Data Sheets

MIC INPUT: Floating balanced, Pin 2 Hot
Impedance ~ 4.2kΩ Balanced
Maximum Level 0.25Vrms, Gain = 30dB
Gain Adjustment Range +0dB to 60dB
Phantom Power +48VDC, applied to XLR pins 2 and 3 through
6.81kΩ resistors
CMRR >40dB, typically 55dB
EIN -125dBu, 22Hz-22kHz, 150Ω source impedance
LINE INPUT: Floating balanced, TIP Hot
Impedance 10kΩ unbalanced, 20kΩ balanced
Maximum Level >+21dBu, balanced or unbalanced
Gain Adjustment Range -15dB to +45dB
CMRR >40dB, typically 55dB
INSERT (1/4” TRS): Normalled: tip is Send, ring is Return
Ring: Impedance >5kΩ
Maximum Level >+21dBu
Tip: Impedance 100Ω
Maximum Level >+21dBu, >+20dBm (600Ω 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 100Ω unbalanced, 200Ω balanced
Maximum Level >+21dBu, >+20dBm (600Ω 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
COMPRESSOR:
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
DE-SSER:
Characteristic Wideband Gain Reduction
Frequency Range 800Hz to 10kHz High Pass, 12dB/octave
Release Time Program-Dependent approximately 1ms/dB
ENHANCER:
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
EXPANDER/GATE:
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
DYNAMIC RANGE: Typically 105dB
POWER SUPPLY:
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)
PHYSICAL:
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
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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
[e-mail]
www.dbxpro.com
Part number: 18-0842