Yo my recording.org peeps. I just got a pair of HM-1s. They are not matched and they do have slightly different freq response plots but that fine with me..i'll use it to my advantage. I tried the HM-1's on my voice and on acoustic. On acoustic I also compared them to my studio projects C4. The HM-1s sounds so much fuller and true while the C4s seem thin. I'll try the HM-1s on electric guitar and as overheads when I can. One happy customer.