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Jensen SPX-17 has power and the blue light goes on but the sound level and base power is only about 10% performance level even after configuring the sound level on my new amp/receiver to a full +10. I

Jensen SPX-17 has power and the blue light goes on but the sound level and base power is only about 10% performance level even after configuring the sound level on my new amp/receiver to a full +10. I took the power board off and reattached another SPX-17's power board and everything was okay; so the problem is inside the power board box which I took apart to make sure all the wires were attached to their terminals and they were. What's the problem please. Gary

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  • Jensen Master
  • 636 Answers

What made you determine that it was at 10%?

Posted on Nov 24, 2014

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

Duncan
  • 218 Answers

SOURCE: Need help in wiring speakers to amp.

The right speaker will connect to the R+ and R- terminals and the left speaker will connect to the L+ and L- terminals. Only one speaker per connection. If both speakers are not exactly the same brand, part number,size, etc. then they may NOT sound the same. Be sure to watch the polarity of the speakers so they don't interfere with each other. I.E. speaker + to amp + etc. Good luck.

Posted on May 11, 2007

KaeZoo
  • 156 Answers

SOURCE: How should I wire up this amp and sub

The amp's not actually a very good match for the sub, since the sub can be wired for 2 ohms or 8 ohms, and the amplifier is most efficient at 4 ohms in bridged mode. My advice would be to wire the amp in bridged mode, and wire the sub for an 8 ohm load. To do this, the amp's (+) wire should go to the (+) terminal on one of the sub's voice coils. Then run a wire from the (-) terminal on the OTHER voice coil to the (-) terminal on the amp. The remaining (+) and (-) terminals (on opposite voice coils) should be connected to each other with a wire. Your original wiring setup had the amplifier connected to only one voice coil, while the other voice coil was shorted.

Posted on Jun 10, 2007

Vulfen
  • 5 Answers

SOURCE: Jensen LXA400

I have this same amplifier. I have noticed several ways it will "not work" during my ownership of it. I have it connected to a seperate battery to save my alternator, battery, etc as it is a power hungry beast for how low the output wattage is. Test the input voltage to see if you have enough, one way to see this is to check the "jensen" emblem that lights up. If you dont have enough power it will appear dim and only the right side lights up. Also the amplifier will not work if your speakers are "blown" even a little bit. Ive taken speakers that wont work on my lxa400 and connected them to a higher power amp and they will work (although they will sound horrible) If youre smart you will keep the gain under 3/4 on this amp, I see some people have found out the hard way that full gain fries the amplifier circuitry. Not an expert on electronics but it smells somewhat like melting glue or plastic. Ive noticed a lot of people have problems with the RCA jacks as well. There are 8 jacks, in two clusters. The first one is A+B and the second is C+D. Note: You do not NEED Y connectors on this amp! Connect your output rcas from the deck to top left and bottom left jacks of the left cluster. This will give you left and right (a+b) output from the first set of speaker outs. Then connect an rca patch cord from the top right and bottom right jacks of the first cluster and connect the other end to the top left and bottom left of the second cluster. This will give you output from the second set of speaker outs. Remember that this is in 4 channel mode. I dont remember the set ups for 3 channel but two channel I believe is the left deck rca goes to top left of the first cluster and the right deck rca goes to the top left of the second cluster. Then you just wire the speaker outs according to the picture on the amplifier. something like this: _________________________ |(+) - (-) +| ~~~~~~~~~~~~~~~~~~~~~~~~~ Speaker + goes to (+) and speaker - goes to (-) Also addressing another issue if you want to increase the wattage to your speakers you just use a lower resistance speaker (2ohm instead of 4) I would not recommend using anything over 4 ohms. As for the high level inputs, I dont recommend using them unless you have the plugs that go with them, its a lot easier to wire your deck rears to a line converter (changes straight speaker wire to RCA jacks) or to just buy a new deck with RCA outs. Last item, common knowledge: 400 watts does NOT mean 400 watts!!! This amplifier puts out very little actual wattage (50 or 83 per channel depending on the load) Hope all this helps someone out there.. Anyone who knows the 3 channel setups I would appreciate it.

Posted on Jul 15, 2007

  • 113 Answers

SOURCE: Amp will not turn off and the Remote wire is correct.

check pwm chip ,may need replacing

Posted on Aug 22, 2007

  • 2 Answers

SOURCE: Please help.... I need a wiring diagram or pinout for my Jensen xa1120 amp, thanks

xa 1120 amp pin out 123
456



1 left neg
2 ground to radio
3 left positive
4 right neg
5 blank-not used
6 right positive


Posted on Oct 10, 2008

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1 Answer

Why is my Jensen SPX-17 home entertainment subwoofer only putting out about 10% functioning base power volume level and loudness?


Gary, If you have the subwoofer open, what did you keep from measuring the voltage of both power supplies? And while measuring, why not put a load on both, and see what current they can handle?
When the error moves with one component (power supply) the error must be there. Without a multimeter, (I have several, but I'm not close to the power supplies) you can't tell if the power supply is working to full performance. So start there.
Just try to find out, if a part of the rectifier is defect (one diode) It won't be possible to point out what is wrong, if you can't measure on the device yourself.
Sorry.

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1 Answer

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Hi.

The Jensen XS-1010 is a 450-Watt 10" (450W peak, 150W RMS ) Subwoofer.

Below the full technical specifications:

Tech Specs

Product Type - Car subwoofer driver

Dimensions (WxDxH) / Weight - Car subwoofer driver : 4.7 in Diameter 10.1 in

Dimensions - Diameter - 10.1 in

Enclosure Color - Blue

Localization - English

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Max (RMS) Output Power - 450 Watt

Response Bandwidth - 24 - 1000 Hz

Input Impedance - 4 Ohm

Output Level (SPL) - 88 dB

Connectivity Technology - Wired

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Diameter - 9 in

Depth - 4.4 in

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1 Answer

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all the spx17 will do that, no it should not damage the driver.

We usually suggest to customers that it is best to leave the Sub in the Auto switch position as this will allow it to automatically switch on and off without the loud pop.

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if the jensen has a blue or a blue/white wire, connect it to one of those. if not, you can always connect it to the red ACC wire. that should solve your reception problem..

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