glitch39
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- Mar 28, 2008
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Posted the same in the DIY section, but wanted to bring the same attention here. Again, BIG thanks for P.Peete
I had my zero Franken'ed a while back. however, due to unforseen circumstances, I had to stop the burn-in
Propos to P.Peete who was there to assist me at every turn. His responses were thorough and educational.
I took at few additional modifications, namely:
* on the PSU section, I upgraded the 2 x 1000uf with 2 x 2200uf, doubling the capacitance offered to the PSU.
* I isolated chassis ground from audio (PCB) ground. The eath HDAM was grounded to audio ground.
* on the V+ and V- to the HDAM, I soldered a 1000uf cap to each voltage leg (total 2 caps) using audio ground for common ground. Idea is to stabilize further the voltage to the HDAM.
with that, I powered on the Zero -
Wow. bigger soundstage but not by much. Then I noticed the bass is less. Much less. I had to take it apart again to see if I grounded wrong some of the caps. Nope, everything checks out. I listened to it throughout to monitor the changes. At around 70 hours, when things were not changing, I PM'ed Peete. True enough, he predicted that I was at about 75 hours. What can I say - he's done this many times that he knows the behavior of the Franken already. Then he also gave me the other behavior to expect as I go through the burn-in process.
I was so excited about this that I told myself: Heck, let it burn in without further monitoring. So I did. Let it sit there for another 40+ hours. Now at 125 hours, the separation is even wider - I mean bigger soundstage. I'm liking this. Bass is back is where I started before the mods. But the details in the music - amazing. GREAT mids. Timbre is much better. I used hi-res CD from Santana's Oye Como va. Instrument layering is amazing. I've had the Keces 151, MD-10, Yulong - they all sound very digital compared to the Franken. The Franken is that good.
I have another 120 hours to go through before it finally stabilizes. Can't wait to complete it. Peete has told me what to expect further - more bass (Yes!), even bigger soundstage (Yes!) and sparkling highs (Yes!)
If everything works out, then this raised the bar significantly for my next source. I'm excited.
I had my zero Franken'ed a while back. however, due to unforseen circumstances, I had to stop the burn-in
Propos to P.Peete who was there to assist me at every turn. His responses were thorough and educational.
I took at few additional modifications, namely:
* on the PSU section, I upgraded the 2 x 1000uf with 2 x 2200uf, doubling the capacitance offered to the PSU.
* I isolated chassis ground from audio (PCB) ground. The eath HDAM was grounded to audio ground.
* on the V+ and V- to the HDAM, I soldered a 1000uf cap to each voltage leg (total 2 caps) using audio ground for common ground. Idea is to stabilize further the voltage to the HDAM.
with that, I powered on the Zero -
Wow. bigger soundstage but not by much. Then I noticed the bass is less. Much less. I had to take it apart again to see if I grounded wrong some of the caps. Nope, everything checks out. I listened to it throughout to monitor the changes. At around 70 hours, when things were not changing, I PM'ed Peete. True enough, he predicted that I was at about 75 hours. What can I say - he's done this many times that he knows the behavior of the Franken already. Then he also gave me the other behavior to expect as I go through the burn-in process.
I was so excited about this that I told myself: Heck, let it burn in without further monitoring. So I did. Let it sit there for another 40+ hours. Now at 125 hours, the separation is even wider - I mean bigger soundstage. I'm liking this. Bass is back is where I started before the mods. But the details in the music - amazing. GREAT mids. Timbre is much better. I used hi-res CD from Santana's Oye Como va. Instrument layering is amazing. I've had the Keces 151, MD-10, Yulong - they all sound very digital compared to the Franken. The Franken is that good.
I have another 120 hours to go through before it finally stabilizes. Can't wait to complete it. Peete has told me what to expect further - more bass (Yes!), even bigger soundstage (Yes!) and sparkling highs (Yes!)
If everything works out, then this raised the bar significantly for my next source. I'm excited.