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旧 Dec 8th, 2012, 00:51   只看该作者   #21
dalplex
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默认

要不试试这个也许能先凑付着?

http://www.chinasmile.net/gallery/albums/userpics/51416/sub_driver.jpg
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旧 Dec 8th, 2012, 07:57   只看该作者   #22
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默认

引用:
作者: dalplex 查看帖子
要不试试这个也许能先凑付着?

http://www.chinasmile.net/gallery/albums/userpics/51416/sub_driver.jpg
你想把人家房子给炸掉?
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旧 Dec 8th, 2012, 08:28   只看该作者   #23
lighting
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默认

给喜欢超低音的同学做个参考, Imax 影院的超低音是怎么样的?

”The subwoofer is equipped with 8 JBL 2245 H woofers.“

8个 18吋 Sub, 但并没有超过家用Sub的性能,在± 3 dB 下,低端只到 40 Hz!

不过也解释了,为什么我觉着 IMAX 的超低音没有家庭影院震撼的体验。

更不用说,Imax 的 音频 有多 HiFi。

不过,我想Imax 如此设计,并不是技术上的困难,可能是为了照顾大多数人的体验,你说如果超低音过低过强,引起某些人的不适或引发发病送院,那



“Usable frequency response shall extend from 20 Hz to 2 kHz. On-axis response, measured at a distance of 2 m (6.6 ft) or more under free field conditions, shall be ± 3 dB from 40 Hz to 800 Hz.


The power amplifier for sub-bass is more than 3000 watts. The price for the Sonics sound system is more than 300,000 $.

Older theaters use modified Bryston amps. All drivers have electronic crossovers. Each 4 way speaker is quad amped. The new theaters are using class D amps.“


这是IMAX 里用的18吋JBL,下限比不过家用12吋的,只是功率很大,600 W continuous。

http://www.speakerrepair.com/repairpicshtml/jbl-2245-after.jpg


http://www.speakerrepair.com/repairpicshtml/jbl-2245-back.jpg

独乐乐,不若与众乐乐!
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旧 Dec 8th, 2012, 08:55   只看该作者   #24
dalplex
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默认

据说只想了半声的原型机。

http://i131.photobucket.com/albums/p304/manosteel875/RichardClarkMTX5footsub.jpg

比较实际的经验证的神器:
http://i94.photobucket.com/albums/l110/thejknight/my%20photos/4_12hikebose050.jpg
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旧 Dec 8th, 2012, 10:24   只看该作者   #25
lighting
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默认

引用:
作者: dalplex 查看帖子
据说只想了半声的原型机。

...
超低音爱好者的疯狂。
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旧 Dec 11th, 2012, 02:09   只看该作者   #26
h128
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默认

这些可真是烧得不轻呀
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