Question about Sony XM-404EQX Car Audio Amplifier

2 Answers

I've been given one of these amps by a friend. There's a slight problem with it though, the front rht input is far more sensitive than any of the others. It's as if the gain is turned to the max on that input only. I don't know the units history but everything else seems ok. Any ideas? Cheers Tony Australia.

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 44 Answers

If the other channels put out only a small amout of sound compared to the rh channel it is possible that the preamps might be buggered. To test this get one set of outputs from your headunit and connect them to each channel one by one and the same on the output side with a speaker. If the problem doesnt exist then, it could be your head unit that is at fault. check the settings in your head unit as well you might have accidently changed the fader settings.

Other than that drop it in for a quick bench test at a local car stereo installation place and they should be able to offer a quick and cheap if not free diagnosis of what the issue will be.

Posted on Jun 27, 2009

  • mutleysdoo Jun 28, 2009

    if it is easy for the tech to diagnose the faulty component, and get the replacement part I dont think you should get a very high labour cost as it should be a realively quick fix. all the best mate.

    Just make sure you get a quote on repair first before committing to it as you may find it more benificial to get a new amp.

    good luck mate


×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Cheers mutleys. I've not installed it yet and am bench testing it with an i pod as source into the phono inputs and similar speakers into all of the outputs. I suspect that there's a problem with a gain transistor in the pre amp stage of that particular channel but I'm no expert. As all of the gains and equalisation pots work and the volume is there I hope that it can be fixed cheaply, I was hoping to use the front and rear outputs in bridged mode to give 80 rms into 2 channel driving some big old Pioneer 3 ways. It'd be a pity to junk it.

Posted on Jun 27, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Tascam 122 Mk III - input signal is low and distorted


It is hard to guess what is causing this but for all of the gain to be reduced like that either the deck has seen some really high input signal in the past that blew out some amplifiers or that there is a power supply component that has taken the input electronics down.
I suspect that you will need to have a Technician look at it. If you are near Chicago, I may be your answer, I have been working with these Teac units for 40 years and was a Lead Tech at Chicago Factory Service in Arlington Heights.
I can be reached at skywavebe@sbcglobal.net
If you are far off- I have other people that can do the job one in New Jersey and a few others.

Aug 14, 2012 | Tascam Audio Players & Recorders

2 Answers

My band plugs into the input channels on the SX2442FX mixer, which we then hook up to the PMP2000 to use as a PA. Since the SX2442FX is not a "Powered" Mixer, I figured that we should be going...


Either way will work, however your friend's method probably would be slightly better since it goes through less stages within the PMP2000. The "left and right power amp inputs" are the INPUTS to the power amp in the PMP2000 and hence are the best places to connect the mixer if using the PMP2000 as only a power amp. Note doing this will LIKELY disconnect any other input to the PMP2000 from the power amps in it... that is all the preamps in the PMP2000. DO USE TRS cables!!! and power both units from the same receptacle to avoid ground bounce.

Aug 25, 2011 | Behringer Sx2442fx Eurodesk 24channel...

1 Answer

Rattle in front and some kind of slight noise when turning car , and clunking on bumps in back, rear struts and towering already changed 6 months ago but this back end sound is very similar. Dodge says I...


Why would you be at a dealer in the first place ?

A dealer is for warrantee work.Then you go to
a repair shop, you thoughly checked out & have used
for decades

You don't authorize any work, until you go to the dealer or shop
& go into the service bay & see first hand the issues.

So,no, you not suckered or anything else

Your not educating yourself.

Jul 24, 2011 | 2001 Dodge Stratus

1 Answer

The center channel is not working. according to the color of the plug that goes into the amp from the speakers. what color goes to which speaker?


Get the manual free...

http://www.retrevo.com/support/Sony-RHT-G2000-manual/id/11167dj888/t/2/

Um, this product doesn't use color coded or proprietary speaker wires nor does it have a connector for Center, which is built into the stand as well as the front speakers.

