Dbx Pro Driverack 4800 Users Manual

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8760 S. Sandy Pkwy.

Sandy, Utah 84070

Phone (801) 568-7660

Fax (801) 568-7662

Int’l Fax (801) 568-7583

customer@dbxpro.com

http://www.dbxpro.com

A Harman International Company

18-0335 -A 4/05

®

Designed to provide incredible flexibility, sonic excellence and intuitive control for performance

applications, the DriveRack®4800 is the new flagship of the hugely successful DriveRack family. From

the powerful 96 kHz DSP engine and standard analog and digital I/O, to the QVGA display and

multiple control surfaces, the 4800 provides all the processing, flexibility and control necessary for both

installation and live use. The menu-based Wizard function enhances its capability by making the

DriveRack 4800 easier to use providing a menu based setup procedure including system configuration,

Auto-EQ, and an Advanced Feedback Suppression™(AFS™) Wizard.

The DriveRack 4800 is the next generation of the famous DriveRack family, and like its predecessor

it is engineered to provide “Everything you need between the mixer and the power amps”. In keep-

ing with this philosophy the 4800 includes four inputs and eight outputs with both analog and dig-

ital connectivity; a CobraNet option rounds it out offering greater flexibility for large installations.

The 96 kHz processing engine is capable of offering insert processing functions to customize the pro-

cessing path for your application, in addition to the standard system processing functions all with

extremely low latency and extended frequency response. From Signal Routing, EQ, and Bandpass

Filters, to classic dbx®Dynamics and Feedback Suppression all the processing is available and with

the sonic excellence that you would expect from the world's leading system processing manufacturer.

With all this processing power available, control is of paramount importance. The DriveRack pro-

vides a full color display to speed manual operation; this combined with intuitive front panel con-

trols, an easy to use GUI and optional wall panel controllers means that whether your application is

tour sound or installation, the DriveRack 4800 has what it takes. For more information please visit

www.driverack.com or www.dbxpro.com.

• 48 and 96 kHz operation

• Color QVGA Display

• 4 analog and AES/EBU inputs

• 8 analog and AES/EBU outputs

• Optional CobraNet I/O

• Optional Jensen®I/O Transformers

• Full Bandpass Filter, Crossover and

Routing Configurations with Bessel,

Butterworth, and Linkwitz-Riley filters

• 31-Band Graphic and 9-band

Parametric EQ on every input

• 6-band Parametric EQ on every output

• Loudspeaker Cluster and Driver

Alignment Delays

• Selectable DSP inserts on all inputs

and outputs including Classic dbx

Compression, Limiting and Advanced

Feedback Suppression among others

• Ethernet networking control

• dbx ZC wall panel control

Analog Inputs: (4)

Connectors: Female XLR

Type: Electronically balanced, RF filtered

Impedance: >50k ohms

Maximum Input Level: Software selectable for: +28, +26, +24, +22, +20, +18, +16, +14 dBu

CMRR: >40 dB typical, >55 dB at 1 kHz

Digital Inputs: (4) AES/EBU Channels

Connectors: Female XLR

Type: Transformer Isolated, RF filtered

Impedance: 110 ohms

RTA Input: (1) Analog

Connectors: Female XLR

Gain range: 20 dB to 50 dB in 10 dB increments

Analog Outputs: (8)

Connectors: Male XLR

Type: Electronically balanced, RF filtered

Impedance: 30 ohms

Max Output Level: Software selectable for: +24, +22, +20, +12, +8, +4 dBu

Digital Outputs: (8) AES/EBU Channels

Connectors: Male XLR

Type: Transformer Isolated, RF filtered

Impedance: 110 ohms

A/D Performance

Type: dbx Type IV™ Conversion System

Dynamic Range: >113 dB unweighted,116 dB A-weighted

Type IV™ dynamic range: 126 dB with transient material,A-weighted,22 kHz BW

123 dB with transient material, unweighted,22 kHz BW

118 dB typical with program material,A-weighted,22 kHz BW

Sample Rate: 96 kHz

A/D Wordlength: 24 bits

D/A Performance

Dynamic Range: 112 dB unweighted, 115 dB A-weighted

Sample Rate: 96 kHz

D/A Wordlength: 24 bits

System Performance

Dynamic Range: 110 dB unweighted, 113 dB A-weighted

Internal Processing: 32 bit floating point

THD + Noise: 0.004% typical at +4 dBu, 1 kHz, 0 dB input gain

Frequency Response: 20 Hz- 20 kHz, +/-0.25 dB, <10 Hz- 50 kHz +0/-3dB @ 96kHz

Interchannel Crosstalk: <-85 dB at 1 kHz, 0 dB input gain

Processing

Pre EQ Type: One 31-band Graphic EQ on each input One EQ that is switchable

between 31-band Graphic and 9-band Parametric on each input

Range: +/- 15 dB

Input Insert Processing: Two selectable Insert Processing blocks per input

Type: Noise Gate,Compressor,Auto Gain Control,De-Esser,Sub-Harmonic

Synth, Notch filters and Advanced Feedback Suppression

Input Delay Length: Up to 682 mSec available

Routing/Mixing: 4-input mixer available at each output allowing any input to be sent or

mixed to any output

Output Insert Processing: Two selectable Insert Processing blocks per output

Type: Noise Gate,AutoWarmth®, Compressor,Auto Gain Control, Peak Limiter,

Sub-Harmonic Synth

X-Over Filter Configs: 1x1, 1x2,1x3, 1x4, 1x5, 1x6, 1x7, 1x8, 2x2,2x3, 2x4

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

Types: Bessel 6, 12, 18, 24, 36 and 48 dB per Octave

Butterworth 6, 12, 18, 24, 36 and 48 dB per Octave

Linkwitz-Riley 12, 24, 36, and 48 dB per Octave

Polarity: Positive and Negative

Phase Control: 0 to -180 degrees in 5 degree increments

Output Delay Length: 1365 mSec shared between the outputs

Miscellaneous:

I/O Transformers: Optional, Jensen®JT-11 & JT-123-dbx

CobraNet®I/O: Optional

Control: Ethernet, RS-232, Optional dbx ZC Wall Panels

Power Requirements: 100V to 240V 50/60Hz, 35 Watts

Dimensions: 3.5” x 19” x 12.15”

Weight: 11 lbs. (14 lbs. w/audio transformers)

Shipping Weight: 12.5 lbs. (15.5 lbs. w/audio transformers)

dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice.

FOR MORE INFORMATION CONTACT:

dbx Professional Products 8760 S. Sandy Pkwy. Sandy, Utah 84070

Phone (801) 568-7660 / Fax (801) 568-7662

customer@dbxpro.com / http://www.dbxpro.com

A Harman International Company

The Professional’s Choice In Signal Processing™