I bought the L1 and compact when they first came out. I love the clear sound and never have had any issues. I sing also and have never had feed back or distortion issues at high volume unless the gain is accidently turned real high.
I would buy them again if they were stolen, otherwise they will probably outlast me.
Bernie
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pa4X 76 ,SX900, Hammond SK1, Ketron SD40,Ketron Event X Centerpoint Space Station, Bose compact