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Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

Model: 1065839 R-51-M
SKU: 11498222
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About this product

Set the mood in your home via music with these Klipsch speakers. The wood-grain vinyl exterior imparts a touch of sophisticated elegance to a room, while the Tractrix Horn technology provides clear, vibrant and rich musical tones. The titanium tweeter on these Klipsch speakers dampens high-frequencies to facilitate crisp, natural sound.

Features
  • Handles up to 340W peak power (85W continuous)

    For robust and controlled audio that is crisp and clear.

  • 5-1/4" spun copper injection molded graphite (IMG) woofer

    Along with 1" aluminum tweeter for a complete range of sounds.

  • 2-way speaker system

    Sounds like 1 source rather than several separate sources.

  • Vinyl woodgrain finish

    Offers a stylish look to complement your existing décor.

  • Removable grille

    Remains acoustically transparent while protecting the speaker's components.

  • Bass reflex enclosure

    With a rear-firing port promotes optimal performance.

  • 62Hz - 21kHz frequency response

    Ensures a wide range of accurately reproduced sound.

  • 93dB sensitivity

    Ensures crisp, robust audio.

  • 8 ohms nominal impedance

    Ensures efficient conduction of power through the speaker.

See all features
Specifications
  • Speaker Type
    Bookshelf
    RMS Power
    85 watts
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Reviews

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Awesome Sounding Speakers

    Pretty great pair of speakers. I had purchased them on sale so I thought, why not? Size wise, they were a bit large but no larger than other bookshelf speakers in its category. I'm not the most eloquent person, but I would say that the sounds of the speakers had plenty of clarity and was not muddied by the equally great bass. Pretty awesome pair for any fans of more colorful audio than the dry analytical sounds of more accurate ones. Would recommend a subwoofer though.

    This review is from Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

    Posted by RCHS

  • Rated 5 out of 5 stars

    R-51 M

    I purchased these R-51 M speakers as a rear channel for my home theater system. They are replacing my Bose Acoustimass 10 system. With only these connected and using the Klipsch RP-404C Center Channel, the sound is phenomenal. It's like I bought an entirely new system. There is a very noticeable sound quality difference. I'm running them through the Onkyo TX-NR656 amplifier. Also purchased at Best Buy. At this moment my sub and front speakers have not arrived. I purchased these through Best Buy's "open Box" program at a deep discount. They look and sound new. Keeping in mind I would have removed them from the box anyway to connect them. Best Buys loss is my gain, Thanks Best Buy. There is one drawback . Best Buy does not offer any reasonably priced speaker stand to match these speakers. Nor does Klipsch. I can live with that. I'm fairly handy so I will just make a custom set. This is necessary for my application. As stated these are my rear channel speakers. The connection is very simple. No degree needed. If you can screw a tire valve cap on, you can connect these with out difficulty. They weigh eleven pounds each. So rather than chance many of the stands offered and having my speakers crash to the floor I feel this to be my best option. Would I recommend these speakers? By all means. This is a reasonably priced, high quality addition most would be proud to have in their system. One final thought. Don't pass by those "open box" offers. You get good first quality at a reduced price when available.

    This review is from Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

    Posted by Pompeyo

  • Rated 5 out of 5 stars

    Great Bookshelf Speakers for Rear Channel

    I needed some speakers to use for rears that would somewhat match tonally with my Klipsch RP-150m fronts and RP-500C center. I was on a budget and got these for half price Black Friday. Timbre matching is not as critical for the rear speakers but these seem to be voiced similarly to the Reference Premiere line. Even when I listen to my SACDs in 5.1, the music pans from front to rear, the speakers blend in perfectly. Only complaint is on stock photos, there appears to be a keyhole on the back to hang the speakers on the wall. There is no keyhole on the back of the speakers so you have to come up with your own mounting method if you need to hang them. The magnetic grille covers are a nice touch that's rare in the price range. I appreciate the full size tweeter horn vs the smaller ones used on the previous R-15M, it really improved the tweeter dispersion. Really great speakers for the price that sound bigger than they are.

    This review is from Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

    Posted by ChrisO

  • Rated 5 out of 5 stars

    Great value, a tad directional

    I got these half off during the Black Friday promotion. At half price they are an exceptional value. I personally bought two pair to use as side and rear surround speakers, in conjunction with higher grade Klipsch Reference Premier RP-250F front and RP-450C center speakers. They fill this role well, with very similar sound completing the sound stage for gaming and movies. I've also seen these demo'd in a store playing rock and roll tracks in a 2.1 configuration as primary front speakers along with a subwoofer. I was shocked at how much volume they put out into the large open space and sounded great paired with a sub. My only reservation is I will say Klipsch seem pretty directional. If I walk from my open concept living room into my kitchen, there is a change in the character of the sound once you aren't 'in the zone'. Your experience may vary depending on your room characteristics. The attached picture shows how their similar dimensions and design compares to the RP-250F.

