In this review, we will be comparing Ai61 and Navis ARB-51, two Powered Bookshelf speakers from Fluance and ELAC. Being Powered speakers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them.
Let's have a brief look at the main features
of Fluance Ai61 and ELAC Navis ARB-51 first before getting into our more
detailed comparison.
Fluance Ai61 Key Specs
- 2-way Design
- 120-watt RMS Integrated Amplifier
- 1" Soft Dome Tweeter
- 6.5" Woven, Glass Fiber Composite Woofer
- 32-20k Hz Frequency Response
- Power Range:up to 120watts
- 16-bit Max Depth / 48 kHz Max Sample Rate
- Built-in 5.0 Bluetooth
- Weight:5.96kg
- Dimensions (H x W x D): 333.0" x 7.8" x 9.2"( 33.3 x 19.8 x 23.4 cm )
ELAC Navis ARB-51 Key Specs
- 3-way Design
- 300-watt RMS( 600-watt Peak) Integrated Amplifier
- 1" Soft-Dome Tweeter
- 4" Midrange
- 5.25" Aluminum Woofer
- 4" Midrange
- 44-28k Hz Frequency Response
- Optional Bluetooth
- Weight:8.10kg
- Dimensions (H x W x D): 350.8" x 7.5625" x 11.3125"( 350.8 x 192.1 x 287.3mm )
In the following sections, we will get into more detail in order to better understand how the Fluance Ai61 and ELAC Navis ARB-51 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
One of the fundamental differences between these two speakers is that Ai61 is a 2-way design whereas the Navis ARB-51 is a 3-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 |
Fluance Ai61 |
ELAC Navis ARB-51 |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 4-inch |
|
Woofer
|
1 x 6.5-inch
|
1 x 5.25-inch
|
Ai61 features a 1" Silk Neodymium Ferrofluid Cooled Soft Dome Tweeter and 1 x 6.5" Woven, Glass Fiber Composite Woofer . On the other hand, the Navis ARB-51 features a 1" Fabric Soft-Dome Tweeter , a 4" Midrange and 1 x 5.25" Aluminum Woofer .
Frequency Response
Ai61 has a frequency range of 32-20k Hz whereas Navis ARB-51 has a frequency range of 44-28k Hz. With a minimum frequency of 32Hz, the Ai61 can go significantly deeper on the low side and provide stronger bass compared to the Navis ARB-51's min frequency of 44Hz.
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.
Cabinet Type and Port Position
Both Ai61 and Navis ARB-51 have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 Fluance Ai61's and ELAC Navis ARB-51's external dimensions. Fluance Ai61 has external dimensions of 33.3 x 19.8 x 23.4 cm ( 13.1 x 7.8 x 9.2 inches) whereas ELAC Navis ARB-51 has external dimensions of 350.8 x 192.1 x 287.3mm ( 13.8125 x 7.5625 x 11.3125inch) .
Fluance Ai61 is 17.8mm shorter and 53.3mm less deeper than ELAC Navis ARB-51 but it is also 5.9mm 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 Fluance Ai61 is approximately 463.0cm2 / 71.8inch2 and base area of the ELAC Navis ARB-51 is approximately 551.9cm2 / 85.5inch2. The Ai61 requires 16% less surface area than the Navis ARB-51 which gives it a small advantage on placement in tight spaces.