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  1. Home
  2. Passive In-wall Speakers
  3. Focal 100 IW LCR5 vs Definitive DT8LCR

Focal 100 IW LCR5 vs Definitive DT8LCR Comparison

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Focal 100 IW LCR5

Passive In-wall | 55-23kHz

Focal 100 IW LCR5
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Definitive DT8LCR

Passive In-wall | 27-30kHz

Definitive Technology DT8LCR
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Focal 100 IW LCR5 Focal 100 IW LCR5
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Definitive DT8LCR Definitive DT8LCR
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Focal 100 IW LCR5
See at AMAZON
Definitive DT8LCR
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Focal 100 IW LCR5 vs Definitive DT8LCR Speaker Comparison

In this review, we will be comparing 100 IW LCR5 and DT8LCR, two Passive In-wall speakers from Focal and Definitive Technology.

Let's have a brief look at the main features of Focal 100 IW LCR5 and Definitive DT8LCR first before getting into our more detailed comparison.

Key SpecsFocal 100 IW LCR5Definitive DT8LCR
BrandFocal
France · founded 1979
Definitive Technology
United States · founded 1990
Design2-way2-way
Tweeter1" Inverted Hard-Dome1" Hard-Dome
Woofer2 x 5.125" Polyglass8" Polypropylene
Frequency response55-23kHz27-30kHz
Sensitivity90.5 dB89 dB
Impedance8 ohms8 ohms
Power range25-120 watts10-100 watts
Weight1.77kg / 3.9lbs—
Dimensions (H x W x D)16.3130" x 5.8130" x 3.2500"
415.0 x 148.0 x 83.0mm
12.7500" x 8.7500" x 3.7500"
324.0 x 223.0 x 96.0mm

What size room are the Focal 100 IW LCR5 and Definitive DT8LCR 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* Focal 100 IW LCR5 Definitive DT8LCR
Near-field Poor Average
Small Room Average Good
Mid-size Room Good Average
Large Room Average Poor
Very Large Room Poor Bad

(* 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.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.


Drivers

Both 100 IW LCR5 and DT8LCR are 2-way speakers.

Tweeter - 1 inchWoofer - 5.13 inchWoofer - 5.13 inch
Focal 100 IW LCR5
Tweeter - 1 inchWoofer - 8 inch
Definitive DT8LCR

TweeterWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver Focal 100 IW LCR5 Definitive DT8LCR
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 5.125-inch 1 x 8-inch

100 IW LCR5 features a 1" Inverted Hard-Dome Tweeter and 2 x 5.125" Polyglass Woofer. On the other hand, the DT8LCR features a 1" Hard-Dome Tweeter and 1 x 8" Polypropylene Woofer.

Frequency Response

100 IW LCR5 has a frequency range of 55-23kHz whereas DT8LCR has a frequency range of 27-30kHz. With a minimum frequency of 27Hz, the DT8LCR can go significantly deeper on the low side and provide stronger bass compared to the 100 IW LCR5's min frequency of 55Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the In-wall class in our database.

Low Frequency

In-wall Speakers

100 IW LCR5
DT8LCR
Min
Average
Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

100 IW LCR5 and DT8LCR have the same Impedance of 8 ohms but where they differ is the sensitivity levels. 100 IW LCR5 sensitivity is rated at 90.5 dB and the DT8LCR's is at 89 dB. This 2 dB difference makes the Focal 100 IW LCR5 a more sensitive speaker compared to Definitive DT8LCR, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

100 IW LCR5
DT8LCR
Min
Average
Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

100 IW LCR5 can handle a max power of 120 watts RMS, whereas DT8LCR has a max power handling value of 100 watts RMS, 20 watts less than the 100 IW LCR5.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Focal 100 IW LCR5
 
Definitive DT8LCR
 

Input Type and Bi-Amping / Bi-Wiring

100 IW LCR5 features Spring post type posts and DT8LCR has a Spring post type posts. None of these speakers feature bi-amping/bi-wiring.

