Polk Audio Reserve R900 is a 2-way Passive Surround speaker by Polk Audio. It was released in 2022. It features a 0.75" Ring Radiator Tweeter and 1 x 4" Woofer. The speaker has a frequency range of 70-32k Hz and a sensitivity of 85.5 dB. Polk Audio Reserve R900 has an MSRP of 599$ per pair but can often be found around 0$ per pair.
Polk Audio's Reserve Series of Loudspeakers
Reserve R900 is a member of Polk Audio's Reserve series of Passive speakers. The Reserve range is Polk Audio's high-value step-up line, with Pinnacle tweeter and Power Port technology from the flagship Legend series. Below you can see the main specs of these speakers.
See all 10 Polk Audio Reserve models compared »
Polk Audio Reserve Series Speakers
Frequency Response of the Polk Audio Reserve R900 Speaker
Polk Audio Reserve R900 has a Frequency response range of 70-32k Hz. With a minimum frequency of 70 Hz, it is hard to expect a strong bass response from Reserve R900 so depending on your use case, using a subwoofer will significantly help to widen the response range.
Here we have a comparison of how Reserve R900's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Surround Speakers
Thinking about a subwoofer for the Polk Audio Reserve R900?
Impedance and Sensitivity
Polk Audio Reserve R900's nominal impedance level is
8 ohms and has a sensitivity of
85.5 dB.
Sensitivity
Surround Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Polk Audio Reserve R900 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 86 dB, Polk Audio Reserve R900 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. Work out how loud the Polk Audio Reserve R900 plays in your room →
What amplifier does the Polk Audio Reserve R900 need?
At normal listening levels in a medium room, about
19–300 W
per channel into 8 ohms.
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Input Type
Reserve R900 features Binding post type connectors.
Work out what gauge speaker cable this run needs →
Polk Audio Reserve R900 External Dimensions and Weight
Polk Audio Reserve R900 has external dimensions of (Height x Width x Depth) (158.8 x 166.7 x 320.7mm ).
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 Polk Audio Reserve R900 is approximately 534.6cm2 / 82.9inch2.
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WeightThe Polk Audio Reserve R900 weighs 2.99kg / 6.6lbs per piece. Here is a comparison of how Reserve R900's weight compares with the average, max and min weights in its class.
Weight
All Surround Speakers
Weight
Surround Speakers under $750
Available colors
Polk Audio Reserve R900 is available in Black.
Recommended Accessories
Here is a list of accessories that we think you may need for the Polk Audio Reserve R900.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.