Definitive Technology UIW RSS II 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 4.5" Polypropylene Woofer. UIW RSS II also employs 2 x 4.5-inch passive radiators. The speaker has a frequency range of 26-30kHz and a sensitivity of 90 dB. Definitive UIW RSS II has an MSRP of 1398$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive UIW RSS II 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 | Poor |
| Mid-size Room | Good |
| Large Room | Good |
| Very Large Room | Average |
(* 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 later replaced UIW RSS II with UIW RSS III. Follow the link to read our in-depth comparison of these speakers:
Compare Definitive UIW RSS II vs Definitive UIW RSS III
Definitive Technology's UIW Series of Loudspeakers
UIW RSS II 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 II Speaker
Definitive UIW RSS II has a Frequency response range of 26-30kHz and Power Range of 10-250 watts. With a minimum frequency of 26 Hz, UIW RSS II 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 II'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 II?
Impedance and Sensitivity
Definitive UIW RSS II'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 II is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
90dB of the Definitive Technology UIW RSS II 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 II plays in your room →
What amplifier does the Definitive UIW RSS II 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 II features Spring pst type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
Definitive UIW RSS II External Dimensions and Weight
Definitive UIW RSS II has external dimensions of (Height x Width x Depth) 11.6250-inch x 9.8750-inch x 3.8750-inch (296.0 x 251.0 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 II is approximately 248.5cm2 / 38.5inch2.
Find speakers that fit your shelf or alcove →
Cabinet type and Materials
Definitive UIW RSS II has a
In-wall type cabinet.
What's in the Box of Definitive UIW RSS II?
Here are the items that are included inside the box of UIW RSS II:
- 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 II.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.