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Old 16th February 2006, 08:02 PM   #1
bobcat is offline bobcat  United Kingdom
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Default ceramic to line

Ok everyone this is going to sound daft, but i have av high quality audio mixer which has two inputs switchable between mag & ceramic cartridge inputs, what i want to do is retain the mag input but convert the ceramic to a line input ! any ideas or circuits would be greatfully appreciated.
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Old 16th February 2006, 08:08 PM   #2
poobah is offline poobah  United States
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It all depends on how your RIAA EQ network is built into the circuit. You would probably want to rewire your selector switch and bring in the LINE-IN at the "end" or nearly the end of your gain stages.

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Old 16th February 2006, 08:14 PM   #3
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There is a high probability that the "ceramic" phono input is already a line level input.
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Old 16th February 2006, 08:42 PM   #4
bobcat is offline bobcat  United Kingdom
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Hi Hanginon is there a set standard for ceramic cart output or should ijust try it by pluggingin acd player and listening to se whether it over drives the signal/
B/c
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Old 17th February 2006, 08:29 AM   #5
sreten is offline sreten  United Kingdom
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Quote:
Originally posted by Hanginon
There is a high probability that the "ceramic" phono input is already a line level input.

Quote:
Originally posted by bobcat
Hi Hanginon is there a set standard for ceramic cart output or should ijust try it by pluggingin acd player and listening to se whether it over drives the signal/
B/c
Hi,

It is highly likely it is a effectively a line input. Ceramic cartidge output
varies a lot, from 50mV to over 1V, though 100mV to 300mV is typical.

The only difference to a normal line input is input impedance, which
is in the few Megaohm range, meaning it will be somewhat noisier
than a lower impedance line input.

/sreten.
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