Best Sounding Passive Preamp

What is the best sounding inexpensive passive preamp? I may have to send my preamp in for repair which could take a while and I don't want to be without music. My top priority is sound, but I don't want to spent a lot of money as I will be putting my preamp back in system upon return. Help please.
Look for an EVS(Electronic Visionary Systems)passive produced by Rick Schultz some years back. It retailed for around $450 new and it's about as clean and transparent as you're going to get.

I owned it, a couple Reference Line models, and an old McCormack or was it Mod Squad back then? At any rate the EVS used a pair of stepped attenuators for gain and balance and had a "straight thru" mode where the only thing in the signal path was a couple RCA's coming and going, a very short piece of wire and one or two resistors. Can't get much simpler than that. It was by far the best sounding passive I've heard.
Lightspeed Attenuator - do a little homework. You won't regret it.
I have owned a few passives: Bent AVC, K&K with S&B102, Placette RVC, and Goldpoint. All were bettered by the Lightspeed Attenuator - but all were first-rate and the tranformer and autoformer units are much easier to match with amps and cables. I also hear the First Watt B1 at RMAF and the system sounded quite good, but not my system or room so that is just a tentative observation; but how many things by Nelson Pass don't sound good?
For me it is the McCormack TLC-1 stock or Deluxe. To me they look and sound great. I especially like the feel of the controls of either preamp.