People with the Eclipse AVN-2454
11-26-2004, 05:31 PM
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People with the Eclipse AVN-2454
Are any of you experiencing any amount of noise in your speakers with the installation of this deck?
I have my share...I would like to know if I am alone?
I have my share...I would like to know if I am alone?
11-26-2004, 09:35 PM
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You maybe expierencing "alternator noise or whine" from your amp. you would need to get a ground loop or check the placement of your power wires and rca cables. They should be on opposite sides of the vehicle and not installed next to each other.
11-26-2004, 10:22 PM
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Originally posted by RANDY350Z
You maybe expierencing "alternator noise or whine" from your amp. you would need to get a ground loop or check the placement of your power wires and rca cables. They should be on opposite sides of the vehicle and not installed next to each other.
You maybe expierencing "alternator noise or whine" from your amp. you would need to get a ground loop or check the placement of your power wires and rca cables. They should be on opposite sides of the vehicle and not installed next to each other.
11-26-2004, 10:22 PM
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Originally posted by jcr847
Im picking my car up from the installer tomorrow with the avn2454 in it. I'll let you know...
Im picking my car up from the installer tomorrow with the avn2454 in it. I'll let you know...
keep me posted bro
Last edited by Ahsmo; 11-26-2004 at 11:16 PM.
11-26-2004, 10:31 PM
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Originally posted by Ahsmo
keep my posted bro
keep my posted bro
11-26-2004, 11:19 PM
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I have a line drive in line with my system which bumps the rca voltage up to 8 ohm back to my eq...
The noise is still there. I think something inside the deck makes the noise, having nothing to do with rcas.
What really pisses me off is playing DVDs, the hiss is even worse because for some reason the audio from the DVD is put out lower then normal thus making you turn the deck up horribly loud. I email eclipse about this...waiting on the reply. I could just have a crappy run deck.
The noise is still there. I think something inside the deck makes the noise, having nothing to do with rcas.
What really pisses me off is playing DVDs, the hiss is even worse because for some reason the audio from the DVD is put out lower then normal thus making you turn the deck up horribly loud. I email eclipse about this...waiting on the reply. I could just have a crappy run deck.
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11-27-2004, 08:34 AM
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Not sure if I understand your last post Ahsmo.....do you have a line driver attached to the speaker outs to reduce to a RCA level. Or do you have a line driver installed on the RCAs to up the output voltage of the RCA. 8 ohms doesn't makes sense regardless.
If you have a line driver on the RCAs then any noise present on the RCAs will be amplified along with the audio signal.
Is the noise there when you are listening to the system with the car off? If that's the case, then you can typically rule out alternator noise.
I haven't installed a AVN2454 so I not sure if it has the usual small silver box attached to the head unit which most Eclipse units have. If it does, make sure to position the box as far away from the head unit as possible and away from any signal wires. That little sucker is a major source of noise.
You probably have already done this, but check each ground in your system. Make sure that the grounding points are void of any paint and you are getting good metal to metal contact. Headunit, amps, etc should all be checked.
Good luck.
If you have a line driver on the RCAs then any noise present on the RCAs will be amplified along with the audio signal.
Is the noise there when you are listening to the system with the car off? If that's the case, then you can typically rule out alternator noise.
I haven't installed a AVN2454 so I not sure if it has the usual small silver box attached to the head unit which most Eclipse units have. If it does, make sure to position the box as far away from the head unit as possible and away from any signal wires. That little sucker is a major source of noise.
You probably have already done this, but check each ground in your system. Make sure that the grounding points are void of any paint and you are getting good metal to metal contact. Headunit, amps, etc should all be checked.
Good luck.
11-27-2004, 08:53 AM
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I ment 8 volt not 8 ohm. The amps are then able to be turned all the down while keeping the same amplitude, thus reducing some noise there...
there is indeed noise when the car is off. There is no usual small silver box attached to the head unit. :\
Grounds have been checked and double checked.
I had another install before this one and it too made noise. Everything changed this time around except the head unit, thus inducing the thought that the deck is the source of noise.
I am going to change the grounds around again...
there is indeed noise when the car is off. There is no usual small silver box attached to the head unit. :\
Grounds have been checked and double checked.
I had another install before this one and it too made noise. Everything changed this time around except the head unit, thus inducing the thought that the deck is the source of noise.
I am going to change the grounds around again...
11-27-2004, 09:48 AM
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I was hoping that the AVN2454 had the small box, since repositioning it usually takes care of most noise complaints other than alternator.
