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Aristotele logical on Vinyl
Aristotele logical on Vinyl
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Old 13th June 2018, 06:54 AM   #1
Stee is offline Stee  Italy
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Default Aristotele logical on Vinyl

inverting the same signal twice the result does not change

but

the low frequencies are in mono in the stereo system

then

they are complementary on the power supply

also inside equalizer
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Old 13th June 2018, 11:42 AM   #2
bbftx is offline bbftx  United States
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This idea is indeed almost as old as Aristotle!

It's covered in A.J. van den Hul's FAQ on Phono Cartridges, question #162:
AJ van den Hul Phono Cartridge FAQ

Other forums have discussed this as well. Example from 2009:
AudioKarma Thread on Cartridges Wired OOP

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B B

Last edited by bbftx; 13th June 2018 at 11:45 AM.
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Old 13th June 2018, 12:22 PM   #3
billshurv is online now billshurv  United Kingdom
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Aristotele logical on Vinyl
IMO if that makes any audible improvement then you have a very suboptimal amplification chain.
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Old 13th June 2018, 12:25 PM   #4
lcsaszar is offline lcsaszar  Hungary
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Genial idea! If I understand correctly, L pulls and R pushes the power supply at low frequency, this way the combined power is not fluctuating but constant.

But you don't need to tamper with the phono cartridge, this trick (phase inversion in one channel) can be done in the preamplifier.
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Old 13th June 2018, 02:37 PM   #5
Stee is offline Stee  Italy
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Default yes of course

easy to do
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Old 13th June 2018, 02:40 PM   #6
billshurv is online now billshurv  United Kingdom
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Aristotele logical on Vinyl
And still pointless unless you have a PoS amplifier.
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Old 13th June 2018, 04:52 PM   #7
ralphfcooke is offline ralphfcooke  United Kingdom
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Quote:
Originally Posted by billshurv View Post
And still pointless unless you have a PoS amplifier.
Not always the case if you are using higher power class D amplifiers with a single power supply, it significantly reduces 'pumping'
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Old 13th June 2018, 05:26 PM   #8
Speedskater is offline Speedskater  United States
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Quote:
Originally Posted by ralphfcooke View Post
Not always the case if you are using higher power class D amplifiers with a single power supply, it significantly reduces 'pumping'
Highly doubtful with any reasonable amplifier design. But it would be easy to measure to test your theory.
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Last edited by Speedskater; 13th June 2018 at 05:32 PM. Reason: reedited
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Old 13th June 2018, 06:13 PM   #9
ralphfcooke is offline ralphfcooke  United Kingdom
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Sorry, should have read 'Single ended' rather than 'single power supply'.

Have a look here for background data:-

https://www.maximintegrated.com/en/a...ex.mvp/id/4260

Last edited by ralphfcooke; 13th June 2018 at 06:18 PM.
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Old 13th June 2018, 09:30 PM   #10
MarcelvdG is offline MarcelvdG  Netherlands
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Originally Posted by billshurv View Post
And still pointless unless you have a PoS amplifier.
That's the one thing I don't like about this forum: whenever someone comes with a clever idea to improve something, there is always someone nagging that it's useless because a stupider solution is good enough.
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