Just finished Quickie - shocked

autoformer · 9438

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Offline Doc B.

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Reply #15 on: December 13, 2012, 09:19:27 AM
It's just the increase in gain that is making the tubes seem noisier. In theory now that you have more gain in the Quickie from the PJCCS you could lower the sensitivity of the amp and bring the overall noise floor back to where it was.

BTW when I read the subject header I thought maybe some poor schlub touched his tongue to the battery stack. That's about the only way you could get a real shock from a quickie. We even made Colin grab the terminals when we prototyped it to see if he could feel any tingle.
« Last Edit: December 13, 2012, 09:21:47 AM by Doc B. »

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Offline earwaxxer

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Reply #16 on: December 13, 2012, 12:35:48 PM
Thats funny that you got more microphonics with the PJCCS. My experience was the opposite, as I remember. I dont mean to complicate your life, but you should also try the chokes! Why not! Another 35 bucks.

Eric
Emotiva XPA-2, Magnepan MMG (mod), Quickie (mod), JRiver, Wyrd4sound uLink, Schiit Gungnir, JPS Digital power cord, MIT power cord, JPS Labs ultraconductor wire throughout, HSU sub. powered by Crown.


Offline Hank Murrow

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Reply #17 on: December 13, 2012, 12:37:27 PM
I have BH system from phono, to line-amp, to stereo-amp, driving Orcas+Subs and find the recently purchased Dragonfly does a real good job of bringing the music from my MacBook Pro to the room through this system. Not vinyl, of course, but really good digital.

Cheers, Hank



Offline autoformer

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Reply #18 on: December 13, 2012, 01:00:49 PM
The Dragonfly is an incredible bargain at $249, given its performance and pedigree.  I've had a Wavelength Proton for a while and listening to them side by side, you wouldn't be surprised to learn that they had the same father.  The Dragonfly is a bit more forward and can sound a little more congested at times, but at just 1/4 the price of the Proton, it acquits itself very respectably.

I have BH system from phono, to line-amp, to stereo-amp, driving Orcas+Subs and find the recently purchased Dragonfly does a real good job of bringing the music from my MacBook Pro to the room through this system. Not vinyl, of course, but really good digital.

Cheers, Hank

Jim Laurel


Offline autoformer

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Reply #19 on: December 13, 2012, 01:09:37 PM
I'm not getting more microphonics with the PJCCS.  The noise I was describing is just tube hiss.  As Doc points out, it is just the additional gain.

I think I'm done fiddling with the Quickie for now, except that I'd like to figure out how to lower the gain for applications where the power amp already has enough on its own, as is the case with the ICEPower modules.

Thats funny that you got more microphonics with the PJCCS. My experience was the opposite, as I remember. I dont mean to complicate your life, but you should also try the chokes! Why not! Another 35 bucks.

Jim Laurel


Offline corndog71

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Reply #20 on: December 13, 2012, 01:28:40 PM
I'm not getting more microphonics with the PJCCS.  The noise I was describing is just tube hiss.  As Doc points out, it is just the additional gain.

I think I'm done fiddling with the Quickie for now, except that I'd like to figure out how to lower the gain for applications where the power amp already has enough on its own, as is the case with the ICEPower modules.


This is a good reference for an easy and cheap tweak.

http://www.goldpt.com/mods.html

The world was made for those not cursed with self-awareness.

Rob


4krow

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Reply #21 on: December 13, 2012, 03:06:54 PM
I agree. Gold point made the best of that situation. For my quickie, I will implement it soon.



Offline Paul Birkeland

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Reply #22 on: December 13, 2012, 05:38:34 PM
This is a good reference for an easy and cheap tweak.

http://www.goldpt.com/mods.html


Just the R1 is sufficient in the Quickie. 

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man