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  1. Home
  2. Klipsch Speakers
  3. Passive Floor-standing Speakers
  4. Klipsch OJAS kO-R2
Klipsch kO-R2 Review
Klipsch OJAS kO-R2 - Front View

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Main Features

  • Compression Horn Tweeter
  • 15" Paper Woofer
  • 39-20k Hz Frequency Response
  • 97 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: up to 300 watts
  • Weight: 120.48 lbs / 54.65 kg
  • Dimensions(HxWxD): 45-1/2"x25-3/8"x22-1/4" / 1156.0 x 645.0 x 565.0mm
MSRP: $8,498 (list price)
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Klipsch OJAS kO-R2 Review
Klipsch OJAS kO-R2 Klipsch OJAS kO-R2
Check price atAmazon›

Made by Klipsch · United States · since 1946 · sold through dealers

Klipsch OJAS kO-R2 is a 2-way Passive Horn Loaded Floor-standing speaker by Klipsch. It was released in 2026. It features a Compression Horn Tweeter and 1 x 15" Paper Woofer.

A collaboration with Devon Turnbull's OJAS: a K-33-E 15 inch woofer and a K-706 multisectoral horn in Baltic birch plywood, 97 dB sensitive. Built as a listening-room object rather than furniture.

The speaker has a frequency range of 39-20k Hz and a sensitivity of 97 dB. Klipsch OJAS kO-R2 has an MSRP of 8498$ per pair.

Room Size Suitability

The size of the room where you plan to use the Klipsch OJAS kO-R2 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-fieldAre you nuts?
Small RoomPoor
Mid-size RoomAverage
Large RoomGood
Very Large RoomGood

(* 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.)

Klipsch's Heritage Series of Loudspeakers

kO-R2 is a member of Klipsch's Heritage series of Passive speakers. The Heritage range are Klipsch's iconic hand-built American speakers, including the Cornwall, Heresy and horn-loaded La Scala, some in production for decades. Below you can see the main specs of these speakers.

See all 10 Klipsch Heritage models compared »

Klipsch Heritage Series Speakers
Model Frequency SensitivityImpedance Woofer
Klipsch Cornwall IV
Compare
34-20k Hz 102 dB8Ω 1 x 15"
Klipsch La Scala AL6
Compare
40-19k Hz 103 dB8Ω 1 x 12"
Klipsch Forte IV
Compare
38-20k Hz 99 dB8Ω 1 x 12"
Klipsch Heresy IV
Compare
48-20k Hz 99 dB8Ω 1 x 12"
Klipsch Klipschorn AK7
Compare
34-19k Hz 103 dB8Ω 1 x 15"
Klipsch La Scala AL5
Compare
51-20k Hz 105 dB8Ω 1 x 15"
Klipsch Klipschorn AK6
Compare
33-20k Hz 105 dB8Ω 1 x 15"
Klipsch Heresy III
Compare
58-20k Hz 99 dB8Ω 1 x 12"
Klipsch Heritage Rebellion
Compare
60-20k Hz 95 dB8Ω 1 x 8"
Klipsch OJAS kO-R2
39-20k Hz 97 dB8Ω 1 x 15"
Klipsch Heritage Series Speakers
Klipsch Heritage Series Speakers

Frequency Response of the Klipsch OJAS kO-R2 Speaker

Klipsch OJAS kO-R2 has a Frequency response range of 39-20k Hz and Power Range of up to 300 watts. With a minimum frequency of 39 Hz, kO-R2 delivers deep bass that will likely satisfy most listeners, especially those who enjoy music. However, movie enthusiasts and music fans who prefer a full range of sound may still benefit from adding a subwoofer.

Here we have a comparison of how kO-R2's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Floor-standing Speakers
Klipsch OJAS kO-R2
Min
Average
Median
Thinking about a subwoofer for the Klipsch OJAS kO-R2?
  • Work out the crossover setting - it follows from this speaker's 39 Hz low end
  • Every powered subwoofer we cover, whatever the budget

Among the speakers in our database with a max MSRP price of 10000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the Klipsch OJAS kO-R2's 39Hz:

  • PSB Synchrony T600 with Low Frequency of 24 Hz (Compare w/ kO-R2)
  • KLH Kendall with Low Frequency of 25 Hz (Compare w/ kO-R2)
  • GoldenEar Triton Five with Low Frequency of 26 Hz (Compare w/ kO-R2)
  • Monitor Audio Silver 500 7G with Low Frequency of 27 Hz (Compare w/ kO-R2)
  • MartinLogan Motion XT F200 with Low Frequency of 27 Hz (Compare w/ kO-R2)

Crossover frequency of the Klipsch OJAS kO-R2?

The crossover frequency of the kO-R2 is set to 760Hz. 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.

Klipsch OJAS kO-R2 driver frequency bands39-760Woofer 15"760-20kTweeter20501002005001k2k5k10k20k40kHz, log scale

Impedance and Sensitivity

Klipsch OJAS kO-R2's nominal impedance level is 8 ohms but can go down to as low as 4.2 ohms, and has a sensitivity of 97 dB.

Sensitivity
Floor-standing Speakers
Klipsch OJAS kO-R2
Min
Average
Median

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Klipsch OJAS kO-R2 is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

97dB of the Klipsch OJAS kO-R2 is considered a high sensitivity compared to average stereo speaker which makes kO-R2 an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the Klipsch OJAS kO-R2 will be a good choice. Work out how loud the Klipsch OJAS kO-R2 plays in your room →

Minimum Impedance of the Klipsch OJAS kO-R2

Even though the nominal impedance of the kO-R2 is 8 ohms, the minimum impedance level of this speaker according to Klipsch is 4.2 ohms Klipsch OJAS kO-R2 so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.

