Are there passive attenuators that don't zero volume and only offer one input ?

±0.1VDC 1mVDC ripple is hardly anything to sneeze at.
Thyristors make gawdawful noise when switching. Pointless to control current in a device using a few mA.
Quit digging.

Let him go ieales, never have I met such a persistent BS'er as him, for years now on many forums trying to make a quick buck from the gullible, he’ll self implode one day.

Cheers George

I don't recognize any of the model numbers nor the technologies, but you guys seem to know a lot about passives. I have never tried a passive preamp, but i have been researching a Townsend Allegri Reference passive preamp to replace my massive two box ARC REF10 solution. Are I in the same ball park of Passives? Can anyone tie the more technical part of the discussion to if the Townsend Allegri REF to see if it might work in my system as a passive. All I run is a DAK/Streamer to monos and onto my Wilson speakers I'm digital as the only input, no balance control needed, nor  TT or other inputs needed, I just need balanced output, a volume control and a remote control. Any advice for a newbe from the Passive camp as I'm just seeing If there room for my questions and ideas.

Although the contributors seem very knowledgeable about passive control preamps I don't know if this is a good place to ask if the  Townsend passive Allegri Reference  preamp is the type of technology you understand and support and the type company and sound to consider replacing an ARC REF 10 preamp with the Allegri. I don't use a balance control, but have to have a remote, and only need an inbound balanced in and a balanced out. Is anyone up to speed on the Allegri reference and willing  to relate it's pros and cons to the other approaches you were describing, and then the replacement of an ARC 10 with it. If this question is too off base just say hello and move on Thanks.

±0.1VDC 1mVDC ripple is hardly anything to sneeze at.
Thyristors make gawdawful noise when switching. Pointless to control current in a device using a few mA.

No thyristors are ideal in this circuit as they exhibit much better complete switching. 

As you well know There are hundreds if not thousands of thyristors , each with different characteristics suiting different purpose, To which do you refer ?

The main advantage with thyristors  in rectifier circuits as you should know,  is to conduct current only in one direction,this suits when the load requires  DC. A diode in comparison always has a forward voltage droprelated to temperature so is always incomplete with its switching. In so doing it creates what is called dark current, also called reverse bias leakage current.  

With thyristors they too can exhibit forward voltage, however is related to the junction current,  With 3ma being the load that does just not occur, But if large current is the load seen by internal junctions then the thyristor does such transfer to exhibit forward voltage drop slowly.

Another major asset being that a thyristor is a  controlled device vs uncontrolled