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15" si mag vs. Idmax SQ BATTLE
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<blockquote data-quote="thadman" data-source="post: 2967335" data-attributes="member: 561122"><p>First and foremost, I'd like to establish that you're the forum member who's running two different subs in the same install, you are no source for scholarly information. Secondly, <strong><em><span style="font-size: 36px">you have NO idea what you're talking about. Please stop spreading ignorant information</span></em></strong>. The resonance of panels is NOT a reflection, as they absorb some of the energy and release the energy over an extended period of time. That is why, they CONTINUE to vibrate LONG AFTER the original note has passed. A perfectly inert panel (such as a wall of concrete) would reflect...not a flimsy panel.</p><p></p><p></p><p>LOL? First off, I HIGHLY doubt you will be able to discern between a 60hz wave and a 61hz wave of the same amplitude. With that being said, you are completely wrong and you're making yourself look like an idiot. Transient response (as I have established with scientific information, not some "idea of mine") is inaudible at low frequencies. Your hearing sensitivity at these frequencies is abyssmal, lets have a look at a fletcher-munson equal loudness curve.</p><p></p><p><img src="http://upload.wikimedia.org/wikipedia/en/thumb/4/49/Lindos4.svg/400px-Lindos4.svg.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>You are tens of dBs less sensitive at these frequencies as compared to your prime hearing. Thats why you can put up with such high levels of non-linear distortion without error.</p><p></p><p>Second, if you believe the transient response of woofers differs in a vehicle. I'd love to challenge you to setup a measurement setup in your car and measure the linear response of multiple woofers, and see if there is any palpable difference. The resonance of the panels will mask all of your results and your subjective perception of the sound quality.</p><p></p><p></p><p>Where are you getting your facts? Please link me. SPL translates to SOUND PRESSURE LEVEL and SQ translates to SOUND QUALITY. The goal of SPL is the maximum amount of displacement (efficiency and xmax), while the goal of SQ is flat frequency response and low non-linear distortion. SPL drivers wish to achieve the greatest linear travel at the specific frequency at the expense of fidelity, SQ drivers wish to reproduce realistic listening levels that are level matched with the rest of your system and produce little distortion in the process. <strong><span style="font-size: 36px">Transient response of the driver does NOT affect perceived sound quality.</span></strong></p><p></p><p>SPL drivers may handle more power, have less power compression at higher power levels or higher efficiency than SQ drivers...these are the reasons why they get louder not transient response.</p><p></p><p>Would you care to explain the relationship between transient response and SPL/SQ drivers?</p></blockquote><p></p>
[QUOTE="thadman, post: 2967335, member: 561122"] First and foremost, I'd like to establish that you're the forum member who's running two different subs in the same install, you are no source for scholarly information. Secondly, [B][I][SIZE=36px]you have NO idea what you're talking about. Please stop spreading ignorant information[/SIZE][/I][/B]. The resonance of panels is NOT a reflection, as they absorb some of the energy and release the energy over an extended period of time. That is why, they CONTINUE to vibrate LONG AFTER the original note has passed. A perfectly inert panel (such as a wall of concrete) would reflect...not a flimsy panel. LOL? First off, I HIGHLY doubt you will be able to discern between a 60hz wave and a 61hz wave of the same amplitude. With that being said, you are completely wrong and you're making yourself look like an idiot. Transient response (as I have established with scientific information, not some "idea of mine") is inaudible at low frequencies. Your hearing sensitivity at these frequencies is abyssmal, lets have a look at a fletcher-munson equal loudness curve. [IMG]http://upload.wikimedia.org/wikipedia/en/thumb/4/49/Lindos4.svg/400px-Lindos4.svg.png[/IMG] You are tens of dBs less sensitive at these frequencies as compared to your prime hearing. Thats why you can put up with such high levels of non-linear distortion without error. Second, if you believe the transient response of woofers differs in a vehicle. I'd love to challenge you to setup a measurement setup in your car and measure the linear response of multiple woofers, and see if there is any palpable difference. The resonance of the panels will mask all of your results and your subjective perception of the sound quality. Where are you getting your facts? Please link me. SPL translates to SOUND PRESSURE LEVEL and SQ translates to SOUND QUALITY. The goal of SPL is the maximum amount of displacement (efficiency and xmax), while the goal of SQ is flat frequency response and low non-linear distortion. SPL drivers wish to achieve the greatest linear travel at the specific frequency at the expense of fidelity, SQ drivers wish to reproduce realistic listening levels that are level matched with the rest of your system and produce little distortion in the process. [B][SIZE=36px]Transient response of the driver does NOT affect perceived sound quality.[/SIZE][/B] SPL drivers may handle more power, have less power compression at higher power levels or higher efficiency than SQ drivers...these are the reasons why they get louder not transient response. Would you care to explain the relationship between transient response and SPL/SQ drivers? [/QUOTE]
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