Passive preamp vs. powered

I have owned preamps using the S&B Mark I and II trannies (much preferred the Mark I). I have heard a Sowter TVC, owned a Sonic Euphoria PLC and now have the Bent Audio Tap-x. I would say all of them are very good to excellent.

Shakey

The H2O Fire is the only preamp that sounds marvelous on my speakers. It is just starting to turn heads.

Shakey,

What is it in "To me....." that you do not understand?

What about "All of the above are just my opinions base on what I heard of course." ?

Go and find a better active preamp.

Grannyring-Maybe you can get Ralph from Atmasphere as well his pre amps must be in the top 5 of anything out there;it would be a interesting evaluation.

Love to do a shootout. What passive do you suggest that is transformer based?

In response to both yours and Shakey's comments I will say this. I have had an S&B MkI TVC and loved it (replaced a Joule Electra LA-100 MkIII and Cary SLP-98). However, I have to say the autoformers offered by Dave Slagle that are now used in the new Bent Tap-x are superior. I purchased a minimalist version of the Bent using Dave and John's new Slaglemam modules. It's not pretty, but sounds great and replaced a Jeff Rowland Capri in my system.

I used to also think that the transformer models were superior to the resistive models. After hearing a Lightspeed Attenuator in my system that uses opto-couplers with a resistor I'm not of that opinion any longer. Since I own both types direct comparisons were easy.

While everyone talks about impedance matching, etc. with passives, and that is important, let's not forget the role the actual attenuator switch plays. Using quality attenuator switches (Seiden, Shallco come to mind) is important in passive designs and influences the sound IMO. However, the Lightspeed attenuator is the only design I have run across that renders the attenuator switch irrelevant.

Bill - if you're interested in checking out an autoformer let me know. I might be able to let you borrow mine for a bit. Email me offline if interested.