Fischer Audio Eterna v2?
It has that familiar over-ear wearing style, like the PL30. Never personally tried it but I see very few complaints as to its sound.

This post has been edited by tunertoobe: Jul 25 2012, 11:48 AM

AKG K420.
Maybe Koss Portapro if you don't mind the looks.
Oooh, I forgot one more which is the AiAiAi Tracks. May be a bit more expensive for you, but I think it goes good for any mainstream audience.
EDIT: Dang, forgot one more, and I've personally tried this, the Sony MDR-570LP. I thought it was alright for an on-ear portable. But the AKG, Tracks and Portapro may be better, because the Sony is an entry level portable.

This post has been edited by tunertoobe: Jul 30 2012, 12:55 PM

You could try out the Sony MDR-XB41EX. Pretty big sub-bass, and I'd say quite well done overall. You won't get as much detail like the EX500 (although themselves pretty bassy) but for something that produces bass that low and that strong you can't blame it. Although it does go for RM200. There's the cheaper XB21EX at RM120, but I didn't try it, so I don't know what is sacrificed in that model for the cheaper price. Is it bass, is it detail or is it the good form?

You could audition Hippo Boom at Jaben. It goes for RM150. Dunno about the clarity of the IEM, but you can easily audition them at Jaben.

Also if you can find it, The JVX HAFX1X, one of the Extreme Explosive series. Again, haven't tried one but people say the bass is HUGE. Dunno about clarity. Audition one if you can.

Anything else with huge bass but with clarity that I know is out of your budget.

This post has been edited by tunertoobe: Aug 1 2012, 05:41 AM