In this review, we will be comparing R-625FA and RTi A5, two Passive Floor-standing speakers from Klipsch and Polk Audio. Let's have a brief look at the main features
of Klipsch R-625FA and Polk RTi A5 first before getting into our more
detailed comparison.
What size room are the Klipsch R-625FA and Polk RTi A5 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 Klipsch R-625FA and Polk RTi A5 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 R-625FA and RTi A5 are 2-way speakers.
| Driver |
Klipsch R-625FA |
Polk RTi A5 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
R-625FA features a 1" Tweeter and 2 x 6.5" Copper-spun IMG Woofer with a Crossover frequency at 2000Hz. On the other hand, the RTi A5 features a 1" Tweeter and 2 x 6.5" Polymer composite Woofer .
Frequency Response
R-625FA has a frequency range of 38-21k Hz whereas RTi A5 has a frequency range of 40-26k Hz. With a minimum frequency of 38Hz, the R-625FA can go slightly deeper then the RTi A5's min frequency of 40Hz.
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
R-625FA and RTi A5 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. R-625FA sensitivity is rated at 96 dB and the RTi A5's is at 90 dB. This 6 dB difference makes the Klipsch R-625FA a more sensitive speaker compared to Polk RTi A5, 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.
R-625FA 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 RTi A5.
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
RTi A5 features 5-way post posts which make bi-amping or bi-wiring possible. R-625FA has a Post which doesn't feature bi-amping/bi-wiring.
Klipsch R-625FA's Post terminals
Cabinet Type and Port Position
R-625FA has a rear firing port whereas RTi A5 has a front firing ports. Polk RTi A5's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Klipsch R-625FA 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 Klipsch R-625FA's and Polk RTi A5's external dimensions. 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) whereas Polk RTi A5 has external dimensions of 1007.0 x 269.0 x 404.0mm ( 39-5/8 x 10-9/16 x 15-7/8inch) .
Polk RTi A5 is 14mm shorter and 22mm less deeper than Klipsch R-625FA but it is also 30mm wider.
Below you can see the front view size comparison of Klipsch R-625FA and Polk RTi A5 in scale.
Comparison image of Klipsch R-625FA and Polk RTi A5 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 R-625FA is approximately 1018.1cm2 / 157.8inch2 and base area of the Polk RTi A5 is approximately 1086.8cm2 / 168.5inch2. The R-625FA requires 6% less surface area than the RTi A5 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 Klipsch R-625FA weighs 22.20kg / 48.8lbs and the Polk RTi A5 weighs 18.18kg / 40lbs. This makes the R-625FA 22% heavier than the RTi A5.
Here is a comparison of how R-625FA and RTi A5'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 are included inside the box of R-625FA:
Floorstanding loudspeaker2 Grilles (installed)2 Feet4 ScrewsQuick Setup GuideImportant Safety InstructionsWarranty InformationLoudspeaker Feet note
What's in the Box of Polk RTi A5?
Here are the items that come with the RTi A5:
Cherry floor-standing speakerDetachable black cloth grille4 Screw-on spike feetOwners ManualOnline registration sheetPolk Audio product brochure
 Sensitivity |
96 dB
vs
90 dB
|
Play louder with same amount of amplification power |
 Low Frequency Response |
38 Hz
vs
40 Hz
|
Generates deeper bass |
 Dolby Atmos Drivers |
Built-in 1 x 5.25
vs
No
|
Dolby Atmos Compatibility |
 Base Surface Area |
1018cm2 (239x426mm)
vs
1086cm2 (269x404mm)
|
Takes less floor space |
 Max Input Power |
250 watts
vs
100 watts
|
Handle more power from your amplifier |
 High Frequency Response |
26k Hz
vs
21k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 Height |
1007mm
vs
1021mm
|
Easier to fit in smaller spaces |
| General |
Klipsch Reference R-625FA |
Polk Audio RTi A5 |
| Brand |
Klipsch |
Polk Audio |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 100 watts |
20-250 watts |
| Sensitivity |
96 dB |
90 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
38-21k Hz |
40-26k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Copper-spun IMG |
Polymer composite |
| Woofer Surround Material |
Rubber |
Butyl Rubber |
| Tweeter Size |
1" |
1" |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2000Hz |
n/a |
| Firing Direction |
rear |
front |
Physical Specs |
|
|
| Height |
1021.0mm (40.2") |
1007.0mm (39.6") |
| Width |
239.0mm (9.4") |
269.0mm (10.6") |
| Depth |
426.0mm (16.8") |
404.0mm (15.9") |
| Weight |
22.20kg (48.8lbs) |
18.18kg (40lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
Real wood veneer |
| Available Colors |
Black |
Cherry |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |