Threshold S300 Power Amp

Google Jon Soderberg at vintageamprepair I think is it....good luck,Bob

Definitely contact Jon Soderberg. He is a true craftsman and does quick high quality work. I recently sent him my Forte 5 for a recap and it sounds wonderful. He knows his Pass products. vintageamp@comcast.net or www.vintageamprepair.net

An amp as old as the Threshold S300 might need new caps and rebiasing. You have a fine amp and the costs to do the above would be well worth it. It would probably cost much more to find a newer amp that could compare to your Threshold. I like many others have found the Alpha-Core Goertz speaker cables to work particularly well with Threshold amps. The Threshold amps will absolutley require the RC networks that Alpha-Core can provide. Of course I don't know the rest of your system or your individual preferences, but Alpha-Core offers a generous free trial period. You'll probably want to consider Alpha-Core's Goertz MI2's. The above mentioned Jon Soderberg, though not cheap, truly knows Threshold gear and does excellent work, highly recommended.

The amp is way ahead of its time even though it was designed in the eighties. Very refined, transparent and powerful. By todays standards it still is extremely good sounding, Nelson Pass is a genius but also takes pride in his designs and workmanship.

Recommending interconnects is hit & miss and you should experiment yourself since you have to take in consideration your other associated gear & personal tastes.