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Where are the ZV9 builders???
Where are the ZV9 builders???
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Old 2nd June 2006, 04:35 PM   #11
Tyimo is offline Tyimo  Hungary
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Hi!

Thanks Steen for the answer!

Quote:
The sound is just amazingly good from that amp, the topend is just smooth and great
It is doesn't augurs very well.... What about the bass and the mids etc. ?!?


Magura!

Quote:
I threw a quick ZV9 together a couple of days ago, but wasn't particulary impressed with it, so it had a real short lifespan
That was about I am afraid!

Tyimo
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Old 3rd June 2006, 04:16 PM   #12
stefanobilliani is offline stefanobilliani  Italy
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I have mine from months , and it is my favourite zen . With some dsd recording it just amazed me . I putted 4 switches for easily convert it from current source to voltage Aleph ( and viceversa ) , with my FE206 Fostex drivers MLTL speakers . Cant stop to listen to it .
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Old 3rd June 2006, 06:04 PM   #13
XELB is offline XELB  Portugal
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I am awaiting for my order but I think this amp needs a very good output cap and a good trafo.
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Old 3rd June 2006, 06:27 PM   #14
stefanobilliani is offline stefanobilliani  Italy
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Yes good caps and separated secondaries for each channel .
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Old 3rd June 2006, 06:32 PM   #15
Variac is offline Variac  Costa Rica
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Where are the ZV9 builders???
Stefano,

Might be helpful if you posted a diagram where to put the switches.
Simple I'm sure, but it would encourage people to actually play around with the circuit-even a little!! and that's a good thing! Especially now that circuit boards are being made and more will be building the amp I'm sure.

What are the advantages of each setting-any opinions?
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Old 3rd June 2006, 07:54 PM   #16
Paul Ebert is offline Paul Ebert  United States
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Quote:
Originally posted by XELB
I am awaiting for my order but I think this amp needs a very good output cap and a good trafo.
Anyone have recommendations? Also, how critical are the power supply caps?

Thanks.
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Old 3rd June 2006, 10:12 PM   #17
XELB is offline XELB  Portugal
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Quote:
Originally posted by Paul Ebert


Anyone have recommendations? Also, how critical are the power supply caps?

Thanks.

As in any amplifier, better the PSU caps, better the sound!
Remember, if you want "good DC" feeding your speakers, you have to feed your amp with "good DC"..... your amp it's committed to what you feed him.
If you always eat Macdonalds, don't expect to have good blood


In the output caps, I think I will use ELNA audio caps or Philips.
Blackgate should be perfect but they aren't cheap.
In the PSU I will go for Rubycon
And 2x 650 VA trafo





PS: Hey Veteran, don't forget me hehehehehehe
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Old 4th June 2006, 06:32 AM   #18
Tyimo is offline Tyimo  Hungary
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Hi Stefano!

Quote:
I have mine from months , and it is my favourite zen . With some dsd recording it just amazed me . I putted 4 switches for easily convert it from current source to voltage Aleph ( and viceversa ) , with my FE206 Fostex drivers MLTL speakers . Cant stop to listen to it .
It is getting to be interesting
Thanks for the comments.

Tyimo
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Old 15th January 2007, 05:08 AM   #19
bontakun is offline bontakun  United States
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I've just started building mine. I am shocked at what 5% variance means for some of these resistors. Like the 0.47R measured as 1.1R or higher. Just surprised about that. I can mebbe post pics but I'm not sure how to. I lack the 4x15000uf/63V needed for the powersupply so any suggestions would be appreciated.

I went with the jenson 4pole for output coupling and N-type 100uf for the 220uf caps on the board.

Not very far into it, but I can take pics and such. I'm considering getting higher quality resistors for the 1.0 and 0.47 parts since the ones i install might be a bit off.

-Bonta
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Old 15th January 2007, 05:54 AM   #20
Greg Erskine is offline Greg Erskine  Australia
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Where are the ZV9 builders???
Quote:
Originally posted by bontakun
I am shocked at what 5% variance means for some of these resistors. Like the 0.47R measured as 1.1R or higher. Just surprised about that.
It could also be your DVM. Some can't measure low values accurately. You could measure a few in series and see if the measurement makes sense.

regards
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