Thoughts on Threshold Forte Model 3 Nelson Pass

Hey guys: Scored one for $315 on Ebay!!! The seller erroneously listed it as 100 wpc (its 200), and I think that may have kept the price down. Should arrive any day. Does anyone have a suggestion for a reasonable remote-operated preamp or preamp/tuner that will pair well with the Forte? Thanks. Also, confirmed through Threshold that Mr. Pass himself was involved in the design!! -David

Nelson Pass was at Threshold at the time of the Forte designs, but was not actually involved with the design. In fact he was opposed to the use of the IGBT transistors used. The current holders of the Threshold name, have little in common with the Threshold owners at the time the Forte line was being designed by the very capable Michael Bladelius (sp?). Don't let that bother you, the Forte amps are amongst the all time classic great value amps ever made. Enjoy!

Unsound,

The Model 3 did NOT use IGBT's like the later Forte models (after Nelson left). The Model 3 was the 200wpc AB amp of the exact same components as the 1a. The 1a was a 50wpc class A amp. And yes, Nelson had a hand in designing the early Forte models along with Rene Besne. Rene Besne was the designer of the IGBT Forte's.

You are correct Nelson didn't think IGBT's had any place being used in audio and he wrote a large paper about it which can be found on the 'net.

To correct my above post (can't seem to figure how to edit. Michael Bladelius-a Swedish designer was primarily responsible for the Forte Model 4 and 5 which used IGBT's at the outputs. Nelson's designs were still used on the front end of the amplifiers

Heiney, thank you! You are correct, my bad. Though I think it was the model 4's, 5's, 6's and 7's that used the IGBT's, and I believe that Rene Besne's input was mostly limited to the cosmetics. It is interesting that the early Pass designed Forte amps were not at all well recieved in their day, and the latter Bladelius Forte amps were huge hits, especially the smaller higher class A biased amps.