- Home
- Audio Surveillance
- ETS DNR-4E Four Channel Economy DSP Based Noise Reduction Module / Interface
ETS DNR-4E Four Channel Economy DSP Based Noise Reduction Module / Interface
Description
ETS DNR-4E Four Channel Economy DSP Based Noise Reduction Module / Interface
The DNR-4E is a DSP (Digital Signal Processor) based background noise reduction unit. It is designed to digitally screen out voice from other (back ground) sounds picked up by microphones. The DNR-4 is also effective in eliminating microphone pre-amplifier noise. The DNR-4 is directly compatible with ETS microphones, base stations, other "line level" audio sources and connects directly to DVRs, I/P cameras, etc.
The DNR-1 is a four channel digital background noise reduction processor. It is designed to connect directly to any SM1 series microphone (or any line level input signal) and a DRV, I/P camera, etc. Note- the audio output of the DNR-1 is “line level″ (0db).
Key features:
- Standard RCA or 3.5mm jacks for connection to DVRs etc.
- Adjustable input and output “line Level″ level controls.
- ETS microphone or RCA line level input.
- ETS base station or RCA line level outputs.
- Euro-style connectors makes cable terminations fast and clean.
- 500-4Khz Frequency response
- Up to -40db noise reduction (depending on type of noise)
- LED power indicator.
- Power: 12VDC @ 100mA
- Reverse polarity protected.
- All power circuitry and cable runs protected with auto-reset type fuse.
- Black plastic ABS housing.
IMPORTANT
NOTE
All of ETS items are special built to order items. The moment the order is sent to ETS, they will start production/building. This will take around 1-2 weeks depending on the line of production, volume of your order, etc. Please plan accordingly. We will enter tracking as soon as it becomes available to us. If you have any questions feel free to contact the customer service team at customerservice@a1securitycameras.com or call us at 214-948-1300 x 411.
Popular Search
Related Products

ETS SM1 Flush Mount Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS ML1-C Covert Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS SM1-P High Performance Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS SM1-WPW Weather Proof Omni Directional Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS SM1-SF Remote Element Surveillance Microphone
Brand: ETS
- Audio Product Type : Surveillance Microphones
Customers Also Viewed

ETS ML1-SF Omni Directional Microphone - Flush Mount,Small Form Factor
Brand: ETS
- Direction : Omni-directional
- Color : White
- Mount Type : Flush Mount
- Audio Product Type : Surveillance Microphones

ETS SM5 Single Zone Audio Surveillance Kit
Brand: ETS
- Audio Product Type : Audio Surveillance Kits

ETS SMI-5 4 Zone Audio Surveillance Kit
Brand: ETS
- Audio Product Type : Audio Surveillance Kits

ETS SM5-EA Single Zone POE Audio Surveillance Kit for IP Cameras
Brand: ETS
- Audio Product Type : Audio Surveillance Kits

ETS ML1-S Surface Mount Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS SM6 Single Zone Audio Surveillance Kit
Brand: ETS
- Audio Product Type : Audio Surveillance Kits

ETS ML1-WS Weather Resistant Mountable Surveillance Microphone
Brand: ETS
- Audio Product Type : Surveillance Microphones

ETS SM1 Flush Mount Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS CSM8-SMA1 Single Zone 2-Way Audio Surveillance System - 10 Watt
Brand: ETS
- Environmental : Indoor
- Audio Product Type : Audio Surveillance Kits

ETS ML1-WPW Weather Proof Omni Microphone
Brand: ETS
- Environmental : Outdoor
- Audio Product Type : Surveillance Microphones

ETS ML1-C Covert Omni Directional Surveillance Microphone
Brand: ETS
- Direction : Omni-directional
- Audio Product Type : Surveillance Microphones

ETS EEM-1-WPW High Performance Microphone - Weatherproof
Brand: ETS

ETS ML1-FE Panel Mount Weather Proof Tamper Resistant Omni-directional Microphone
Brand: ETS
- Direction : Omni-directional
- Environmental : Outdoor
- Audio Product Type : Surveillance Microphones

ETS SM2 Single Channel Audio Interface for use with all SM1 series Microphones
Brand: ETS

ETS SM1-SF Remote Element Surveillance Microphone
Brand: ETS
- Audio Product Type : Surveillance Microphones

ETS ML1-W Weather Resistant Surface mount Omni-directional Microphone
Brand: ETS
- Direction : Omni-directional
- Color : Gray
- Environmental : Outdoor
- Audio Product Type : Surveillance Microphones

ACTi PMIC-0201 Passive Microphone Omnidirectional
Brand: ACTi
- Direction : Omni-directional

LTS LTA2002 Microphone with 45-inch Audio Cable for Cameras
Brand: LTS Security
- Color : White
- Cable Type : Audio&Video
- Length : 4ft

ETS DNR-1 High Performance DSP Based Noise Reduction Module
Brand: ETS