In this review, we will be comparing XT70 and R-620F, two Passive Floor-standing speakers from Polk Audio and Klipsch. Let's have a brief look at the main features
of Polk XT70 and Klipsch R-620F first before getting into our more
detailed comparison.
What size room are the Polk XT70 and Klipsch R-620F 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 Polk XT70 and Klipsch R-620F 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 XT70 and R-620F are 2-way speakers. XT70 features a 1" Terylene dome Tweeter and 2 x 6.5" Bi-laminate paper Woofer . On the other hand, the R-620F features a 1.0" Tweeter and 2 x 6.5" Copper-spun IMG Woofer with a Crossover frequency at 2000Hz.
Frequency Response
XT70 has a frequency range of 35-40k Hz whereas R-620F has a frequency range of 38-21k Hz. With a minimum frequency of 38Hz, the R-620F can go slightly deeper then the XT70's min frequency of 35Hz.
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
XT70 and R-620F have the same Impedance of 8 ohms but where they differ is the sensitivity levels. XT70 sensitivity is rated at 86 dB and the R-620F's is at 96 dB. This 10 dB difference makes the Klipsch R-620F a more sensitive speaker compared to Polk XT70, 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.
XT70 can handle a max power of 200 watts RMS from the amp the whereas R-620F has a max power handling value of 100 watts RMS, 100 watts less than the XT70.
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
XT70 features Post type posts and R-620F has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
Klipsch R-620F's Post terminals
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 Polk XT70's and Klipsch R-620F's external dimensions. Polk XT70 has external dimensions of 1031.0 x 275.0 x 340.0mm ( 40-9/16 x 10-13/16 x 13-3/8inch) whereas Klipsch R-620F has external dimensions of 1021.0 x 239.0 x 369.0mm ( 40-3/16 x 9-3/8 x 14-1/2inch) .
Klipsch R-620F is 36mm narrower and 10mm shorter than Polk XT70 but it is also 29mm deeper.
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 Polk XT70 is approximately 935.0cm2 / 144.9inch2 and base area of the Klipsch R-620F is approximately 881.9cm2 / 136.7inch2. The XT70 requires 6% more surface area than the R-620F 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 Polk XT70 weighs 15.91kg / 35lbs and the Klipsch R-620F weighs 18.64kg / 41lbs. This makes the R-620F 17% heavier than the XT70.
Here is a comparison of how XT70 and R-620F'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 Polk XT70?
Here are the items that are included inside the box of XT70:
Floorstanding loudspeakerGrille (attached)Owners ManualOnline Product Registration
What's in the Box of Klipsch R-620F?
Here are the items that come with the R-620F:
Floorstanding loudspeaker Grille (installed) 2 Feet 4 Screws Quick Setup Guide Important Safety Instructions Warranty Information Loudspeaker Feet note
 Max Input Power |
200 watts
vs
100 watts
|
Handle more power from your amplifier |
 Low Frequency Response |
35 Hz
vs
38 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
21k Hz
|
Generates higher frequency |
 Passive Radiator |
two 8-inch
vs
None
|
Increases the bass performance |
 Dolby Atmos Drivers |
Optional
vs
No
|
Dolby Atmos Compatibility |
 Price per pair* |
698USD
vs
998USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
96 dB
vs
86 dB
|
Play louder with same amount of amplification power |
 Height |
1021mm
vs
1031mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
881cm2 (239x369mm)
vs
935cm2 (275x340mm)
|
Takes less floor space |
| General |
Polk Audio Monitor XT70 |
Klipsch Reference R-620F |
| Brand |
Polk Audio |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
25-200 watts |
up to 100 watts |
| Sensitivity |
86 dB |
96 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
35-40k Hz |
38-21k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Bi-laminate paper |
Copper-spun IMG |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1.0" |
| Tweeter Type |
dome |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
2000Hz |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
1031.0mm (40.6") |
1021.0mm (40.2") |
| Width |
275.0mm (10.8") |
239.0mm (9.4") |
| Depth |
340.0mm (13.4") |
369.0mm (14.5") |
| Weight |
15.91kg (35lbs) |
18.64kg (41lbs) |
| Enclosure |
Passive Radiator |
Bass Reflex |
| Finish |
MDF, Vinyl |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |