低音炮

Design
　　Powerful bass kicks movie music and effects into overdrive. And that takes a mighty, yet accurate, subwoofer. The Jamo SUB 300 brings low-frequency notes front and center, for resounding bass you can hear—and feel.

　　The compact SUB 300 adds strong, clear bass to any 2-channel or home theater system. This slotted-port subwoofer packs 300 watts of power plus a 10-inch bass driver to add the low frequency punch that brings movies and music to life. Plus, with its black ash or dark apple finish, the SUB 300 can fit seamlessly into nearly any room.

Technology
　　The SUB 300 is equipped with a powerful 10-inch long-throw woofer unit housed in the unique slotted port cabinet and a BASH® amplifier capable of delivering 300 watts of peak power. The powerful amplifier, increased cabinet size and ported design, make this subwoofer capable of delivering both a higher sound pressure level (SPL) and a flat frequency response, down to 28 Hz. All delivered, of course, with maximum musical fidelity and a flat frequency response. The SUB 300 is equipped with a front-mounted volume control for easy adjustment.

　　The Jamo SUB 300 subwoofer is packed with high-performance features:

　　A BASH amplifier for high efficiency, with low heat buildup
　　A slotted port cabinet to reduce distortion and increase efficiency
　　Level, phase and cutoff controls to set the SUB 300 to your preferences
　　The SUB 300 driver, designed to move air with speed and control
　　Deep, booming bass in an elegant package. The SUB 300 adds a new dimension to your favorite music and movies.
 

技术
BASH Amplifier
　　This subwoofer features the highly efficient BASH® amplifier technology, which combines the musical quality of class A/B amplifiers with the efficiency of class D amplifiers. BASH® technology translates into more efficient, yet more powerful amplification without the heat associated with conventional amplifiers. 

　　This subwoofer also feature a convenient on/auto/off switch and built-in limiter, which means that sound reproduction will always be clean and as well defined as intended.
Level, Phase and Cut-off
　　Continuously variable level, phase and cut-off frequency controls make it easy to tune the subwoofer to integrate with virtually any speaker on the market, as well as allowing different placements and personal preferences
窄槽式倒相箱体
　　窄槽倒相式是这些低音炮构造中独特的部分。设计用来加强侧面，使得整个箱体异常坚固。它还允许用更大的导管面积实现更低的频率调谐，与传统的圆孔相比，既高效率又低失真。

Speaker Level In
　　This subwoofer features speaker-level inputs, which is vital if your amplifier/receiver lacks a subwoofer line output.

　　The subwoofers also have both left and right line-level inputs (for stereo sources) plus a "loop-through" capability to allow the signal to be routed through to a second subwoofer.