(8) SPEAKER LEVEL OUTPUT Terminals

Sends a crossed-over speaker-level signal to the front speakers. See below for a more detailed explanation of this crossover.

Rear Panel Connections - Detailed Explanations

Your new subwoofer is equipped with both speaker-level and line-level inputs. Use the RCA/Phono type “INPUT” jacks when connecting your subwoofer to a pre-amp, signal processor, or line-level crossover. The “SPEAKER LEVEL INPUT” jacks connect directly to the speaker outputs of an integrated amplifier or receiver. Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance.

Note:

Do not use both the RCA/Phono “INPUT” connections and “SPEAKER LEVEL INPUT” connections simultaneously.

Low - Pass Cr ossover

Both sets of inputs sum the left and right channels together and the resulting signal is passed through an adjustable low-pass crossover before being amplified. The crossover control allows you to adjust the upper limit of the subwoofer’s frequency response from 60 to 150 Hz. The subwoofer’s response will begin rolling off above the frequency you set this control to.

You should set the crossover frequency to obtain a smooth and seamless transition from the subwoofer 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.

Subwoofer Dir ect

Subwoofer Direct is a setting on the low-pass crossover knob and will allow frequencies up to 200 Hz into the subwoofer. See below for a more detailed explanation of this feature.

Speaker Level Output/Line Level Output

When connected in this fashion, your satellite speakers will be crossed over at 80 Hz. This removes the lower bass from your satellites, enabling them to do a better job reproducing high frequencies and giving your receiver’s amp more headroom (up to 50% more power).

You may also connect your satellites directly to your receiver or amplifier along with the subwoofer if you wish to bypass this crossover.

Caution!!!

To avoid damage to your main amplifier, be sure to maintain correct polarity when making all connections. Red (positive) to red, and black (negative) to black. Be sure that all connections are tight, and that there are no loose strands or frayed wires.

Power Switch

The master power switch is located on the lower right half of the unit. This rocker style

switch is the main on/off for the unit. This switch should be set to position 1 for on (up), 0 for

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VDR Series User’s Manual 5

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Velodyne Acoustics VDR-12 Low Pass Cr ossover, Subwoofer Dir ect, Speaker Level Output/Line Level Output, Power Switch
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VDR-10, VDR-12 specifications

Velodyne Acoustics has long been recognized as a leader in the production of high-performance audio equipment, particularly subwoofers. Among their impressive range of products, the VDR-12 and VDR-10 stand out for their innovative features and robust capabilities, making them excellent choices for audiophiles and casual listeners alike.

The Velodyne VDR-12 is a 12-inch subwoofer designed to deliver deep, powerful bass while maintaining accuracy. One of its main features is the advanced Class D amplification, which ensures efficient power usage without sacrificing sound quality. The VDR-12 boasts a power rating of 800 watts peak and 400 watts RMS, allowing it to produce deep, thunderous lows that can fill a room without distortion. Its frequency response ranges from 24 Hz to 150 Hz, ensuring that it can handle a wide variety of audio content, from movies to music.

Another standout characteristic of the VDR-12 is its intelligent room optimization technology, which automatically calibrates the subwoofer's output based on the acoustics of the listening environment. This feature allows users to enjoy optimal sound quality without the need for complex manual adjustments. Furthermore, the VDR-12 includes adjustable crossover and phase controls, giving listeners the flexibility to customize their audio experience to suit their preferences.

On the other hand, the Velodyne VDR-10 is a 10-inch subwoofer that shares many of the same cutting-edge technologies as its larger counterpart. With a power output of 600 watts peak and 300 watts RMS, the VDR-10 is designed to provide impactful bass performance in a more compact form factor. Its frequency response extends down to 28 Hz, making it an ideal choice for those with limited space who do not want to compromise on sound quality.

The VDR-10 also features Velodyne's intelligent room optimization technology, which ensures that users can enjoy optimal performance regardless of their room's acoustics. Additionally, its sleek design makes it an attractive addition to any home audio setup. Both the VDR-12 and VDR-10 come equipped with a durable, high-excursion driver that enhances responsiveness while minimizing distortion.

In summary, the Velodyne Acoustics VDR-12 and VDR-10 subwoofers represent the cutting edge of audio technology, offering powerful, deep bass and a host of features designed to enhance the listening experience. With intelligent room optimization, advanced amplification technologies, and customizable settings, these subwoofers cater to audiophiles and casual listeners, providing top-tier performance in a stylish package. Whether for a home theater or a music setup, either model remains an exceptional option for those seeking unparalleled sound quality.
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