Klipsch Reference R 40M is a 2-way Passive Bookshelf speaker by Klipsch. It was released in April 2022. It features a 1" Tractrix Horn Tweeter and 1 x 4" Woofer. The speaker has a frequency range of 71-21k Hz and a sensitivity of 91 dB.
Klipsch's Reference (R) Series of Loudspeakers
Reference R 40M is a member of Klipsch's Reference (R) series of Passive speakers. The Reference (R) range is Klipsch's affordable core line, using the brand's signature Tractrix horn-loaded tweeters. Below you can see the main specs of these speakers.
See all 6 Klipsch Reference (R) models compared »
Klipsch Reference (R) Series Speakers
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Frequency Response of the Klipsch Reference R 40M Speaker
Klipsch Reference R 40M has a Frequency response range of 71-21k Hz at ±3dB. With a minimum frequency of 71 Hz, it is hard to expect a strong bass response from Reference R 40M 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 Reference R 40M'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
Klipsch Reference R 40M's nominal impedance level is
8 ohms and has a sensitivity of
91 dB.
Sensitivity
Bookshelf Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Klipsch Reference R 40M is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
91dB of the Klipsch Reference R 40M is considered a high sensitivity compared to average stereo speaker which makes Reference R 40M an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the Klipsch Reference R 40M will be a good choice.
Check the amplifiers that are in a similar price range to the Klipsch Reference R 40M:
Input Type
Reference R 40M features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
Klipsch Reference R 40M External Dimensions and Weight
Klipsch Reference R 40M has external dimensions of (Height x Width x Depth) .
Weight
All Bookshelf Speakers
Available colors
Klipsch Reference R 40M is available in Black.
Wall Mounting
Reference R 40M 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 Klipsch Reference R 40M.
- Speaker Cable and Connectors
- Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find 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.