Jul 13, 2011 | Sony RHT-G2000 System

1 Answer

TOUCH SCREEN TOO SENSITIVE KEEP MAKING CALLS WHEN I ONLY WANT TO SCROLL DOWN SCREEN


Hello Eda,

You can resolve the problem by increasing or decreasing accuracy on the keyboard. Press MENU on the Home screen > Settings > Language & keyboard > Touch Input > Text input > Calibration tool. Tap the given phrase and after you have completed the calibration, the keyboard should be more attuned to your touch screen habits.

Jun 18, 2011 | HTC Wildfire Cell Phone

1 Answer

How to connect microphone to Yamaha RX-V365 as a PA system.


Home-theatre receivers don't have microphone inputs. If you want to use the receiver as an amplifier in PA system, you need to use some kind of mic pre-amp or a mixer with mic inputs.
For PA mixer is needed anyway almost every time and all mixers have at least one mic input (with a pre-amp). Mixers have line-level output(s), which you can connect to the analog input of receiver.
Using receiver as an amp in PA has advantage that you have 5 channel amp. When using high sensitive PA speakers (as oposed to less sensitive Hi-fi home speakers), you can get good performance with the power rating of receiver. You could even use 2 separate channels for subwoofers and 2 channels for satelite speakers - but for that you would need a receiver with 5.1 analog inputs and special device called crossover which would divide the output from mixer into low-frequency signal and high-frequency signal which you would then connect to the front and rear analog inputs. But with RX-V365 you can use only 2 channels with analog input

Sep 15, 2010 | Yamaha Rx-v365 A/V Home Theater Receiver

1 Answer

I have two 12 inch rockford p1 punches powered by an 800 watt sony explode amp (2 Channel) and i want to install another 15 inch kicker with a 1200 watt amp not sure the model, i got it from a friend and...


I have a similar setup & I just run the second amp straight off the other amp by running positive & remote wires directly from 1 amps positive & remote inputs to the others amps inputs. But my head unit has RCA inputs, (sub in & front & rear inputs) so from my 4 channel amp I run 2 6 inch alpine S's to the front to the front RCA inputs of the head unit, & 2 Pioneer 440w 6x9 inch speakers to the rear inputs. & my 800w 12 inch sub from my 2 channel amp to the sub woofer inputs on the head unit. Has blown my eardrums for nearly 12 months now great stuff! Hope this has helped

Mar 12, 2010 | Sony Car Audio & Video

1 Answer

Amp is on but wont work...please help!!


Hello lillj2323,

OK, you say that the amp won't get your RF Punch's to pound. You do not say if you get any output at all. So let's start from the beginning.

The KAC-X542 is a multichannel amp with 2 sets of stereo outputs, 1 set of stereo outputs and 1 bridged connection for sub(s), or 2 bridged connections for sub(s).

Make sure that both 30A fuses just to the left of the power connections are good.

Check that the "ID number" is set to "0". Make sure that you have RCA inputs to both channels A and B (leftmost pairs of jacks). Your subs should be connected to the 1st (+) and 3rd (-) of each set of output terminals.

Make sure that there are no broken off plugs or pins in the jack marked "H/U Terminal" or either of the 2 jacks marked "remote".

Check that the amp is set up for 2-channel bridged. The 6 switches below the filter controls and the filter pots should initially be set:
1 - Middle position (off)
2 - Up position (on)
3 - Down position (off)
4 - Up position (mono)
5 - Down position (off)
6 - Up position (mono)
The pots should be set approximately:
LPF - minimum
HPF - maximum
Input Sensitivity - match your head unit - probably between 1 - 3
HPF - maximum
Input Sensitivity - match your head unit - probably between 1 - 3
After you get the speakers working, the LPF, HPF and Input Sensitivity can be tweaked for best sound and lowest distortion.

Hope this helps.

Apr 17, 2009 | Kenwood eXcelon KAC-X542 Car Audio...

Not finding what you are looking for?
Sony XM-404EQX Car Audio Amplifier Logo

84 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4848 Answers

Larry Stiles
Larry Stiles

Level 2 Expert

287 Answers

Philip Rowney
Philip Rowney

Level 2 Expert

94 Answers

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

Answer questions

Manuals & User Guides

Loading...