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dbx 286s Mic Preamp / Channel Strip Processor

Brand:|Model: 286S|Part # 246-123

The 286s Mic Preamp has all the features you need, including wide-ranging input gain control, switchable +48V phantom power, and an 80 Hz high-pass filter to remove low frequency hum, rumble or wind.
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Part # 246-123
  • Classic dbx Compression puts great sound within easy reach
  • Frequency tunable De-Esser reduces sibilance and high frequency distortion
  • Enhancer increases the detail and definition of the high and low frequencies
  • Program adaptive Expander/Gate
  • Insert jack allows you to add an external processor
  • Full compliment of meters and status LEDs
  • Precision detented controls

Product Details

dbx 286s Mic Preamp / Channel Strip Processor

Why mic up vocals and instruments through a noisy, blurry mixer when you can chose the dbx® 286s that delivers a studio quality microphone/instrument preamplifier. It's a full featured channel strip processor with four processors that can be used independently or in any combination. The 286s Mic Preamp has all the features you need, including wide-ranging input gain control, switchable +48V phantom power, and an 80 Hz 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.

dbx 286s status LEDs visually guide you to achieve 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. The cost and hassle of patching together multiple processors for use on one track can be frustrating. The dbx 286s provides you with all the mic processing you need in one box, with the shortest, cleanest signal path to keep your music sounding its best!

Mic Input: • Input: Floating balanced, Pin 2 Hot • Impedance: ~4.2k ohms • Maximum level: 0.25V RMS, Gain = 30 dB

Gain Adjustment: • Range: 0 dB to +60 dB • Phantom Power: +48VDC, applied to XLR pins 2 and 3 through 6.81k ohm resistors • CMRR: >40 dB, typically 55 dB • EIN: -125 dBu, 22 Hz-22 kHz, 150 ohm source impedance

Line Input: • Input: Floating balanced, TIP Hot • Impedance: 10k ohm unbalanced, 20k ohm balanced • Maximum level: >+21 dBu, balanced or unbalanced • Gain adjustment range: -15 dB to +45 dB • CMRR: >40 dB, typically 55 dB

Insert: • (1/4" TRS phone) Normalled; tip is Send, ring is Return • Ring: impedance: >5k ohm; Maximum level: >+21 dBu • Tip: Impedance: 100 ohm; Maximum level: >+21 dBu, >+20 dBm (600 ohm load) • Noise: <-89 dBu, unweighted (20 Hz-20 kHz) (Line gain control set to 0 dB) • Distortion: <0.01% THD, 20 Hz-20 kHz, +10 dBu

Line Output: • 1/4" TRS phone: Balanced/unbalanced • Impedance: 100 ohm unbalanced, 200 ohm balanced • Maximum level: >+21 dBu, >+20 dBm (600 ohm load) 
• Gain adjustment range: -30 dB to +10 dB • Noise: <-80 dBu unweighted (20 Hz-20 kHz); Both gain controls set for 0 dB, all processing controls OFF • Frequency response: 20 Hz to 20 kHz, +0.5/-0.5 dB • Distortion: <0.08% THD, 20 Hz-20 kHz, +10 dBu, all Processing Controls OFF

Compressor • Threshold range: -40 dBu to +20 dBu

Threshold • Characteristics: OverEasy® • Compression ratio: >4:1 For input levels beyond 20 dB above threshold • Maximum compression: 30 dB • Attack time: Program-Dependent; >1s for small level increases, down to 10 ms for larage increases • Release time: Program-Dependent; adjustable between approximately 1 dB/sec and 75 dB/sec • Distortion: Typically <0.05%THD, 20 Hz-20 kHz, 15 dB G/R, +10 dBu Output, DENSITY @ 0 • SMPTE intermodulation distortion: <0.05%; 60 Hz/7 kHz 4:1, 15 dB G/R, +10 dBu Output Level, density @ 0

De-Esser: • Characteristic: Wideband gain reduction • Frequency range: 800 Hz to 10 kHz High Pass, 12 dB/octave • Release time: Program-Dependent approximately 1 ms/dB

Enhancer: • HF Detail characteristic: Program-controlled shelving equalizer, approximately 15 dB maximum HF boost

LF Detail: • Characteristics: Bell-shaped boost @ 80 Hz, bell-shaped cut @250 Hz, ratio is approximately 2:1

Expander/Gate: • Threshold range: OFF to +15 dBu • Expansion ratio: Adjustable 1.5:1 to 10:1 • Maximum depth: >50 dB • Attack time: Program-Dependent, approximately 2mS (at maximum attenuation) • Release time: Program-Dependent, approxiamtely 10mS/dB • Dynamic range: Typically 105 dB

Overall System Specifications: • Power requirements: 15 watts • Operating voltage: DO: 120 VAC 60 Hz, 100 VAC 50/60 Hz • Temperature: 0°C to 45°C (32°F to 113°F) • Dimensions: 1.75" x 5.75" x 19" (4.5 x 14.6 x 48.5 cm) • Net Weight: 4.5 lbs (2.04 kgs).

dbx 286s Mic Preamp / Channel Strip Processor
  • Branddbx
  • Model286S
  • Part Number246-123
  • UPC691991401237
  • Product CategoryMicrophone Preamps & Channel Strips
  • Unit of MeasureEA
  • Product Rating
    (1 Reviews)
  • Weight6.6 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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