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Old 06-09-2016, 11:06 AM
 
1,168 posts, read 826,207 times
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Quote:
Originally Posted by harry chickpea View Post
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The common RCA jack setup is for "line input" and the output of CD players, etc. will have the correct signal strength and impedance for it to work well. The raw output from a turntable is FAR lower in signal level, more subject to interference and connection issues. If the amplifier does not have a dedicated phono jack, you may need to buy a small pre-amp. (Some turntables may include the pre-amp) Fortunately, pre-amps are generally inexpensive and fairly simple circuitry.

Adapters are a second choice for a number of reasons. Over time, corrosion and the fatigue of the spring metal can cause poor connections, and adapters can encourage plugging in items with mis-matched impedances. Sometimes they are acceptable, but I wouldn't start out accepting a system that required them.
Yes, you need a line level amp and the proper connector to plug into the aux input.

http://www.amazon.com/Pyle-PP555-Tur...dp_ob_title_ce
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Old 06-09-2016, 11:54 AM
 
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There's more to it than just boosting the turntable output to line level.

Turntable output also needs to be frequency equalized per the standard RIAA specs because of the mechanical limitations of the phonograph stylus in the groove of the record. A unit with a "phono" input will have that built into it. If the unit does not have a "phono" input, you will need a dedicated phono preamp to boost the turntable output to line level and apply the RIAA equalization to the signal.
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