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Can you just eye ball 4th orders?
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<blockquote data-quote="Buck" data-source="post: 8814224" data-attributes="member: 591582"><p>Where a vehicle peaks is also based on like sheet metal resonance, structural quality, noise insulation and strength of the vehicle body as it’s flexing. I’ve noticed vehicles like German cars can peak lower or hold lows better, like a VW Jetta, where something like a 90’s Honda Civic can peak higher.</p><p></p><p>With Ford Explorers, which I have a long history with, the 2nd gen ones peaked in the high 40’s or low 50’s iirc, and my 3rd gen peaked at 35-36 hz hard (so did the 4th gens) with a secondary peak around 70 hz. Those Explorer generations are fairly similar in size and yet peak like 10-20 hz apart with non-walls.</p><p></p><p>I think it’s the same type peak changes between similarly sized vehicles, where you can have one fully deadened vehicle and another that’s not, and the fully deadened vehicle of the exact same type is going to peak lower due to the added mass to all the panels. Just like adding Mms to a sub will make its Fs lower. There’s a lot of factors to sound, lol.</p></blockquote><p></p>
[QUOTE="Buck, post: 8814224, member: 591582"] Where a vehicle peaks is also based on like sheet metal resonance, structural quality, noise insulation and strength of the vehicle body as it’s flexing. I’ve noticed vehicles like German cars can peak lower or hold lows better, like a VW Jetta, where something like a 90’s Honda Civic can peak higher. With Ford Explorers, which I have a long history with, the 2nd gen ones peaked in the high 40’s or low 50’s iirc, and my 3rd gen peaked at 35-36 hz hard (so did the 4th gens) with a secondary peak around 70 hz. Those Explorer generations are fairly similar in size and yet peak like 10-20 hz apart with non-walls. I think it’s the same type peak changes between similarly sized vehicles, where you can have one fully deadened vehicle and another that’s not, and the fully deadened vehicle of the exact same type is going to peak lower due to the added mass to all the panels. Just like adding Mms to a sub will make its Fs lower. There’s a lot of factors to sound, lol. [/QUOTE]
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Can you just eye ball 4th orders?
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