I found three stores on the Meridian web site (see below) in the Pacific Northwest. I suggest you call them for information on getting your Meridian 508 20 repaired.
CHELSEA AUDIO VIDEO
3700 SW Hall Blvd.
Beaverton
Tel: (503) 641-3533
ford@chelseaaudiovideo.com
DEFINITIVE AUDIO
2045 120th Avenue NE
Bellevue
Tel: (425) 746-3188
garyb@definitive.com
NUTS ABOUT HIFI
9960 Silverdale Way NW
Silverdale
Tel: (360) 698-1348
jim@nutsabouthifi.com
CHELSEA AUDIO VIDEO
3700 SW Hall Blvd.
Beaverton
Tel: (503) 641-3533
ford@chelseaaudiovideo.com
DEFINITIVE AUDIO
2045 120th Avenue NE
Bellevue
Tel: (425) 746-3188
garyb@definitive.com
NUTS ABOUT HIFI
9960 Silverdale Way NW
Silverdale
Tel: (360) 698-1348
jim@nutsabouthifi.com