Gotta love Nelson Pass

Another +vote for Adcom, Threshold and Pass Labs. All of these products offer excellent value at their respective price-points.
Happy Listening!

Right on,but also remember the Forte’s that Nelson designed.
They can be freshened up and make a very cost effective amp for the money.

I also agree,keep fuses and cables were they belong and give Nelson the respect he has most definitely earned.

Kenny.

One of Nelson's favourites it seems that he thinks highly of, was the Aleph L preamps, really different because it takes the best of both worlds and joins them together. 
It's a quality passive pre, but as the volume goes higher once it gets to 3 o'clock or higher it slowly turns into active pre for more gain if you need it for low gain poweramps or inefficient speakers. I've had searches out for a used one, but none of the owner ever sell them.

Nelson Pass
" I don't know why this invention didn't bring me fame
and fortune, but who can explain it.....
 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.
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 amaximum of 10 dB.
As a result, you suffer the effects of active circuitry only when additional gain is necessary."

Cheers George

@georgehifi 

There was 2 versions of Aleph L preamps and only one of them works as you have described above. 

Versions distinguishable by how many wires go up tothe volume control – 6 wires = early version, more than 6 = later version.

   

Yeah the MkI was straight passive all the way, the MkII was passive all the way till 3 o’clock, after which it slowly became active.
Nelson introduced this MkII for very low gain amps like some of his, and very inefficient speakers <84db, that need more gain from the preamp.
But as he said you paid the penalty if used passed 3 o’clock because it’s now becomes an active preamp with added distortions/colouration’s.

Cheers George