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

sound problems with a technics srereo?

technics sh-eh50?

technics sterio sa-eh790?

How can I fix my Technics SU-X520D?

How to fix Technics EH550 F61 Error Code?

audio problems?

Band Allocation?

instruction manual?

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

can`t get my hi fi to work?

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?