dbx Pro 481 DriveRack manual The Professional’s Choice In Signal Processing

Inputs
Inputs:	4
Connectors:	Euroblock
Type:	Electronically balanced/RF filtered
Impedance:	>40kΩ
Max Input Level:	Hardware selectable for +30, +22, +14, dBu
CMRR:	>40 dB typical, >55 dB at 1kHz
Outputs
Outputs:	8
Connectors:	Euroblock
Type:	Electronically balanced, RF filtered
Impedance:	120Ω
Max Output
Level:	+25.5 dBu into 1kΩ
	+22dBu into 600Ω
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
Dynamics
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
Miscellaneous
Output Transformers:	Optional
Network:	Proprietary RS-485 Backbone
GUI:	RS-232 interface for computer display and
configuration
Remote:	Optional dbx 480R
RTA Microphone:	Optional
ROM Upgrade:	Flash upgradeable through RS-232
Power Requirements
Watts:	100-240V - 50/60 Hz
	35 Watts
Dimensions
Dimensions:	Height- 1.75” X Width- 19” X Depth 7.90”
Weight	8 lbs.
Shipping Weight:	9.5 lbs.

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

The Professional’s Choice In Signal Processing

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