Hi everyone, I purchased a brand new 2011 Range Rover Supercharged (full size) in April 2011. I got the Logic 7 Hi-Fi (1200 watt, 19 Speaker sound system) option installed with the vehicle. Since day one, I noticed if I turn the sound volume up to a high volume and
turn multiple accessories on (or even every accessory off and only the heated windshield on), the sound starts clipping out. I then did some testing and learned that even when the volume is as low as about 70%-80%, the sound still clips out*. The dealership mechanic did some electrical draw tests with the truck started and learned that the sound is clipping out when the voltage drops below 12V; however, they are refusing to fix the problem because apparently other vehicles of the same year and sound system do the same thing. At first we thought it was a safety feature where the amp was clipping out to prevent damage but when the dealership trickle charged the battery to 100% charge, the sound did not clip out. If the truck even sat idle overnight after the trickle charge, the sound would clip out again the next day. I was told the vehicle is operating as designed and they will not do anything to try to fix it. I'm a person who loves sounds systems and I often listen to loud music, I think it's kind of ridiculous that this is considered to be normal and that Land Rover will do nothing. My 2009 Range Rover Supercharged had the upgraded sound system as well (different system with less speakers); however, the sound did not clip out on that even at 100% volume (I understand that that vehicle is quite different). My sound system guy I deal with suggested that the alternator may be too weak and a modified or aftermarket alternator should solve the problem (possibly paired with a deep cycle battery); however, then I run into issues with my warranties being void if something electrical related goes wrong. Customer relations basically told me that they won't do anything unless multiple complaints for the same problem come in. I understand that most people probably wouldn't even realize this problem exists under normal conditions. Does anyone have any input or suggestions on what I can do about this or what I can say to Land Rover? Does anyone have the same vehicle and can maybe see if they have the same problem?
*I calculated that value by counting how many steering wheel button clicks it takes to get from full volume down to zero volume, then started at full volume and click the button down until the clipping stopped and with simple math, calculated that value (I even verified the clipping wasn't only going from full volume downward but even from low volume and raising it to the clipping point).
Thanks for your time!
turn multiple accessories on (or even every accessory off and only the heated windshield on), the sound starts clipping out. I then did some testing and learned that even when the volume is as low as about 70%-80%, the sound still clips out*. The dealership mechanic did some electrical draw tests with the truck started and learned that the sound is clipping out when the voltage drops below 12V; however, they are refusing to fix the problem because apparently other vehicles of the same year and sound system do the same thing. At first we thought it was a safety feature where the amp was clipping out to prevent damage but when the dealership trickle charged the battery to 100% charge, the sound did not clip out. If the truck even sat idle overnight after the trickle charge, the sound would clip out again the next day. I was told the vehicle is operating as designed and they will not do anything to try to fix it. I'm a person who loves sounds systems and I often listen to loud music, I think it's kind of ridiculous that this is considered to be normal and that Land Rover will do nothing. My 2009 Range Rover Supercharged had the upgraded sound system as well (different system with less speakers); however, the sound did not clip out on that even at 100% volume (I understand that that vehicle is quite different). My sound system guy I deal with suggested that the alternator may be too weak and a modified or aftermarket alternator should solve the problem (possibly paired with a deep cycle battery); however, then I run into issues with my warranties being void if something electrical related goes wrong. Customer relations basically told me that they won't do anything unless multiple complaints for the same problem come in. I understand that most people probably wouldn't even realize this problem exists under normal conditions. Does anyone have any input or suggestions on what I can do about this or what I can say to Land Rover? Does anyone have the same vehicle and can maybe see if they have the same problem?
*I calculated that value by counting how many steering wheel button clicks it takes to get from full volume down to zero volume, then started at full volume and click the button down until the clipping stopped and with simple math, calculated that value (I even verified the clipping wasn't only going from full volume downward but even from low volume and raising it to the clipping point).
Thanks for your time!
