depends on the mid and the tweeter. If the tweeter can play low down to 3000hz and the mid leaves off around there, then its good.
Keep in mind If its a full on dedicated midbass only driver, its not gonna play anywhere above 1000hz cleanly or loudly if its just a regular all around midwoofer thats labeled as a midbass then you should be fine in most cases. Examples of midbass only drivers, exodus anarchy, JL ZR 800. These, you need to use them in a 3 way active front no questions asked, no tweeter can go low enough(unless you use a wideband mid/tweet but those are complete and utter shit for loudness), you need a dedicated midrange for these dedicated midbass.
All other mids that are labeled "midbass" but can play up to 3000hz to 5000hz are just regular midwoofers imo not true midbass.