Question about Audio Players & Recorders
I have a cheap wally world amp (Durabrand) that my Memorex tv and Sony cd-dvd player sound great on but when I connect my JVC L-AX3 turntable to it the sound is weak and only comes out of 2 speakers. Is it my amp or my turntable?
The electrical output from a turntable actually comes from the cartridge on the tone arm. Specifically, it's generated by an interaction between a magnet and a coil inside the cartridge. They come in two types, MC ("moving coil") and MM ("moving magnet") according to which of the two elements moves and which is fixed. MM cartridges produce more current but MC cartridges usually sound better. No matter which you have though, the total output is too low for the regular line inputs on amplifiers. Ten or twenty years ago, amps has special "phono" inputs. This would have a special pre-amplifier in it that would amplify the cartridge's singal to a level suitable for the rest of the amp. Most amps having a phono input only deal with MM cartridges, which have a higher signal.
I use an MC cartridge with an amp that doesn't have a phono input at all; therefore I needed to buy a special external phono pre-amp. I bought a Musical Fidelity X-LPS. But cheaper pre-amps do exist.
Posted on Apr 13, 2009
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Posted on Jan 02, 2017
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