Beauty and operation excellence pair up to give you the Subwoofer NS-SW300. It introduces a new technology, Twisted Flare Port, that contributes to a clear and tight bass. The flared, gently twisting shape diffuses the vortex of air generated around the edge of the port and thus, creates a smooth flow of air. This results in clear, accurate, low frequency sound reproduction. Be it the sound of a live venue or sound effects in movie scenes, the multitudinous sounds are delivered with a bass that is tight and realistic.

The sound clarity is also taken care of by the Dual Feedback Circuit that reduces distortion by applying feedback twice. The built-in power amplifier delivers a stable power output of 250W and minimizes the power consumption along with heat production. It eliminates the need for an output filter coil, resulting in low noise and distortion.

The awesome deep bass is largely also due to the Advanced YST II (Yamaha Active Servo Technology II) that maintains excellent linearity, stability and increases the quality of sound.

New Twisted Flare Port Produces Clear and Tight Bass

The all-new Twisted Flare Port takes advantage of extensive subwoofer development experience. The flared, gently twisting shape diffuses the vortex of air generated around the edge of the port, creating a smooth flow of air. This reduces extraneous noise not present in the original input signal and provides clear, accurate low frequency reproduction. From special effect sounds in movies to the atmosphere of a live venue, you hear bass that is clear, tight and realistic.

PWM Digital Drive High Efficiency Amplifier and Dual Feedback Circuit

The built-in power amplifier delivers stable power output of 250 W with high efficiency while minimizing power consumption and heat production. It does not require an output filter coil, resulting in extremely low noise and distortion. High speed transient response is also excellent. The dual feedback circuit reduces distortion by applying feedback twice, resulting in higher sound clarity.

Advanced YST II for Awesome Deep Bass

Developed by Yamaha, the Advanced YST II (Yamaha Active Servo Technology II) combines negative-impedance and constant-current principles to drive the speaker cone with even tighter control than the previous version. Using Advanced Negative Impedance Converter (ANIC) circuits, this system dynamically optimizes effective speaker impedance to maintain excellent linearity. This means more stable and accurate low range response, not to mention higher sound quality.

Front Control Panel for Easy Operation

The power and volume buttons, which are used most often, are laid out on the front surface of the unit for ease of access. It is inclined at an angle of 45°, making it easy to use even when placed on the floor. An LED indicator is above the power button, so even in a dimly lit room it's easy to tell if it's on or off.

Other Notable Features

• Low standby power consumption of 0.3W
• Auto Standby switch / Sensitivity selector (high, low and off)
• Phase control (normal or reverse)
• B.A.S.S. switch