Manufacturer's Part Number:
CLR-DSP
DXE Part Number:
WMT-58407-949
Audio Device Type:
DSP Unit
DSP Noise Reduction Control Type:
Four position
Audio Input Connector Type:
Mono 1/8 in. jack
Audio Output Connector Type:
Mono and Stereo 3.5mm jacks
Headphone Connector Type:
Mono 1/8 in. female jack
External Power Input Voltage:
12 Vdc
External Power Connector Type:
2.1mm
Quantity:
Sold individually.
West Mountain Radio ClearSpeech DSP Noise Reduction Processors are designed to be installed between your radio and your favorite external speaker.
Complex DSP algorithms filter all of the noise content of the incoming signal and greatly attenuate or completely remove hum, hiss, vehicle ignition, and power line noise, as well as heterodynes. The result: the ability to hear voice and CW audio clearly, with over 85 percent of the noise removed.
These units have a convenient volume-control knob that allows a user to adjust the speaker audio level for comfortable listening. This allows the radio's AF Gain control setting to be optimized for other uses, such as interfacing to a West Mountain Radio RIGblaster sound card interface.
Features include:
* Amplifier for speaker or headphone with volume control
* ClearSpeech adaptive DSP noise reduction for voice and CW
* Recognizes intermittent nature of CW and allows it to pass noise-free
* Adjustable noise reduction control
* Tone control
* 4 watt (into 4 ohms) power amplifier
* Sturdy aluminum case--ideal for mobile operation, as well as home station
* Powerpoles plug into any 12V supply
* Plugs into the speaker or headphone output on the radio
* 1/8 in. phone jack on rear can drive external 8 or 4 ohm loudspeaker or amplified computer speakers
* On/off switch with green indicator LED
* Red LED flashes to indicate digital overload clipping
Note: Whenever the DX Engineering "Documentation" tab is available, please look at the associated files for additional product information.
You've heard about DSP and how it helps to get those DX QSOs in the log book. Now experience it first hand with West Mountain Radio ClearSpeech DSP Noise Reduction Processors from DX Engineering!
Most Helpful Reviews
5 Customer Reviews for West Mountain Radio CLR-DSP - West Mountain Radio ClearSpeech DSP Noise Reduction Processors
Using this with an Older Radio
DX Engineering Verified Purchase
WMT-58407-949
Kenwood TS450 is a good radio, but doesn't have the much ability to knock down the garbage noise. So I bought the West Mountain CLRdsp for 199.00. I can tell you that running at 9 o'clock cuts down all the noise BIG TIME. I run the tone control at 12 o'clock. WOW, I can now pick out stations that previously I could barely hear(but not intelligible). SIMPLY WOW...the "worbeling" caused by the digitization of analog audio is easy to fix by decreasing the DSP filter setting a bit. Easy to set for any QSO. Also, this device is an automatic sampling device that samples what it hears and corrects it. So, there is sometimes unwanted noise, but after .5 seconds, the unit automatically removes it. Highly recommend for anyone with an older transceiver.
73 de KJ4WKL
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Reviewer:
DAVID
from AL
Date:
July 15, 2018
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Excellent Noise Reduction
DX Engineering Verified Purchase
WMT-58407-949
This unit does great noise processing. It can take a station at an S3 way down in the mud and make it sound like he is 10 over 9. Awesome noise reduction, works great on CW too! de K2CPU
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Reviewer:
BEN
from NY
Date:
March 27, 2018
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Excellent Noise Reduction Unit
DX Engineering Verified Purchase
WMT-58407-949
This is my second CLRdsp unit from West Mountain Radio, and I can confirm that this product very effectively and dramatically reduces noise, hiss, and static from received signals. I use my units with the older IC-735 and FT-747 transceivers I have in CW operation. They worked as advertised: the CW is passed unattenuated and undistorted, while the noise is greatly reduced. The CLRdsp is exceptionally well engineered, and I give it my highest recommendation. - Steve, AB2EW
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Reviewer:
STEPHEN
from NY
Date:
December 11, 2017
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Excellent little unit
DX Engineering Verified Purchase
WMT-58407-949
I have this unit hooked up to my IC-7100 and the DSP noise reduction is REALLY good on this thing. I feel like it makes it possible to copy otherwise impossible signals. My first unit died and was replaced no problem, so hopefully I don't have any more issues. I love this thing! It truly makes operating a joy when you don't have to listen so carefully with all of the noise that can sometimes be so prevalent. I took one star off for quality due to the original unit that died.
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Reviewer:
JAY
from CO
Date:
November 20, 2017
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Outstanding product
DX Engineering Verified Purchase
WMT-58407-949
I have a continuous noise problem at my QTH of 9+. The MFJ Noise Reducer gets it down from S3 to S0! It took me a while to learn how to tune it up, however. There is quite a big learning curve to get good at using it, but once you have it down, it is fantastic.
NOTE: you will need an AUX antenna outside for best results.
I highly recommend this for locations with big noise problems.
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Reviewer:
KENNETH
from IL
Date:
May 03, 2018
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