So I got a pair of the MA750s (for my daughter as it turns out). But I did have them for the past few weeks and used them for about 30 minutes at a time...about the max I can with IEMs actually and I gotta say I am VERY impressed with them. Their construction is S-O-L-I-D! I love the stainless steel and the cable is very sturdy. I guess my only gripe is the plug is a bit too wide to fit in my iPhone case, so I have to pull it back to get it fully in. My favourite plug is on the Sennheiser Momentum...something other manufacturers should look at IMO.
Now moving on to how does it sound?
Well, first off, it certainly doesn't sound like a $130 IEM. In fact, it punches much higher than its weight class. I prefer this to the Westone 3s, SE315s, IE8s that I previously owned. The overall sound signature is quite balanced with very good hitting bass, and treble that is very well extended (see Shure....extended treble can be done with an IEM
). The mids are solid and very clean and transparent.
Isolation is on the average side compared to Shure IEMs, but still not bad at all. Overall for $129, these are a no-brainer IMO. I'm not a fan of the higher and higher prices of IEMs lately and only to have them sound VERY marginally better (if at all). Heck, I've lost many over the years and was paranoid on taking my SE535s and W4s out of the house....I'm very happy to see that companies like RHA have developed affordable IEMs, like the MA750s, that one doesn't have to sacrifice sound quality for an ever increasing price.