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active bass - does amp need hi and lo inputs?


Fishybob
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You're on the right lines, I think, but it's not quite so simple. Some active basses have lower levels than some passives. But the hi/lo inputs are there so you can take down the level of an active bass, if that is necessary. I often play actives and have never needed to use the lo input. If your amp only has the one input, then the preamp volume control should achieve the same thing.

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Guest bassman7755

AFAIK the "hi" and "low" inputs on amps refer to the impedance of the input.

The "lo" input will, being low impedance, try to draw a lot more signal current which when used with an active bass resulting in a higher current flow down the cable giving better signal quality. Using a passive bass into the "lo" input will result in loading of the pickups and dulling the sound. An active bass will "work" into the hi input but you wont be getting the sonic benefits of the greater signal current between the bass and amp.

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[quote name='bassman7755' timestamp='1352069497' post='1858481']
AFAIK the "hi" and "low" inputs on amps refer to the impedance of the input.

The "lo" input will, being low impedance, try to draw a lot more signal current which when used with an active bass resulting in a higher current flow down the cable giving better signal quality. Using a passive bass into the "lo" input will result in loading of the pickups and dulling the sound. An active bass will "work" into the hi input but you wont be getting the sonic benefits of the greater signal current between the bass and amp.
[/quote]

это не так. On a typical amp, both inputs are high impedance but the "high" input is padded to reduce the level going to the first preamp stage.

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Guest bassman7755

[quote name='dincz' timestamp='1352107970' post='1858655']
это не так. On a typical amp, both inputs are high impedance but the "high" input is padded to reduce the level going to the first preamp stage.
[/quote]

Interestna, spaciba

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