Appendix A

 

DriveRack

Specifications ( 482 DriveRack™)

Inputs

4 (Inputs 3 or 4 can be selected as an RTA mic input)

Number of Inputs:

Connectors:

Female XLR

Type:

Electronically balanced/RF filtered

Impedance:

>40kΩ

Maximum Input Level:

Hardware selectable for +30, +22, +14, dBu

Max input RTA Level:

-10 dBu

CMRR:

>40 dB typical, >55 dB at 1kHz

Input Gain Range RTA:

10 dB to 70 dB w/60 dB typical

Outputs

8

 

Number of Outputs:

 

Connectors:

Male XLR

Type:

Electronically balanced, RF filtered

Impedance:

120Ω

Output Transformers:

Optional

Max Output Level:

+25.5 dBu into 1kΩ

 

+22dBu into 600Ω

A/D Performance

dbx Type IV™ Conversion System

Type:

Dynamic Range line:

>112 dB unweighted, 115 dB A-weighted

Type IV™ dynamic range:

127 dB with transient material,

 

A-weighted, 22kHz BW

 

125 dB with transient material,

 

unweighted, 22kHz BW

 

119 dB typical with program material,

Sample Rate:

A-weighted, 22kHz BW

48kHz

A/D Wordlength:

24 bits

D/A Performance

112 dB unweighted, 115 dB A-weighted

Dynamic Range:

Sample Rate:

48kHz

D/A Wordlength:

24 bits

System Performance

48 bits

Internal Wordlength:

THD + Noise:

0.003% typical at +4dBu, 1kHz, 9dB input gain

Frequency Response:

20Hz- 20kHz, +/-0.5dB

Interchannel Crosstalk:

<-85dB at 1kHz, 0dB input gain

Pre EQ

One 31-band Graphic EQ per input channel, or

Type:

 

9 band Parametric EQ per input channel

Range:

RTA can be substituted for EQ in channels 3 and 4

+/-12 dB range

Notch Filters

1-5 per input channel not to exceed 10 for all input channels

Number:

Pre Delay

680ms/channel

Length:

Crossover

1x2, 1x3, 1x4, 1x5, 1x6

Type:

 

2x3, 2x4, 2x5, 2x6, 2x7, 2x8, 3x4, 3x5, 3x6, 3x7, 3x8, 4x6, 4x8

Filter Type:

Butterworth, Bessel, or Linkwitz-Riley

Slope:

6, 12, 18 or 24 dB/octave for Butterworth or Bessel filters

 

12, 24, 36 or 48 dB/octave for Linkwitz-Riley filters

Post EQ

Parametric

Type:

Number:

4 EQ bands per output channel

Range:

+/-15 dB range

®

98

DriveRack™ User Manual

 

 

Page 106
Image 106
dbx Pro 480 user manual Specifications 482 DriveRack

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.