DBX 286S Microphone/Instrument Preamp Processor

DBX 286S Microphone/Instrument Preamp Processor Specifications

Microphone Input:
- Input: Floating balanced, Pin 2 Hot
- Impedance: ~4.2kΩ
- Maximum Level: 0.25Vrms, Gain = 30 dB
- Gain Adjustment Range: 0 dB to +60 dB
- Phantom Power: +48VDC, applied to XLR pins 2 and 3 through 6.81kΩ resistors
- CMRR: >40 dB, typically 55 dB
- EIN: -125 dBu, 22Hz-22kHz, 150Ω source impedance

Line Input:
- Input: Floating balanced, TIP Hot
- Impedance:
  - Balanced: 20 kΩ
  - Unbalanced: 10 kΩ
- Maximum Level: >+21 dBu, balanced or unbalanced
- Gain Adjustment Range: -15 dB to +45 dB
- CMRR: >40 dB, typically 55 dB

Insert:
- (¼-inch/6.35mm Jack): Normalled; tip is Send, ring is Return
- Ring: Impedance: >5 kΩ
- Maximum Level: >+21 dBu
- Tip: Impedance: 100 Ω
- Maximum Level: >+21 dBu, >+20 dBm (600 Ω load)
- Noise: <-89 dBu, unweighted (20Hz-20kHz); LINE GAIN Control set to 0 dB
- Distortion: <0.01% THD, 20Hz-20kHz, +10 dBu

Line Output:
- ¼-inch/6.35mm Jack: Balanced/Unbalanced
- Impedance:
  - Balanced: 200 Ω
  - Unbalanced: 100 Ω
- Maximum Level: >+21 dBu, >+20 dBm (600Ω load)
- Gain Adjustment Range: -30 dB to +10 dB
- Noise: <-80 dBu unweighted (20Hz-20kHz); Both Gain Controls set for 0 dB, all processing controls OFF
- Frequency Response: 20Hz to 20kHz, +0.5/-0.5 dB
- Distortion: <0.08%THD, 20Hz-20kHz, +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 10ms for larage increases
- Release Time: Program-Dependen; adjustable between approximately 1 dB/sec and 75 dB/sec
- Distortion: Typically <0.05%THD, 20Hz-20kHz, 15 dB G/R, +10 dBu Output, DENSITY @ 0
- SMPTE Intermodulation Distortion: <0.05%; 60Hz/7kHz 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 1ms/ dB

Enhancer:
- HF Detail Characteristics: Program-controlled shelving equalizer, approximately 15 dB maximum HF boost
- LF Detail Characteristics: Bell-shaped boost @ 80Hz, bell-shaped cut @250Hz, 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

Electrical:
- Power Requirements: 15W
- Operating Voltage: DO: 120VAC 60Hz, 100VAC 50/60Hz; EU: 230VAC 50/60Hz
- Operating Temperature: 0°C to 45°C (32°F to 113°F)

Physical:
- Dimensions (W x H x D): 483 x 44.5 x 14.6 mm / 19 x 1.75 x 5.75 inches
- Weight: 2.04 kg / 4.5 lbs

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