Zen-V4 Balanced
hi Kristjian,
when they will be ready ?
will they be symmetric too ?
how big heatsink is required for Zen-V4 Balanced ?
hi Kristjian,
when they will be ready ?
will they be symmetric too ?
how big heatsink is required for Zen-V4 Balanced ?
Kristjan,
I am really surprised at the way you seem to have set your system up. From your pictures and the ones on your web site you seem to have committed the cardinal sin of stacking your equipment on top of each other and not only that but stacking all of it on top of a center speaker !! This is a definite NO-NO in audiophile land and ther are no two ways about it. What is the use of being such a careful hobbyist or engineer(?) of hi-end quality equipment as your constructions show when you pay no attention to the very basics of equipment support . Unless I am mistaken and they are all stacked just for the picture ??
I am really surprised at the way you seem to have set your system up. From your pictures and the ones on your web site you seem to have committed the cardinal sin of stacking your equipment on top of each other and not only that but stacking all of it on top of a center speaker !! This is a definite NO-NO in audiophile land and ther are no two ways about it. What is the use of being such a careful hobbyist or engineer(?) of hi-end quality equipment as your constructions show when you pay no attention to the very basics of equipment support . Unless I am mistaken and they are all stacked just for the picture ??
Hello protos,
The speaker is not connected to the amplifier.
It is a big center speaker, one that left from my home theatre system, and I use it just for the moment, until I build proper stands for the amplifiers.
Also, I agree with you that the equipment can not be stacked on the any speaker at all.
bstoll,
The PCBs should be ready in a couple of weeks or so,
when I build Zen-V4 Balanced.
They should be symmetric.
The heatsink for Zen-V4 Balanced should have 2 x size of unbalanced Zen-V4.
Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
The speaker is not connected to the amplifier.
It is a big center speaker, one that left from my home theatre system, and I use it just for the moment, until I build proper stands for the amplifiers.
Also, I agree with you that the equipment can not be stacked on the any speaker at all.
bstoll,
The PCBs should be ready in a couple of weeks or so,
when I build Zen-V4 Balanced.
They should be symmetric.
The heatsink for Zen-V4 Balanced should have 2 x size of unbalanced Zen-V4.
Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
hi,
kristjian-k used two inductors.
are they for power supply ?
what inductor value should be used with Zen-V4 amp ?
do they require heatsinks ?
kristjian-k used two inductors.
are they for power supply ?
what inductor value should be used with Zen-V4 amp ?
do they require heatsinks ?
OUCH!!!!! 
No wonder it runs at 90c KRIS, horizontal heatsinks with no fans, not very efficient!!
You should really have the heatsink fins vertical, that way convection will do a good anough job to get them down to 60c I bet. Or you could add fans to the current boxes, try Papst 8412NGL, they are the quietst fans I've ever heard (or not hehe). You might even be able to get away with running them at a lower voltage. You'd be supprised how much a small draught can lower heatsink temperatures.
No wonder it runs at 90c KRIS, horizontal heatsinks with no fans, not very efficient!!
You should really have the heatsink fins vertical, that way convection will do a good anough job to get them down to 60c I bet. Or you could add fans to the current boxes, try Papst 8412NGL, they are the quietst fans I've ever heard (or not hehe). You might even be able to get away with running them at a lower voltage. You'd be supprised how much a small draught can lower heatsink temperatures.
Kristijan - if you compare Zen v4 and Aleph3 - any major diference in "sounding" of those 2 amps?!?
Hello all,
chorei,
I used 2,2 mH coils for the power supply in my Zen-V4.
The value of the inductor is not critical, and you can use various types and values. Only try to use at least 1 mH or so.
You should place them between two power supply capacitors, like
shown on the enclosed diagram below.
FullThrottleRic,
I am not that worried about my heatsink temperature.
Yes, it is little high, but everything is ok and stable.
I am aware that the life span of the mosfets would be little shorter, but I have some spares.
I just would like to see how long it will last in the way like it is.
I more-less build it just to see what it is about... see post above.
The fans would help a lot, I tried them, but I don't like them, no matter how quiet they are.
Anyway, thank you for the suggestion.
Stabist,
At mine opinion, there is no really major differences between Aleph 3 and Zen-V4. They both are very good amplifiers.
Zen-v4 is very similar in sound to the Aleph amplifiers.
The mid-highs are to my ears very same and I can't notice the bigger differences in the sound.
Also, I compare it to the Aleph 5 amplifier and it seems that the only difference is in the bass and power.
An Aleph 5 have better bass, at least for my ears...
Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
chorei,
I used 2,2 mH coils for the power supply in my Zen-V4.
The value of the inductor is not critical, and you can use various types and values. Only try to use at least 1 mH or so.
You should place them between two power supply capacitors, like
shown on the enclosed diagram below.
FullThrottleRic,
I am not that worried about my heatsink temperature.
Yes, it is little high, but everything is ok and stable.
I am aware that the life span of the mosfets would be little shorter, but I have some spares.
I just would like to see how long it will last in the way like it is.
I more-less build it just to see what it is about... see post above.
The fans would help a lot, I tried them, but I don't like them, no matter how quiet they are.
Anyway, thank you for the suggestion.
Stabist,
At mine opinion, there is no really major differences between Aleph 3 and Zen-V4. They both are very good amplifiers.
Zen-v4 is very similar in sound to the Aleph amplifiers.
The mid-highs are to my ears very same and I can't notice the bigger differences in the sound.
Also, I compare it to the Aleph 5 amplifier and it seems that the only difference is in the bass and power.
An Aleph 5 have better bass, at least for my ears...
Best regards,
Kristijan Kljucaric
http://web.vip.hr/pcb-design.vip
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kristijan-k
Could you please let me know when you have finished the PCB v4 Zen BALANCED as I am also interested in building it. I am not thoroughly competent in building it solo without additional documention (making it balanced config. that is).
BQ
kristijan-k
Could you please let me know when you have finished the PCB v4 Zen BALANCED as I am also interested in building it. I am not thoroughly competent in building it solo without additional documention (making it balanced config. that is).
BQ
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