九成新Mackie S512 - 12" 音箱，卡拉OK音箱 ，$300

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Highlights
Handles 500W Program / 1,000W Peak
Rugged PVC Vinyl Covered Wood Enclosure
Wide-Dispersion 90 x 50° Horn
HF Protection Circuitry
Speakon and 1/4" Input and Thru Connects
Features
The Mackie S512 - 12" Two-Way Passive Loudspeaker provides both professional-level power handling and sonic performance. This highly-portable two-way loudspeaker handles up to 1,000 watts of peak power. The S512 utilizes custom-specified drivers and all-wood enclosures to deliver touring-quality sound in designs that are rugged and affordable.

The S512's wood enclosure provides excellent response and extended low-frequency output without rattle or vibration. Substantial internal bracing provides a rigid enclosure, also reducing unwanted vibration. The entire acoustic chamber is air-displaced with adiabatic acoustic batting, dampening the internal midrange reflections so they can't bleed back through the LF transducer cone. This, along with LF porting, allows the Mackie S512 to deliver huge sound in a compact design.

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