I have a 115BH and the D series JBL's don't fit. The frame edge is too deep for my cabinet. I had a JBL M 115 in it and it was nice. I have an old Utah in mine now. It sounds good...noticibly quiter...the Utah is not as efficient as a JBL, even the M's
Look for the best value, Black Widows are fine speakers....as are so many these days. I don't think the Magna would handle the power, not with 120 watts, the original speaker was a Magna and it handled 80 watts.