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Focal 100 IW LCR5's and Definitive DT8LCR's external dimensions. Focal 100 IW LCR5 has external dimensions of 415.0 x 148.0 x 83.0mm (16.3130-inch x 5.8130-inch x 3.2500-inch) whereas Definitive DT8LCR has external dimensions of 324.0 x 223.0 x 96.0mm (12.7500-inch x 8.7500-inch x 3.7500-inch).

Focal 100 IW LCR5 is 75mm narrower and 13mm less deeper than Definitive DT8LCR but it is also 91mm taller.

What's in the Box of Focal 100 IW LCR5?

Here are the items that are included inside the box of 100 IW LCR5:
  • One in-wall speaker
  • 1 metal-mesh grill (white)
  • Cut-out template
  • User manual

What's in the Box of Definitive DT8LCR?

Here are the items that come with the DT8LCR:
  • In-wall loudspeaker
  • Grille
  • Mounting template
  • Carboard paint shield
  • Owners Guide
  • Online Product Registration Information
  • Important Installation Instructions


Reasons to choose Focal 100 IW LCR5 over Definitive Technology DT8LCR

Max Input Power 120 watts vs 100 watts Handle more power from your amplifier
Sensitivity 91 dB vs 89 dB Play louder with same amount of amplification power
Number of Woofers 2 vs 1 More woofers
Base Surface Area 122cm2 vs 214cm2 Takes less floor space

Reasons to choose Definitive Technology DT8LCR over Focal 100 IW LCR5

Woofer Size 8 inches vs 5.125 inches Larger woofer
Low Frequency Response 27 Hz vs 55 Hz Generates deeper bass
High Frequency Response 30k Hz vs 23k Hz Generates higher frequency
Height 324mm vs 415mm Easier to fit in smaller spaces
Price per pair* 558USD vs 598USD costs less (*prices may change depending on the seller, location and time)

Focal 100 IW LCR5 vs Definitive DT8LCR Specs Table

Detailed comparison of specifications
General Focal 100 IW LCR5 Definitive Technology DT8LCR
Brand Focal Definitive Technology
Speaker Type Passive In-wall Speaker Passive In-wall Speaker
Power Range 25-120 watts 10-100 watts
Sensitivity 90.5 dB 89 dB
Impedance 8 ohms 8 ohms
Frequency Response 55-23kHz 27-30kHz
Drivers
Woofer Quantity 2 1
Woofer Size 5.125" 8"
Woofer Composition Polyglass Polypropylene
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 1"
Tweeter Type Inverted Hard-Dome Hard-Dome
Aimable Tweeter No Yes
Midrange Driver No No
Physical Specs
Height 415.0mm (16.3") 324.0mm (12.8")
Width 148.0mm (5.8") 223.0mm (8.8")
Depth 83.0mm (3.3") 96.0mm (3.8")
Weight 1.77kg (3.9lbs) n/a
Enclosure In-wall In-wall
Moisture Resistancy Yes No
Connections
Biamp Inputs No No
Other
Parts Warranty 5 Years 5 Years
Labor Warranty 5 Years 5 Years

Verdict

No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.

AreaBetterWhy
BassBDefinitive DT8LCR digs deeper - 27Hz against 55Hz.
Amplifier needsAFocal 100 IW LCR5 is more sensitive (91dB vs 89dB), so it goes louder on the same amplifier.
Headroomevenly matchedSimilar power handling (120W vs 100W).
SizedependsFocal 100 IW LCR5 is easier to place; Definitive DT8LCR is bigger, which usually goes with fuller bass. Your room decides.
Priceevenly matchedMuch the same money ($598 vs $558 a pair).

A Focal 100 IW LCR5  B Definitive DT8LCR
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 55Hz anyway, so judge these on the other rows instead. Match it to your room: we rate Focal 100 IW LCR5 the better fit for a mid-size room and a large room, and Definitive DT8LCR for near-field listening and a small room.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.


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