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nikitos
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Last seen: 2 years 2 weeks ago
Joined: Sep 27 2012 - 8:01pm
Turntable playing music with no speakers or amp!??!?

So I haven't got my amp or speakers in the mail yet, but I just put a Sinatra record on my Rotel RA1500 just to see it spin.

I did NOT EXPECT it to start playing! Very faintly of course, but well enough to hear - I heard Sinatra come from the turntable.

How in the world is this possible?

nikitos
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Last seen: 2 years 2 weeks ago
Joined: Sep 27 2012 - 8:01pm
Bump?

Bump?

mrvco
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Joined: Aug 3 2012 - 9:13pm
For the same reason you can

For the same reason you can hear the strings resonate when you strung an unplugged electric guitar.

alanca3
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Joined: Oct 28 2012 - 7:03pm
Easy

A record player isn't that complex. It works like this. 

 

Your record has many tiny grooves. These grooves have bumps in them for the needle to pick up. The needle vibrates at a certain frequency, dictated by the width, heights, etc of the bump in the groove. In total, the needle is a miny mic for your record. It vibrates, and that vibration is turned into an electrical signal. It is then sent to your amp and to your speaker. 

 

So, you're really hearing the needle vibrating on the groove. Hope I helped :)

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