dbx DriveRack 442 User manual

8760 S. Sandy Pkwy.
Sandy, Utah 84070
Phone [phone]
Fax [phone]
Int’l Fax [phone]
[email protected]
http://www.dbxpro.com
A Harman International Company
18-0014-A 11/01
442
DriveRack
Complete Equalization Management System
®
The DriveRack® 442 Complete Equalization Management System is the latest product in
the DriveRack®line. The 442 is based on the same operating system as the DriveRack®
480 and offers the user four inputs and four outputs on XLR connectors. Each channel
has EQ in the form of a 9-Band Parametric or a 31-Band Graphic and Notch Filters. In
addition the 442 features a filter set that can be used to create a Highpass, Lowpass or
Bandpass filter. Dynamics processing is available on all channels with a
Compressor/Limiter that emulates the classic dbx 160. The output section of the 442
offers delay, output level and phase compensation. The 442 is also capable of running
dual real-time analyzers on channels three and four. A 480 master, a PC GUI, or a 480R
remote can control the 442. Any combination of 480s, 481s, 482s and 442s can be con-
trolled on a single DriveRack®network consisting of up to 100 units.
The 442 DriveRack continues the legacy DriveRack series, which has been created
by the company that has been redefining the standard of signal processing for more
than 30 years. dbx®Professional Products has created a product that caters to
numerous applications in tour sound and sound contractor requirements.
The 442 DriveRack was designed with the purpose and vision of providing four
independent channels of processing power that includes 31-Band Graphic equalizer,
as well as dbx’s own industry standard dynamics processing. All aspects of the
aforementioned features can be controlled by the included dbx Professional
Products Interactive DriveWare™ software. Software updates can also be down-
loaded instantly from www.dbxpro.com through the RS 232 port.
• 4 Input and 4 Outputs
• 31 band graphic or 9 band paramet-
ric equalizer on every input
• Time Alignment Delay
• Compressor/Limiter on every output
• Multi-level Security System
• Separate House and Show EQ with
individual lockouts
•Triple redundant back up of all para-
meters when running network, 480R
and GUI
•TYPE IV™ Conversion System
•Electronically balanced/RF filtered
XLR Inputs and Outputs
•Proprietary RS-485 Control Network
•RS-232 PC Interface for computer dis-
play and configuration
®

Inputs
Number of Inputs: 4
Connectors: Female XLR
Type: Electronically balanced/RF filtered
Impedance: >40k
Ω
Maximum Input Level: Hardware selectable for +30, +22, +14, dBu
CMRR: >40 dB typical, >55 dB at 1kHz
Outputs
Number of Outputs: 4
Connectors: Male XLR
Type: Electronically balanced, RF filtered
Impedance: 120
Ω
Output Transformers: Optional
Max Output Level: +25.5 dBu into 1k
Ω
+22dBu into 600 Ω
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, 9dB input gain
Frequency Response: 20Hz- 20kHz, +/-0.5dB
Interchannel Crosstalk: <-85dB at 1kHz, 0dB input gain
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: 4 fixed per channel
Delay
Length: 340ms/channel
Dynamics
Type: Compressor/Limiter with PeakStopPlus™
Attack/Release: Program Dependent
Linking: All 4 bands are linkable
Phase Compensation
Number: One per output channel
Amount: 0-180 degrees phase shift
Output Polarity: Reversible
Miscellaneous
Output Transformers: Optional
Network: Proprietary RS-485 Backbone
GUI: RS-232 interface for computer display and configuration
ROM Upgrade: Flash upgradeable through RS-232
Power Requirements
Watts: 100-240V - 50/60 Hz - 35 Watts
Dimensions
Dimensions: Height- 3.5” X Width- 19” X Depth 12.15”
Weight 10 lbs.
Shipping Weight: 11.5 lbs.
DriveRack
Complete Equalization Management System
442
®
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 [phone]
Fax [phone]
[email protected]
http://www.dbxpro.com
A Harman International Company