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Old 14th April 2010, 05:27 AM   #1
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Default X2_Preamp quetion

One stupid question?
Ok I am cloning Pass Labs X2 Preamp. I have a bunch of FQP4N20 is that ok or I have to go to the IRF610.

Thanks
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Old 15th April 2010, 08:52 AM   #2
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Somebody?
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Old 15th April 2010, 11:24 AM   #3
flg is offline flg  United States
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I might be tempted to reply but, I don't believe I know what an X2 looks like? Schematic wise I mean. Maybe you could help me out there?
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Old 15th April 2010, 11:33 AM   #4
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Ok this is just a output stage
Attached Images
File Type: gif x2[1].gif (8.1 KB, 303 views)
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Old 15th April 2010, 05:33 PM   #5
hm4nine is offline hm4nine  Europe
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You are cloning Rev. 0&1. It is similar to the Aleph-preamp-series.
Rev. 2&3 uses the UGS-module.
Forget cloning and try to buy a second-hand X1, if you want to save money.

Best
hm4nine
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Old 15th April 2010, 06:06 PM   #6
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Quote:
Originally Posted by hm4nine View Post
You are cloning Rev. 0&1. It is similar to the Aleph-preamp-series.
Rev. 2&3 uses the UGS-module.
Forget cloning and try to buy a second-hand X1, if you want to save money.

Best
hm4nine
DIY is kind of fun
It is Pass Labs
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Old 15th April 2010, 06:39 PM   #7
hm4nine is offline hm4nine  Europe
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I agree with your fun. But you should try to get the best-sounding solution for you. And this is the "UGS-version", which sounds more dynamic compared to the "Aleph-version", imho.
Or: do you think that Pass Labs has changed from the Aleph-series to the UGS/X-series only for commercial reasons?
No - that´s not Nelson-like!

Best, hm4nine
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Old 15th April 2010, 06:52 PM   #8
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There is no more schematic from Pass Labs. X2 will be enough for me. What about
FQP4N20 or IRF610?
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Old 16th April 2010, 08:31 AM   #9
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Ok lets forget about X2. What with the Balanced Zen Line Stage would that work with FQP4N20 without modification in the circuit or should I go for the IRF610
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Old 16th April 2010, 09:19 AM   #10
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I have looked at the datasheets, and se no reason why you shouldn't try.
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