20 Most Recent Jensen 100W x 4 Amplifier KA5 Car Audio Amplifier Questions & Answers


Will the jensen a4000 run subwoofers

Its ought to. Thats what it was really marketed toward with the 2 channels bridged somehow and then put to individual subs in tandem. However, there is no built in crossover. This is a twenty year old amplifier and popular demand had not made it such that built in active crossovers came standard. In that sense its not a great choice for subs. My brother got one and it sounded like a## because he never bothered to add a crossover. Class a/b amps are sooper cheap right now. If moneys no object get a "2000w" amp for about 80 bucks on amazon or whatnot.
5/22/2016 4:46:12 AM • Jensen 100W x 4... • Answered on May 22, 2016

Installing a jensen ka 5

try http://www.jensenmobile.com/amplifiers/Although I do not see the one you describe
4/6/2013 8:30:24 PM • Jensen 100W x 4... • Answered on Apr 06, 2013

I need a vrcd400-sdu modular plug diagram

I had to rewire my whole thing but i got all my wires right.
NOTE:this is if you are looking directly at back of the unit

x fl rl rr fr x R Y RCA-in sub-out Antenna
O O O O O O O O + O-white O-white O
x fl rl rr fr x B
O O O O O O O O - O-red O-red

X= not used
+= positive wires
-= negative wires
fl= front left speaker
rl=rear lrft speaker
rr= rear right speaker
fr= front right speaker
R= red power (ignition) wire
Y= 12v memory
B= chassis ground

im pretty sure thats about it if your having trouble reading this email me at [email protected] im more than glad to help cause i know how it is trying to figure all this stuff out .

11/22/2012 9:11:33 AM • Jensen 100W x 4... • Answered on Nov 22, 2012

Bluesky bcr716

baga alt sd card cred ca nu citeste sd-hc card
8/19/2012 12:13:32 PM • Jensen 100W x 4... • Answered on Aug 19, 2012

Vrcd400-sdu error code 13

does your usb device use batteries,some device require.
7/9/2012 1:51:08 PM • Jensen 100W x 4... • Answered on Jul 09, 2012

The protect light is coming

This is a sign that the subwoofers are wired at at ohm level that the amp can't handle, check on the amp to see at what ohm it is stable...this site will help..
8/22/2011 12:18:46 PM • Jensen 100W x 4... • Answered on Aug 22, 2011

How do i bridge my

left + and the right - that should bridge it
2/27/2011 5:16:40 AM • Jensen 100W x 4... • Answered on Feb 27, 2011

Installed sony cdx-gt280 in car, everything works

When you run a CD the radio needs more current then when you are using only the tuner.

Check that the positive power cable is connected properly and thick enough. Do the same with the ground... I have had this when the ground cable is not connected properly or too thin.

Try grounding it straight to the battery or body with a thicker cable
12/1/2010 10:21:57 PM • Jensen 100W x 4... • Answered on Dec 01, 2010

Which wires are which,i know

The yellow wire is constant power or battery and the blue wire is your remote...
11/22/2010 6:53:33 PM • Jensen 100W x 4... • Answered on Nov 22, 2010

R556 resistor needs replaces need to know where i

The only way I know how to is to send it in and have them fix it. I am in the same boat with my kicker amp. They wont sell the parts by them selves. If they did that they could not charge you a ton of money. Or if you can find someone with the same amp and that is willing to give you the part.
3/14/2010 10:31:27 PM • Jensen 100W x 4... • Answered on Mar 14, 2010

I need de connection plug in the back, i do not

if the amplifier have FUSE just measure with a multimeter
FUSE > terminal so u be able to find B+ terminal .other must be ground by default small one remote !
11/9/2009 1:43:58 AM • Jensen 100W x 4... • Answered on Nov 09, 2009

Unit dead, no power up, no power light on

you probaly blew somthing inside the amp and you might have to saughter it bakc or get a new amp
10/30/2009 12:13:17 PM • Jensen 100W x 4... • Answered on Oct 30, 2009

Where can i get the hi-input plug jensen 600w

You will have to call Jensen. They normally don't come with amps anymore as most users prefer the RCA input for better clarity and sound quality.
9/7/2009 2:16:06 PM • Jensen 100W x 4... • Answered on Sep 07, 2009

Vrcd400-sdu car stereo

email the maker of the unit and ask for one
7/30/2009 2:06:37 AM • Jensen 100W x 4... • Answered on Jul 30, 2009

Protection light comming on.

I'd be inclined to check to make sure there isn't a short circuit somewhere in the output lines. Maybe a wire is crushed against the car's body or bare wires touching or badly fitted RCA plugs. All of these things could activate the protection circuit. If you have a multimeter it would make life easier but don't forget your speakers will show up as 4 ohms so that's not a short. BMW
12/1/2008 3:30:25 PM • Jensen 100W x 4... • Answered on Dec 01, 2008

My amp wont work

The amp probably has shorted output transistors. To eliminate other possible causes, read through the following page:

Amp in Protect Mode - Troubleshooting

Let me know if you have any other questions.
11/25/2008 11:58:04 AM • Jensen 100W x 4... • Answered on Nov 25, 2008

Error code 13 on my car stereo

I visited VR-3.com and found the following in the manual: Problem: MP3/WMA Files on the USB/SD flash memory do
not play.
Answer: Flash memory is formatted as NTSC.
Format the flash memory as FAT or FAT32.
The files have Digital Rights Management(DRM).
If the files you are attempting to play were
purchased online, they may have Digital Rights
Management, this unit is not DRM compatible.

You may want to call VR3 at (800) 445-1797 and inquire about that specific code just in case though the answer above was not given as "error 13" I just made an educated guess based on the problem given.
11/7/2008 1:12:15 PM • Jensen 100W x 4... • Answered on Nov 07, 2008

VR 200 Watt amp

Disconnect the wire from the remote turn-on terminal of the amp and insulate it so that is can not make contact with anything.

With the wire disconnected, does the amp remain on?
11/3/2008 7:17:21 AM • Jensen 100W x 4... • Answered on Nov 03, 2008

Car stereo

you have a bad ground try to reinforce the ground or try scrapping a little bit of the paint off so you can get a good ground.
8/16/2008 11:26:57 PM • Jensen 100W x 4... • Answered on Aug 16, 2008
Not finding what you are looking for?
Jensen 100W x 4 Amplifier KA5 Car Audio Amplifier Logo

34 questions posted

Ask a Question

Usually answered in minutes!

Top Jensen Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5067 Answers

The Knight
The Knight

Level 3 Expert

76851 Answers


Level 3 Expert

85242 Answers

Are you a Jensen Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Jensen Car Audio & Video

  • Jensen Car Audio & Video

Most Popular Question

wires know

  • Car Audio & Video