In this review, we will be comparing RF-7 III and R-625FA, two Passive Floor-standing speakers by Klipsch
Let's have a brief look at the main features
of Klipsch RF-7 III and Klipsch R-625FA first before getting into our more
detailed comparison.
Klipsch RF-7 III Key Specs
- 2-way Design
- 1.75" dome Tweeter
- 2 x 10" Cerametallic Woofer
- 32-25k Hz Frequency Response
- 100 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 250watts
- Weight:44.10kg
- Dimensions (H x W x D): 1247.0" x 13-15/16" x 17-15/16"( 1247.0 x 355.0 x 456.0mm )
Klipsch R-625FA Key Specs
- 2-way Design
- 1" Tweeter
- 2 x 6.5" Copper-spun IMG Woofer
- 38-21k Hz Frequency Response
- 96 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 100watts
- Weight:22.20kg
- Dimensions (H x W x D): 1021.0" x 9-3/8" x 16-3/4"( 1021.0 x 239.0 x 426.0mm )
RF-7 III and R-625FA are members of Klipsch's Reference (R) Floor-standing series of speakers. Below you can find the loudspeakers from this series.
Klipsch Reference (R) Floor-standing Series
History
What size room are the Klipsch RF-7 III 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:
| Listening Environment* |
Klipsch RF-7 III |
Klipsch R-625FA |
| Near-field |
Bad |
Poor |
| Small Room |
Poor |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Good |
Poor |
| Very Large Room |
Average |
Bad |
(* 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 Klipsch RF-7 III 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.
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Drivers
Both RF-7 III and R-625FA are 2-way speakers.
| Driver |
Klipsch RF-7 III |
Klipsch R-625FA |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1.75-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 10-inch
|
2 x 6.5-inch
|
RF-7 III features a 1.75" titanium dome Tweeter and 2 x 10" Cerametallic Woofer with a Crossover frequency at 1300Hz. 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
RF-7 III has a frequency range of 32-25k Hz whereas R-625FA has a frequency range of 38-21k Hz. With a minimum frequency of 32Hz, the RF-7 III can go significantly deeper on the low side and provide stronger bass compared to the R-625FA'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
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
RF-7 III and R-625FA have the same Impedance of 8 ohms but where they differ is the sensitivity levels. RF-7 III sensitivity is rated at 100 dB and the R-625FA's is at 96 dB. This 4 dB difference makes the Klipsch RF-7 III a more sensitive speaker compared to Klipsch R-625FA, 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.
RF-7 III can handle a max power of 250 watts RMS from the amp the whereas R-625FA has a max power handling value of 100 watts RMS, 150 watts less than the RF-7 III.
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
RF-7 III features Binding post posts which make bi-amping or bi-wiring possible. R-625FA has a Post which doesn't feature bi-amping/bi-wiring.
Klipsch RF-7 III's Binding post terminals allows Bi-amping or bi-wiring
Klipsch R-625FA's Post terminals
Cabinet Type and Port Position
Both RF-7 III 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 Klipsch RF-7 III's and Klipsch R-625FA's external dimensions. Klipsch RF-7 III has external dimensions of 1247.0 x 355.0 x 456.0mm ( 49-1/16 x 13-15/16 x 17-15/16inch) 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 RF-7 III is clearly the larger of the two speakers. Its body is 116mm wider, 226mm taller and 30mm deeper than Klipsch R-625FA.
Below you can see the front view size comparison of Klipsch RF-7 III and Klipsch R-625FA in scale.
Comparison image of Klipsch RF-7 III and Klipsch R-625FA Size and External Dimensions
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 Klipsch RF-7 III is approximately 1618.8cm2 / 250.9inch2 and base area of the Klipsch R-625FA is approximately 1018.1cm2 / 157.8inch2. The RF-7 III requires 59% more surface area than the R-625FA which gives it a small disadvantage on placement in tight spaces.