PNY A.V.S II Attache 4 GB

   For you, music fan, this speaker can be one option. Sony SRS-D4 is a speaker 2.1 which has output with power 13 watt RMS. A subwoofer with 95 mm driver has provided to support bass output which is enough for you to listen any kind of music. Two satellites sized 46 mm guaranteed the sound produced would be clearer and better. Sony SRS-D4 has power, volume, and bass buttons in front side (bottom) and also placed all power port and satellite in rear side.
                                                    
   Material used in subwoofer is not so good since when playing music with high bass, we can see its vibration, and it caused the bass became inoptimum caused by unperfect resonance. Satellite in this speaker is designed 15 degrees faced upside, made the sound produced can be listened better since the sound produced aimed up. This Speaker also uses digital amplifier to converse analog signal produced. It made Sony SRS-D4 save more power and has lower temperature. Pros: unique design, clear sound for treble music Cons: Bass is less sharp and sounds cracked