Material | MDF |
---|---|
Model name | R-51M |
Speaker type | Bookshelf |
Special feature | Radio |
Recommended uses for product | For Televisions, For Computers, For DVD Players |
Compatible devices | Laptop, Personal Computer, Tablet, Smartphone |
Subwoofer diameter | 5.25 Inches |
Controller type | Corded Electric |
Surround sound channel configuration | 1.0 |
Colour | Black |
Included components | Standard |
Product Dimensions | 17.8D x 21.5W x 38.8H Centimetres |
Age range (description) | Adult |
Item weight | 4.99 kg |
Is waterproof | FALSE |
Maximum range | 20 Meters |
Manufacturer | Klipsch |
Place of Business | Indianapolis, IN 46268,US |
Model | R-51M |
Part Number | R-51M |
Special features | Radio |
Number of Items | 2 |
Noise level | 88 dB |
Speaker Amplification Type | Passive |
Speaker connectivity | Wired |
Output Wattage | 340 Watts |
Voltage | 110 Volts |
Wattage | 340 watts |
Power source type | AC |
Batteries included | No |
Batteries Required | No |
Speaker Output Channel Quantity | 2 |
Material Type | MDF |
Manufacturer | Klipsch |
Item model number | R-51M |
ASIN | B07GDSL3NJ |
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Klipsch R-51M Bookshelf Speaker (Pair)
Brand | Klipsch |
Speaker maximum output power | 340 Watts |
Connectivity technology | Wireless |
Audio output mode | Stereo |
Mounting type | Shelf Mount |
About this item
- 1" Aluminum LTS tweeters
- 90x90 Square Tractrix Horns
- Dual 5.25" Spun-Copper IMG Woofers
- Bass-Reflex via Rear-Firing Port
- Dimensions: 13.3" x 7" x 8.5"
Product information
Technical Details
Additional Information
Date First Available | Aug. 5 2018 |
---|---|
Customer Reviews |
4.7 out of 5 stars |
鶹 Rank |
|
Is discontinued by manufacturer | No |
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Product description
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Top Brand: Klipsch
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This Item ![]() Klipsch R-51M Bookshelf Speaker (Pair) | Recommendations | |||||
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Price | — | -10%$249.99$249.99 List: $279.00 | $797.98$797.98 | $698.00$698.00 | $209.00$209.00 | $428.00$428.00 |
Delivery | — | Get it by Sunday, Aug 10 | Get it Aug 1 - 6 | Get it Aug 5 - 7 | Get it by Saturday, Aug 2 | Get it Aug 5 - 7 |
Customer ratings | ||||||
Sold by | — | 鶹.ca | Audio Video Unlimited | Gibby's Electronic Supermarket | 鶹.ca | Gibby's Electronic Supermarket |
speaker size | — | 3 inches | 5.25 inches | 4 inches | 400 millimeters | 10.16 centimeters |
power source | AC | Corded Electric | AC | Corded Electric | Corded Electric | Corded Electric |
connectivity tech | Wireless | Bluetooth 5.3, RCA | Wired | Bluetooth | wired, Wired | Bluetooth |
speaker type | Bookshelf | Bookshelf | Bookshelf | Bookshelf | Bookshelf | Bookshelf |
mounting type | Shelf Mount | Tabletop | Tabletop Mount | Tabletop Mount | Wall Mount | Tabletop Mount |
weight | 11 pounds | 1.5 kilograms | 13 pounds | 8.3 kilograms | 9 pounds | 14 pounds |
control method | remote | application | remote | touch | remote | remote |
model name | R-51M | AT-SP3X | RP-500M II Wal | R-40PM | MXT15 | R-40M |
frequency response | — | — | 20 hertz | 60 hertz | — | 71 hertz |
surround channels | 1 | 2 | 1 | 2.0 or 2.1 | 5.1 | 2 |
woofer diameter | 5.25 inches | 3 inches | 5.25 inches | 4 inches | 5.25 inches | 4 inches |
From the manufacturer


Leveraging a 1" aluminum tweeter matted to our proprietary Tractrix horn-loaded technology - the R-51M bookshelf speaker delivers incredible acoustics to fill your home with loud, crystal-clear sound and robust bass that no ordinary bookshelf speaker can.
