Here are my suggestions:
1. Isolate the CDP well, and it really means great differences in musical presentation. I put them atop a BDR Shelf with BDR cones, and that was much better than the Seismic Sink (older model) I have.
2. I tried many tubes. So far I like the Valvo 6201 (blue lable is a bit better than the white)and the cheap GE 5 star also gives a more lively sound. Siemens ECC81 or ECC801 gives a more linear sound with solid bass.
1. Isolate the CDP well, and it really means great differences in musical presentation. I put them atop a BDR Shelf with BDR cones, and that was much better than the Seismic Sink (older model) I have.
2. I tried many tubes. So far I like the Valvo 6201 (blue lable is a bit better than the white)and the cheap GE 5 star also gives a more lively sound. Siemens ECC81 or ECC801 gives a more linear sound with solid bass.