What amplifier does the Klipsch OJAS kO-R2 need?

At normal listening levels in a medium room, about 1.5–60 W per channel into 8 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? See every integrated amplifier we cover.

Input Type

kO-R2 features Binding post type connectors.

Work out what gauge speaker cable this run needs →

Klipsch OJAS kO-R2 External Dimensions and Weight

Klipsch OJAS kO-R2 has external dimensions of (Height x Width x Depth) 45-1/2 x 25-3/8 x 22-1/4inch (1156.0 x 645.0 x 565.0mm ).

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 Klipsch OJAS kO-R2 is approximately 3644.3cm2 / 564.9inch2.

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The Klipsch OJAS kO-R2 weighs 54.65kg / 120.2lbs per piece. Here is a comparison of how kO-R2's weight compares with the average, max and min weights in its class.

Weight
All Floor-standing Speakers
Klipsch OJAS kO-R2
Min
Average
Median
Weight
Floor-standing Speakers under $10000
Klipsch OJAS kO-R2
Min
Average
Max

Cabinet type and Materials

Klipsch OJAS kO-R2 has a Horn Loaded type cabinet and a 13-ply Baltic birch plywood finish.

Port Position

Klipsch OJAS kO-R2 is a front-firing port speaker, which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.

Available colors

Klipsch OJAS kO-R2 is available in Red Oak and Hammertone.

Does the Klipsch OJAS kO-R2 come with a Grille?

kO-R2 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the Klipsch OJAS kO-R2.

  • 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 are our favorite isolators but you may find 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.

Official Product Page

Official manufacturer's product page for the Klipsch OJAS kO-R2 speaker can be found below:
Official Product Page for Klipsch OJAS kO-R2

Warranty

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

Klipsch OJAS kO-R2 Alternatives in Passive Floor-standing Speakers
Model Type Sensitivity Impedance Frequency
Klipsch Cornwall IV
Compare
3-way 102 dB 8 ohms 34-20k Hz
Klipsch Heresy III
Compare
3-way 99 dB 8 ohms 58-20k Hz
Klipsch Heresy IV
Compare
3-way 99 dB 8 ohms 48-20k Hz
Klipsch Klipschorn AK6
Compare
3-way 105 dB 8 ohms 33-20k Hz
Klipsch La Scala AL6
Compare
3-way 103 dB 8 ohms 40-19k Hz
Klipsch Forte IV
Compare
3-way 99 dB 8 ohms 38-20k Hz
Klipsch Klipschorn AK7
Compare
3-way 103 dB 8 ohms 34-19k Hz
Klipsch La Scala AL5
Compare
3-way 105 dB 8 ohms 51-20k Hz
Frequently Asked Questions about Klipsch OJAS kO-R2

What amplifier do you need for the Klipsch OJAS kO-R2?

Klipsch rates the Klipsch OJAS kO-R2 for up to 300 watts of amplifier power. It is an 8-ohm speaker, the usual nominal load, so almost any amplifier or receiver can drive it.

Is the Klipsch OJAS kO-R2 easy to drive?

The Klipsch OJAS kO-R2 has a sensitivity of 97 dB. That is high: it goes loud on modest power, so it suits low-powered amplifiers, including valve/tube designs.

Does the Klipsch OJAS kO-R2 need a subwoofer?

The Klipsch OJAS kO-R2 reaches down to 39Hz (full range 39-20k Hz). That is deep enough that many listeners will not feel the need for a subwoofer with music.

What drivers does the Klipsch OJAS kO-R2 use?

The Klipsch OJAS kO-R2 is a 2-way design using a Compression Horn tweeter and a 15" Paper woofer.

Is the Klipsch OJAS kO-R2 sealed or ported?

The Klipsch OJAS kO-R2 uses a Ported enclosure. A ported design uses a tuned vent to get more low-end output from the same driver, but it wants some breathing room behind it.

Does the Klipsch OJAS kO-R2 come with grilles?

Yes. The Klipsch OJAS kO-R2 comes with removable grilles.

How big and heavy is the Klipsch OJAS kO-R2?

The Klipsch OJAS kO-R2 weighs 54.65kg / 120.2lbs each and measures 45-1/2 x 25-3/8 x 22-1/4inch (HxWxD).

How much does the Klipsch OJAS kO-R2 cost?

The Klipsch OJAS kO-R2 has a manufacturer's list price (MSRP) of $8,498 per pair.


Klipsch OJAS kO-R2 Detailed Specifications

General
BrandKlipsch
Full Model NameKlipsch OJAS kO-R2
Speaker Type2-way Floor-standing
Power Rangeup to 300 watts
Sensitivity97 dB
Impedance8 ohms
Max SPL118 dB
Frequency Response39-20k Hz
Release Date2026
DRIVERS
Woofer Size15-inch
Woofer CompositionPaper
Tweeter TypeCompression Horn
Crossover freq760Hz
Port Positionfront

CONNECTIONS
Connector TypeBinding post
Port Positionfront
PHYSICAL SPECS
Height1156.0mm ( 45-1/2-inch)
Width645.0mm ( 25-3/8-inch)
Depth565.0mm ( 22-1/4-inch)
Height1156.0mm ( 45-1/2-inch)
Weight54.65 kg (120.5 lbs)
EnclosureHorn Loaded
Finish13-ply Baltic birch plywood
Available ColorsRed Oak, Hammertone
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty5 Years
Labor Warranty5 Years
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