FEATURES
- 1" Aluminum LTS tweeters
- 90x90 Square Tractrix Horns
- Dual 5.25" Spun-Copper IMG Woofers
- Bass-Reflex via Rear-Firing Port
- Strong, Flexible Removable Magnetic Grille
- Dimensions: 13.3" x 7" x 8.5"
Tractrix Horn Technology
Klipsch exclusive 90º x 90º Tractrix horn technology ensures that the speaker high frequency energy is aimed at the listener and reduces artificial reverb or filtering caused by indirect sound bouncing off of walls. Using this proprietary focused technology gives you the clarity, dynamics, and detail from your movies and music.
Linear Travel Suspension Tweeter
Klipsch exclusive Linear Travel Suspension (LTS) aluminum tweeter minimizes distortion for enhanced, detailed performances. Using Kapton, an extremely light and rigid material, in the tweeter suspension provides high efficiency and improve resolution and detail. LTS tweeters are a hallmark of Klipsch speakers, making them some of the speakers in the world.
Spun Copper Img Woofers
Injection Molded Graphite (IMG) woofer cones are exceptionally light while being extremely rigid – providing remarkable low frequency response, with minimal cone breakup and distortion. When paired with the Tractrix Horn-Loaded LTS Tweeter, it provides speaker efficiency high in its class.
Sleek Design
Exposed fasteners, low profile magnetic grilles and a scratch-resistant, textured wood grain vinyl give the R-51M bookshelf speakers a polished, modern appearance.
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Customer reviews
Customers say
Customers like the sound quality, appearance, and build quality of the speakers. They mention the sound has the ability to reach out and touch them, and the end result can be stunning. Customers also appreciate the compact size, saying it's perfect considering its size.
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Customers are satisfied with the sound quality of the speakers. They mention the sound is clear, loud, and dynamic. They also say the speakers are recommended for not too serious audiophiles. Customers also say they're fantastic pair for 2.1 stereo or as a high-end addition to full surround sound.
"Great speakers and sound fantastic" Read more
"Great sound compared to my older speakers" Read more
"Fantastic pair for 2.1 stereo or as a high end addition to full surround. Even as main fronts or studio monitors these are phenomenal value...." Read more
"Clear, loud, and dynamic sound. Although the bass in not very low it is clear, and the mid-range is forward, detailed, and dynamic...." Read more
Customers like the appearance of the speakers. They mention they're superb, sound amazingly clear, and crisp. They also say the end result can be stunning.
"Great speaker. The sound is tight, clean, crisp, and evenly balanced. Of a size where you’re going to want a sub fir larger rooms...." Read more
"...These pack a punch, they're very clean in looks and sound, but if you're into warm sound (lows and mids emphasized) rather than bright, clean vocals..." Read more
"...They look lovely, and sound even lovelier. Very balanced hi-lo-mid, and full sounding...." Read more
"These speakers sound good. Nice and compact." Read more
Customers are satisfied with the build quality of the speakers. They mention they're sturdy, better than the Bic America and better than their Fluance SX6s.
"Good choice I am happy I have chosen this model With 10”sub it makes perfect sound" Read more
"Quality product at reasonable price; highly recommended." Read more
"Excellent product, thanks for fast delivery service. Didn’t hookup as now, like the size & look. Money worth. Spend." Read more
"...The price is very reasonable for what you get, and the build quality is more than satisfactory. I really like the magnetic grill; it fits perfectly...." Read more
Customers like the size of the speakers. They mention they're perfect considering their size, compact, and huge. They also say they have a clear, crisp sound in a small enclosure.
"These speakers sound good. Nice and compact." Read more
"...drive these very well for an 8ohm passive speaker, which is great for small units or a cottage or apartment...." Read more
"...I really like the magnetic grill; it fits perfectly. Also, they are small and sleek enough that they would be a great choice for home theatre fronts" Read more
"...Very lively.... perfect considering their size. Yes I would recommend these speakers." Read more
Reviews with images

Fantastic pair for 2.1 stereo or as a high end addition to full surround
Top reviews from Canada
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- Reviewed in Canada on January 25, 2023Verified PurchaseFantastic pair for 2.1 stereo or as a high end addition to full surround. Even as main fronts or studio monitors these are phenomenal value. Never buy a pre-built again, a simple DAC amp or receiver with a powered sub is way better bang for the buck.
