You didn't say much about the older speakers that you are using or how you are hooking them up. Are they powered? (A/C) or USB input only. If you want better and/or more sound then depending on the system you would typically use powered (A/C) speakers as opposed to USB (System driven) units. Many also upgrade to an aftermarket sound card or use SPDIF hook ups if available.
I recently bought an HP-1270t with Windows 7 Home Premium [64-bit] OS.
I have some very old speakers that I hooked up from my last computer, though I do plan to buy some new speakers ASAP. In the meantime, the sound coming from the computer is really, really lacking. I've even seen on the internet where people have good speakers and still feel like the Windows 7 sound is not enough.
Can I download any kind of codecs or anything off the internet to make the sound much louder? I enjoy loud music and videos at times, so this is pretty important to me.