In this review, we will be comparing Theta and Evoke 30, two Passive Bookshelf speakers from Triangle and Dynaudio.
Let's have a brief look at the main features
of Triangle Signature Theta and Dynaudio Evoke 20 first before getting into our more
detailed comparison.
Triangle Signature Theta Key Specs
- 2-way Design
- 1" Horn-Loaded Tweeter
- 6.5" Fibreglass Woofer
- 45-20k Hz Frequency Response
- 90 dB Sensitivity
- Impedance: 8ohms
- Power Range:25-130watts
- Weight:11.50kg
- Dimensions (H x W x D): 18-5/16" x 9-3/16" x 14-5/8" ( 465.0 x 233.0 x 372.0mm )
Dynaudio Evoke 20 Key Specs
- 2-way Design
- 1.1" Tweeter
- 7" Magnesium Silicate Polymer Woofer
- 40-23k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 6ohms
- Power Range:up to 180watts
- Weight:9.90kg
- Dimensions (H x W x D): 15" x 8.5" x 12.1" ( 380.0 x 215.0 x 343.0mm )
What size room are the Triangle Signature Theta and Dynaudio Evoke 20 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* |
Triangle Signature Theta |
Dynaudio Evoke 20 |
| Near-field |
Average |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
Bad |
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.)
In the following sections, we will get into more detail in order to better understand how the Triangle Signature Theta and Dynaudio Evoke 20 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
Both Theta and Evoke 30 are 2-way speakers.
| Driver |
Triangle Signature Theta |
Dynaudio Evoke 20 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1.1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 7-inch
|
Theta features a 1" Titanium dome Horn-Loaded Tweeter and 1 x 6.5" Fibreglass Woofer with a Crossover frequency at 2700Hz. On the other hand, the Evoke 30 features a 1.1" Cerotar with Hexis Tweeter and 1 x 7" Magnesium Silicate Polymer Woofer with a Crossover frequency at 3200Hz.
Frequency Response
Theta has a frequency range of 45-20k Hz whereas Evoke 30 has a frequency range of 40-23k Hz. With a minimum frequency of 40Hz, the Evoke 30 can go significantly deeper on the low side and provide stronger bass compared to the Theta'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 Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf 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
Theta is a 8 ohms speaker compared to the Evoke 30 which has a nominal impedance of 6 ohms.
These two speakers also have different sensitivity levels. Theta sensitivity is rated at 90 dB and the Evoke 30's is rated at 86 dB. This 4 dB difference makes the Triangle Signature Theta a more sensitive speaker compared to Dynaudio Evoke 20, 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. 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.
Theta can handle a max power of 180 watts RMS from the amp the whereas Theta has a max power handling value of 90 watts RMS , 90 watts less than the Evoke 30.
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
Theta features Binding post type posts and Evoke 30 has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
Dynaudio Evoke 20's Binding post terminals
Cabinet Type and Port Position
Theta has a front firing port whereas Evoke 30 has a rear firing ports. Triangle Signature Theta's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Dynaudio Evoke 20 with its rear-firing port.
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 Triangle Signature Theta's and Dynaudio Evoke 20's external dimensions. Triangle Signature Theta has external dimensions of 465.0 x 233.0 x 372.0mm ( 18-5/16 x 9-3/16 x 14-5/8inch) whereas Dynaudio Evoke 20 has external dimensions of 380.0 x 215.0 x 343.0mm ( 15 x 8.5 x 12.1inch) .
Triangle Signature Theta is clearly the larger of the two speakers. Its body is 18mm wider, 85mm taller and 29mm deeper than Dynaudio Evoke 20.
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 Triangle Signature Theta is approximately 866.8cm2 / 134.4inch2 and base area of the Dynaudio Evoke 20 is approximately 737.5cm2 / 114.3inch2. The Theta requires 18% more surface area than the Evoke 30 which gives it a small disadvantage on placement in tight spaces.