Crystal clear audio at very low volumes as well as very loud. They respond excellent to software equalization, capable of some bass on their own if you don't want a full subwoofer with them (highly recommend 10" or larger subwoofer). The sensitivity is such that even a simple amp can drive these very well for an 8ohm passive speaker, which is great for small units or a cottage or apartment.
They're very bright in sound thanks to the horn shape tweeter space, but if you keep the magnetic shields on it attenuate the high end just a little for a personal preference adjustment.
After breaking them in for a week there's no hissing, whine, static, fuzz, or any discernable audio when playback is stopped so careful not to leave them on, there's almost no way to tell just by listening for electrical noise.
These pack a punch, they're very clean in looks and sound, but if you're into warm sound (lows and mids emphasized) rather than bright, clean vocals and instruments this brand may not be your best fit. These are amazing for all types and styles of music, and especially movies / games with that clear high end though, so I'd recommend them to anyone on a budget who wants an upgrade from even the best all-in-one stereos available. Build a system with these speakers and a small amp and you'll have a system to gush over for years to come since these can be added on to any high end home theatre solution at any price range down the line.
5.0 out of 5 starsFantastic pair for 2.1 stereo or as a high end addition to full surround. Even as main fronts or studio monitors these are phenomenal value. Never buy a pre-built again, a simple DAC amp or receiver with a powered sub is way better bang for the buck.Fantastic pair for 2.1 stereo or as a high end addition to full surround
Reviewed in Canada on January 25, 2023
Crystal clear audio at very low volumes as well as very loud. They respond excellent to software equalization, capable of some bass on their own if you don't want a full subwoofer with them (highly recommend 10" or larger subwoofer). The sensitivity is such that even a simple amp can drive these very well for an 8ohm passive speaker, which is great for small units or a cottage or apartment.
They're very bright in sound thanks to the horn shape tweeter space, but if you keep the magnetic shields on it attenuate the high end just a little for a personal preference adjustment.
After breaking them in for a week there's no hissing, whine, static, fuzz, or any discernable audio when playback is stopped so careful not to leave them on, there's almost no way to tell just by listening for electrical noise.
These pack a punch, they're very clean in looks and sound, but if you're into warm sound (lows and mids emphasized) rather than bright, clean vocals and instruments this brand may not be your best fit. These are amazing for all types and styles of music, and especially movies / games with that clear high end though, so I'd recommend them to anyone on a budget who wants an upgrade from even the best all-in-one stereos available. Build a system with these speakers and a small amp and you'll have a system to gush over for years to come since these can be added on to any high end home theatre solution at any price range down the line.
Images in this review
- Reviewed in Canada on January 28, 2025Verified PurchaseGood choice
I am happy I have chosen this model
With 10”sub it makes perfect sound
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Reviewed in Canada on February 27, 2025Verified Purchasele sons est super et le prix est tres bon
- Reviewed in Canada on February 24, 2025Verified PurchaseExcellent speakers ! Klipsch top
- Reviewed in Canada on September 11, 2021Verified PurchaseUsing R51-M spkrs in my listening room paired with a yamaha receiver, & 12" sub. They look lovely, and sound even lovelier. Very balanced hi-lo-mid, and full sounding. I've tried it without using the subwoofer, and they still sound great. The price is very reasonable for what you get, and the build quality is more than satisfactory. I really like the magnetic grill; it fits perfectly. Also, they are small and sleek enough that they would be a great choice for home theatre fronts
- Reviewed in Canada on January 24, 2021Verified PurchaseThese speakers sound good. Nice and compact.
- Reviewed in Canada on October 18, 2022Verified PurchasePaired R51Ms and R41Ms as fronts and rears respectively and couldn't be happier.
They are very responsive and tuning them a bit brings out the best out of them. A bit too bright at first but if your AV receiver has tuning software, the end result can be stunning.
A bit expensive here in Canada. I've heard of people buying these at almost half the price in the US at Costco sale events.
Aesthetically pleasing, especially without the covers - wife acceptance factor checks out.
