Definitive Technology UIW RSS III is a 2-way Passive In-wall In-wall speaker by Definitive Technology. It was released in 2016. It features a 1" Hard-Dome Tweeter and 2 x 3.5" Polypropylene Woofer. UIW RSS III also employs 2 x 3.5-inch passive radiators. The speaker has a frequency range of 40-30kHz and a sensitivity of 90 dB. Definitive UIW RSS III has an MSRP of 1098$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive UIW RSS III is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
Definitive Technology replaced the older UIW RSS II with this model. Follow the link to read our detailed comparison of these models:
Compare Definitive UIW RSS III vs Definitive UIW RSS II
Definitive Technology's UIW Series of Loudspeakers
UIW RSS III is a member of Definitive Technology's UIW series of Passive speakers. The UIW range are Definitive Technology's Ultra In-Wall reference custom-install speakers. Below you can see the main specs of these speakers.
See all 4 Definitive Technology UIW models compared »
Definitive Technology UIW Series Speakers
Frequency Response of the Definitive UIW RSS III Speaker
Definitive UIW RSS III has a Frequency response range of 40-30kHz and Power Range of 10-200 watts. With a minimum frequency of 40 Hz, UIW RSS III delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.
Here we have a comparison of how UIW RSS III's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
In-wall Speakers
Thinking about a subwoofer for the Definitive UIW RSS III?
Impedance and Sensitivity
Definitive UIW RSS III's nominal impedance level is
8 ohms and has a sensitivity of
90 dB.
Sensitivity
In-wall Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Definitive Technology UIW RSS III is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
90dB of the Definitive Technology UIW RSS III is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the Definitive UIW RSS III plays in your room →
What amplifier does the Definitive UIW RSS III need?
At normal listening levels in a medium room, about
7.5–120 W
per channel into 8 ohms.
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Prefer to browse? Integrated amplifiers under $1,500, or every amplifier we cover.
Input Type
UIW RSS III features Spring post type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
Definitive UIW RSS III External Dimensions and Weight
Definitive UIW RSS III has external dimensions of (Height x Width x Depth) 9.8750-inch x 8.3750-inch x 3.8750-inch (251.0 x 213.0 x 99.0mm ).
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 Definitive UIW RSS III is approximately 210.9cm2 / 32.7inch2.
Find speakers that fit your shelf or alcove →
How does the Definitive UIW RSS III compare to the Definitive Technology UIW RSS II?
One of the natural alternative to the Definitive UIW RSS III is the UIW RSS II which is located one step higher in Definitive Technology's Passive In-wall selection.
Check the Detailed Comparison of Definitive UIW RSS III vs UIW RSS II for more details.
Cabinet type and Materials
Definitive UIW RSS III has a
In-wall type cabinet.
What's in the Box of Definitive UIW RSS III?
Here are the items that are included inside the box of UIW RSS III:
- In-wall/In-cieling bipolar speaker
- Grille
- 7 Foam strips
- 2 Screws
- Paint mask
- Wall template
- Owners Manual
- Online Product Registration Card
Recommended Accessories
Here is a list of accessories that we think you may need for the Definitive Technology UIW RSS III.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.