Question about Rosen DSHY1120P11 2011-2012 hyundai sonata in-dash 7 display multi-med

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DSHY1120P11 EXCESSIVE VOLUME

I installed this unit today however, the volume is excessively loud on volume setting 1. I do not have an amplified system and I am not sure why this is happening.

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My amplifier is geetting very hot and shutting off


Hi gordog239,
This symptoms indicated that your sound output IC was already shorted. It heats up while on operation but the heat depends upon the volume and the load speakers(normal operation). If the unit gone to excessive heat even the volume is set to min, this was a clear indication that the fault came from the output IC (mounted in the heat sink. You may confirm it by opening the cover of the unit and touch the heat sink.
Once confirmed that the heat sink gone to excessive heat, replace the output IC and all electrolytic capacitor around this section, this will solve the issue.
Let me know if you need further assistance.
Hope I helped you.
Have a nice day!
Thanks for using Fixya

May 23, 2011 | Car Audio & Video

1 Answer

Mute function on the amp


A couple of questions to try and narrow this down:

1) What is the impedence rating for the speakers?

2) When the unit shuts down, will it recover on its own after a little while or do you need to power cycle it to get it to work again?

3) When the unit shuts down, is it hot?

Possible causes of this behavior:

1) Impedence rating too low causing the amp to work too hard and shutdown.

2) Excessive heat (caused by #1?) will shutdown the unit to prevent damage.

3) Possible intermittant short in the speaker wires somewhere? Loose connection?

A little more investigation will be required to find this. A repair shop would run this unit under load and monitor the outputs for heat and any spikes in the signal that could kick in the protection circuits.

Keep us posted on what you find.

Dan

Jun 07, 2010 | Marantz Audio Players & Recorders

1 Answer

Amplifier cuts off after raising the volume


just a tad is all that it takes to throw it in protect mode so check the gain and the cross over and make sure they are set at a decent level and see if that works a little bit

Mar 30, 2010 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

I have a JM Labs Cobalt SW800 subwoofer connected to a Yamaha RX-V2300. Recently during intense moments, esp action movies, the SW occasionally emits a loud pop; most of the time only one, but sometimes...


What you may be hearing is the speaker's guts bottoming out as it attempts to keep up with the amplifier, which may be clipping - a potential fatal thing to do to any speaker.

Maybe you should turn the volume down or run through the volume setup again and make the subwoofer equal in loudness to the other speakers and avoid excessive bass boost.

Feb 22, 2010 | Jmlab Cobalt SW 800 Speaker

1 Answer

My protection light will keep turning on and off on my kicker zx250.2


THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE AMPLIFIER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION, THEN THE AMPLIFIER WILL NEED TO BE SERVICED, AS YOU HAVE TOTALLY SIMULATED A BENCHED CONDITION THAT IS TOTALLY INDEPENDENT OF YOUR INSTALLATION. MOST TIMES, THE AMPLIFIER WILL GO INTO PROTECTION WHEN IT SEES AN EXCESSIVE LOAD WHEN TURNING UP THE VOLUME, WHICH IS USUALLY CAUSED BY TOO MANY SPEAKERS OR DAMAGED SPEAKERS, BUT IF NO SPEAKERS CONNECTED, THEN IT IS USUALLY BECAUSE THE AMPLIFIER SEES AN EXCESSIVE LOAD OR DC OUTPUT DUE TO ITS OUTPUT SECTION BEING DAMAGED. IN ANY CASE, ONCE REPAIRED, YOU MUST CHECK YOUR SPEAKERS FOR BURNED VOICE-COILS, WHICH WILL IMPOSE AN EXCESSIVE LOAD TO THE AMPLIFIER AND CAN CAUSE IT TO FAIL AGAIN. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Jan 14, 2010 | Kicker ZX250.2 Car Amp

1 Answer

On my Sony Surround Sound tuner, if I raise the volume up to a certain level (not that loud), I get a flashing sign ''protect'' and the sound to the speakers are cut.


Sony has protection in these receivers for two main reasons.

1 - Checking for DC voltages on the outputs to speakers. Not your particular problem.

2 - Excessive current being drawn from receiver on one or more of the speakers.

Number 2 should be your starting point in finding a solution. Put the volume level on Medium - 35 to 40 on the front panel. Now listen to all you speakers in turn. Any scratching noise will indicate a defective speaker. Remove this speaker from the receiver output and check again if the set goes into protection on high volume.

If you could not find any strange noises on the speakers, remove them one by one and test the set on high volume.

Never - attempt to disengage the protection on this amplifier. The only times we have found the amplifier to be defective with this protection error, it has done so no matter the volume level. Therefore I believe your problem to be a speaker or speakers.

Good luck!

Sep 13, 2009 | Sony Audio Players & Recorders

1 Answer

Amplifier displays "CUR"


Hello anwbrown,

The "CUR" display means that the amp is drawing excessive current and the protection circuit is activating. Too low impedance or shorted speakers will cause the amp to draw excessive current.

The Alpine V12 is a Class D mono amp with only one set of speaker outputs. All versions, M301, M501, and M1001 are only stable to 2ohms. Assuming that all 6 of your connected subwoofers and speakers are 4ohm and they're all connected in parallel, the amp sees a .67 ohm load, far below it's rated impedance.

When brand new, the amp could probably operate at low to moderate volume levels without drawing excessive current. But as electronic components age, their tolerances change and they become less able to withstand excessive current or mismatched impedances.

