AE-1999 Feedback Suppressor ( Bộ chống hú AE-1999)

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AE-1999 is a digital automatic feedback suppressor with high performance price ratio. The device allows storage of 10 groups of data for needs of tone quality control in 10 different scenarios. During suppression process the attenuation range may be as low as -48dB. When feedback is detected, the local device will quickly and automatically analyze and lock the feeedback frequency by using its advanced DSP algorithm and determine the frequency point, frequency bandwidth and attenuation of the notching filter, and will save the processing results.  Since the device is able to control the frequency bandwidth of notching filter and only feedback signal is filtered, the music signal is in no way damaged and the device can provide very high acoustic fidelity.

  • 64/128 SuperSampling, 24-bit A/D and D/A conversion, high resolution
  • Each track allows automatic search for 12 channel feedback, intelligent processing
  • Loop technology, perfect sound quality, no noise, high-speed negative feedback suppression.
  • Feedback suppression is used across the entire frequency band, with a built-in high-speed DSP processor and feedback suppression algorithm that minimizes howling without causing distortion.
  • Frequency conversion technology, anti-humming, round and stable sound, no drift or dry phenomenon.
  • No need to install, no need to debug, simple operation, automatic operation mode.
  • Suppresses feedback before it occurs
  • Automatically adapts to the acoustical situation
  • Up to 12 dB additional gain before feedback occurs
  • Balanced line or microphone input with phantom supply
  • Prompt and easy default processing and complete feedback suppression performance
  • In single-point mode, the device will automatically search for and lock notch frequency until the device is manually reset or reconfigured.
  • In manual mode, the user can set all parameters of 2×12 filters, including their frequency and Q value, etc.
  • Servo balanced input and output, gold plated XLR and TRS terminals
  • Two modes (SING and AUTO) available on each filter
  • Two parallel processing modules, the left and right channel may be adjusted independently or in parallel.
  • 24-bit high-performance DSP, ensuring signal resolution and dynamic range
  • Soft start of switches, free of knocking sound, noise gating function
  • Backlit 2×16 character LCD
  • 2×8LED level display, capable of displaying input or output level
  • High-quality SMD components and automatic SMD welding and online testing technologies ensure high quality and reliability of the product.
  • Specialized internal power supply system.
Number of Input Channel 2 channels, (2 XLR, 2 1/4″ TRS)
Number of Output Channel 2 channels, (2 XLR, 2 1/4″ TRS)
Input Impedance Unbalanced 10kΩ/balanced 20kΩ
Output Impedance 20Ω (Cân bằng)
Maximum Input Level 4V (VPP), 10.5dBu
Maximum Output Level 4V (VPP), 10.5dBu
Sampling Frequency 48kHz
Gain 0dB(+4dB gear), 12dB(-10dBV gear)
Suppression Time 0.3s@1kHz
Audio Gain > 9dB
Dynamic Range 105dB, A weighting
Frequency Response 18Hz-20kHz, ±0.5dB
CMRR ≥55dB(+4dBu gear), ≥75dB(-10dBV gear)
Crosstalk ≤97dB
Distortion+Noise ≤0.0025(@1kHz, +4dBu)
SNR 100dB, A weighting, refer to +4dBu
Number tolerance <0.5%
Power Supply 100V-240Vac  50/60Hz
Power Consumption 8W
Fuse 250VAC
Machine Dimensions (L×W×H) 482×152×45(mm)
Package Dimensions (L×W×H) 515×245×75(mm)
Gross Weight 2.2kg
Net Weight 1.7kg

Pls contact:


2Fl Hoa Phat Building, 257 Giai Phong Str, Dong Da Dist, Hanoi

Telephone: (+84)24 37344174;  Fax: (+84)24 37344175

Mobile: 0983 368 386