M I C I N P U T :
Floating balanced, Pin 2 Hot
Impedance
~ 4.2k
Ω
Balanced
Maximum Level
0.25Vrms, Gain = 30dB
Gain Adjustment Range
+0dB to 60dB
Phantom Power
+48VDC, applied to XLR pins 2 and 3 through
6.81k
Ω
resistors
CMRR
>40dB, typically 55dB
EIN
-125dBu, 22Hz-22kHz, 150
Ω
source impedance
L I N E I N P U T :
Floating balanced, TIP Hot
Impedance
10k
Ω
unbalanced, 20k
Ω
balanced
Maximum Level
>+21dBu, balanced or unbalanced
Gain Adjustment Range
-15dB to +45dB
CMRR
>40dB, typically 55dB
I N S E R T ( 1 / 4 ” T R S ) :
Normalled: tip is Send, ring is Return
Ring: Impedance
>5k
Ω
Maximum Level
>+21dBu
Tip: Impedance
100
Ω
Maximum Level
>+21dBu, >+20dBm (600
Ω
load)
Noise
<-89dBu, unweighted (20Hz-20kHz);
LINE GAIN Control set to 0dB
Distortion
<0.01% THD, 20Hz-20kHz, +10dBu
LINE OUTPUT (1/4” TRS):
Balanced/Unbalanced
Impedance
100
Ω
unbalanced, 200
Ω
balanced
Maximum Level
>+21dBu, >+20dBm (600
Ω
load)
Gain Adjustment Range
-30dB to +10dB
Noise
<-85dBu unweighted (20Hz-20kHz); Both Gain Controls
set for 0dB, all processing controls OFF
Frequency Response
20Hz - 20kHz, +0.5/-0.5dB
Distortion
<0.08%THD, 20Hz-20kHz, +10dBu, all Processing
Controls OFF
C O M P R E S S O R :
Threshold Range
-40dBu to +20dBu
Threshold Characteristics
OverEasy®
Compression Ratio
>4:1 For input levels beyond 20dB above threshold
Maximum Compression
30dB
Attack Time
Program-Dependent; >1s for small level increases,
down to 10ms for large increases
Release Time
Program-Dependent; adjustable between approximately
1dB/Sec and 75dB/Sec
Distortion
Typically <0.05%THD, 20Hz-20kHz, 15dB G/R, +10dBu
Output, DENSITY @ 0
SMPTE Intermodulation Distortion <0.05%; 60Hz/7kHz 4:1, 15dB G/R, +10dBu Output Level,
DENSITY @ 0
D E - S S E R :
Characteristic
Wideband Gain Reduction
Frequency Range
800Hz to 10kHz High Pass, 12dB/octave
Release Time
Program-Dependent approximately 1ms/dB
E N H A N C E R :
HF Detail Characteristic
Program-controlled shelving equalizer, approximately
15dB maximum HF boost
LF detail Characteristic
Bell-shaped boost @ 80Hz, bell-shaped cut @ 250Hz,
ratio is approximately 2:1
E X P A N D E R / G A T E :
Threshold Range
OFF to +15dBu
Expansion Ratio
Adjustable 1.5:1 to 10:1
Maximum Depth
>50dB
Attack Time
Program-Dependent, approximately 2ms (at maximum
attenuation)
Release Time
Program-Dependent, approxiamtely 10ms/dB
D Y N A M I C R A N G E :
Typically 105dB
P O W E R S U P P LY :
Power Requirements
15 Watts
Operating Voltage
USA: 120VAC 60Hz, 100VAC 50/60Hz;
EU: 230VAC 50/60Hz
Operating Temperature
0°C to 45°C (32°F to 113°F)
P H Y S I C A L :
Dimensions
1.75” x 5.75” x 19” (4.5cm x 14.6cm x 48.5cm)
Weight
Net Weight: 4.5 lbs/2.04 Kg
Shipping Weight:
6.54 lbs/2.97 Kg
Specifications
s
s
s
s
s
dbx engineers are constantly working to improve the quality of our products. Specifications are, therefore subject to change without notice.
Channel Strip Processor
286s Mic Preamp
dbx Professional
Products
8760 S. Sandy Pkwy.
Sandy, Utah 84070
801.568.7660
PHONE
801.568.7662
FAX
801.568.7583
INT’L FAX
www.dbxpro.com
Part number: 18-0842
