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COMPRESSORS · DYNAMICS

286s

Microphone Pre-amp Processor

The dbx® 286s is a full featured Channel Strip Processor that delivers a studio quality microphone/instrument preamplifier and four processors that can be used independently or in any combination. Why mic up vocals and instruments through a noisy, blurry mixer? The sonically pristine dbx 286s Mic Preamp has all the features you need, including wide-ranging input gain control, switchable +48V phantom power, and an 80Hz high-pass filter to remove low frequency hum, rumble or wind. Use the patented dbx OverEasy® compressor to transparently smooth out uneven acoustic tracks or deliver that classic "in your face" vocal performance that only a dbx compressor can. Eliminate vocal sibilance and high frequency distortion from instruments such as cymbals with the frequency tunable De-Esser. Fine-tune the Enhancer HF Detail control to add sparkle and crispness to your tracks and make adjustments to the LF Detail control to add fullness and depth to vocals and bass instruments while cleaning up the muddy low midrange frequencies. And, the separate threshold and ratio controls on the Expander/Gate allow you to subtly reduce headphone leakage or radically gate noisy guitar amps.

Frequency range
20 Hz – 20 kHz
FREQUENCY RANGE
Dynamic range
–
DYNAMIC RANGE
Weight
–
WEIGHT

Supplied and supported in Pakistan by KYAF, the official HARMAN Professional distributor.

AT A GLANCE

Specifications

20 Hz – 20 kHz
Frequency range
~4.2kΩ
Impedance
(line) Floating balanced, TIP Hot
Inputs
0dB to +60dB
Mic Preamp gain
>40dB, typically 55dB
CMRR
0.2Vrms, Gain = 30dB
Mic Preamp max input level
(line) -15dB to +45 dB
Input Gain Range
1/4" TRS: Normalled
Insert Connector
Mic Preamp ConnectorXLR Floating balanced, Pin 2 Hot
Mic Preamp Input Impedance~4.2kΩ
Mic Preamp gain0dB to +60dB
Mic Preamp Phantom Power+48VDC, applied to XLR pins 2 and 3 through 6.81kΩ resistors
CMRR>40dB, typically 55dB
Mic Preamp max input level0.2Vrms, Gain = 30dB
Mic Preamp Equivalent Input Noise (EIN)-125dBu, 22Hz-22kHz, 150Ω source impedance
Input Connectors(line) Floating balanced, TIP Hot
Input Impedance(line) 10kΩ unbalanced, 20kΩ balanced
Max Input(line) >+21dBu, balanced or unbalanced
Input Gain Range(line) -15dB to +45 dB
Insert Connector1/4" TRS: Normalled; tip is Send, ring is Return
Insert Impedance>5kΩ (ring-return); 100Ω (tip-send)
Insert Max Level>+21dBu; >+20dBm (600Ω load-tip)
Insert Noise<-84dBu, unweighted (20Hz-20kHz); LINE GAIN Control set to 0dB
Insert Distortion<0.01% THD, 20Hz-20kHz, +10dBu
Output Connectors1/4" Balanced/Unbalanced TRS Connectors
Output Impedance100Ω unbalanced, 200Ω balanced
Max Output>+21dBu, >+20dBm (600Ω load)
Gain Adjustment Range-30dB to +10dB
Noise<-80dBu unweighted (20Hz-20kHz); Both Gain Controls set for 0dB, all processing controls OFF
Frequency Response20Hz to 20kHz, +0.5, -0.5dB
THD<0.08%THD, 20Hz-20kHz, +10dBu, all Processing Controls OFF
Compressor Threshold Range-40dBu to +20dBu
Compressor Threshold CharacteristicOverEasy®
Compressor Ratio>4:1 For input levels beyond 20dB above threshold
Max Compression30dB
Compressor Attack TimeProgram-Dependent; >1s for small level increases, down to 10ms for larage increases
Compressor Release TimeProgram-Dependent; adjustable between approximately 1dB/sec and 75dB/sec
Compressor DistortionTypically <0.05%THD, 20Hz-20kHz, 15dB G/R, +10dBu Output, DENSITY @ 0
IMDSMPTE: <0.05%; 60Hz/7kHz 4:1, 15dB G/R, +10dBu Output Level, DENSITY @ 0
De-esser CharacteristicWideband Gain Reduction
De-esser Frequency Range800Hz to 10kHz High Pass, 12dB/octave
De-esser Release Time12dB/octave Program-Dependent; approximately 1mS/dB
Enhancer HF Detail CharacteristicProgram-controlled shelving equalizer, approximately 15dB maximum HF boost
Enhancer LF Detail CharacteristicBell-shaped boost @ 80Hz, bell-shaped cut @250Hz, ratio is approximately 2:1
Expander/Gate Threshold RangeOFF to +15dBu
Expander/Gate RatioAdjustable 1.5:1 to 10:1
Expander/Gate Max Depth>50dB
Expander/Gate Attack TimeProgram-Dependent, approximately 2mS (at maximum attenuation)
286s266xs
Input Connectors(line) Floating balanced, TIP Hot1/4" TRS and female XLR (pin 2 hot)
Input Impedance(line) 10kΩ unbalanced, 20kΩ balanced40kΩ balanced/unbalanced
Max Input(line) >+21dBu, balanced or unbalanced>+22dBu Balanced or Unbalanced
Output Connectors1/4" Balanced/Unbalanced TRS Connectors1/4" TRS, male XLR (pin 2 hot)
Output Impedance100Ω unbalanced, 200Ω balanced+4dBu: 100Ω balanced, 50Ω unbalanced; -10dBu: 1kΩ balanced, 500Ω unbalanced
Max Output>+21dBu, >+20dBm (600Ω load)>+21dBu balanced/unbalanced into 2kΩ or greater; >+18dBm balanced/unbalanced (into 600Ω)
Compressor Threshold Range-40dBu to +20dBu-40dBu to +20dBu
Compressor Threshold CharacteristicOverEasy®Selectable OverEasy® or hard knee
Compressor Ratio>4:1 For input levels beyond 20dB above threshold1:1 to Infinity:1
Compressor Attack TimeProgram-Dependent; >1s for small level increases, down to 10ms for larage increasesScalable Program-Dependent AutoDynamic™
Compressor Release TimeProgram-Dependent; adjustable between approximately 1dB/sec and 75dB/secScalable Program-Dependent AutoDynamic™
Expander/Gate Threshold RangeOFF to +15dBu-60dBu to +15dBu
Expander/Gate RatioAdjustable 1.5:1 to 10:11:1 to 4:1
Expander/Gate Attack TimeProgram-Dependent, approximately 2mS (at maximum attenuation)<100µs

