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Message: <blockquote data-quote="hi1983" data-source="post: 1439219" data-attributes="member: 28803">one more, if say monoblock setting maximize, don use class D monoblock to push speaker, only for Subwoofer, Class D will make sound above 100Hz very very teruk, so sometimes hear people say its Class D is suck but acually he don understand. so if you want your sub to play higher hertz maybe say above 100 more, than maybe class D may not suit you.for me, although say the none directional hertz is about 80hz, but it is also effect by the crossover slop ( low pass) for mine, i set at 65hz 48db slop so will not make the vocal suck up. how ever i have 2pair 6.5" mid bass at front door for produce better mid low frequency to balance, becos of very slop subwoofer will not enchance the mid bass anymore. ( 2 6" close together for hertz below 65- 150, also 24db slop)this setting same as very good english ACE says Upfront bass, but for linear i need two mid bass,than will became clean, for subsonic filter, acually if say normall recording cd will not go as low as that,, but if say the woofer only can handle probely upper 40hz, than it needs, but say if the subwoofer can handle easy at 20hz or 25hz (normally very few) than no need subsonic filter aready,, most Hu also can not produce below 20hz sound scorce.</blockquote>

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Trumpet for Blacktop 4-Throttle

Hi, anybody out there can machine (aluminium) trumpets for the Toyota Blacktop 4 throttle?

Hole diameter start at 49mm and grow to around 70mm at 75mm height... or any other custom dimensions??

Rgds,
Andrew

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