First truly Optical Fader | Numark Industries SM-3 manual

PRO SM-3

Infinity™ Fader

The First truly Optical Fader

The Infinity Fader™ is a Industries worldwide patented design and completely changes the way audio mixers work.

The Infinity™ Fader is the world's first truly 100% optical fader. Previous concepts have always required a stiff shaft to pull electrical contacts along a circuit board. Though these variable resistive faders have been used for many years there have always been some basic drawbacks with the design. Because the fader has to drag contacts along a circuit boards the fader has significant drag in it’s motion. This design also breaks down over time and can require the fader be replaced on a regular basis if the fader is used for scratching.

The Infinity™ Fader solves both problems by removing the path of resistance by contact. It incorporates an LED, photo sensor, and a blocking fader shaft.

The LED transmits light to the photo sensor. Between these two parts is a blocking fader shaft that travels on a track of the smoothest steel ball bearings. This steel fader shaft changes the amount of light it blocks as it moves across the path of the LED. The more the blocking fader moves in front of the LED, the amount of light received by the photo sensor is reduced. This information is then translated into various levels of gain control within the mixer. The fader shaft itself has no audio or electrical parts attached to it to wear out. This revolutionary Friction Free concept achieves the cleanest sound with the absolute fastest and smoothest cuts.

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SM-3 specifications

Numark Industries has long been a prominent name in the world of audio equipment, and the SM-3 is a remarkable addition to their lineup of professional DJ mixers. Designed with both versatility and user-friendliness in mind, the SM-3 provides artists and DJs with the tools they need to create captivating mixes, whether in a live setting or in the studio.

One of the standout features of the Numark SM-3 is its three-channel configuration, which allows for seamless blending of multiple audio sources. Each channel is equipped with a robust EQ section, complete with a three-band equalizer that gives users the ability to fine-tune frequencies. This level of control ensures that every mix is personalized to the artist’s unique style and preferences. Additionally, the SM-3 features a smooth, precise 60mm fader which offers reliable performance and longevity, making it ideal for both extensive use and intricate transitions.

The integration of professional-grade audio technologies sets the SM-3 apart from its competitors. It boasts a low-noise design that minimizes sound distortion, while still maintaining a high dynamic range. This feature is crucial for live performances where audio quality is paramount. The mixer also supports a wide range of input options, including line, phono, and microphone inputs, providing adaptability for various setups and environments.

Furthermore, the SM-3 incorporates a built-in effects processor that encourages creativity in mixing. DJs can utilize effects like echo, delay, and reverb, adding texture and depth to their sets. The mixer also comes with a dedicated headphone output for monitoring, ensuring that users can keep their mixes in sync even in loud settings.

Another important characteristic of the SM-3 is its sturdy, road-ready construction. Designed for heavy use, the mixer features a rugged chassis that can withstand the rigors of touring. The iconic Numark design not only gives it a professional aesthetic but also ensures its durability in challenging environments.

In summary, the Numark Industries SM-3 is a powerful DJ mixer that combines advanced technology with user-oriented features. Its three-channel setup, robust EQ options, built-in effects, and solid construction make it an ideal choice for both professional and aspiring DJs seeking to elevate their performances.