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
Frequency Response of the Klipsch Reference R 40M Speaker
Klipsch Reference R 40M has a Frequency response range of 71-21k Hz. 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.
Here we have a comparison of how Reference R 40M's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Thinking about a subwoofer for the Klipsch Reference R 40M?
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. Work out how loud the Klipsch Reference R 40M plays in your room →
What amplifier does the Klipsch Reference R 40M need?
At normal listening levels in a medium room, about
6.0–95 W
per channel into 8 ohms.
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Input Type
Reference R 40M features Binding post type connectors.
Work out what gauge speaker cable this run needs →
Klipsch Reference R 40M External Dimensions and Weight
Klipsch Reference R 40M has external dimensions of (Height x Width x Depth) (298.5 x 147.6 x 214.3mm ).
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 Klipsch Reference R 40M is approximately 316.3cm2 / 49.0inch2.
To get a better perspective on the real life size of Klipsch Reference R 40M, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
Klipsch Reference R 40M Speaker Size Compared to a Compact Disc
Here we place the Klipsch Reference R 40M virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.
Klipsch Reference R 40M Speaker next to an amplifier and turntable
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
WeightThe Klipsch Reference R 40M weighs 3.18kg / 7lbs per piece. Here is a comparison of how Reference R 40M's weight compares with the average, max and min weights in its class.
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.