Velodyne Acoustics SC-1250, SC-8, SC-10, SC-12, SC-15, SC-IW, SC-IF, SC-IC, SC-8 Subwoofers

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You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer(s) to the main speakers in your system. If your main speakers are smaller units with limited low frequency output, you may wish to choose a higher frequency (such as 100-120 Hz) than you would with larger speakers which have greater low frequency output. With larger speakers, you might start with this control set lower, such as 80 Hz.

Most receivers and processors provide an option to characterize main speakers as “large” or “small.” This affects the crossover point. We recommend in most cases setting the main speakers to “small,” despite their size and frequency response characteristics. This is because the powerful 1250 watt SC-1250 combined with the SC subwoofer(s) you have acquired are more than likely more suited to low bass reproduction than your amp and main speaker combination. With the burden of low frequency reproduction relieved, your amplifier and main speaker combination will enjoy better performance and about 50% more available headroom, enabling them to more accurately reproduce the rest of the frequency spectrum.

Disabling the Low - Pass Cr ossover (Subwoofer Dir ect)

If your receiver/processor provides a crossover to the subwoofer(s), you may want to bypass the SC-1250’s low-pass crossover. To do this, depress BOTH the Crossover UP and Crossover DOWN buttons simultaneously. The numeric LED will show --indicating that the low-pass crossover has been defeated. To reactivate the low-pass crossover, simply push the crossover UP or crossover DOWN buttons.

AWor d About Your Receiver’s Cr ossover and the SC - 1250 Cr ossover

Your Velodyne SC-1250 amplifier is designed to operate using the full range audio signal for input when using the built-in crossover (controlled by the dial on the back panel). Many home theater processors/receivers (Dolby Digital®, DTS®, THX™) have a “subwoofer out” jack that performs this same function and are designed to be used with a powered subwoofer.

In these installations, you may want to bypass the crossover in either the processor or the Velodyne SC-1250 as described above. However, in some cases you may want to use BOTH crossovers. If you choose to do this you should stagger the frequencies, (i.e., 120 Hz subwoofer, 80 Hz processor) for best results.

Note: If not using an external crossover, you should use the built-in crossover for optimal performance. When using a single RCA sub out from the processor, it does not matter which line level input (L/R) is used.

A Wor d About Inter connect Cables

When installing your Velodyne SC-1250 using the line-level connections, you should always use high quality shielded interconnect cables. It is recommended that you keep the length of cable as short as possible to avoid any potential external interference problems.

When connecting the SC-1250 to your subwoofer(s), use a quality speaker cable that is at least 14-gauge. Be very careful to avoid any loose or frayed strands that could result in a short, causing a dangerous condition and possible damage to your unit. Cables of extremely large size are typically not required. Extremely large gauge wire may not properly fit in the binding posts, resulting in a poor connection and possible short circuits.

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SubContractor User’s Manual

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Contents SubContractor Series U t i o n At t e n t i o n Vo r s i ch t At t e n z i o n e Table of Contents Product Features Prior to InstallationN g r a t u l a t i o n s SC 1250 Subwoofer AmplifierSC 8, SC 10, SC 12, SC 15, SC IW, SC IF/IC Subwoofers S ta l l a t i o n LED Numeric Indicator Volume ControlLow-Pass Crossover Optional Rack MountLine Input / LFE Input See a & 3B Mono LFE Line-Level ConnectionStereo Line-Level Connection IR Input Balanced XLR LFE Input See Figure14 12V Trigger Auto ON/OFF Switch Speaker Level Output Terminals See FigureAbout Low Pass Cr ossovers Disabling the Low Pass Cr ossover Subwoofer Dir ect Wor d About Inter connect CablesSelecting the Subwoofers to be Controlled Wor d About Subwoofer PlacementModel LED Display A g e Remote Contr olMusical Style Suggested Preset Restoring Defaults Preset Subsonic Filter Volume FrequencyCare of your Amplifier and Subwoofer DifferentialTroubleshooting and SER Vice Thank You for Purchasing an SC-1250Specifications Appendix a RS-232 Serial Overview and Commands Com Por t SetupSC in and OUT Por t Pin Configuration Runtime Command Format Byte Number Byte DescriptionW . v e l o d y n e . c o m Digital Drive Other Velodyne Subwoofer ProductsSignature Edition Velodyne Acoustics, Inc

SC-8 Subwoofers, SC-1250, SC-8, SC-10, SC-12, SC-15, SC-IW, SC-IF, SC-IC, SC-1250., SC-8, SC10, SC-12, SC-15, SC-IW, SC-IF, SC-IC specifications

Velodyne Acoustics has long been synonymous with superior subwoofer design, delivering high-performance audio solutions that cater to both audiophiles and casual listeners alike. The SC series, which includes models SC-1250, SC-8, SC-10, SC-12, SC-15, SC-IW, SC-IF, and SC-IC, exemplifies the company's commitment to innovation and sound quality.

The SC-1250 is a powerhouse subwoofer featuring a robust 12-inch driver that produces thunderous low frequencies, boasting an impressive frequency response that reaches down to 20 Hz. Its built-in amplifier delivers 1250 watts of peak power, ensuring that it can handle the dynamic range of any audio source. Smart connectivity options like auto-calibration help optimize sound performance based on room acoustics.

Moving on to the SC-8, this compact subwoofer is particularly suited for smaller spaces. Despite its size, it includes an 8-inch driver that is adept at producing deep bass without distortion, making it ideal for movies and music alike. With a sleek design and easy integration into various home theater systems, the SC-8 is a favorite among urban dwellers.

The SC-10 and SC-12 models provide a balance between size and power. The SC-10 features a 10-inch driver with a low-frequency range that enhances music and film experiences. Meanwhile, the SC-12, with its 12-inch driver, brings a more potent impact, ensuring that users feel the rumble of explosions or the depth of musical tracks. Both models incorporate Velodyne's patented DSP technology, which provides superior control over bass response and minimizes unwanted resonances.

For those seeking an even more powerful experience, the SC-15 delivers exceptional low-end extension with its larger driver. The combination of craftsmanship and technology makes it perfect for critical listening and immersive home theater experiences.

The SC-IW and SC-IF models focus on in-wall and in-floor installations, allowing for seamless integration with home decor while still delivering outstanding audio performance. The SC-IW features a unique enclosure that minimizes vibration, while the SC-IF is designed for easy installation without compromising sound quality.

Finally, the SC-IC model offers a unique in-ceiling subwoofer solution, providing flexibility for users looking to conserve floor space while achieving full-range sound capabilities. Each model in the SC series exemplifies Velodyne's dedication to audio fidelity, boasting features like adjustable crossovers, phase control, and multiple inputs for versatile connectivity.

In conclusion, the Velodyne Acoustics SC series showcases a range of subwoofers designed to meet varying audio demands, from compact options to powerful beasts, all while maintaining the quality and performance that the brand is known for. Whether for music or movies, these subwoofers deliver an audio experience that is both rich and satisfying.
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