb 21, 2011 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

I have a Kenwood KAC-9104D that will power on but not produce any sound??


Be sure the RCA cables are attached and in good condition.
Be sure the remote wire from the deck is hooked up and good.
Be sure the GAIN control is turned up.
Volume on head unit is up. Make sure BASS options are not turned off on deck.
Be sure wires are going the right way. + to + & - to -
Loose wires in the box. Make sure subs are hooked to the terminals inside box.
Check all fuses on amp to determine if 1 or more i blown.

Feb 18, 2011 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

My kenwood KAC-9104D only hits when i tap the side of it or tilt it at a weird angle.... what do i do?


i had the same problem with the same amp. it was the internal positive terminal on the amp. the connection was bad. i was an easy fix.

Dec 23, 2010 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

Hookig up two single voice coil subs to a kentwood kac-9104d class d mono amp


connect up the woofers in parallel. Will give you a 2 ohm load.

In other words. Connect both positives together on each sub and both negatives together on each sub. Then connect to amplifier.

Aug 12, 2010 | Car Audio & Video

1 Answer

KAC-9104D Car Audio Amplifier: how to bridge...


Sorry this is a mono amp, you cannot bridge one channel

May 17, 2010 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

I recently purchased a new Kenwood KAC-9104D 1800 amplifier. I hooked it up just as I had with a previous amplifier but it wont power the subwoofers. When one of the RCA cables is plugged in and the other...


You should check and verify first the output signal in the amplifiers by using a multimeter on the db range, this is to identify good output of the amp. After that check the polarities for correct wire orientations.You should connect the speakers one at a time to check.

Jan 16, 2010 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

To bridge a Kenwood KAC-9102D


Hello laurogleal,

The Kenwood KAC-9102D is a mono amp. There is no bridging. Having two sets of terminals is just a more convenient way of connecting two subwoofers. The amp is stable down to 2 ohms impedance, so it is safe to run 2 4 ohm loads in parallel.

Hope this helps.

Apr 28, 2009 | Kenwood KAC-9102D Car Audio Amplifier

2 Answers

KAC-9104D output terminals


ok i have the same amp and 1 2ohm dvc sub and was woundering the same thing but from futher research and askin sum xsperts. What i found out is that it is only one channel and even tho there are 2 (+) and 2(-) they actually connect inside the amp makein it one . so if u wanted to wire sumthing parralel u wouldnt have to hook wires from one coil to the other on the speaker , u can just hook it up to the amp. so basically both +'s and negatives on the amp are actually one within it so all the power if you only use one set of them and if u wanna add more subs its just easier to add to the amp by using the xtras .

Jan 13, 2009 | Kenwood KAC-9104D Car Audio Amplifier

1 Answer

Wiring options for amp


Te dual inputsm are tied together on the output side thus having a "MONO" amp. Most class D anps are stable down to 1 ohm (check your manuel) therefore, 2 2ohm subs are a 1 ohm load. 2 DVC (dual voice coil) 4 Ohm on each voice coil will give each sub a 2 ohm load so 2 dual4 ohm V's will give you a 1 ohm load as well. Parrallel all conections.

What subs do you have? Is this amp 1 ohm ono stable?

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Dec 09, 2008 | Car Audio & Video

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