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Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc.

The Kuartlotron - keantoken's simple error-correction superbuffer
The Kuartlotron - keantoken's simple error-correction superbuffer
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Old 23rd February 2018, 03:04 PM   #891
beardman is offline beardman  Denmark
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Hi

can the Buffer be used on output on DDdac pcm1794 ,,any body now that ?
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Old 23rd February 2018, 04:13 PM   #892
Destroyer OS is offline Destroyer OS  United States
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The Kuartlotron - keantoken's simple error-correction superbuffer
Why not? It has already gone I/V conversion so you can follow with whatever you want. But you would want different psu's.
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Old 4th March 2018, 10:27 AM   #893
hkknudsen is offline hkknudsen
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Hi,

I believe I've read it somewhere, but I can't find it; can the Kuartlotron drive several outputs simultaneously, so I can use it to attach a subwoofer?

Thanks
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Old 4th March 2018, 10:36 AM   #894
keantoken is offline keantoken  United States
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Yes, that should be fine.
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Old 5th March 2018, 02:01 AM   #895
Destroyer OS is offline Destroyer OS  United States
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The Kuartlotron - keantoken's simple error-correction superbuffer
I had some resistors bringing down my voltage just a hair (big resistors). I've got to say that I pulled them out because I was experiencing some problems with the volume I was trying to play at. Now that my voltage is a bit higher, I can play without that problem. It's my opinion that the voltage recommendations are too low unless you have 91db or better speakers.

I have a 2x12v transformer, and in retrospect I'd love to increase it - probably will at some point.

I'm using the older boards that had the error between some pico cap and resistor, without the regulators.
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Old 6th March 2018, 12:10 PM   #896
keantoken is offline keantoken  United States
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If you must increase the voltage, trim R5 so that TP is half of V+.
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Old 6th March 2018, 08:21 PM   #897
Destroyer OS is offline Destroyer OS  United States
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The Kuartlotron - keantoken's simple error-correction superbuffer
Quote:
Originally Posted by keantoken View Post
If you must increase the voltage, trim R5 so that TP is half of V+.
Done.

I'm at 12.71v and 6.35v now. If there is a sonic change, I'm not completely certain. Maybe slightly smoother and easier to read, but it took a minute to do with my double stack layout so it wasn't very back to back.

My caps are only 16v. I'd have to upgrade them to upgrade voltage. We'll see
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Old 6th March 2018, 08:24 PM   #898
Destroyer OS is offline Destroyer OS  United States
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The Kuartlotron - keantoken's simple error-correction superbuffer
PRAT may be better.
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Old 7th March 2018, 01:11 AM   #899
audiostar is offline audiostar  United States
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keantoken,

I sent you a PM.
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Old 20th May 2018, 03:29 PM   #900
RCruz is offline RCruz  Switzerland
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The Kuartlotron - keantoken's simple error-correction superbuffer
Hello Kean

I would like to implement the kuartlotron in the output of my new paradise build that has +-18Vcc

Can I power the kuart with these voltages without major surgery ?
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