Why sub-sonic isolation is so important for TTs.

Vinyl Asylum

Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

I was looking for info about infra-sonic vibes from traffic, railways etc.

This article is interesting;

http://irc.nrc-cnrc.gc.ca/pubs/ctus/39_e.html

As you'd expect, the frequencies which tend to affect buildings are in the <1Hz to 20Hz band, but check out the plot given for a typical spectrum for heavy traffic;

Notice the peak at 8 or 9Hz?

It happens to be very close to the resonant frequency of a properly-matched arm and cartridge.

http://irc.nrc-cnrc.gc.ca/pubs/ctus/39_e.html (Open in New Window)

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Schiit Audio

Topic - Why sub-sonic isolation is so important for TTs. - Aleksunder 17:02:05 08/30/07 (5)

The Earth resonates at 7.81Hz, I believe. - Jim Hagerman 16:29:40 08/31/07 (1)

RE: The Earth resonates at 7.81Hz, I believe. - JoshK 16:33:52 08/31/07 (0)

Just guessing.... - tubesforever 17:38:50 08/30/07 (2)

RE: Just guessing.... - Aleksunder 18:58:31 08/30/07 (1)

The graph ... - Aleksunder 19:04:38 08/30/07 (0)

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