Recommended for not too serious audiophiles.
- Reviewed in Canada on September 20, 2021Verified PurchaseI have had these for about three weeks thus far. They are very nice little speakers. Mine are not even broken in as of yet, and I still love them. Speakers take approximately 100 hours to properly break-in, and it makes a big difference once they are. They actually have a very nice low end, but this depends on where and how you place them. Add a subwoofer and you will be able to fill a medium sized room very nicely. I use mine on a racing simulator and a laptop for music. Very lively.... perfect considering their size. Yes I would recommend these speakers.
Top reviews from other countries
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AnselmoReviewed in Brazil on March 21, 2025
5.0 out of 5 stars Entregou rápido!
Verified PurchaseEntrega feita antes da promessa, bem embalado, a caixa de som é perfeita. Qualidade e custo benefício excelente.
- Yamen ZeinReviewed in the United Arab Emirates on January 9, 2025
5.0 out of 5 stars Amazing audiophile-level sound at an unbeatable budget price!
Verified PurchaseThese R-51M bookshelf speakers have been on my Wishlist since I first listed to them a year ago. To be clear, I am not a big fan of the so called "Klipsch sound"; however, these speakers can sing beautifully!
Paired with a Harman HK3490, a Harman AVR171/171S, or an Onkyo TX-RZ50, the sound you get out of these is unmatched for the price point in my opinion.
Although these do not go very low, the bass performance you get from 100Hz and below is quick and punchy, though you will require a subwoofer if you mean business. Now, the stars of the show; the mid range and high notes! I cannot even begin to describe how awesome these sound! The mid range is very clean with sublime vocals, and the top range is so detailed and provides insane clarity. I had these hooked in to my receiver for a good time and never felt fatigue, which I usually get rather fast with other Klipsch speakers I listen to.
If you're one of those who are after clinical tests of neutrality, I doubt that these speakers are for you. However, if you forget graphs for a second and give these a listen if you can demo them somewhere, I am sure you'll hear a lot to appreciate. I used these as my main speakers for listening in the near field and in a mid-sized room with no treatment.
Finally, I also think the R-51M looks beautiful with those silver screws contrasting the black baffle, the copper drivers, and the tweeter's horn. I find them very pleasing to look at with the grill too but mostly without it.
To sum up, these are very clear and detailed sounding speakers with reference-level audiophile performance. They are very dynamic, engaging, and fun to listen to, and they're a bargain at the current price for the performance you get. For reference, my main audiophile system is based on a pair Focal Chora towers, so if I like the sound of these, it speaks volume about the value for money you get from the Klipsch R-51M!
- ethanReviewed in the United States on July 21, 2025
5.0 out of 5 stars Crystal Clear Sound
Verified PurchasePicked these up on sale, and they were exactly what I needed to elevate my setup. Able to be driven by a small A-class amp, they have perfectly clear mids and vocals with a punchy bass, without needing a sub. A little big for a desk setup, but feel and sound nice for what you pay.
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FranciscoReviewed in Mexico on December 25, 2023
5.0 out of 5 stars Buen sonido por lo que se apaga
Verified PurchaseMenciono otra vez que no soy profesional del audio y aprendo de los videos de YouTube.
Llego bien la caja, sin daños y adentro de otra caja.
Buen sonido, pero se escucha mejor separando las bocinas entre sí unos 4 metros, las tengo en una sala de 5x4 metros, con muebles y sin acondicionar.
Alimentadas por un amplificador SMSL AO200MKII y con Deezer.
Pero llega un momento que se distorsiona con los graves a un alto volumen, no es lo suyo los graves, hay que bajar los gravez. Los medios creo, se escuchan mas o menos.
Pero es necesario añadir un subwoofer y asi se escucha la diferencia, realmente se realza la calidad del sonido añadiendo un subwoofer. Las considero unas bocinas suficientes para llenar mi sala a buen volumen ( un poco alto) y buena calidad de audio.
Son las primeras bocinas que adquiero. No se como sonaran otras marcas , pero para empezar, valio la pena la compra. Ademas, con opcion de pago accesible.
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Cecchini MassimoReviewed in Italy on November 9, 2024
5.0 out of 5 stars Casse
Verified PurchaseOttime.