Key Features of the Yamaha NS-SW300 Subwoofer

Engineered for Small to Medium Living Spaces

The compact footprint of the NS-SW300 makes it the ideal cornerstone for dedicated home theatres and media rooms where space is at a premium. In small to medium-sized rooms, massive subwoofers can easily overwhelm the acoustic environment, causing bloated, muddy bass and distracting room vibrations. This unit strikes the perfect balance, delivering hard-hitting cinematic impacts without taking over your floor plan. For the ultimate audio experience, integrating a dual-subwoofer setup with two NS-SW300 units provides a vastly superior alternative to a single, larger subwoofer. Running multiple subwoofers distributes low frequencies evenly throughout the entire room, effectively neutralizing dead spots and ensuring that every seat in your home theatre experiences the exact same smooth, chest-thumping bass response.

• 25 cm (10”) cone woofer with square wire voice coil
• 250 Watt Amplifier
• Front control panel for easy control
• System control and Auto standby
• PWM digital drive high efficiency amplifier and dual feedback circuit
• New Twisted Flare Port contributes to clear and tight bass
• Advanced YST II (Yamaha Active Servo Technology II)
• Beautiful design will match a wide range of speakers and interiors

• Gently curved front surface presents a sleek, elegant aesthetic that blends seamlessly into any modern living space.
• Beautifully matte-black finish provides a premium non-reflective look that can sit and hide discretely in your dark media room
• Side-angled control panel allows for effortless access to power and volume without disrupting the clean front appearance.

• Twisted Flare Port technology diffuses air vortexes around the edge of the port to dramatically reduce extraneous noise and deliver tight, realistic low frequencies.
• Built-in 250W digital amplifier drives the speaker unit with high efficiency while minimizing power consumption and heat generation.
• 10-inch (25cm) cone woofer utilizes a square wire voice coil to provide powerful, linearly accurate bass response.
• Advanced YST II (Yamaha Active Servo Technology II) dynamically optimizes speaker impedance to maintain perfect linearity and stable low-range performance.
• System Control compatibility links seamlessly with compatible Yamaha amplifiers to automatically power on and off with your audio system.

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 of the Yamaha NS-SW300 subwoofer 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.

25 cm (10”) Cone Woofer Unit with Square Wire
A 25 cm (10”) large woofer unit is used in a front-firing configuration in the Yamaha NS-SW300 subwoofer, The voice coil of the driver unit employs square wire with a wide surface area that can be wound more densely to obtain higher magnetic flux density. It delivers high drive force, permitting tight and deep bass reproduction.

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.

System Control and Auto Standby
The system control terminal can be linked to the amplifier power to automatically turn the power on and off. There is also an Auto Standby Function: If no signal is input from the amplifier for a fixed period, it automatically switches to the standby state, and when a signal from the amplifier is detected, power turns on automatically. This limits the wasteful consumption of electricity.

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