I don’t know the TCS21 but I tried the TCS31 with my DAC (Weiss Medea+) and it’s truly magic.
Extreme resolution and speed with superb smooth midrange. On the Dac I agree with Petg60 it’s a quite neutral cable, with just a slice of warmth.
On preamps and integrated amps, it brings a bit more darkness to the sound. I ended up using my TCS31 on my McIntosh C2300 tube preamp and on my Viva Egoista 845 headphone amp and it’s simply marvellous. As the TCS21 replaced the FP3TS20, I guess it could be brighter than the TCS31, but it’s just a supposition.
Extreme resolution and speed with superb smooth midrange. On the Dac I agree with Petg60 it’s a quite neutral cable, with just a slice of warmth.
On preamps and integrated amps, it brings a bit more darkness to the sound. I ended up using my TCS31 on my McIntosh C2300 tube preamp and on my Viva Egoista 845 headphone amp and it’s simply marvellous. As the TCS21 replaced the FP3TS20, I guess it could be brighter than the TCS31, but it’s just a supposition.