Question about Kenwood KAC-959 Car Audio Amplifier

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No Sound out of my speakers

I have my apm connected to 2 bridged 10'' speakers. The power light goes on but no sound is commin out of my speaker. I have played around with the spreaker wires and connections to see if i get sound that way, but no use. Although the spreakers do seem to move slowly back and forth.I am also unsure if the light is supouse to be flashing. I tried cheaking manuels on line but didnt find anything on whether the power light should just stay turned on or be flashing. I'm pretty sure i have all the wireing done right in the front of the car. Does anyone have any suggestions on how to fix these problem?.

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The last Kenwood that I had witnessed with a flashing power light was defective. It also caused the subwoofers to move slowly back and forth. More than likely, you have an internal issue with the amp. Call Kenwood, and see how much they would charge to have you send the amp in for repair. Or pick up a new amp.

Posted on May 11, 2008

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I have Boss ar2400 4 channel amplifire.. I had connect two 15" kicker subs in bridge circuit. When i run the system it gets overheat in half an hour and goes into the protection mode. How can i solve this...


Problem is one of four things:
  • Impedance (ohm resistance) of the speakers you are using is below the amplifier's rating for operating in bridge mode;
  • You are driving the speakers at a volume exceeding the maximum power output of the amplifier;
  • The gauge of the wires you are using to connect the amplifier to the speakers is too small;
  • The gauge of the power supply wires is too small, and/or you are not using a large enough reserve capacitor at the power input
Possible solutions:
  1. If your Kicker subs are rated at 4 Ohms, and you are using them in monoblock configuration with the speakers wired in parallel (all + terminals to the + bridge output and all - terminals to the - bridge output), try either configuring your bridge circuit in a paired bridge, where a pair of amplifier outputs are bridged, each bridged pair driving a single speaker; or if your Kicker subs are rated at 2 Ohms, use a monoblock bridge driving the speakers in series (+ bridge output to + of one speaker, - of that speaker connected to the + of the other speaker, and = of that speaker connected to - of the bridge output);
  2. Turn the amplifier output down (but this is likely NOT the issue)
  3. Use speaker wire that is no smaller than 8 gauge for your application. 4 or 2 gauge wire would be slightly better but not worth the additional expense;
  4. Your power supply wire should be equal in size or larger than your speaker connector wire. Use no smaller than 8 gauge for your application. Also, use a capacitor no smaller than 2 Farads wired across the power supply input to the amplifier to compensate for pulse surges and car power dips. For your application a large capacitor will work better than an auxiliary battery or gel cell.

May 26, 2014 | Car Audio & Video

2 Answers

PYLE PT2001X 3300 Watt Professional DJ Power.just had question about running this amp in bridged mode 4 ohms, here's some amp info 3300 watts total power bridged in 1 ch only.1650 each ch in stereo mode...


Hi,

In bridge mode the minimum load will be 8 Ohm.
If you are using 4 Ohm speakers, it will mean you will give each side of the amplifier a 2 Ohm load.
Thats to much for this model.

Kind regards,
Gerard

May 13, 2010 | Pyle PT-2000 Amplifier

1 Answer

I have 2 12'' subs 1300.watts and 2 1200watts amps both bridge to push 2400.00watts do not sound lond enoungh


impedance mismatch cud be the culprit. make sure ur speakers are the right ohms for ur amp. most amps are designed to operate on a 4 ohms speaker load on bridge mode. some amps are never designed for bridge mode. so if u bridge these amps u will get less output. u have to be very careful when u make the connections. plus when u bridge two amps for 4 ohms load, the total impedance becomes 8 ohms. make sure ur speakers are 8 ohms. few ohms can make big difference on power amps.

Apr 07, 2010 | Sony Xplod 1200W Class AB Bridgeable 2-Ch....

1 Answer

The linksys utility always sends signal to PC speakers, even when wmb54g unit shows connected. The wmb54g and router are up-to-date and run WEP 128 security encoding. The wmb54g flashes faster when...


I can disable the sound card, set the music bridge as the default sound output device and it works just fine (after rebooting). But if I enable the sound card again, even when keeping the music bridge as the default, the sound goes exclusively to the PC speakers, no matter what device the connection is switched to on the Linksys utility. (By the way the music bridge shows correctly to be connected or disconnected....with no effect on the sound output.) The major hassle is that any usable change of output device requires a reboot. Still testing. Not a single answer from the community. Also I never required the promised temporary password.

