Velodyne Acoustics DLS-3750R Thank You for Purchasing a Velodyne, Troubleshooting and Service

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on the cabinet. We recommend using a damp cloth to clean the front, back and sides. Use a soft cloth with a good quality furniture polish to clean the hand-rubbed, black lacquer, painted top.

During normal conditions, the subwoofer may be left on continuously without any problems. If you plan to leave the unit unused for an extended period of time, we recommend that you turn off the unit by the master power switch on the rear panel.

Troubleshooting and Service

Before seeking service for your subwoofer, please re-check all systems. Following is a simple troubleshooting guide to assist you.

1.Verify that the unit is plugged in and power outlet used is active.

2.Is the power switch on?

3.Is unit receiving an input signal from your source?

4.Have all controls on subwoofer (volume, crossover, phase, etc.) been properly set?

5.If unit has been running at high levels, one of the protection circuits may be engaged.

6.Has the built-in amplifier overheated?

If the protection circuitry is active, the unit may cycle on and off until operating parameters return to normal. Under more serious conditions, the unit may shut off completely. Normal operation will return upon cooling, but you may be required to turn the power off and then on again to reset the unit.

The following conditions require service by a qualified technician:

1.The power cord has become damaged.

2.The unit does not appear to operate normally or exhibits a marked change in performance.

3.The unit has been exposed to water.

4.Some part of the cabinet or circuitry is physically damaged.

Thank You for Purchasing a Velodyne!

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Contents DLS-3500RTMDLS-3750RTMDLS-4000RTMand DLS-5000RTM Risk of Electric Shock Do not Open Product Features and Controls Prior to InstallationCongratulations DLS-R Series InstallationLOW-PASS Crossover Rear Panel ConnectionsRear Panel Connections Detailed Explanation Subwoofer Direct Power SwitchSpeaker Level Output/Line Level Output Interconnect Cables PlacementPage Usage Remote ControlOther action adventure movie content Care of Your Subwoofer Musical Style Suggested PresetThank You for Purchasing a Velodyne Troubleshooting and ServiceSpecifications Register. . . on Line . . . Its faster . . . and easier Other Velodyne Subwoofer Products

DLS-3500R, DLS-4000R, DLS-3750R, DLS-5000R specifications

Velodyne Acoustics has long established itself as a leader in audio technology, providing an extensive range of high-quality subwoofers, and the DLS series exemplifies this commitment. The DLS-3750R, DLS-4000R, DLS-3500R, and DLS-5000R subwoofers are designed to deliver powerful and clear bass, making them ideal for both home theater and high-fidelity audio enthusiasts.

The DLS series is built on Velodyne’s innovative engineering principles, featuring advanced digital signal processing (DSP) technology. This allows for precise tuning and optimization of sound performance, ensuring that users experience the best audio fidelity possible. Each model in the series boasts a unique combination of powerful amplifiers and high-performance drivers, which work together to produce deep, rich bass tones without distortion.

One of the standout features of these subwoofers is their robust build quality. The cabinets are constructed from dense MDF material, minimizing vibration and enabling clean sound reproduction. The series also includes high excursion woofers that ensure they can produce low frequencies with impressive accuracy, making them responsive to dynamic audio signals.

The DLS-3750R features a 375-watt peak power rating, providing ample punch for medium-sized rooms. In contrast, the DLS-4000R ramps up the performance with a 400-watt peak, making it suitable for larger spaces. The DLS-3500R, with its impressive 350-watt output, offers an excellent balance between size and power, while the DLS-5000R tops the lineup with an astounding 500-watt peak capacity, allowing it to fill even the most expansive environments with profound bass.

Each model also includes a variety of connectivity options. Featuring RCA inputs for easy integration into both two-channel and multi-channel systems, they accommodate a range of home audio setups. Additionally, the DLS series supports adjustable phase and low-pass filters, enabling users to customize their listening experience according to personal preferences and room acoustics.

In summary, the Velodyne Acoustics DLS series subwoofers—DLS-3750R, DLS-4000R, DLS-3500R, and DLS-5000R—represent a sophisticated blend of technology, performance, and build quality. With their advanced DSP technology, substantial power ratings, and versatile connectivity, they cater to audiophiles seeking exceptional low-frequency sound. Whether for enjoying music or enhancing movie experiences, these subwoofers offer the impressive bass response that Velodyne is renowned for, making them a worthy addition to any sound system.
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