I still use my Z2300 for my desktop PC. However, I am looking into getting the iLoud Micro for travel. It is kind of pricey but I can't "afford" to carry bigger speakers for air travel. Besides, the Micro does sound very good and loud. I heard a guy playing big sounds of Sampletank through them at NAMM. It was quite amazing especially for the bottom with no subwoofer. I don't know what other choices are out there in terms of sonic capabilities and size/weight.
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"You Shall Know the Truth, and the Truth will set you free." John 8:32