Definitive Technology DI 5.5LCR 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 5.25" Polymer Woofer. The speaker has a frequency range of 28-30kHz and a sensitivity of 89 dB. Definitive DI 5.5LCR has an MSRP of 998$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive DI 5.5LCR 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's DI Series of Loudspeakers
DI 5.5LCR is a member of Definitive Technology's DI series of Passive speakers. The DI range are Definitive Technology's disappearing in-wall and in-ceiling custom-install speakers. Below you can see the main specs of these speakers.
See all 5 Definitive Technology DI models compared »
Definitive Technology DI Series Speakers
Frequency Response of the Definitive DI 5.5LCR Speaker
Definitive DI 5.5LCR has a Frequency response range of 28-30kHz and Power Range of 10-250 watts. With a minimum frequency of 28 Hz, DI 5.5LCR 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 DI 5.5LCR'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 DI 5.5LCR?
Impedance and Sensitivity
Definitive DI 5.5LCR's nominal impedance level is
8 ohms and has a sensitivity of
89 dB.
Sensitivity
In-wall Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Definitive Technology DI 5.5LCR is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
89dB of the Definitive Technology DI 5.5LCR is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the Definitive DI 5.5LCR plays in your room →
What amplifier does the Definitive DI 5.5LCR need?
At normal listening levels in a medium room, about
9.5–150 W
per channel into 8 ohms.
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Input Type
DI 5.5LCR features Spring clip type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
Definitive DI 5.5LCR External Dimensions and Weight
Definitive DI 5.5LCR has external dimensions of (Height x Width x Depth) 14.3750-inch x 6.4375-inch x 3.6250-inch (366.0 x 164.0 x 93.0mm ).
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 DI 5.5LCR is approximately 152.5cm2 / 23.6inch2.
Millimetres are hard to picture, so here is the Definitive DI 5.5LCR drawn to scale next to the Definitive DI 6.5LCR, the speaker our readers compare it with most often.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Definitive DI 6.5LCR needs about 13% more floor or shelf area. Definitive DI 6.5LCR is 46mm taller.
Full comparison: Definitive DI 5.5LCR vs Definitive DI 6.5LCR ›
Find speakers that fit your shelf or alcove →
Cabinet type and Materials
Definitive DI 5.5LCR has a
In-wall type cabinet.
What's in the Box of Definitive DI 5.5LCR?
Here are the items that are included inside the box of DI 5.5LCR:
Recommended Accessories
Here is a list of accessories that we think you may need for the Definitive Technology DI 5.5LCR.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.