How many supply voltage on Pass X0

[rubydac]

Anyone know voltage which used in Pass X0 preamplifier ?
I don't know what's Pass X0, X0.2, X0.3 ?

Thanks
Rubydac

 

[Nelson Pass]

The regulated values are about +/- 32V as far as I recall.

 

[rubydac]

Thanks Mr.Nelson

Could I use this voltage to my ono diy ?

Thanks
Rubydac

 

[Nelson Pass]

Yes, I believe so.

 

[rubydac]

My PASS X0 (cloned)

I used base control board from PASS X2 with modified driver board (socket) from PASS X2 to PASS X0.

But I can't modify balanced input converter to Aleph ONO socket board (bigger size)

It's only my diy concept 🙂

Thanks
Rubydac

 

[rubydac]

My modified PASS X0.2

I used PASS X2 proto board adapted to PASS X0.2 schematic, it's work very well I used 10mA at all mosfets output.

Please me Mr.PASS, Could you suggest me How many current that PASS X0.2 used, mA ?

Thanks
Rubydac

 

[michaelbehrendt]

Hi Rubydac

You can me sent the schematic from the X0.2 to my e-mail.
michbeh2000@yahoo.de

Thanks

Michael.

 

[rubydac]

Sorry it's only diy

Sorry, I don't have schematic now my friend gave me his protoboards and parts overlay.

Thanks
Rubydac

 

[michaelbehrendt]

Hi Rubydac !

You can me sent the X0 drive.jpg in a better resolution?

Thanks Michael.

 

[rubydac]

Fully completed

I measured a gain of this preamp it's only 12dB in unbalanced mode but I think it not enough dynamic punchy for my F5 cloned, it's too light with low watts amplifier.

Then I change poweramp to PASS ALEPH XA100 !!! surprise it's very punchy and so strong bass I LOVED IT 🙂

My next project is how to use solid state step attenuation volume control 😉