Well I decided to try CAST caps in my TRL modified Sony CD player. TRL already did significant mods to this unit including a battery power supply for the DAC section.
The output caps were cheap electrolytic types. Very small in size and 100uf value. I simply did not think I could replace these 100 uf caps with small value CASTs , but I was wrong. I placed .22 CAST caps and was not prepared for the massive improvement.
No bass roll off to my ears and I actually measured the bass down to under 25 htz in my room. The sound is soooooooo much better. Guess Sony used 100uf values as the caps are very tiny and electrolytics. I have read larger values are needed to cut distortion with these caps. I learned first hand that one can replace these types of caps with values far smaller when using good film or PIO caps.
Cap roll on!
The output caps were cheap electrolytic types. Very small in size and 100uf value. I simply did not think I could replace these 100 uf caps with small value CASTs , but I was wrong. I placed .22 CAST caps and was not prepared for the massive improvement.
No bass roll off to my ears and I actually measured the bass down to under 25 htz in my room. The sound is soooooooo much better. Guess Sony used 100uf values as the caps are very tiny and electrolytics. I have read larger values are needed to cut distortion with these caps. I learned first hand that one can replace these types of caps with values far smaller when using good film or PIO caps.
Cap roll on!