SW3S Subwoofer

Owner’s Manual

Thank you for your purchase of the NHT Model SW3S Subwoofer. Please take a few minutes to read through this Owner’s Manual prior to installing your new subwoofer. The information provided can help you to obtain maximum performance from your audio system. If you have questions or need assistance at any time during the installation or operation of your new subwoofer, please call your NHT Dealer or our Toll-Free Customer Hotline at:

1-800-NHT-9993

Please retain the Model SW3S packaging to protect the subwoofer in the event that you move or transport it.

Model SW3S Specifications

System Type: Acoustic Suspension design

Driver Complement: 12” polypropylene woofer

Response: 23Hz to 250Hz

Sensitivity: 87dB (2.83V at 1M)

Recommended Power: 50 watts min., 250 watts max.

Impedance: 6 ohms nominal, 4 ohms minimum

Inputs: 1 pair of 5-way binding posts

Weight: 72 lbs. each

Dimensions: 19”H x 19”W x 19”D

Finish: High gloss black laminate

Specifications are subject to change without notice, in accordance with our policy of continuously upgrading the performance of our products.

„Design

NHT speakers are designed to deliver refined, musical sound from attractive and affordable packages. Our efforts are guided by the study of human hearing and are optimized for real-world use. Every NHT loudspeaker undergoes rigorous testing and quality control at the factory to ensure you years of listening pleasure.

The SW3S Subwoofer features a custom-designed 12” polypropylene woofer that is capable of accurate low frequency reproduc- tion to 23Hz, with high output and low distortion. The SW3S, when combined with the NHT SA-3 monaural subwoofer amplifier, comprises the NHT SW3P Powered Subwoofer System. For a flatter overall low frequency response and increased clarity, two SW3S subwoofers may be connected in parallel to the NHT SA-3 subwoofer amplifier, which is designed with enough high current capability to drive two subwoofers. Alternately, you can use an external crossover and a monaural amplifier of your choice to create your own powered subwoofer system.

„Placement

Contrary to popular belief, subwoofers are sensitive to placement. Experimentation is the key to finding the best arrangement in your listening environment. Generally, a subwoofer should be located in the same horizontal plane and along the same wall as the main speakers. Low frequencies produce long wavelengths and thus interact with room boundaries significantly. Placing the subwoofer nearer to a room boundary (walls, corners) will tend to increase its bass output, but may result in “boomy” or “muddy” sound. Conversely, placing the subwoofer farther away from room boundaries will tend to decrease its bass output, but may result in improved articulation and clarity.

Position the subwoofer so that it does not radiate sound directly into a wall or floor, and ensure that it faces into the room, unobstructed by large furnishings. If you are using two subwoofers, the greatest improvement in low frequency response is achieved by placing the second subwoofer on the opposite side of the room from the first. Avoid placing the two subwoofers symmetrically in the room (such as in two corners). As the SW3S is not magnetically shielded, do not place it in the immediate vicinity of a television, or picture discoloration may occur.

„Connections

The SW3S Subwoofer is designed for use with an external crossover and a monaural amplifier. The SW3S does not have an inter- nal crossover, so it should not be connected to any other amplifier or integrated amplifier unless it has a low-pass filter. Using the SW3S without a low-pass filter will not damage it, however the resulting sound will be undesirable.

Before connecting the SW3S to the SA-3 (or any amplifier), it is very important that you turn off the power to the amplifi- er. Proper wiring of the subwoofer is essential to good sound. NHT recommends a minimum of 14 AWG wire to connect the SW3S Subwoofer to the SA-3 Amplifier. If you choose to place the subwoofer at a distance greater than 15 feet away from the amplifi-

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NHT SW3S owner manual NHT-9993, „ Design, „ Placement, „ Connections
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SW3S specifications

NHT SW3S is a high-performance subwoofer designed for audiophiles and home theater enthusiasts seeking deep, powerful bass response. Built by NHT (NHT Audio), a company renowned for its commitment to sound quality and innovative design, the SW3S embodies sophisticated engineering while maintaining user-friendly characteristics.

One of the standout features of the NHT SW3S is its compact size. Despite its relatively small footprint, the subwoofer delivers an impressive low-frequency extension, making it ideal for small to medium-sized rooms where space is a consideration. This design allows users to position it easily without sacrificing sound quality, a critical factor for those living in urban settings or limited spaces.

At the heart of the SW3S is a high-efficiency 300-watt amplifier, providing ample power to drive the 10-inch cone woofer. This woofer utilizes a unique injection-molded polypropylene cone that enhances durability while producing clear and accurate bass tones. The subwoofer system is engineered to handle both music and movie soundtracks, delivering an immersive experience that is essential for home theater setups.

To achieve precise sound reproduction, the SW3S features advanced technologies such as a robust digital signal processor (DSP). The DSP allows for fine-tuning of the bass response, enabling users to easily adjust settings based on room acoustics or personal preferences. Additionally, the subwoofer includes adjustable crossover settings, which can be configured to blend seamlessly with any main speakers, ensuring a cohesive soundstage.

Another notable characteristic of the NHT SW3S is its versatile connectivity options. It is equipped with both line-level and speaker-level inputs, making it compatible with a variety of audio systems, including traditional stereo setups and modern surround sound configurations. This flexibility ensures that the SW3S can be integrated into virtually any audio environment with ease.

Overall, the NHT SW3S offers a combination of superior sound quality, innovative technologies, and practical design. Its ability to deliver deep, impactful bass while maintaining a compact form factor makes it a compelling choice for those wanting to enhance their audio experience without compromising on space or sound fidelity. Whether for music listening or cinematic enjoyment, the NHT SW3S stands out as a reliable and impressive subwoofer.
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