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Polk RTi A5 vs Klipsch R-620F Comparison

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Polk RTi A5

Passive Floor-standing | 40-26k Hz

Polk Audio RTi A5
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Klipsch R-620F

Passive Floor-standing | 38-21k Hz

Klipsch Reference R-620F
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Polk RTi A5 Polk RTi A5
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Klipsch R-620F Klipsch R-620F
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Polk RTi A5
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Klipsch R-620F
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Polk RTi A5 vs Klipsch R-620F Speaker Comparison

In this review, we will be comparing RTi A5 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 RTi A5 and Klipsch R-620F first before getting into our more detailed comparison.

Polk RTi A5 Key Specs

  • 2-way Design
  • 1" Tweeter
  • 2 x 6.5" Polymer composite Woofer
  • 40-26k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-250watts
  • Weight:18.18kg
  • Dimensions (H x W x D): 1007.0" x 10-9/16" x 15-7/8"( 1007.0 x 269.0 x 404.0mm )

Klipsch R-620F Key Specs

  • 2-way Design
  • 1.0" 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:18.64kg
  • Dimensions (H x W x D): 1021.0" x 9-3/8" x 14-1/2"( 1021.0 x 239.0 x 369.0mm )

What size room are the Polk RTi A5 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:

Listening Environment* Polk RTi A5 Klipsch R-620F
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 Polk RTi A5 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.


**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 RTi A5 and R-620F are 2-way speakers.

Driver Polk RTi A5 Klipsch R-620F
Driver Setup 2-way 2-way
Tweeter 1-inch 1.0-inch
Midrange - -
Woofer 2 x 6.5-inch 2 x 6.5-inch

RTi A5 features a 1" Tweeter and 2 x 6.5" Polymer composite 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

RTi A5 has a frequency range of 40-26k 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 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

RTi A5
R-620F
Min
Average
Max
High Frequency

Floor-standing Speakers

Polk RTi A5
Klipsch R-620F
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

RTi A5 and R-620F have the same Impedance of 8 ohms but where they differ is the sensitivity levels. RTi A5 sensitivity is rated at 90 dB and the R-620F's is at 96 dB. This 6 dB difference makes the Klipsch R-620F a more sensitive speaker compared to Polk RTi A5, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

RTi A5
R-620F
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.

RTi A5 can handle a max power of 250 watts RMS from the amp the whereas R-620F 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-620F has a Post which doesn't feature bi-amping/bi-wiring.

Klipsch R-620FPost Terminals
Klipsch R-620F's Post terminals

Cabinet Type and Port Position

RTi A5 has a front firing port whereas R-620F has a rear firing ports. Polk RTi A5's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Klipsch R-620F 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 Polk RTi A5's and Klipsch R-620F's external dimensions. 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) 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 30mm narrower and 35mm less deeper than Polk RTi A5 but it is also 14mm taller.

Below you can see the front view size comparison of Polk RTi A5 and Klipsch R-620F in scale.

Polk RTi A5 vs Klipsch R-620F Size Comparison - Front View
Comparison image of Polk RTi A5 and Klipsch R-620F 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 Polk RTi A5 is approximately 1086.8cm2 / 168.5inch2 and base area of the Klipsch R-620F is approximately 881.9cm2 / 136.7inch2. The RTi A5 requires 23% 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 RTi A5 weighs 18.18kg / 40lbs and the Klipsch R-620F weighs 18.64kg / 41lbs. This makes the R-620F 3% heavier than the RTi A5.

Here is a comparison of how RTi A5 and R-620F's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
Polk RTi A5
Klipsch R-620F
Min
Average
Max

What's in the Box of Polk RTi A5?

Here are the items that are included inside the box of RTi A5:
  • Cherry floor-standing speaker
  • Detachable black cloth grille
  • 4 Screw-on spike feet
  • Owners Manual
  • Online registration sheet
  • Polk Audio product brochure
  • 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

  • Reasons to choose Polk Audio RTi A5 over Klipsch Reference R-620F
    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

    Reasons to choose Klipsch Reference R-620F over Polk Audio RTi A5

    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
    Base Surface Area 881cm2 vs 1086cm2 Takes less floor space
    Polk RTi A5 vs Klipsch R-620F Specs Table
    Detailed comparison of specifications
    General Polk Audio RTi A5 Klipsch Reference R-620F
    Brand Polk Audio Klipsch
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range 20-250 watts up to 100 watts
    Sensitivity 90 dB 96 dB
    Impedance 8 ohms 8 ohms
    Frequency Response 40-26k Hz 38-21k Hz
    Drivers
    Woofer Quantity 2 2
    Woofer Size 6.5" 6.5"
    Woofer Composition Polymer composite Copper-spun IMG
    Woofer Surround Material Butyl Rubber Rubber
    Tweeter Size 1" 1.0"
    Aimable Tweeter No No
    Midrange Driver No No
    Crossover Frequency n/a 2000Hz
    Firing Direction front rear
    Physical Specs
    Height 1007.0mm (39.6") 1021.0mm (40.2")
    Width 269.0mm (10.6") 239.0mm (9.4")
    Depth 404.0mm (15.9") 369.0mm (14.5")
    Weight 18.18kg (40lbs) 18.64kg (41lbs)
    Enclosure Bass Reflex Bass Reflex
    Finish Real wood veneer MDF/Wood-grain vinyl
    Available Colors Cherry Black
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes No
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

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