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Polk Audio RTi A1 Review
Polk Audio RTi A1

Main Features

  • 1" Dome Tweeter
  • 5.25" Polymer composite Woofer
  • 60-26k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 20-125watts
  • Weight:11.97 lbs / 5.44 kg
  • Dimensions(HxWxD): 12.0"x7.3"x11.5" / 304.8 x 187.5 x 292.1mm
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Polk RTi A1 Review
Polk RTi A1 Polk RTi A1
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Polk Audio RTi A1 is a 2-way Passive Bass Reflex Bookshelf speaker by Polk Audio. It features a 1" Dome Tweeter and 1 x 5.25" Polymer composite Woofer. The speaker has a frequency range of 60-26k Hz and a sensitivity of 89 dB. Polk RTi A1 has an MSRP of 382$ per pair but can often be found around 229$ per pair.

Room Size Suitability

The size of the room where you plan to use the Polk RTi A1 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldPoor
Small RoomAverage
Mid-size RoomGood
Large RoomAverage
Very Large RoomPoor

(* 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.)

Polk Audio's RTi Series of Loudspeakers

RTi A1 is a member of Polk Audio's RTi series of Passive speakers. Below you can see the main specs of these speakers.

Polk Audio RTi Series Speakers
Model Frequency SensitivityImpedance Woofer
Polk RTi A5
Compare
40-26k Hz 90 dB8Ω 2 x 6.5"
Polk RTi A9
Compare
30-26k Hz 90 dB8Ω 3 x 7"
Polk RTi A3
Compare
50-26k Hz 89 dB8Ω 1 x 6.5"
Polk RTi A1
60-26k Hz 89 dB8Ω 1 x 5.25"


**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.

Frequency Response of the Polk RTi A1 Speaker

Polk RTi A1 has a Frequency response range of 60-26k Hz at ±3dB and Power Range of 20-125 watts. With a minimum frequency of 60 Hz, RTi A1 delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.

To focus on the subwoofers that are in a similar price range with Polk RTi A1, check out the Powered Subwoofers under $500. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how RTi A1's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Bookshelf Speakers
Polk RTi A1
Min
Average
Max
High Frequency
Bookshelf Speakers
Polk RTi A1
Min
Average
Max

Crossover frequency of the Polk RTi A1?

The Crossover frequency of the RTi A1 is set to 1900Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.

Impedance and Sensitivity

Polk RTi A1's nominal impedance level is 8 ohms and has a sensitivity of 89 dB.

Sensitivity
Bookshelf Speakers
Polk RTi A1
Min
Average
Max

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Polk Audio RTi A1 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

89dB of the Polk Audio RTi A1 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise.

Check the amplifiers that are in a similar price range to the Polk RTi A1:

  • Integrated Amps under 300 USD
  • Integrated Amps under 500 USD
  • Integrated Amps under 750 USD
  • All Integrated Amplifiers

Input Type

RTi A1 has Pair of Dual 5-way Binding Posts - Gold-Plated type connectors and lets bi-amping/bi-wiring. Bi-wiring can enhance the overall transparency of your loudspeakers by using separate speaker wires for the low and high-frequency drivers from a single amplifier. Bi-amping, on the other hand, involves using separate amplifiers for the high and low-frequency drivers, potentially resulting in a greater dynamic range and reduced distortion.

Polk RTi A1 External Dimensions and Weight

Polk RTi A1 has external dimensions of (Height x Width x Depth) 12.0 x 7.3 x 11.5inch (304.8 x 187.5 x 292.1mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Polk RTi A1 is approximately 547.7cm2 / 84.9inch2.

To get a better perspective on the real life size of Polk RTi A1, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

Polk RTi A1 Real Life Body Size Comparison
Polk RTi A1 Speaker Size Compared to a Compact Disc

Here we place the Polk RTi A1 virtually next to a standard width amplifier and turntable on a BDI Octave Media Cabinet to get a better idea about the size.

Polk RTi A1 placed next to an amplifier and turntable
Polk RTi A1 Speaker next to an amplifier and turntable

Weight

The Polk RTi A1 weighs 5.44kg / 12lbs per piece. Here is a comparison of how RTi A1's weight compares with the average, max and min weights in its class.

Weight
All Bookshelf Speakers
Polk RTi A1
Min
Average
Max
Weight
Bookshelf Speakers under $500
Polk RTi A1
Min
Average
Max

How does the Polk RTi A1 compare to the Polk Audio RTi A3?

