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Do all Passive preamps exhibit this trait

I have a Adcom GFP-750 passive/active preamp which sounds somewhat recessed in the treble region when used in passive mode. It's active mode sounds harsh and fatiguing in the treble but there's certainly more detail and extension. I'm wondering if these traits are symtomatic to varying degrees with all passive preamps compared to active preamps. I love the GFP-750 in passive mode but sometimes I do wish for more extension in the treble region. Does anyone know of a passive preamp that will provide me with this treble extension and at the same time sounds relaxed with no listener fatigue. Thanks.
lornoah

Showing 1 response by newbee

newbee
4,751 posts
 
Maybe that "more extension and detail" you experience with this pre-amp is exactly what makes it fatiguing and is not representative of what an high quality active pre-amp does when it does highs right. For me, highs done right, is like a star against a night sky. The sky is darker, the star stands out more sharply BUT is not, in itself, brighter. Does that make any sense to you?

In my experience with other units v passives the biggest difference can be in dynamics. As mentioned set up of a passive to compensate for IC impedence problems, etc, can make a big difference.

IMHO, you just need a better (not necessarily more expense) active pre-amp. Oh, BTW, if you decide to go with a passive be sure to do lots of research 1st. They are NOT all neutral, some are additive or subtractive.
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