| Proac K1, room size | jasonbourne52 | 717 | 1 | |
| Krell K-300i, RCA vs XLR | atmasphere | 506 | 2 | |
| Krell k-300i vs Rega Osiris, integrated | yyzsantabarbara | 1324 | 10 | |
| First Watt F8, passive preamp, DAC | officialcarolblankatm | 1343 | 17 | |
| Valvet with DAC for volume | rfprice | 847 | 8 | |
| Higher amperage fuse for sound quality | antigrunge2 | 1755 | 41 | |
| Rega Osiris, Isis updates | rfprice | 1422 | 2 | |
| Component grounding | apogeum | 2219 | 32 | |
| Wywires platinum or Wireworld Silver Eclipse, speaker cable | pops | 2216 | 4 | |
| Rethm speakers, bass amplification | rfprice | 1337 | 18 | |
| Cary 300 integrated, Devore speakers | rfprice | 1073 | 5 | |
| Shunyata Triton, zone allocation | rfprice | 1261 | 2 | |
| Subwoofer speaker outputs to increase efficiency | artemus_5 | 1245 | 10 | |
| Clean away old CD treatments | rfprice | 2926 | 27 | |
| Power conditioners: Shunyata and PS Audio | ptss | 8538 | 7 | |
