I m having Sony's 5 Channel Mini Hi-Fi System and following are the features of the same,
320W RMS (10W x 2 + 40W x 3)
3 DVD/VCD/CD Changer with MP3 Playback
J-PEG Picture/CD-R/DVD-R/+R/+R DL/-RW/-RW(VR)/+RW Playback
S-Master 5-Ch Digital Amplifier.
It has 5 Channel speaker but no sub woofer. Fortunately it has one Sub-Woofer out line which means I can connect Sub Woofer to it.
Requesting you to suggest a powerful Sub-Woofer which is compatible with this model.
MY DEAR, Surtitanuj you have done a blunder by purchaising this model i have purchased the same model as yours in 2007 most probably, write from the very first year it started giving me truble, till tody, now it has gone compleetly out of order and i have wasted a huge amount of money.I have used the system with utmost care and used less approx. say 2 years.I ,there fore brotherly advise you that in feature dont go for any sony product.In India in the name of sony they are cheating more over there service is also very costly and made in china.Iwish you a good luck. ASHIS.
If you want to add a sub to the unit you have then you really could not justify spending very much. I would say any 8" subwoofer with at least 50 watts would be fine. A larger and more expensive sub would be overkill for the system you have.