DBX DriveRack 480 EQ and Speaker Control Processor

No longer available at zZounds
31 band graphic or 9 band parametric equalizer, Dual Real Time Audio Analyzers

At the heart of the DriveRackĀ® system is the 480. The 480 includes 4 inputs and 8 outputs which can be tailored for any configuration. By including every form of processing necessary to drive the signal from the mixer to the power amps, such as pre-crossover EQ, notch filters, speaker delay, multiple crossovers, speaker compensation equalizer, driver alignment delay, and compression/limiting, the 480 is truly the only box you'll need for any sound system application. Two real time analyzers can be run simultaneously with RTA source inputs capable of being remotely switched on the fly. The 480 is fully programmable from the front panel, with the 480R remote control, or through a computer via the GUI port.


4 Inputs and Outputs with routing

31 band graphic or 9 band parametric equalizer on every input (pre-crossover)

Dual Real Time Audio Analyzers

Butterworth, Bessel or Linkwitz-Riley crossover filters

27 Different Crossover Configurations

Time Alignment and Transducer Alignment Delays

Compressor/Limiter on every output

Speaker Compensation EQ (post crossover)

Multi-level Security System

Separate House and Show EQ with individual lockout

Triple redundant back up of all parameters when running network, 480R and PC GUI

TYPE IV Conversion System

Electronically balanced/RF filtered XLR Inputs and Outputs

Proprietary RS-485 Control Network

RS-232 PC Interface for computer display and configuration


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

Connectors: Female XLR

Type: Electronically balanced/RF filtered

Impedance: >40k ohm

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


Number of Outputs: 8

Connectors: Male XLR

Type: Electronically balanced, RF filtered

Impedance: 120ohm

Output Transformers: Optional

Max Output Level: +25.5 dBu into 1kohm
+22dBu into 600ohm

A/D Performance
Type: dbx Type IV Conversion System

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, A-weighted, 22kHz BW

Sample Rate: 48kHz

A/D Wordlength: 24 bits

D/A Performance

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

Sample Rate: 48kHz

D/A Wordlength: 24 bits

System Performance

Internal Wordlength: 48 bits

THD + Noise: 0.003% typical at +4dBu, 1kHz, 0dB input gain

Frequency Response: 20Hz- 20kHz, +/-0.5dB

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

Pre EQ

Type: One 31-band Graphic EQ per input channel, or 9 band Parametric EQ per input channel
RTA can be substituted for EQ in channels 3 and 4

Range: +/-12 dB range

Notch Filters

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

Pre Delay

Length: 680ms/channel

Crossover: Type: 1x2, 1x3, 1x4, 1x5, 1x6, 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

Type: Parametric

Number: 4 EQ bands per output channel

Range: +/-15 dB range

Type: Compressor/Limiter with PeakStopPlus

Attack/Release: Program Dependent

Linking: All 8 bands are linkable

Post Delay (Driver Alignment)
Length: 170 ms per output channel

Pink Noise Generator
Position: Pink noise inserted on selected input(s)

Phase Compensation
Number: One per output channel

Amount: 0-180 degrees phase shift

Output Polarity: Reversible


Transformers: Optional

Network: Proprietary RS-485 Backbone

GUI: RS-232 interface for computer display and configuration

RTA Microphone: Optional

ROM Upgrade: Flash upgradeable through RS-232

Power Requirements: 100-240V - 50/60 Hz

Watts: 35 Watts

Dimensions (H x W x D): 3.5 x 19 x 12.15 in.

Weight: 11lbs.

For support or warranty questions, please contact the manufacturer:
Phone: 844-776-4899

No longer available at zZounds

In most cases, a product is unavailable because it has been discontinued by the manufacturer