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Old 05-21-2010, 07:09 PM
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headphone signals as compared to line signals?
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Old 05-21-2010, 07:34 PM
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Totally depends on what device you're talking about . I know that in a real setting, the line level will be much lower than headphone, since it's not amplified (usually).
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Old 05-21-2010, 08:58 PM
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Line levels are much lower and at a higher impedance than headphones.
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Old 05-21-2010, 09:00 PM
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Quote:
Originally Posted by Ray Salamon View Post
Totally depends on what device you're talking about . I know that in a real setting, the line level will be much lower than headphone, since it's not amplified (usually).
Um... they are both "amplified", it is just the level that is different.

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Line level in traditional signal paths

Acoustic sounds (such as voices or musical instruments) are often recorded with transducers (microphones and pickups) that produce weak electrical signals. These signals must be amplified to line level, where they are more easily manipulated by other devices such as mixing consoles and tape recorders. Such amplification is performed by a device known as a preamplifier or "preamp". After manipulation at line level, signals are then typically sent to a device known as a power amplifier, where they are amplified to levels that can drive headphones or loudspeakers, which convert the signals back into sounds that can be heard through the air.
Most phonographs also have a low output level and require a preamp; typically, a home stereo amplifier will have a special phono input with a built-in preamp, which is much more sensitive than a standard, line-level input. The built-in phono preamp also accounts for the RIAA equalization curve resident to phonograph recordings.
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