Dec 25, 2009 | Linksys WRLS BRIDGE |WMB54G MUSIC R

1 Answer

Is there a wiring diagram for the nikkai EAPA450 Amp


Hi, if you still need a photocopy of instructions email me mail@srands.co.uk

If you want instructions in brief this involves POWER CONNECTIONS, PHONO LEAD & SPEAKER CONNECTIONS:

POWER (At the same time when routing these wires, I would connect the PHONO LEADS from the car cd player to the amp, if your car cd player only has 1 preout (1red & 1 white) then you will need two phono splitters, a female to 2 males. Phono leads carry the unamplified sound from cd player to the amp):
~ Permanent 12V+ (Thick lead that is fused direct from battery all the way to the amp, wire must be 20a to 30a +, hence 1cm diameter wire, known as AWG8, Maplin sell cheaper kits then most)
~ Amp REMOTE (A thin insulated cable (5a is OK) from car cd player amp remote wire, this turns the amp on when the cd player is on, if your car doesn't have an amp remote wire, suggest nearest ignition supply or seperate switch that you turn on when you want to turn on the amp)
~ GrouND 12V- (Insulated lead (20a to 30a) to nearest part of unpainted car chassis such as interior panel screw hole, instead of an insulated cable all the way from the batery, this is common practise.

SPEAKER:
Each speaker has a - negative & + positive, these must connected correctly. The amp has 4 channel, 2 channel labeled as front, 2 channels labeled as rear. Using speaker wire, connect cable from amp to speakers. Note: Ensure the speakers being connected only receive sound from the amp (Not cd player as well, as would damage players or at the very least impair sound)
The amp has a feature called bridgeable this means a sub 8" or 10" sub can be powered by 'bridging' two channels. For example there are 2 ways to bridge power a Sub on the NIKKAI EAPA450:
i) Sub speaker wire positive + to channel RL and Sub speaker wire negative - to channel RR.
OR
ii) Sub speaker wire positive + to channel FL and Sub speaker wire negative - to channel FR.

Switches:
~ Bass boost, meant to be on for a channel if using sub, otherwise off.
~ X-over mode adjust hi/lo frequencies, only work if both x-over switches are on! Then adjust switch frequency knob, until it sounds right.
~ Gain (Volume knob) adjust volume knob up or down, until it sounds right!

NOTE:
You will need patience! many hand tools and parts such as: Wiring kit, fuse holder 20a/30a, Phono leads, speaker cable, Fork/ring connectors, wire strippers, wire cutters, set of screw drivers, also ueful to have zip ties to tdy excess cable and 'P' cable clips to tidy speaker wire to shelf, etc.

OK

Any more questions just email me mail@srands.co.uk

Dec 01, 2009 | Car Audio & Video

1 Answer

I have a phonic powerpod 7. the speaker connections are A & B main 1 & the same main 2 in the middle there is 1 1/4 jack socket that says bridge. it says dont connect any speakers to a or b when...


In bridge mode, the left and right amplifiers are in essence connected together. Typically, the speaker connections are to the positive connectors for each channel for this mode. WIth the speakers still connected, you essentially shorted the outputs to ground and smoked the output section. The unit will detect this now and not turn on the output section. Your unit is in what is usually called "protect" mode. This unit will require repair. Expect to have the output transistors replaced at the very least. I would estimate around $16-$40 for parts.

Dan

Jul 01, 2009 | Audio Players & Recorders

1 Answer

Speakers won't play ''loud at all '' Just Very faint


they dont sound loud because you need to use the DUAL voice coils and make it 2 Ohms. Google " how to bridge a dual voice coil sub"

May 25, 2009 | Infinity Reference 1052W Subwoofer - 10"...

1 Answer

Sound


Hi monmax,
I hope you are aware that in bridged mode your amp will become monaural (single channel, double power). If you still wish to bridge it:
Switch of power.
Set mode switch behind amp to "bridge" position.
Connect speaker positive to CH1+ve terminal of amp output and connect speaker negative to CH2 +ve terminal.
Be aware that now, in bridged mode your amps output power delivery is 1100 watts for a 4 ohm speaker and 900 watts for an 8 ohm speaker. Make sure your speaker can handle that.
Peace
Jango.

Mar 03, 2008 | Crown CE1000 2-Channel Amplifier

3 Answers

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.

May 11, 2007 | Koiiler XM-7676W Car Audio Amplifier

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