Definitive Technology UIW RLS II is a 2-way Passive In-wall In-wall speaker by Definitive Technology. It features a 1" Hard-Dome Tweeter and 2 x 6.5" Polypropylene Woofer. UIW RLS II also employs 2 x 6.5-inch passive radiators. The speaker has a frequency range of 22-30kHz and a sensitivity of 92 dB. Definitive UIW RLS II has an MSRP of 1998$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive UIW RLS 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 | Are you nuts? |
| Small Room | Bad |
| Mid-size Room | Poor |
| Large Room | Good |
| Very Large Room | Good |
(* 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.)
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.
Frequency Response of the Definitive UIW RLS II Speaker
Definitive UIW RLS II has a Frequency response range of 22-30kHz at ±3dB and Power Range of 10-350 watts. With a minimum frequency of 22 Hz, UIW RLS 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.
To focus on the subwoofers that are in a similar price range with Definitive UIW RLS II, check out the Powered Subwoofers under $2000. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how UIW RLS II's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
In-wall Speakers
High Frequency
In-wall Speakers
Impedance and Sensitivity
Definitive UIW RLS II's nominal impedance level is
8 ohms and has a sensitivity of
92 dB.
Sensitivity
In-wall Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Definitive Technology UIW RLS II is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
92dB of the Definitive Technology UIW RLS II is considered a high sensitivity compared to average stereo speaker which makes UIW RLS II 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 Definitive UIW RLS II will be a good choice.
Check the amplifiers that are in a similar price range to the Definitive UIW RLS II:
Input Type
UIW RLS II features Spring post type connectors. Bi-amping and Bi-wiring are not possible.
Definitive UIW RLS II External Dimensions and Weight
Definitive UIW RLS II has external dimensions of (Height x Width x Depth) 28.5000-inch x 7.0000-inch x 3.8750-inch (724.0 x 178.0 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 RLS II is approximately 176.2cm2 / 27.3inch2.
Cabinet type and Materials
Definitive UIW RLS II has a
In-wall type cabinet.
What's in the Box of Definitive UIW RLS II?
Here are the items that are included inside the box of UIW RLS II:
In-wall loudspeakerGrilleSelf-adhesive foam gasketPaint maskWall-Mount TemplateOwners ManualOnline Product Registration Card
Recommended Accessories
Here is a list of accessories that we think you may need for the Definitive Technology UIW RLS II.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.