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Focal Aria 948 vs Klipsch Forte IV Comparison

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Focal Aria 948

Passive Floor-standing | 37-28k Hz

Focal Aria 948
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Klipsch Forte IV

Passive Floor-standing | 38-20k Hz

Klipsch Heritage Forte IV
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Focal Aria 948 Focal Aria 948
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Klipsch Forte IV Klipsch Forte IV
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Focal Aria 948
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Klipsch Forte IV
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Focal Aria 948 vs Klipsch Forte IV Speaker Comparison

In this review, we will be comparing Aria 948 and Forte IV, two Passive Floor-standing speakers from Focal and Klipsch.

Let's have a brief look at the main features of Focal Aria 948 and Klipsch Forte IV first before getting into our more detailed comparison.

Focal Aria 948 Key Specs

  • 3-way Design
  • 1" inverted dome Tweeter
  • 6.5" Midrange
  • 2 x 8.25" Flax Woofer
  • 37-28k Hz Frequency Response
  • 92.5 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:50-350watts
  • Weight:35.00kg
  • Dimensions (H x W x D): 1150.0" x 14-5/8" x 16-9/16"( 1150.0 x 372.0 x 421.0mm )

Klipsch Forte IV Key Specs

  • 3-way Design
  • 1" horn-loaded Tweeter
  • 1.75" Midrange
  • 12" Fibercomposite Woofer
  • 1.75" Midrange
  • 38-20k Hz Frequency Response
  • 99 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:up to 100watts
  • Weight:32.73kg
  • Dimensions (H x W x D): 909.0" x 16-5/8" x 13"( 909.0 x 423.0 x 331.0mm )

In the following sections, we will get into more detail in order to better understand how the Focal Aria 948 and Klipsch Forte IV 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 Aria 948 and Forte IV are 3-way speakers.

Driver Focal Aria 948 Klipsch Forte IV
Driver Setup 3-way 3-way
Tweeter 1-inch 1-inch
Midrange 1 x 6.5-inch 1 x 1.75-inch
Woofer 2 x 8.25-inch 1 x 12-inch

Aria 948 features a 1" TNF Al/Mg inverted dome Tweeter , a 6.5" Midrange and 2 x 8.25" Flax Woofer with a Crossover frequency at 280Hz and 2,600Hz. On the other hand, the Forte IV features a 1" titanium-diaphragm compression horn-loaded Tweeter , a 1.75" Midrange and 1 x 12" Fibercomposite Woofer .

Frequency Response

Aria 948 has a frequency range of 37-28k Hz whereas Forte IV has a frequency range of 38-20k Hz. With a minimum frequency of 37Hz, the Aria 948 can go slightly deeper then the Forte IV's min frequency of 38Hz.

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 Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

Aria 948
Forte IV
Min
Average
Max
High Frequency

Floor-standing Speakers

Focal Aria 948
Klipsch Forte IV
Min
Average
Max

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

Aria 948 and Forte IV have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Aria 948 sensitivity is rated at 92.5 dB and the Forte IV's is at 99 dB. This 6 dB difference makes the Klipsch Forte IV a more sensitive speaker compared to Focal Aria 948, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

Aria 948
Forte IV
Min
Average
Max

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.

Aria 948 can handle a max power of 350 watts RMS from the amp the whereas Forte IV has a max power handling value of 100 watts RMS, 250 watts less than the Aria 948.

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

Forte IV features Post posts which make bi-amping or bi-wiring possible. Aria 948 has a Binding post which doesn't 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 Focal Aria 948's and Klipsch Forte IV's external dimensions. Focal Aria 948 has external dimensions of 1150.0 x 372.0 x 421.0mm ( 45-1/4 x 14-5/8 x 16-9/16inch) whereas Klipsch Forte IV has external dimensions of 909.0 x 423.0 x 331.0mm ( 35-3/4 x 16-5/8 x 13inch) .

Klipsch Forte IV is 241mm shorter and 90mm less deeper than Focal Aria 948 but it is also 51mm 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 Aria 948 is approximately 1566.1cm2 / 242.7inch2 and base area of the Klipsch Forte IV is approximately 1400.1cm2 / 217.0inch2. The Aria 948 requires 12% more surface area than the Forte IV which gives it a small disadvantage on placement in tight spaces.

Weight Comparison

The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Focal Aria 948 weighs 35.00kg / 77lbs and the Klipsch Forte IV weighs 32.73kg / 72lbs. This makes the Aria 948 7% heavier than the Forte IV.

Here is a comparison of how Aria 948 and Forte IV's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
Focal Aria 948
Klipsch Forte IV
Min
Average
Max

What's in the Box of Focal Aria 948?

Here are the items that are included inside the box of Aria 948:
  • Floorstanding loudspeaker
  • Grille
  • Base
  • 4 Spike feet (pre-installed in base)
  • 4 Plastic feet
  • 4 Screws
  • Allen-key
  • Hex-tool
  • User Manual
  • What's in the Box of Klipsch Forte IV?

    Here are the items that come with the Forte IV:
  • 2 Floorstanding loudspeakers
  • 2 Grilles
  • 8 Self-adhesive rubber feet
  • Owners Manual
  • Congratulations letter
  • Klipsch brochure

  • Reasons to choose Focal Aria 948 over Klipsch Heritage Forte IV
    Max Input Power 350 watts vs 100 watts Handle more power from your amplifier
    Number of Woofers 2 vs 1 More woofers
    Low Frequency Response 37 Hz vs 38 Hz Generates deeper bass
    High Frequency Response 28k Hz vs 20k Hz Generates higher frequency

    Reasons to choose Klipsch Heritage Forte IV over Focal Aria 948

    Sensitivity 99 dB vs 93 dB Play louder with same amount of amplification power
    Woofer Size 12 inches vs 8.25 inches Larger woofer
    Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
    Passive Radiator rear-firing 15-inch vs None Increases the bass performance
    Height 909mm vs 1150mm Easier to fit in smaller spaces
    Base Surface Area 1400cm2 vs 1566cm2 Takes less floor space
    Price per pair* 4998USD vs 6598USD costs less (*prices may change depending on the seller, location and time)
    Focal Aria 948 vs Klipsch Forte IV Specs Table
    Detailed comparison of specifications
    General Focal Aria 948 Klipsch Heritage Forte IV
    Brand Focal Klipsch
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range 50-350 watts up to 100 watts
    Sensitivity 92.5 dB 99 dB
    Impedance 8 ohms 8 ohms
    Impedance 2.5 ohms n/a
    Frequency Response 37-28k Hz 38-20k Hz
    Drivers
    Woofer Quantity 2 1
    Woofer Size 8.25" 12"
    Woofer Composition Flax Fibercomposite
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type inverted dome horn-loaded
    Aimable Tweeter No No
    Midrange Driver 6.5" 1.75"
    Crossover Frequency 280Hz and 2,600Hz n/a
    Firing Direction n/a rear
    Physical Specs
    Height 1150.0mm (45.3") 909.0mm (35.8")
    Width 372.0mm (14.6") 423.0mm (16.7")
    Depth 421.0mm (16.6") 331.0mm (13")
    Weight 35.00kg (77lbs) 32.73kg (72lbs)
    Enclosure Bass Reflex Passive Radiator
    Finish MDF/Glass/Leather MDF/Wood veneer
    Available Colors Gloss Black Black
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No Yes
    Other
    Parts Warranty 5 Years 10 Years
    Labor Warranty 5 Years 10 Years

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