Speaker replacement
11-19-2009 | 12:37 PM
#1
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Joined: Nov 2009
Posts: 50
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From: Oklahoma
Speaker replacement
Hey guys, was getting ready to buy the new head unit the other day because my bose unit keeps cutting out really bad, and someone said to me that in the 350zs you have to change the speakers at the same time because if you dont you'll keep blowing the amp. on the back of the head unit. is this true?
11-19-2009 | 01:33 PM
#2
Close.
The Bose "amplifiers" are located in the subwoofer compartment and under the antenna in the back of the car. Neither of them attempt speaker level inputs and both are suspect in quality. Here's a photo of the Bose amplifier next to a rather normal quality Infinity one. Size does matter.
The speaker quality is very poor. The magnets are small, the cones make of paper, and just the build quality is $4-$8 worth of the cheapest junk Bose could find, put their name on, and fit in the holes.
Here's the subwoofer comparison - a rather normal Infinity and the Bose side-by-side. That big silver chunk of metal between the two speakers isn't the missing magnet from the Bose subwoofers motor - it's a second pole piece used to tune the Infinity speaker's response.
Here's the front speakers. Note the plastic frame of the Bose and tiny magnet.
And finally - here's the front speaker pairs. Note the nice complex cross-over network of the Infinity. If you look really close you can find the one component of the Bose cross-over, a single cap inline with the tweeter.
Why have I posted these here once a month for the last three or four years? Because we're getting ripped off by Nissan/Bose for this poor quality of equipment and getting charged top dollar for the effort.
If you're making the effort on the headend please attempt to come up with a couple two to three hundred dollars more and replace the front speakers and just skip the subwoofer. Come up with three to four hundred more and replace the subwoofer and give it it's own amplifier. If you need to get by on the cheap spend $150 on front speakers and drive them off your headend and run line-level to the "massive" Bose "amplifier" until you can replace that too.
The Bose "amplifiers" are located in the subwoofer compartment and under the antenna in the back of the car. Neither of them attempt speaker level inputs and both are suspect in quality. Here's a photo of the Bose amplifier next to a rather normal quality Infinity one. Size does matter.
The speaker quality is very poor. The magnets are small, the cones make of paper, and just the build quality is $4-$8 worth of the cheapest junk Bose could find, put their name on, and fit in the holes.
Here's the subwoofer comparison - a rather normal Infinity and the Bose side-by-side. That big silver chunk of metal between the two speakers isn't the missing magnet from the Bose subwoofers motor - it's a second pole piece used to tune the Infinity speaker's response.
Here's the front speakers. Note the plastic frame of the Bose and tiny magnet.
And finally - here's the front speaker pairs. Note the nice complex cross-over network of the Infinity. If you look really close you can find the one component of the Bose cross-over, a single cap inline with the tweeter.
Why have I posted these here once a month for the last three or four years? Because we're getting ripped off by Nissan/Bose for this poor quality of equipment and getting charged top dollar for the effort.
If you're making the effort on the headend please attempt to come up with a couple two to three hundred dollars more and replace the front speakers and just skip the subwoofer. Come up with three to four hundred more and replace the subwoofer and give it it's own amplifier. If you need to get by on the cheap spend $150 on front speakers and drive them off your headend and run line-level to the "massive" Bose "amplifier" until you can replace that too.
Last edited by Paul350Z; 11-19-2009 at 01:36 PM.
11-20-2009 | 08:37 AM
#4
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Joined: Jul 2009
Posts: 60
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From: UK !
ah Pual this looks liek youve answer my queston form another thread , the bose blows amp just send the full signal to both tweet and main and that little cap is theyre idea of a crossover ?
so we could just disocnnect the oem tweet and use coax speakers ?
so we could just disocnnect the oem tweet and use coax speakers ?
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