Radius 390 is a Passive Radiator type Powered Subwoofer by Monitor Audio with a frequency range of 30-120 Hz. It features 1 x 10" C-CAM Woofer, and powered by a 220 watts amplifier.
Radius 390 is a member of Monitor Audio 's Radius series of Powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.
Monitor Audio Radius Series Subwoofers
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Frequency Response
Monitor Audio Radius 390 has a Frequency response range of 30-120 Hz at ±3dB.
Here we have a comparison of how Radius 390's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
High Frequency
Subwoofer Speakers
Among all subwoofers in our database with a max MSRP price of 1500$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the Monitor Audio Radius 390's 30Hz:
Low-Pass CrossoverMonitor Audio Radius 390 has a variable Low-pass filter (LFP) which lets you choose a frequency level between 50-120 Hz in order to block any frequencies above that point from reaching the amplifier.
Inputs and Outputs
- PreampLevel Inputs: LFE, Stereo RCA
- SpeakerLevel Inputs: No
- SpeakerLevel Outputs: No
- Wireless: No
Monitor Audio Radius 390 External Dimensions and Weight
Monitor Audio Radius 390 has external dimensions of (Height x Width x Depth) 13-11/16 x 13 x 15-1/8inch (348.0 x 331.0 x 385.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of Monitor Audio Radius 390 is approximately 1274.4cm2 / 197.5inch2.
To get a better perspective on the real life size of Monitor Audio Radius 390, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
Monitor Audio Radius 390 Speaker Size Compared to a Compact Disc
Here we place the Monitor Audio Radius 390 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.
Monitor Audio Radius 390 Subwoofer next to a Media Stand
WeightThe Monitor Audio Radius 390 weighs 13.77kg / 30.3lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how Radius 390's weight compares with the average, max and min weights in its class.
Weight
All Subwoofer Speakers
Weight
Subwoofer Speakers under $1500
Cabinet type and Materials
Monitor Audio Radius 390 has a
Passive Radiator type cabinet.
Port Position
Monitor Audio Radius 390 is a side-firing port speaker
What's in the Box of Monitor Audio Radius 390?
Here are the items that are included inside the box of Radius 390:
Powered sub6-feet AC power cord10.75-feet Mono minijack cableOwners ManualImportant Safety Instructions
Recommended Accessories
Here is a list of accessories that we think you may need for the Monitor Audio Radius 390.
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.