In this review, we will be comparing AE120 MII and R-625FA, two Passive Floor-standing speakers from Acoustic Energy and Klipsch. Let's have a brief look at the main features
of AE120 Mark II and Klipsch R-625FA first before getting into our more
detailed comparison.
What size room are the AE120 Mark II and Klipsch R-625FA 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:
In the following sections, we will get into more detail in order to better understand how the AE120 Mark II and Klipsch R-625FA 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
One of the fundamental differences between these two speakers is that AE120 MII is a 3-way design whereas the R-625FA is a 2-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 |
AE120 Mark II |
Klipsch R-625FA |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5.2-inch |
- |
|
Woofer
|
2 x 5.2-inch
|
2 x 6.5-inch
|
AE120 MII features a 1" fabric dome with waveguide Tweeter , a 5.2" Midrange and 2 x 5.2" paper cone Woofer with a Crossover frequency at 300Hz and 2.7kHz. On the other hand, the R-625FA features a 1" Tweeter and 2 x 6.5" Copper-spun IMG Woofer with a Crossover frequency at 2000Hz.
Frequency Response
AE120 MII has a frequency range of 39Hz - 26kHz whereas R-625FA has a frequency range of 38-21k Hz. With a minimum frequency of 38Hz, the R-625FA can go slightly deeper then the AE120 MII's min frequency of 39Hz.
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
High Frequency
Floor-standing 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
AE120 MII is a 6 ohms speaker compared to the R-625FA which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. AE120 MII sensitivity is rated at 90 dB and the R-625FA's is rated at 96 dB. This 6 dB difference makes the Klipsch R-625FA a more sensitive speaker compared to AE120 Mark II, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing 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.
AE120 MII can handle a max power of 200 watts RMS from the amp the whereas R-625FA has a max power handling value of 100 watts RMS, 100 watts less than the AE120 MII.
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.
Cabinet Type and Port Position
Both AE120 MII and R-625FA 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 AE120 Mark II's and Klipsch R-625FA's external dimensions. AE120 Mark II has external dimensions of 950.0 x 165.0 x 250.0mm ( 37.4 x 6.5 x 9.8inch) whereas Klipsch R-625FA has external dimensions of 1021.0 x 239.0 x 426.0mm ( 40-3/16 x 9-3/8 x 16-3/4inch) .
Klipsch R-625FA is clearly the larger of the two speakers. Its body is 74mm wider, 71mm taller and 176mm deeper than AE120 Mark II.
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 AE120 Mark II is approximately 412.5cm2 / 63.9inch2 and base area of the Klipsch R-625FA is approximately 1018.1cm2 / 157.8inch2. The AE120 MII requires 59% less surface area than the R-625FA which gives it a small advantage 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 AE120 Mark II weighs 19.00kg / 41.8lbs and the Klipsch R-625FA weighs 22.20kg / 48.8lbs. This makes the R-625FA 17% heavier than the AE120 MII.
Here is a comparison of how AE120 MII and R-625FA's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Klipsch R-625FA?
Here are the items that come with the R-625FA:
Floorstanding loudspeaker2 Grilles (installed)2 Feet4 ScrewsQuick Setup GuideImportant Safety InstructionsWarranty InformationLoudspeaker Feet note
 Max Input Power |
200 watts
vs
100 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 High Frequency Response |
26k Hz
vs
21k Hz
|
Generates higher frequency |
 Height |
950mm
vs
1021mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
412cm2 (165x250mm)
vs
1018cm2 (239x426mm)
|
Takes less floor space |
 Price per pair* |
1499USD
vs
1658USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
96 dB
vs
90 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Woofer Size |
6.5 inches
vs
5.2 inches
|
Larger woofer |
| Low Frequency Response |
38 Hz
vs
39 Hz
|
Generates deeper bass |
 Dolby Atmos Drivers |
Built-in 1 x 5.25
vs
No
|
Dolby Atmos Compatibility |
| General |
Acoustic Energy AE120 Mark II |
Klipsch Reference R-625FA |
| Brand |
Acoustic Energy |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 200 watts |
up to 100 watts |
| Sensitivity |
90 dB |
96 dB |
| Impedance |
6 ohms |
8 ohms |
| Frequency Response |
39Hz - 26kHz |
38-21k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
5.2" |
6.5" |
| Woofer Composition |
paper cone |
Copper-spun IMG |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
dome with waveguide |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5.2" |
No |
| Crossover Frequency |
300Hz and 2.7kHz |
2000Hz |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
950.0mm (37.4") |
1021.0mm (40.2") |
| Width |
165.0mm (6.5") |
239.0mm (9.4") |
| Depth |
250.0mm (9.8") |
426.0mm (16.8") |
| Weight |
19.00kg (41.8lbs) |
22.20kg (48.8lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
HDF |
MDF/Wood-grain vinyl |
| Available Colors |
Walnut, Satin Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
n/a |
No |
Other |
|
|
| Parts Warranty |
|
5 Years |
| Labor Warranty |
|
5 Years |