Keep in mind that if you really believe that the noise is coming from the head unit RCAs, then the line drivers you have installed are amplifying the noise present in the RCAs along with the wanted audio signal. Higher RCA voltage outputs help minimize the effect of noise induced from external sources such as other wiring run in their proximity. So while reducing the gains at the amplifer increases headroom, it doesn't change the Signal/noise ratio already present in the RCA.
If your RCA runs to your amps are long, then increasing the RCA voltage is a good idea since induced noise during the run will typically be low level compared to the higher RCA voltage. Provided that the line driver inputs are noise-free and the line drivers themselves don't induce noise!
Don't know where you have your amps installed, but I would try and rule out noise induced during the RCA runs by disconnecting all the RCAs at 3 amps you have. Then run one set from the headunit to the 200.4 through the cabin loose without the line drivers. Readjust your gain on the 200.4 and see what happens. If the noise is still present, then it's most likely not coming from the RCAs.
Next step would be to rule out the headunit RCA output. This would be a PITA, but I would try to take one set of amplified inputs from the headunit and run to the 236is crossovers. Once again, just string the wire through the cabin and see if the noise is reduced or gone. If the noise is still there, then definately try to ground the headunit to a different location and if that doesn't work, talk to Eclipse.
I've been using Eclipse stuff for years and have been extremely happy with their products. Noise has never been an issue so I hope that they haven't lost their focus on Sound Quality in favor of packaging as much features as possible into one chassis.
Tracking down noise is not alot of fun. Keep me informed and I'll check back often.
Keep in mind that if you really believe that the noise is coming from the head unit RCAs, then the line drivers you have installed are amplifying the noise present in the RCAs along with the wanted audio signal. Higher RCA voltage outputs help minimize the effect of noise induced from external sources such as other wiring run in their proximity. So while reducing the gains at the amplifer increases headroom, it doesn't change the Signal/noise ratio already present in the RCA.
If your RCA runs to your amps are long, then increasing the RCA voltage is a good idea since induced noise during the run will typically be low level compared to the higher RCA voltage. Provided that the line driver inputs are noise-free and the line drivers themselves don't induce noise!
Don't know where you have your amps installed, but I would try and rule out noise induced during the RCA runs by disconnecting all the RCAs at 3 amps you have. Then run one set from the headunit to the 200.4 through the cabin loose without the line drivers. Readjust your gain on the 200.4 and see what happens. If the noise is still present, then it's most likely not coming from the RCAs.
Next step would be to rule out the headunit RCA output. This would be a PITA, but I would try to take one set of amplified inputs from the headunit and run to the 236is crossovers. Once again, just string the wire through the cabin and see if the noise is reduced or gone. If the noise is still there, then definately try to ground the headunit to a different location and if that doesn't work, talk to Eclipse.
I've been using Eclipse stuff for years and have been extremely happy with their products. Noise has never been an issue so I hope that they haven't lost their focus on Sound Quality in favor of packaging as much features as possible into one chassis.
Tracking down noise is not alot of fun. Keep me informed and I'll check back often.
11-27-2004, 09:52 AM
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re-read my post,,,,may be alittle confusing
Don't know where you have your amps installed, but I would try and rule out noise induced during the RCA runs by disconnecting all the RCAs at 3 amps you have. Then run one set from the headunit to the 200.4 through the cabin loose without the line drivers. Readjust your gain on the 200.4 and see what happens. If the noise is still present, then it's most likely not coming from the RCAs.
I meant to indicate that this would possibly eliminate noise induced during the RCA runs.
Hope that helps.
Don't know where you have your amps installed, but I would try and rule out noise induced during the RCA runs by disconnecting all the RCAs at 3 amps you have. Then run one set from the headunit to the 200.4 through the cabin loose without the line drivers. Readjust your gain on the 200.4 and see what happens. If the noise is still present, then it's most likely not coming from the RCAs.
I meant to indicate that this would possibly eliminate noise induced during the RCA runs.
Hope that helps.
11-28-2004, 01:16 PM
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The amp gains are set to about 6v so its not that I need to turn the amp gains down...
After unplugging all my crap(ie pulled the plug on my eq) the noise was still there. Granted not as bad as before but it was still there. So I guess its amps+deck=crap. Im going to play with the settings a little more, Ive got a lot of places to mess with stuff:
line driver to eq to amps
eq has gain controls and level controls acting sorta like a line driver
After unplugging all my crap(ie pulled the plug on my eq) the noise was still there. Granted not as bad as before but it was still there. So I guess its amps+deck=crap. Im going to play with the settings a little more, Ive got a lot of places to mess with stuff:
line driver to eq to amps
eq has gain controls and level controls acting sorta like a line driver
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