well, that's a good news
it's very much helpful to provide details, which is better in terms of highs, mids and lows 
highs: w4 = very detailed and effortless w/out sibilance even at high volumes
fx700 = very detailed w/ a little bit of sibilance depending on the record and volume
mids: w4 = more micro detail than 700 and upfront though not as upfront as shure se535
fx700 = very good and natural but still cant compete with ba drivers though very close
lows: w4 = good extension and impact but lacks a little bit rumble around 20-25hz
fx700 = the bomb