I'd get a 4-channel amp and drive the 4" speakers off the front channels and the 6X9's off the rear channels. And just power the subs off the V12 making sure that they are connected to show a minimum load of 2ohms.

Hope this helps.

Jul 27, 2009 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

A peavey special 130 guitar amp with excessive hum


I used to have one of these years ago!

What do you mean when you say 'switch to the off position'? Do you mean it hums when switched off?

Because the sound does not fully follow volume, it is likely a bad connection or power filter capacitor is not working.

Either way, it means a trip to a repair shop. There is nothing in there you can fix unless you are a repairman. Your local music shop should be able to coordinate a repair.

If this amplifier is like the 1983 version I had, its built like a tank and the fix should be easy.

Hope this helps!

Mar 19, 2009 | Audio Players & Recorders

1 Answer

Sub woofer volume adjustment


The gain dial is not a volume control. The gain dial is used to compensate the output level of your car radio head unit. all car stereo units output are not alike. If you set this gain level too high, it will cause major distortion (clipping) to the audio output of you speakers when cranked up. This excessive distortion WILL eventually, or even quickly damage or blow your speakers.

I personally blown speakers this way no not properly setting this. (lesson learned, I guess :| )

Jan 27, 2009 | Clarion DXZ545MP CD Player

1 Answer

Which is a better tuning setup for good quality bass ?


The KAC-8401 has a bass boost switch. Be sure that is on +6dB setting.
Secondly, LPF (low pass filter) should be selected, with the crossover cutoff set to 60Hz.


Follow the instructions on this site for accurate tuning....
http://trussinme.com/Apps/audio/voltagecalc/default.asp



Manual For Download:
http://inform3.kenwoodusa.com/manuals/KAC8401.pdf

There is so much bad information and VOODOO going around the internet about how to set car audio amplifier gain controls that I thought I better write this. Gain controls on an amplifier are basically just small potentiometers (variable resistors) or volume controls if you will, that allow you to adjust the incoming signal to the amplifier so the amplifier works well with your headunit of choice or to match the level of other amplifiers in your system.
Its not rocket science to set the gains. Gains are like little volume controls, (I don't know why so many installers are taught that gains are NOT volume controls, when in fact that is EXACTLY what they are!) its super simple to just set them where the level sounds good to you.
With one amplifier its desirable to have a nice swing on your headunits volume control. Let me try to clarify this a little.
If we hook up a head unit with a 8volt (or more) output to an amplifier, then the volume will get loud very fast when we start to turn it up...In other words if our digital volume control goes from 1-30, then a HIGH VOLT output to an amplifier might make the amplifier reach full power at 5 on the volume scale... That kinda sucks cause it would be nice if you had a little more swing in your 1-30 range!
And by the same token a headunit with a LOW VOLT output might have to be turned up all the way to 30 and might still not quite drive the amplifier to full power... That sucks too!
A gain control in this case will allow you to adjust the amplifier so it allows the volume of a headunit to control the amplifier so it will get loud at a desirable point in the 1-30 swing... Usually about 3/4 the way up. We don't want it to get loud too fast as we wont have a good control as music levels differ. And we don't want it to have to be turned up all the way to get loud either, because since different music may be recorded at different levels if we set the gains for max output with one music source it might not get loud with a music source recorded at a lesser level.
So, by setting the gains so 3/4 turn of the headunits volume knob gets it LOUD gives you plenty of control and some extra above the 3/4 mark in case you get some music that's recorded at a lesser level...
To do this its easiest to do it by ear. No need to drag out the TEST TONES and OSCILLOSCOPES! They will do you absolutely no good.
One MYTH is how the gain controls will help to prevent amplifier distortion and amplifier clipping... That's simply not true, UNLESS you set the gains at a level where the headunit cannot possibly drive the amplifier to full power.. And even if you were to find this magic spot for your gain controls then (A) you would have to turn that volume control FULL SWING to get your system loud and (B) since many music sources (or disks) are not all recorded at the same level, its likely that if you have a disk recorded lower then you cant get it loud at all! and if you have a disk recorded louder then you can still surpass your magic spot... So in reality searching for this magic spot is fruitless! Dont waste your time...
In the early 80s when high fidelity car amplifiers were just starting to make the scene I worked with a pretty crazy installer that was kind of legendary around these parts... I wont mention his name but he was pretty highly respected at the time.. Well anyway, this crazy installer had heard that the amplifier gain control was to prevent amplifier clipping.. (still widely heard today).. Well this crazy installer set up EVERY CAR WE DID to the point where the gain control was so LOW that if you turned the head unit all the way up the amplifier WOULD NOT DISTORT.. And of course if you did turn the headunit all the way up the system would just be getting loud...
Customers would find that some cassettes would be recorded at a lower level and the music just wouldn't get loud enough... The Crazy installer would FLIP OUT and tell the customer that a REAL AUDIOPHILE doesn't want his music to distort or be that loud! The customers were NOT HAPPY and came to me to say "Gee Eddie, I don't want to make the other guy mad but can you adjust my system so it sounds good and please dont tell the other guy? Of course I said yes, and some of those customers from back in the early 80s are still my customers and they are sending sending their children to me for work as well.
SO, you see the only way the gains can be used to eliminate clipping or distortion will also limit your top end volume! And for most of us it is NOT DESIRABLE to do so.
As long as this is not done, it is just as possible to turn your system up to FULL power and beyond to clipping no matter where the gains are set....

Jan 01, 2009 | Kenwood KAC-8401 Car Audio Amplifier

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