    This review is from Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

    Posted by Robert

  • Rated 5 out of 5 stars

    Perfect in every way!!

    Great speakers. I have these set up to use as primary’s for my Fluance RT-85 turntable. I went to my local goodwill and found and older Onkyo receiver for $15 that had phono output and hooked these up to it. Played the ol Elton John H. Chateau album and WOW I impressed with these speakers. They take what you throw at them clear, crisp and effortlessly. Crank up the volume?,sure why not. They don’t t blink an eye. Needless to say these are a definite buy if you’re in the market for really nice passive bookshelf speakers.

    This review is from Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black

    Posted by smcd32

From the manufacturer

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Pros for Klipsch - Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair) - Black
There were no pros for this productSound Quality, Size, Bass, Price, AppearanceSound Quality, SizeSound Quality, Size, Connectivity, Setup Ease, Volume

Specs

Questions & Answers
  • Does anyone know if putting the mounting feet on the SIDE of the speaker & laying it down sideways would affect the sound quality? I would prefer to stack them on the top of my wall unit, but I can only do that if they are laying on their sides. Thanks!

    Orienting the R-51M on it's side will not affect the sound quality or acoustic properties, as this speaker features a 90X90 degree Tractrix horn.

    Answered by Klipsch Product Expert
    Klipsch Product Expert response
  • The weight listed seems high for one speaker - can you confirm the weight of an individual speaker (not the pair) - I would like to mount these on floating shelves which have a limited weight capacity.

    9 pounds 15 ounces for one individual speaker. Just checked it with my digital fish scale.

    Answered by Hal27
  • have Pioneer SCLX904 its RMS is rated at 140w per channel,(not sure on total w per ch) confused at matching new speakers with the receivers RMS and total power. these are 85rms and 340w peak. do you stay at or below the receivers rms for speakers ?

    Hello Preorder: A receiver's RMS rating is supposed to be set against a "standard" and is an indicator of how much "clean" power a receiver can deliver to speakers at a certain resistance (OHM rating, 8 Ohms for example), and with the proper gage wiring and distance, etc..... You typically hit the "peak" power draw on the lower BASS response. So the lower tones generated by your music source and the higher the volume, the more power it takes to drive your speakers. To be clear, the 140W RMS receiver and the 85W RMS speakers need to be compared at the same resistance, so for example if these are both rated at 8 ohms, then what this means is you would be fine to use these speakers at volumes near 70% of what the rated output is for your receiver. So don't turn it up all the way, or you may run the chance of damaging these speakers. You should NOT turn it up all the way in any case because when you do, the receiver begins to deliver more "noise" distortion in the signal and that can potentially damage ANY speaker. Keep it at a decent volume under 70% and you should be able to enjoy these together just fine.

    Answered by Tigerphan2007
  • Can I wall mount this speakers?

    The answer is yes and no. They have a rear port on them so you can’t flush mount them; it would cause the speakers to sound terrible. You can however use a swivel mount to mount these. I’ll attach a link and picture so you can see how they work. These do not come with keyholes on them anymore . Link below https://www.amazon.com/Mount-Universal-Clamping-Bookshelf-Mounting/dp/B01MZE0O8U/ref=mp_s_a_1_1_sspa?keywords=klipsch+speaker+mount&qid=1573572562&sprefix=klipsch+speaker+&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExMFY1NjRMV1NHNlA1JmVuY3J5cHRlZElkPUEwOTE5ODExTThYU1BMUzc5SEFIJmVuY3J5cHRlZEFkSWQ9QTA4Nzc2ODlOR1ZRWUdSS0xKTzEmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ== Hope this helps!

    Answered by Kalen
  • I just ordered a pair of these R-51M speakers for my TV sound setup, bit I stil need to order a power amplifier. Given the output power level and impedance, what would you recommend for a good quality amplifier yet reasonably priced. Thank you.

    Much depends on your budget and what you are willing to spend on an a/v receiver/amplifier. There are quite a few good AV receiver brands today. Review the offerings from Yamaha, Denon, Sony, and Marantz. I prefer a Marantz A/V Receivers although they are expensive. You get what you pay for. With the current ongoing sales, you can find good multi channel A/V receivers for less than $300. Yamaha and Sony come to mind for budget priced amps. If you go to inexpensive you may find yourself upgrading very soon. 50 years of experience with many thousands of dollars spent.

    Answered by LeeS
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