Monitor Audio Radius 90 is a 2-way Passive Bookshelf speaker by Monitor Audio. It features a 1" Hard-Dome Tweeter and x 4" Woofer. The speaker has a frequency range of 80-35k Hz and a sensitivity of 83 dB.
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Frequency Response of the Monitor Audio Radius 90 Speaker
Monitor Audio Radius 90 has a Frequency response range of 80-35k Hz at ±3dB. With a minimum frequency of 80 Hz, it is hard to expect a strong bass response from Radius 90 so depending on your use case, using a subwoofer will significantly help to widen the response range.
Visit our Powered Subwoofers section to find out more about the available subwoofer options.
Here we have a comparison of how Radius 90's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
Impedance and Sensitivity
Monitor Audio Radius 90's nominal impedance level is
8 ohms and has a sensitivity of
83 dB.
Sensitivity
Bookshelf Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Monitor Audio Radius 90 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 83 dB, Monitor Audio Radius 90 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.
Check the amplifiers that are in a similar price range to the Monitor Audio Radius 90:
Input Type
Radius 90 features 5-Way post type connectors. Bi-amping and Bi-wiring are not possible.
Monitor Audio Radius 90 External Dimensions and Weight
Monitor Audio Radius 90 has external dimensions of (Height x Width x Depth) .
Weight
All Bookshelf Speakers
Available colors
Monitor Audio Radius 90 is available in White.
Wall Mounting
Radius 90 doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
Recommended Accessories
Here is a list of accessories that we think you may need for the Monitor Audio Radius 90.
- Speaker Cable and Connectors
- Vibration Isolators: IsoAcoustics isolators more affordable options too.
- Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.