In this review, we will be comparing W280-IDC and UIW RLS III, two Passive In-wall speakers from Monitor Audio and Definitive Technology.
Let's have a brief look at the main features
of Monitor Audio W280-IDC and Definitive UIW RLS III first before getting into our more
detailed comparison.
Monitor Audio W280-IDC Key Specs
- 3-way Design
- 1" Hard-Dome Tweeter
- 4" Midrange
- 8" C-CAM Woofer
- 45-30kHz Frequency Response
- 90 dB Sensitivity
- Impedance: 6ohms
- Power Range:30-120watts
- Dimensions (H x W x D): 388.0" x 9.1875" x 3.6875"( 388.0 x 234.0 x 94.0mm )
Definitive UIW RLS III Key Specs
- 2-way Design
- 1" Hard-Dome Tweeter
- 2 x 5.25" Polypropylene Woofer
- 24-30kHz Frequency Response
- 92 dB Sensitivity
- Impedance: 8ohms
- Power Range:10-325watts
- Dimensions (H x W x D): 604.0" x 5.8750" x 3.8750"( 604.0 x 150.0 x 99.0mm )
What size room are the Monitor Audio W280-IDC and Definitive UIW RLS III speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
Monitor Audio W280-IDC |
Definitive UIW RLS III |
| Near-field |
Poor |
Are you nuts? |
| Small Room |
Average |
Bad |
| Mid-size Room |
Good |
Poor |
| Large Room |
Average |
Good |
| Very Large Room |
Poor |
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.)
In the following sections, we will get into more detail in order to better understand how the Monitor Audio W280-IDC and Definitive UIW RLS III compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**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.
Drivers
One of the fundamental differences between these two speakers is that W280-IDC is a 3-way design whereas the UIW RLS III is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
Monitor Audio W280-IDC |
Definitive UIW RLS III |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 4-inch |
- |
|
Woofer
|
1 x 8-inch
|
2 x 5.25-inch
|
W280-IDC features a 1" Hard-Dome Tweeter , a 4" Midrange and 1 x 8" C-CAM Woofer . On the other hand, the UIW RLS III features a 1" Hard-Dome Tweeter and 2 x 5.25" Polypropylene Woofer .
Frequency Response
W280-IDC has a frequency range of 45-30kHz whereas UIW RLS III has a frequency range of 24-30kHz. With a minimum frequency of 24Hz, the UIW RLS III can go significantly deeper on the low side and provide stronger bass compared to the W280-IDC's min frequency of 45Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the In-wall class in our database.
Low Frequency
In-wall Speakers
High Frequency
In-wall Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
W280-IDC is a 6 ohms speaker compared to the UIW RLS III which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. W280-IDC sensitivity is rated at 90 dB and the UIW RLS III's is rated at 92 dB. This 2 dB difference makes the Definitive UIW RLS III a more sensitive speaker compared to Monitor Audio W280-IDC, hence will play louder with the same amount of watts.
Sensitivity
In-wall Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using
an amplifier within this range ensures the nominal performance , inputting a power that is higher than the
max wattage can result in a damaged speaker.
W280-IDC can handle a max power of 325 watts RMS from the amp the whereas W280-IDC has a max power handling value of 120 watts RMS , 205 watts less than the UIW RLS III.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
W280-IDC features Spring post type posts and UIW RLS III has a Spring post type posts. None of these speakers feature bi-amping/bi-wiring.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Monitor Audio W280-IDC's and Definitive UIW RLS III's external dimensions. Monitor Audio W280-IDC has external dimensions of 388.0 x 234.0 x 94.0mm ( 15.2500-inch x 9.1875-inch x 3.6875-inch) whereas Definitive UIW RLS III has external dimensions of 604.0 x 150.0 x 99.0mm ( 23.7500-inch x 5.8750-inch x 3.8750-inch) .
Monitor Audio W280-IDC is 216mm shorter and 5mm less deeper than Definitive UIW RLS III but it is also 84mm wider.
What's in the Box of Monitor Audio W280-IDC?
Here are the items that are included inside the box of W280-IDC:
In-Wall speakerGrillePaint skimInstallation GuideImportant Safety InstructionsCutout Template
What's in the Box of Definitive UIW RLS III?
Here are the items that come with the UIW RLS III:
In-wall loudspeakerGrilleSelf-adhesive foam gasketPaint maskWall-Mount TemplateOwners ManualOnline Product Registration Card