Preamp recommendations for a Butler TBD2250?

To correct a mis-stated spec, the sensitivity on the Butler is not 3 volts @ 250 watts and it is not 2 volts @ 150 watts, it is 2 volts @ 250 watts. This has been taken directly from the web page of the TBD-2250 and called and confirmed with the designer. I currently have a modwright 9.0 and a rogue audio zeus amp. I am seriously considering picking up the butler because of the technology and no heat(not that the rogue has a lot of heat) No changing tubes and no hazard to my small children. I talked to the designer and to modwright and the amps have been used at the shows together with great results. The zeus has a sesitivity of 225 watts @ 1 volt. With the modwright there is almost too much gain. with very little fine adjustment at low volumes. I love the Zeus but I might just give the Butler a try.

Hmmm...at the time of my post the Butler site listed the input sensitivity specs I quoted. If the current specs are correct, then a 15db gain preamp should be adequate, unless your sources are lower-than-average output. Certainly there would be a big difference in preamp/amp gain relationships between a given preamp into 1v sensitivity and another into 2v sensitivity. Another thing to consider is the Butler's solid-state-like input impedance of 47kOhm, unlike many tube amps which are maybe 10X that.

Phil

That might be. I picked up the butler and it had no problem being driven by the modwright. It is a very unique sounding amp. Many characteristics of both tube and solid state. Very powerful. In a modest package.