DriveRack™

Detailed Parameters

Section 4

Scale 62dB or 24db

The scale parameter is used to select the resolution and range of the display. A setting of 62db has a greater range but the 24dB setting displays at a higher resolution.

Display Run/Hold

The display parameter is used to either let the RTA display run or hold the display for a more accurate reading.

4.3 Notch Filters (N)

All four inputs of the 480, 481 and 482 DriveRack™ offer assignable Notch Filters. The notch filter is the perfect tool for dropping out undesirable frequencies that may appear in the input signal. Ten Notch filters are available, and up to 5 can be used on a single channel.

Notch On/Off

Turns the notch filters on and off.

Frequency (1 to 5) 20 to 20K

Selects the desired notch filter frequency of the selected notch filter.

Q 16 to 128

Selects the Q of the selected notch filter.

Level -36 to 6 dB

Sets the level of the selected notch filter. Set to +6dB to help find unwanted feedback, then set to -3dB to -36dB to remove.

4.4 Pre Crossover Delay (DLY)

Each input channel of the 480, 481 and 482 DriveRack™ units offer a room channel delay effect. The channel delay effect can be used to compensate signal delay drop-out, which results from distance separation of loudspeakers.

Delay On/Off

Turns the delay on and off.

Units - Seconds, Feet or Meters

Selects the unit of measurement for the delay.

Length

Selects the amount of delay. Delay length will correspond directly with the selected unit of measurement. Delay lengths include: 682.65 milliseconds, 769.35 feet or 234.15 Adjustments can be in 20 micro-second increments.

4.5 CROSSOVER (XOVER)

To accommodate any audio application, the 480, 481 and 482 DriveRack™ units offer numer- ous crossover options. There are three main types of configurations found in the crossover sec- tion. They are: Wires, Filters and Crossovers. The Wire modules simply route the signal to the appropriate output with no processing. The filter module allows the user to select a Wire,

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dbx Pro 480 user manual Notch Filters N, Pre Crossover Delay DLY
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480 specifications

The dbx Pro 480 is a professional-grade dynamics processor renowned for its versatility and exceptional performance in various audio applications. Designed for both live sound and studio environments, the dbx Pro 480 stands out as an essential tool for sound engineers and musicians alike.

One of the main features of the dbx Pro 480 is its dual-channel operation, which allows users to process two audio signals simultaneously. This functionality makes it particularly advantageous for stereo mixes, providing the ability to manage dynamics across left and right channels cohesively. The unit employs patented dbx OverEasy compression technology. This unique approach to compression allows for smooth transitions between compression and limiting, preventing abrupt changes in audio levels that can disrupt the listening experience. The result is a more musical sound, making it ideal for vocals, instruments, and other dynamic sources.

Additionally, the dbx Pro 480 boasts comprehensive control options, including adjustable ratio, threshold, attack, and release parameters. This level of control enables users to tailor the dynamics processing to fit specific audio material, whether subtle shaping or more aggressive control is required. The inclusion of a high-pass filter on the sidechain input further enhances its versatility, allowing for frequency-dependent dynamics processing that can be particularly useful in managing low-end rumble or controlling sibilance in vocals.

Another notable characteristic of the dbx Pro 480 is its robust build quality, designed to withstand the rigors of both studio and live environments. The device features a rugged metal chassis that protects its internal components while providing reliable performance under various conditions. Additionally, high-quality XLR inputs and outputs ensure that audio signals remain clean and free of interference.

In terms of connectivity, the dbx Pro 480 is equipped with balanced connections to minimize noise and signal degradation, making it suitable for professional setups. Its intuitive front-panel interface includes LED metering for easy monitoring of input and output levels, facilitating prompt adjustments on the fly.

In conclusion, the dbx Pro 480 is a powerful dynamics processor that blends advanced technology with user-friendly features. Its dual-channel processing, unique compression algorithms, and robust build quality make it a top choice for audio professionals seeking to enhance their sound with precision and control. Whether in a recording studio or a live performance setting, the dbx Pro 480 continues to be an invaluable asset in the audio processing landscape.
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