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Sedans Nissan Altima Nissan Altima Audio Questions
73 messages, Last post on Nov 15, 2009 at 4:20 PM
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2007 Nissan Altima 3.5 SL - Bose premium sound For some reason the speakers hiss even when the stereo is off and even if the car is simply on accesory (ACC). Has anyone experienced the same annoying problem? Any help would be greatly appreciated. I think it might be that the amp/preamp is powered on separately from the head unit - therefore sending a signal to the speakers when the car is powered on. |
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| Any one know how many watts this unit puts out? Cannot find the info anywhere, including the dealer. | |
| Thought I read that is is like 264 Watts. I have a TL and it is bette rthan the TL, btu not as good as the JBL that was in my 07 Camry. I beleive the JBL was 440. The TL is decent through about mid power then it flattens out loosing low end fast. The Bose in the Altima has better dynamic raneg through more of the power band, but at about 3/4 it starts to flatten out and near the top actually distorts, somehitng the TL and JBL never do. The JBL is super strong through most of its power band delivering good low end even near the top. | |
My 2007 Nissan Altima has horrible radio reception. My Toyota picks up the same stations from 75+ miles away. The Nissan is total static at 25 miles. Anyone else had this problem? Any other suggestions?
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Replying to: roopster (Aug 19, 2007 10:01 am) Not sure what to do. |
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| Good Day all, Does anyone know where I can get a wiring diagram for a 1993/94 Altima CD/Stereo. I beleive this stereo is made by Infinity for Nissan. Thanx for your time and efforts... PEACE Larry | |
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Replying to: azold (Jun 24, 2007 11:48 am) Were you able to get this fixed?
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Replying to: marcin (Jan 16, 2008 7:35 am) After speaking with various car stereo installers, the consensus is that there is noise being generated by the more powerful amplifier that is installed with the Bose Premium Sound Package. Unfortunately, this upgraded amplifier (located on the underside of the rear decklid in the trunk) turns on using a different power source than the head unit. Therefore the amplifier is turned on once the accessories are activated, not in conjunction with the head unit. Why the hissing? Nissan/Bose installed a powerful amp which has no noise gate (cut off) on the hissing noise until the head unit is activated. It's not there's anything wrong with the car (I wish because then I would have them fix it) - it was poorly designed. I believe it was an issue of cost/benefit. To have the amp and the head unit turn on together would be more costly (they would need to run more wires through the car and most Altimas are purchased WITHOUT the premium sound package.) The cheaper method is to simply tap into the power at the rear of the car when the upgraded stereo is installed.) I have to assume that the hissing was an acceptable byproduct of this cost-cutting design. They could have installed a noise gate somewhere in the line to allow the hissing only when the head unit is powered on. Why not? I have no idea. Scientific information about the hissing noise: "All amplifiers generate a certain amount of electrical noise. Note: the noise I refer to here is noise inherent in semiconductor circuits , not noise caused by improper wiring, poor shielding, etc. Generally, the more powerful the amplifier, the more noise it will put out. If you turn on an amplifier (with the input device connected but powered off) and listen to a speaker connected to the amp you can clearly hear a hissing sound. This pretty much represents the noise floor of the amplifier. If the amp has an input level control you will likely notice that the noise may vary as a function of the setting of the control. For a powerful system, the noise might seem pretty obvious and annoying; however when actual music is playing the noise will be totally masked." I think that last sentence wraps up Nissan's decision to leave the hissing. Most of the time, the car will be used while it is moving or when the stereo is on, or both, therefore reducing the time where the hiss can be heard (making it less of a problem - to them). The problem is that the car is so well insulated, I can still hear the hissing while driving around with the stereo off! Hopefully someone will get to the bottom of this soon.
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Replying to: marcin (Jan 16, 2008 7:35 am) Highly disappointed with sound - too much base and front door speakers sound muddled. Thought front door speakers no good and went to dealer - listened to others and problem is the same. Great car horrible sound. Suggest in future anyone buy the normal(also lousy) system and then upgrade at an audio shop. Once "stuck" with Bose then trying to replace system extremely expensive. Have visited several audio stores - some say impossible to just replace front door speakers - other say you can do it. Need help from other dissappointed buyers with same problem and best way to improve sound - |
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I am looking to purchase a 2008 Altima 2.5SL with all the bells and whistles but am curious about the Ipod compatibility. They advertise with the "ipod" stickers on the windows but all I see is the "Aux" jack on the stereo. Correct me if I'm wrong, but doesn't that simply mean that your ipod will play through the stereo? I am assuming that you will have no control w/the stereo or "interface" with the ipod. Is that correct? Does anyone use the aux and how well does it work? Is there a way to get full integration and if so, is it worth the price? Any extra integration with the Nav system? Ipod video, etc??? Thanks!!!! |
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