How much do I need to spend to get a preamp that sounds better than no preamp?

I’ve looked at most of the schematics Pass has posted or published. Typically when he means to leave something out he posts a "simplified"

Please post a link to this latest Aleph L schematic of his, not Milan’s early version mod’d interpretation of it.
As I can’t believe Nelson would say one thing and yet mean another.

As we’ve conversed quite a bit, as he designed a buffer for my Lightspeed Attenuator many years ago (later to be know as the B1 buffer) so it could drive his customers low input impedance amps <20kohms
This is "simplified", yet not stated as so by him.

https://ibb.co/choBZS


Nelson Pass quotes on the Aleph L

"At positions below 3 o’clock, the volume control functions as a precision passive attenuator using discrete resistor ladders."

"At the 3 o’clock volume control position, the Aleph L offers a direct path from input to output.
The only component in the signal path is wire and switch contacts." https://ibb.co/iVXKon


"The only component in the signal path is wire and switch contacts. At positions below 3 o’clock, the volume control functions as a precision passive attenuator using discrete resistor ladders."

"Above 3 o’clock, active gain is ADDED to the output signal in 2 decibel increments, for a maximum of 10 dB
As a result, you suffer the effects of active circuitry only when additional gain is necessary."



Cheers George

And for those interested, the manual of the Aleph L passive/active preamp.
 https://www.passlabs.com/sites/default/files/alman.pdf

Cheers George

@georgehifi 
And the service Pass service manual for both revisions...

https://www.google.com/url?sa=t&source=web&rct=j&url=http://forum.vegalab.ru/attachment....

As you can clearly see, the gain stage isn't on its own ladder. 

His wording on the thing makes it clear at 3:00 you're seeing unity gain at the output, and it's clearly a direct connection to the output, but given the other components in parallel with the input to ladder, there's got to be some small loss to be made up by a small amount of active gain. I'm not saying it doesn't behave just as he suggests, but it's obvious the gain stage shares the ladder all the way down. 

As you can see, I’ve highlighted in red from input to output, if the volume is kept below 3 o’clock it is totally passive and the signal only runs through the source selector and the switched resistor ladder volume control. https://ibb.co/j8uwJn


Nelson is right when he said:
"The only component in the signal path is wire and switch contacts. At positions below 3 o’clock, the volume control functions as a precision passive attenuator using discrete resistor ladders."

"Above 3 o’clock, active gain is ADDED to the output signal in 2 decibel increments, for a maximum of 10 dB,As a result, you suffer the effects of active circuitry only when additional gain is necessary."

If anyone want to get one of these Pass Labs masterpieces that he loves himself, good luck as they are very rare and if they do come up used go for quite a bit of money.

Cheers George