One of the natural alternative to the Polk RTi A1 is the RTi A3 which is located one step higher in Polk Audio's Passive Bookshelf selection.

Here is a scaled size comparison of these two speakers to give you an idea how their external dimensions compare:

Polk RTi A1 vs Polk RTi A3 Size Comparison - Front View
Comparison image of Polk RTi A1 and Polk RTi A3 Size and External Dimensions

Check the Detailed Comparison of Polk RTi A1 vs RTi A3 for more details.

Cabinet type and Materials

Polk RTi A1 has a Bass Reflex type cabinet and a Real wood veneer finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.

Speaker Feet

Polk RTi A1 comes with 8 Self-adhesive rubber feet which you can use to secure your loudspeaker on the surface that you are putting on.

It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.

Port Position

Polk RTi A1 is a back and front-firing port speaker

Available colors

Polk RTi A1 is available in Black and Cherry.

Wall Mounting

RTi A1 has Keyhole mounting bracket that makes it possible to mount on walls and similar surfaces easily.

What's in the Box of Polk RTi A1?

Here are the items that are included inside the box of RTi A1:
  • 2 Cherry bookshelf speakers
  • 2 Self-tapping screws
  • 8 Self-adhesive rubber feet
  • Owner's Manual
  • Template
  • Online registration sheet
  • Polk Audio product brochure
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the Polk Audio RTi A1.

    • Speaker Cable and Connectors
      • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
      • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
      • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
    • Vibration Isolators: IsoAcoustics isolators more affordable options too.
    • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
    • Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.

    User's Manual

    For more information about how to setup, use and maintain the Polk Audio RTi A1, use the direct link below to download the official manual document:
    Download User Manual for Polk RTi A1

    Official Brochure

    Here is a link to download the official brochure for the Polk Audio RTi A1 speaker:
    Official Brochure for Polk RTi A1

    Official Product Page

    Official manufacturer's product page for the Polk Audio RTi A1 speaker can be found below:
    Official Product Page for Polk RTi A1

    Warranty

    5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

    Polk Audio RTi A1 Alternatives in Passive Bookshelf Speakers
    Model Type Sensitivity Impedance Frequency
    Polk RTi A3
    Compare
    2-way 89 dB 8 ohms 50-26k Hz
    Polk TSi100
    Compare
    2-way 89 dB 8 ohms 61-24k Hz
    Polk S15
    Compare
    2-way 88 dB 8 ohms 50-40k Hz
    Klipsch R-51M
    Compare
    2-way 93 dB 8 ohms 62-21k Hz
    KEF Q150
    Compare
    2-way 86 dB 8 ohms 51-28k Hz
    Polk RTi A5
    Compare
    2-way 90 dB 8 ohms 40-26k Hz
    Polk S20
    Compare
    2-way 88 dB 8 ohms 39-40k Hz
    Polk RTi A9
    Compare
    3-way 90 dB 8 ohms 30-26k Hz
    Frequently Asked Questions about Polk Audio RTi A1
    What is the External Dimensions of Polk Audio RTi A1
    What is the Speaker Sensitivity of Polk Audio RTi A1
    is the Polk Audio RTi A1 an easy to drive speaker?

    Polk RTi A1 Detailed Specifications

    General
    BrandPolk Audio
    Full Model NamePolk Audio RTi A1
    Speaker Type2-way Bookshelf
    Power Range20-125 watts
    Sensitivity89 dB
    Impedance8 ohms
    Frequency Response60-26k Hz
    DRIVERS
    Woofer Size5.25-inch
    Woofer CompositionPolymer composite
    Woofer SurroundButyl rubber
    Tweeter Size1-inch
    Tweeter TypeDome
    Crossover freq1900Hz
    Port Positionback and front

    CONNECTIONS
    Connector TypePair of Dual 5-way Binding Posts - Gold-Plated
    Biamp InputsYes
    Port Positionback and front
    PHYSICAL SPECS
    Height304.8mm ( 12.0-inch)
    Width187.5mm ( 7.3-inch)
    Depth292.1mm ( 11.5-inch)
    Height304.8mm ( 12.0-inch)
    Weight5.44kg ( 11.97 lbs)
    EnclosureBass Reflex
    FinishReal wood veneer
    Available ColorsBlack, Cherry
    Mounting BracketKeyhole
    Recommended Stand Height28-36
    Moisture ResistanceNo
    OTHER
    Handheld RemoteNo
    Parts Warranty5 Years
    Labor Warranty5 Years
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