Figure 2: Installation using speaker-level (from amplifier) inputs
POWER

Congratulations!

Congratulations on your purchase of a Velodyne VA-1250X sub- woofer system. This system represents the state of the art in accurate low frequency reproduction. Read and follow the instruc- tions below to insure safe and proper system operation.

Warning!

To prevent fire or shock hazard, do not expose this equipment to rain or moisture. To avoid electrical shock, do not open speaker enclosure or amp chassis cover. Please observe all warnings on the equipment itself. There are no user serviceable parts inside. Please refer all service questions to your authorized Velodyne dealer.

Prior to installation

Please unpack the system carefully. Remove all staples used to seal the carton as they can scratch the cabinet. Please save the carton and all packaging materials for future use. Record the serial number in the space provided on the warranty card for future reference.

Product Features & Controls

12" forward firing woofer with 2-1/2" voice coil & 70 oz. magnet

15" downward firing passive radiator

Built-in 250 watt (RMS) power amplifier

Adjustable (40 to 120Hz) low-pass crossover with bypass option

Selectable (80 or 100Hz) high-pass crossover

Line-level inputs & outputs

Speaker-level inputs & outputs with 5 way binding posts

Signal sensing auto turn on/off with bypass option

Variable volume control

Variable phase control (0 to 180 degrees)

Two position audio/video listening selection switch (+3dB, video)

Response, 22 Hz to 120 Hz, +/- 3dB

Magnetically shielded for video use

Dual staggered low-pass crossover; 12dB/octave initial, 24dB/ octave ultimate

Gain compression circuit to protect woofer from over excursion

Input overload protection

Thermal power sensing to protect woofer's voice coil from burnout

Power on LED (green)

continued. . .

1

Interconnect cables

When installing your VA-1250X using the line-level inputs/outputs, you should use standard shielded phono cables. Always keep the lines as short as practical to minimize noise.

When using the speaker-level inputs/outputs, use the same quality speaker cable to your subwoofer as you run to your satellites.

Placement

The VA-1250X operates at very low frequencies which are primarily omni-directional. While it is recommended that the subwoofer be placed on the same plane as the satellite speakers, room and system conditions often dictate otherwise. Ask your dealer for help in placement.

 

SERIES

 

 

 

 

 

Audio/Video Subwoofer System

 

 

 

 

VOLUME

 

LOW-PASS

 

 

 

 

PHASE CROSSOVER

 

 

 

5

 

 

90

80HZ

 

 

WARNING: TO REDUCE THE RISK OF

 

 

 

 

FIRE OR ELECTRIC SHOCK DO NOT EXPOSE

4

6

 

90HZ

70HZ

 

 

THIS APPLIANCE TO RAIN OR MOISTURE

3

7

60

120

 

 

 

CAUTION!

 

 

 

100HZ

60HZ

 

 

2

 

8

110HZ

50HZ

 

 

 

 

 

30

 

 

 

 

9

150

 

 

 

RISK OF ELECTRIC SHOCK

1

 

 

 

 

 

POWER 0

10

 

120HZ

40HZ

 

 

DO NOT OPEN

 

0180

NORMAL/BYPASS

 

 

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

 

AUTO / ON

VIDEO/AUDIO

 

 

 

 

 

 

LOWPASS

 

MADE IN USA

 

 

 

 

 

CROSSOVER

 

 

 

 

H I G H PA S S 1 0 0

80

 

117 V ~

 

 

 

 

60 Hz

 

 

 

 

 

 

 

3 A

Serial # Label

 

 

 

IN

 

 

 

 

 

 

 

 

 

 

OUT

 

RIGHT

IN

OUT

LEFT IN

 

 

 

 

 

 

 

 

 

Velodyne Acoustics, Inc.

 

 

 

 

 

 

 

San Jose, CA 95112

 

 

 

OUT

 

 

 

 

 

 

 

MAIN OUTPUTS

 

 

 

 

 

 

(speaker-level)

 

 

 

INTEGRATED AMP / RECEIVER

 

 

 

 

 

 

 

SATELLITE SPEAKERS

 

 

 

 

 

23456789

 

 

Page 6
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Velodyne Acoustics VA-1250X owner manual Congratulations, Product Features & Controls, Interconnect cables, Placement

VA-1250X specifications

Velodyne Acoustics has long been a pioneer in the world of audio technology, and their VA-1250X model exemplifies this legacy with a blend of innovative features and impressive performance. Designed for audiophiles and casual listeners alike, the VA-1250X provides an exceptional listening experience, making it a standout choice in the modern audio market.

One of the main features of the VA-1250X is its powerful Class D amplifier. With an output of 1250 watts peak power, this amplifier ensures that the sound produced is not only loud but also maintains clarity and detail across all frequencies. The efficient design of the Class D amplifier minimizes energy consumption while maximizing output, catering to both performance and environmental consciousness.

At the heart of the VA-1250X are Velodyne’s signature Advanced Digital Signal Processing (DSP) technologies. This sophisticated DSP works to optimize the audio signals, providing a clean and distortion-free sound even at high volume levels. This means that users can enjoy their favorite music, movies, or games without worrying about losing audio fidelity, even in challenging acoustic environments.

The VA-1250X also boasts a robust driver setup that includes a high-excursion composite cone woofer. This design allows for deeper bass response, providing a rich and immersive experience that is particularly noticeable in bass-heavy genres. The enclosure is engineered to reduce resonance, further ensuring that the sound remains pure and impactful.

Another key characteristic of the VA-1250X is its adjustable crossover frequency and phase control. This capability allows users to customize the audio output to better integrate with their existing speaker systems, catering to personal preferences and specific room acoustics. With multiple input options, including RCA and XLR connections, the VA-1250X is versatile enough to connect seamlessly with a variety of audio setups.

In summary, Velodyne Acoustics’ VA-1250X combines a powerful Class D amplifier, advanced digital signal processing, and a thoughtfully designed driver system to deliver an unparalleled audio experience. Its adaptability and performance make it an excellent choice for anyone looking to elevate their home audio system, whether for casual listening or critical sound reproduction. With the VA-1250X, Velodyne continues to push the boundaries of audio technology, promising satisfaction for enthusiasts and everyday users alike.