In this review, we will be comparing two different types of speakers by Focal. Focal Theva No1 is a Bookshelf speaker whereas the Theva Center is a Center Channel speaker.
Let's have a brief look at the main features
of Focal Theva No1 and Focal Theva Center first before getting into our more
detailed comparison.
| Key Specs | Focal Theva No1 | Focal Theva Center |
|---|
| Brand | Focal
France · founded 1979 | Focal
France · founded 1979 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" inverted dome | 1" inverted dome |
|---|
| Woofer | 6.5" Slatefiber | 2 x 6.5" Slatefiber |
|---|
| Frequency response | 58-28kHz | 59-28kHz |
|---|
| Sensitivity | 89 dB | 91 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | 25-120 watts | 40-200 watts |
|---|
| Weight | 6.82kg / 15lbs | 10.00kg / 22lbs |
|---|
| Dimensions (H x W x D) | 15-3/8" x 8-3/8" x 10-1/4"
391.0 x 213.0 x 261.0mm | 8-1/4" x 20-7/8" x 10"
210.0 x 531.0 x 254.0mm |
|---|
Theva No1 and Theva Center are members of Focal's Theva series of speakers. Below you can find the loudspeakers from this series.
Focal Theva Series
History
What size room are the Focal Theva No1 and Focal Theva Center 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 Theva No1 |
Focal Theva Center |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
Poor |
(* 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.
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Drivers
Both Theva No1 and Theva Center are 2-way speakers.
Focal Theva No1Focal Theva Center
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 Theva No1 |
Focal Theva Center |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.5-inch
|
2 x 6.5-inch
|
Theva No1 features a 1" TNF Al/Mg inverted dome Tweeter and 1 x 6.5" Slatefiber Woofer with a Crossover frequency at 3000 Hz. On the other hand, the Theva Center features a 1" TNF Al/Mg inverted dome Tweeter and 2 x 6.5" Slatefiber Woofer with a Crossover frequency at 2100 Hz.
Frequency Response
Theva No1 has a frequency range of 58-28kHz whereas Theva Center has a frequency range of 59-28kHz. With a minimum frequency of 58Hz, the Theva No1 can go slightly deeper then the Theva Center's min frequency of 59Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
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
Theva No1 and Theva Center have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Theva No1 sensitivity is rated at 89 dB and the Theva Center's is at 91 dB. This 2 dB difference makes the Focal Theva Center a more sensitive speaker compared to Focal Theva No1, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
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.
Theva Center can handle a max power of 200 watts RMS, whereas Theva No1 has a max power handling value of 120 watts RMS, 80 watts less than the Theva Center.
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.
Input Type and Bi-Amping / Bi-Wiring
Both Theva No1 and Theva Center features dual binding post speaker terminals for bi-amping or bi-wiring.
Focal Theva No1's Binding post terminals allows Bi-amping or 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 Theva No1's and Focal Theva Center's external dimensions. Focal Theva No1 has external dimensions of 391.0 x 213.0 x 261.0mm (153/8 x 83/8 x 101/4) whereas Focal Theva Center has external dimensions of 210.0 x 531.0 x 254.0mm (81/4 x 207/8 x 10).
Focal Theva Center is 181mm shorter and 7mm less deeper than Focal Theva No1 but it is also 318mm wider.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Focal Theva No1 is approximately 555.9cm2 / 86.2inch2 and base area of the Focal Theva Center is approximately 1348.7cm2 / 209.0inch2. The Theva No1 requires 59% less surface area than the Theva Center which gives it a small advantage on placement in tight spaces.