Yamaha NS-SW300 Powered Subwoofer

Yamaha NS-SW300 Powered Subwoofer

Yamaha NS-SW300 is a powered subwoofer.

It extends the bass response of a stereo or home theater system. A front-firing 25 cm woofer works with a side-mounted Twisted Flare Port designed to reduce airflow noise.

Advanced YST II and a PWM amplifier with dual feedback control the woofer. Front-panel volume and standby controls remain accessible after installation.

RCA, LFE and speaker-level inputs accommodate different amplifiers. This version has a piano black finish and is sold as one subwoofer.

The speaker-level OUTPUT terminals pass the amplifier signal to the main speakers; they do not add another power amplifier. The supplied system control cable synchronizes power and does not carry audio. The front control panel is tilted for easier access and has a status indicator.

Main Features

• The 25 cm woofer uses a square-wire voice coil.
• Twisted Flare Port reduces turbulence and unwanted airflow noise.
• Advanced YST II supports controlled bass reproduction.
• Dual feedback in the PWM amplifier corrects the output signal.
• HIGH CUT adjustment helps blend the subwoofer with the main speakers.
• The PHASE switch selects normal or reversed phase.
• B.A.S.S. MUSIC / MOVIE settings adapt bass reproduction to music or movies.
• AUTO STANDBY HIGH/LOW/OFF sets signal-sensing sensitivity or disables automatic standby.
• SYSTEM CONNECTOR synchronizes power with a compatible Yamaha component.
• The LFE input bypasses HIGH CUT so crossover filtering can be handled by the AV receiver.

Technical Specifications

• Driver: 1 × 25 cm front-firing cone; square-wire voice coil
• Amplifier output: 250 W (100 Hz, 5 Ω, 10% THD)
• Frequency response: 20 Hz-160 Hz
• Inputs: INPUT2 RCA L/R; INPUT3 LFE; INPUT1 speaker-level
• Outputs: OUTPUT speaker-level pass-through, without additional amplification
• Controls: volume and HIGH CUT knobs; PHASE and B.A.S.S. MUSIC/MOVIE switches; standby button
• Power supply and consumption: 230 V, 50 Hz; 80 W; standby up to 0.3 W
• Dimensions (W × H × D): 350 × 366 × 420 mm
• Weight: 18 kg

What’s Included

• Yamaha NS-SW300 Powered Subwoofer, 1 pc
• System control cable, 5 m, 1 pc

Who Is It For

For stereo and home theater systems requiring a separate subwoofer. Connect a line-level or LFE source, or use the speaker-level input. An RCA audio cable is not included.

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