If you want to go technical, the differences can be listed down a long list of paper. But in real-world and subjective hearing, the difference are much more down to preference and usability.

People would use front ported bookshelfs/towers/sats if they absolutely need to place it right up against the wall due to space issues (very common in SOHO or studio apartments). This prevents port flaring for one and bass can be increased due to the close proximity against a back wall (again in a small space, a sub may be difficult to place).

But if you were to place a pair of front ported and rear ported speakers at the usual optimal location (2-3ft off the back wall, 4-6ft off the side wall), the differences are usually down to preferences of the listener.

In fact it's difficult to even compare apples to apples because a rear ported bookshelf design cannot have the same properties as a front ported bookshelf even if they are from the same manufacturer, done by the same designer and integrated by the same engineer.  I mean the front baffle itself would already need to be different in shape and size vs a rear ported box. Not to mention countless other things like the crossover, the phase, the size of the driver and so on. It's simple physics, you just can't bend it.

monitor audio bronze has front bass port. near ur budget

You should demo all you can

When Desa Home Theatre going to announce their Hari Raya promotion? 

Haha yup bro but scared if suddenly I like the expensive model then finish I will be pokai😋

Well is good to try out still

There's never "best". It's more of if you are satisfied or not. There are many people who are satisfied with TV audio and they don't think any bigger speakers will have an improvement. So there's that.

Monitor audio bronze 2 not bad

Silver will be a better choice

Bro Sonerin,

May I know what model of AVR u use? Actually I'm now doing some survey before i buy the receiver. However, what i found currently in Malaysia the AVR that came with Atmos and DTS X is still limited. I can say i found it most were ONKYO brand.

Another thing, what's the recommended AVR wattage for small home theater room? I'm planning from now to setup a 7.1 system and use a 5.1.2 atmos layout in that room.

I see a lot of places are starting to clear out on last year's models though. Particularly Yamaha, Onkyo and Pioneer.

RXA3050 for under 6.8k seems like a decent deal.

my guess is RM1600

700 for CS5 (bookshelve)
500 for the CS8 (center)

Marantz SR5010 is RM3.3k or less, pretty decent receiver with Atmos and DTSX.

Either that or wait for the Yamaha v681/v781 or A860.