Mark Levinson Audio?
04-04-13, 11:53 AM
#196
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Join Date: Feb 2013
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Need feedback.
If I were to take the stock 8"sub out which is a downfiring sub into the trunk, and replace it with a standard 8" sub that fired up into the car, would the acoustics and air vibrate the heck out of the rear of my car? Or is it best to stick with a down firing shallow mount 8" sub? Does anyone know the RMS output of the mark levinson amp for the sub channel? And I am assuming the speaker is a standard 4Ohm speaker, has anyone measured theirs when it was not connected to the amp? If I replace my sub on my own I want to make sure I closely match the rating of the old sub so I don't over draw the amp.
Thanks for your help.
Last time I spoke to harman regarding this issue, it sis not appear that they were eager to come out with a good solution to our problem.
If I were to take the stock 8"sub out which is a downfiring sub into the trunk, and replace it with a standard 8" sub that fired up into the car, would the acoustics and air vibrate the heck out of the rear of my car? Or is it best to stick with a down firing shallow mount 8" sub? Does anyone know the RMS output of the mark levinson amp for the sub channel? And I am assuming the speaker is a standard 4Ohm speaker, has anyone measured theirs when it was not connected to the amp? If I replace my sub on my own I want to make sure I closely match the rating of the old sub so I don't over draw the amp.
Thanks for your help.
Last time I spoke to harman regarding this issue, it sis not appear that they were eager to come out with a good solution to our problem.
04-04-13, 12:37 PM
#197
Pole Position
Need feedback.
If I were to take the stock 8"sub out which is a downfiring sub into the trunk, and replace it with a standard 8" sub that fired up into the car, would the acoustics and air vibrate the heck out of the rear of my car? Or is it best to stick with a down firing shallow mount 8" sub? Does anyone know the RMS output of the mark levinson amp for the sub channel? And I am assuming the speaker is a standard 4Ohm speaker, has anyone measured theirs when it was not connected to the amp? If I replace my sub on my own I want to make sure I closely match the rating of the old sub so I don't over draw the amp.
Thanks for your help.
Last time I spoke to harman regarding this issue, it sis not appear that they were eager to come out with a good solution to our problem.
If I were to take the stock 8"sub out which is a downfiring sub into the trunk, and replace it with a standard 8" sub that fired up into the car, would the acoustics and air vibrate the heck out of the rear of my car? Or is it best to stick with a down firing shallow mount 8" sub? Does anyone know the RMS output of the mark levinson amp for the sub channel? And I am assuming the speaker is a standard 4Ohm speaker, has anyone measured theirs when it was not connected to the amp? If I replace my sub on my own I want to make sure I closely match the rating of the old sub so I don't over draw the amp.
Thanks for your help.
Last time I spoke to harman regarding this issue, it sis not appear that they were eager to come out with a good solution to our problem.
http://www.crutchfield.com/p_236RT8P...PT.html?tp=114
Built in amp, doesn't take up a lot of space. Then when Lexus does come out with a fix, you could just disconnect it and they will never know it was there.
04-04-13, 05:32 PM
#199
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Join Date: Apr 2013
Location: NY
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Hey TPatel where did you get your vehicle fixed, and who was the service advisor? Have you played music with a lot of base to make sure? Can it be possible ths is the fix, hope so.
04-04-13, 06:04 PM
#200
300h? I think a poll is in order for this issue. I have no idea how this is set up in the hybrid. Is the down firing sub still visible in the trunk, or do the batteries block it?
04-05-13, 05:39 AM
#202
04-05-13, 06:42 AM
#203
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Join Date: Oct 2012
Location: IL
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04-05-13, 06:50 AM
#204
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Ask for the service manager
Bredemann Lexus
2000 Waukegan Rd Glenview, IL 60025
(847) 510-5535
Last edited by tpatel12; 04-05-13 at 06:58 AM.
04-05-13, 07:10 AM
#205
04-05-13, 07:33 AM
#207
I think cabinet volume size affects low frequency response a lot more for really small enclosures, much smaller than car trunks! The difference in trunk volume between the 350 and the 300h won't move the woofer's resonant frequency so much to be that noticeable, especially considering the apparent amount of care Harman Becker put into the ES ML's tuning.
04-05-13, 07:42 AM
#208
I think cabinet volume size affects low frequency response a lot more for really small enclosures, much smaller than car trunks! The difference in trunk volume between the 350 and the 300h won't move the woofer's resonant frequency so much to be that noticeable, especially considering the apparent amount of care Harman Becker put into the ES ML's tuning.
04-05-13, 08:26 AM
#209
Reflections are a concern on the listening side of a speaker system. When you're talking wavelengths of 10 to 60 feet (roughly 20 to 100 Hz), there are no reflections in an acoustic suspension enclosure (the trunk).
Last edited by bobsobi; 04-05-13 at 08:45 AM.
04-05-13, 09:03 AM
#210
Then we're back at the enclosure dynamics. Do you agree density can have an affect? I'm sure the batteries are more dense than the empty trunk enclosure. Ever heard the effects on bass in a concrete basement, vs. an open framed room?