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<blockquote data-quote="Wabatuckian" data-source="post: 8742329" data-attributes="member: 673204">Sounds good.Wanna hear a funny story? Once there was this dude named Wabutuckian, and he installed a new amp to replace his 30-year-old Legacy amp that finally failed.Well, this feller still had a vintage Legacy subwoofer installed, and, though it had a Kevlar cone, it still wasn&#039;t the best at power handling when new, let alone being abused on a display for 30 years. So, Wabatuckian turned his new Class D amp down to the Legacy sub&#039;s specs. He promptly forgot he did that.A couple weeks later, Wabatuckian installed a new sub that more closely matched the advertised 400w RMS of the Class D sub. He wasn&#039;t impressed because the 400w didn&#039;t sound like 400w.One day, after Wabatuckian posted on caraudio.com, he got to thinking: Did he turn the amp up after installing the subwoofer? He flat couldn&#039;t remember. He only remembered being in a hurry to install the sub between the time he took off from his real job, and the time he had to pick up his kids from school.So, Wabatuckian checked.Wabatuckian found a reading of 20v where there should have been a reading of 40v across the speaker terminals, so Wabatuckian increased the gain to 40v.Wabatuckian then heard closer to what he&#039;d expect of&nbsp; 400w RMS coming from a 12&quot; woofer. Of course, Wabatuckian, that very day, had ordered another amp that&#039;ll do 600w RMS into 4Ω , and so can run the full 500w RMS that the sub is rated for (and, if it blows, it has a one year warranty.)It looks like Mrs. Wabatuckian is gaining a 400w RMS amp for her car. She&#039;s been bugging Wabatuckian to do this for her, and so he will.&lt;sigh&gt;</blockquote>

[QUOTE="Wabatuckian, post: 8742329, member: 673204"] Sounds good. Wanna hear a funny story? Once there was this dude named Wabutuckian, and he installed a new amp to replace his 30-year-old Legacy amp that finally failed. Well, this feller still had a vintage Legacy subwoofer installed, and, though it had a Kevlar cone, it still wasn't the best at power handling when new, let alone being abused on a display for 30 years. So, Wabatuckian turned his new Class D amp down to the Legacy sub's specs. He promptly forgot he did that. A couple weeks later, Wabatuckian installed a new sub that more closely matched the advertised 400w RMS of the Class D sub. He wasn't impressed because the 400w didn't sound like 400w. One day, after Wabatuckian posted on caraudio.com, he got to thinking: Did he turn the amp up after installing the subwoofer? He flat couldn't remember. He only remembered being in a hurry to install the sub between the time he took off from his real job, and the time he had to pick up his kids from school. So, Wabatuckian checked. Wabatuckian found a reading of 20v where there should have been a reading of 40v across the speaker terminals, so Wabatuckian increased the gain to 40v. Wabatuckian then heard closer to what he'd expect of 400w RMS coming from a 12" woofer. Of course, Wabatuckian, that very day, had ordered another amp that'll do 600w RMS into 4Ω , and so can run the full 500w RMS that the sub is rated for (and, if it blows, it has a one year warranty.) It looks like Mrs. Wabatuckian is gaining a 400w RMS amp for her car. She's been bugging Wabatuckian to do this for her, and so he will. <sigh> [/QUOTE]

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