Winter SaleEnds 1/19. Limited quantities. No rainchecks.Shop now

Main Content
product image

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

Model: 1065839 R-51-M
SKU: 6241808
This item is no longer available in new condition. See similar items below
  • Key Specs
    • Speaker Type: Bookshelf
    • RMS Power: 85 watts (The maximum amount of continuous power the device is able to handle.)
  • General
    • Brand: Klipsch
    • Model Number: 1065839 R-51-M
    • Product Name: Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair)
    • Color: Black
  • Audio
    • Speaker Type: Bookshelf
    • Enclosure Type: Bass reflex
    • RMS Power: 85 watts (The maximum amount of continuous power the device is able to handle.)
    • Peak Power Handling: 340 watts (The maximum amount of power an electronic device, like a speaker, can handle without damage. This refers to short bursts of power, while root mean square (RMS) power handling indicates the amount of continuous power a device can sustain. Higher levels of distortion can also occur at peak power levels when the device is powered beyond its recommended usage.)
    • Impedance: 8 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Minimum Frequency Response: 62 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 21 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Sensitivity: 93 decibels
    • Number of Speakers: 2
    • Number of Tweeters: 1
    • Tweeter Size: 1 inches
    • Number of Drivers: 2
    • Number of  Woofers: 1
    • Woofer Size: 5.25 inches
  • Connectivity
    • Wireless Multi-Room Audio: false (Technology that allows multiple speakers and/or soundbars to be connected wirelessly and play audio in separate rooms.)
  • Features
    • App Compatible: false (The product can be connected to a program or software application on a mobile device, which then receives collected data from the product.)
    • Indoor Or Outdoor Use: Indoor (Indicates the appropriate environment product was designed to be used in.)
  • Dimensions
    • Product Height: 13.3 inches (The out of box height of the item. Height is measured as the vertical distance from the bottom of the item to the top as it would be primarily used or placed.)
    • Product Width: 7 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth: 8.5 inches (The out of box depth of the item. Depth is measured as the distance from the front of the item to the back as it would be primarily used or placed.)
    • Product Weight: 11 pounds (The out of box weight of the item.)
  • Material
    • Tweeter Material: Aluminum
  • Included
    • Cable(s) Included: None
  • Other
    • UPC: 743878035520

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.

Speaker Buying Guide

  • 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.
Whats Included
  • Klipsch Reference Series 5-1/4" 340-Watt Passive 2-Way Bookshelf Speakers (Pair)

Q: Can I use this as my rear speakers? My front speakers are Klipsch R26

A: These are working great as both surround and rear speakers in my system

Q: Does blocking the back port by using the keyhole to mount the speaker flat against a wall affect the sound quality?

A: There actually is no keyhole on the back. For some reason, Best Buy decided to put pictures of different speakers in for the imaging of the R-51.

Q: How is the bass responds on these speakers and is there any harshness to the top end.

A: Don’t have the bass of a larger speaker but very good bass for their size. No harshness on top end if broadcast quality is good. Kind of a silky smooth sounding highs.

Q: 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 ?

A: 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.

Q: Can I wall mount this speakers?

A: 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!

Q: 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.

A: 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.

Q: Can these speakers sit directly next to a LG 4k TV on a mantle without affecting the picture?

A: Yes. The magnets in speakers could affect the stream of ions creating the picture on the old cathode Ray tube type TVs ( those heavy glass ones) but won't affect flat screen TV at all