DESIGN

Everything at the back of the box.

dbx 286s, rear panel

FEATURES

What the 286s brings.

dbx 286s

The dbx® 286s is a full featured Channel Strip Processor that delivers a studio quality microphone/instrument preamplifier and four processors that can be used independently or in any combination. Why mic up vocals and instruments through a noisy, blurry mixer? The sonically pristine dbx 286s Mic Preamp has all the features you need, including wide-ranging input gain control, switchable +48V phantom power, and an 80Hz high-pass filter to remove low frequency hum, rumble or wind. Use the patented dbx OverEasy® compressor to transparently smooth out uneven acoustic tracks or deliver that classic "in your face" vocal performance that only a dbx compressor can. Eliminate vocal sibilance and high frequency distortion from instruments such as cymbals with the frequency tunable De-Esser. Fine-tune the Enhancer HF Detail control to add sparkle and crispness to your tracks and make adjustments to the LF Detail control to add fullness and depth to vocals and bass instruments while cleaning up the muddy low midrange frequencies. And, the separate threshold and ratio controls on the Expander/Gate allow you to subtly reduce headphone leakage or radically gate noisy guitar amps.

The dbx 286s offers a full compliment of metering and status LEDs to visually guide you to achieving the right sound. The floating balanced XLR Mic Input accepts balanced or unbalanced inputs to easily connect to professional and home studio microphones. The additional 1/4" TRS Line Input can accept balanced/unbalanced signals to process live electronic instruments or pre-recorded tracks at mixdown. Use the Insert jack to interface between the Mic Preamp and the signal processing sections to "loop out" to external processors (such as EQ or delay unit) or to mix the Mic Preamp's signal out to an external destination.

PLANNING A 286S SYSTEM?

Tell us the room. We'll size the system.

Send the space, the audience and the budget. A KYAF engineer will work out what you need and quote it delivered in Pakistan.

DBX PROFESSIONAL

286s

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