I placed Jupiter copper foil caps in my 300b SET (replacing the stock Solens) and it's a worthwhile upgrade. I went with them rather than the Duelund CAST due to the lower cost and enthusiastic recommendations.
The Duelund CAST is superb in my DAC and speaker crossover (tweeter). Though expensive I believe they are definitely worth their cost.
Charles
The Duelund CAST is superb in my DAC and speaker crossover (tweeter). Though expensive I believe they are definitely worth their cost.
Charles