All --

I am seeking recommendations for external speakers to make my laptop playback louder.

Here is the deal.

Playing Biab and my digital piano with headphones on sounds great.

However, I am working with individual musicians on various parts of a tune.

For example, I have a singer and I play piano and I want to have Biab play the drums and bass. I can use the built-in speakers in my digital piano (which are OK for small-room size playing), a Casio PX-130.

We cannot do this with headphones and we cannot do this with the built-in laptop speakers because they are too soft and have very little sound quality (bass range for instance).

So, I want to plug a cord into my headphone-out-jack and plug the other end into something-- like an amp-- and play it loud.

Ideally, whatever I get should work with the case when I am working 1-on-1 with a live drummer and Biab is playing bass.

Plus, of course, I am trying to do this on a budget, so I do not want to over-buy either.

BTW, one idea that I have is to get an amp that will be kind of dual-purpose. When I want to rehersey in a small room, I use the amp to will play Biab parts and I use my digital piano's built-in speakers. And, if I need to gig at a small open mike or lounge, I can bring the amp and use it to make my keyboard louder there. Etc.

I have been looking at stuff like this...

Behringer KT108 15-Watt Keyboard Amplifier

http://www.amazon.com/Behringer-KT108-15...ds=keyboard+amp

Pignose PB-30 PB-30 Bass, Keyboard & Acoustic amplifier

http://www.amazon.com/Pignose-PB-30-Keyb...ds=keyboard+amp

Peavey Peavey KB 1 20W Keyboard Amp

http://www.amazon.com/Peavey-KB-20W-Keyb...ds=keyboard+amp

...so would they work for Biab playback?

What would you get if you had to solve this issue and had up to $300 to spend (but wanted to stay under $200 if possible)?

If possible, please mention brands, models, makes, wattage, etc, if you can-- I have limited knowledge in this area.

Thanks.

-- Mark Kamoski