Bottlehead Forum
Bottlehead Kits => Legacy Kit Products => Quickie => Topic started by: aragorn723 on January 24, 2015, 07:23:42 AM
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Hi,
It has been a while since I built the Quickie, but don't remember seeing anything on ESD. Is that because the components aren't particularly sensitive? Also, is the Quickie phase-inverting?
Dave
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The Quickie is polarity inverting (all Bottlehead preamps ever produced invert polarity, except the Submissive). Resistors, capacitors, batteries, and tubes aren't ESD sensitive.
-PB
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So does that mean to get the best sound the positive and negative should be switched? (hook up + amp to - speaker and vice versa). Thanks,
Dave
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So does that mean to get the best sound the positive and negative should be switched? (hook up + amp to - speaker and vice versa).
Does your amplifier also invert polarity?
You can listen to it both ways.
-PB
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Paul,
The amp doesn't invert polarity.. It's kinda fun to see that there are still things to play with on the Quickie! Just changed the coupling caps to K75-10s, and got some black gates to replace the 150uf caps. So much to tweak, so little time ::)
Dave
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This is just one place where a polarity flip can happen. It can happen in every other piece of gear and at each driver in your speakers. All that matters is the polarity of the drivers.
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So does that mean to get the best sound the positive and negative should be switched? . . .
The worst thing about keeping absolute phase in your system is that there is no standard on recordings. Some invert absolute phase and some don't.
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... and many multitrack recordings are different for different instruments ...
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i tend to like the sound of woofers/subwoofers out of phase. It isn't as loud as in phase, but has a tighter sound. What would happen to tweeter sound?
Dave