My Technics SA-DV290 Sounds very muffled whatever I play??

can`t get my hi fi to work?

where can I take or send to repair my Technics cd changer sl-pd847?

instruction manual?

How can I fix my Technics SU-X520D?

sound problems with a technics srereo?

technics sterio sa-eh790?

technics sh-eh50?

There seems to be no power to my stereo....I have checked the plug and fuse?

how can i fix my technics system when pg1 cums onit?

Band Allocation?

audio problems?

How to fix Technics EH550 F61 Error Code?