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Klipsch

Klipsch Reference Series RB-81 II Bookshelf Speaker (Black)

  • Based on 294 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Nov 13
Order within 16 hours and 6 minutes
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Color: Black


Features

  • Includes single speaker
  • Dynamic 1" titanium Linear Travel Suspension horn-loaded tweeter, 8" high-output Cerametallic woofer
  • Highly efficient design produces more output using less energy
  • Top Of The Line Klipsch Book Shelf Speaker.
  • Fills larger rooms with lifelike music and movie performances
  • Accurate, non-fatiguing sound - Priced and Packaged Each.

Description

A towering achievement in a bookshelf design, the Reference Series RB-81 II is a force to be reckoned with. It provides unrivaled music and movie performances to those who demand the very best, but don’t have the room to accommodate a floorstanding speaker.

Brand: Klipsch


Speaker Maximum Output Power: 600 Watts


Frequency Response: 44 Hz


Connectivity Technology: Wired


Audio Output Mode: Stereo, Surround Sound


Input Voltage: 2.83 Volts


Mounting Type: Shelf Mount


Material: Cerametallic


Model Name: RB-81 II


Speaker Type: Woofer,Bookshelf, Tweeter


Special Feature: cable


Recommended Uses For Product: Music


Compatible Devices: Smartphone, Tablet, MP3 Player, Desktop, Television, Projector, Laptop


Subwoofer Diameter: 8 Inches


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 1.0


Color: Black


Included Components: Bookshelf Speaker


Product Dimensions: 12.3"D x 9.25"W x 19"H


Item Weight: 12.5 Kilograms


Impedance: 8 Ohm


Is Waterproof: FALSE


Warranty Type: Limited Warranty


Number of Items: 1


Control Method: Touch


Wireless Communication Technology: Bluetooth


Speaker Size: 8 Inches


Power Source: DC power supply


Signal-to-Noise Ratio: 70 dB


Woofer Diameter: 15.5 Centimeters


Tweeter Diameter: 1 Inches


Vehicle Service Type: Car


Water Resistance Level: Waterproof


Customer Package Type: Standard Packaging


Audio Driver Type: Dynamic Driver


Audio Driver Size: 8 Inches


Subwoofer Connectivity Technology: Wireless


Includes MP3 player?: No


Number Of Circuits: 2


Series Number: 81


Specific Uses For Product: Music


UPC: 743878021820


Style: Modern


Indoor/Outdoor Usage: Indoor


Manufacturer: Klipsch


Shape: rectangular prism


Item Weight: 27.5 pounds


Item model number: 1011850


Is Discontinued By Manufacturer: No


Date First Available: August 28, 2010


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Don't wait too long...
Color: Black
I have wanted these speakers since getting my first pair of KB-15's, an earlier model made for Best Buy (5.25" LF/1" Al dome driven horn HF) and bargain priced at $130/pr shipped. I was amazed at their sound and sensitivity (efficiency). I A-B-ed them with mythen previous favorites - a pair of NHT SuperOne 2.1's bought new 12/14. Their great sensitivity over the NHT's almost sealed their fate - the small Klipsch speakers were moved to my hobby room, where they have been seriously enjoyed. My NHT's remained in my office, an 11' x 12' room where they are driven by an Onkyo 50 Wpc stereo receiver (TX-8020) and CDP (C-7030). I was pleased with the controlled bass and decent treble of the NHT's - but the midrange appeared lacking - I thought that the RB-81ii, with it's 8" LF driver and 1" Ti horn HF driver might be the answer. They seemed to have evaporated last winter. I checked Amazon for Prime stock of the speakers aperiodically - including a few weeks back, when I found them for $249/ea - a great price for the top of the line bookshelf speaker in their 'Reference' line - so I ordered a pair. I felt guilty - and cancelled the order the next day. Last Saturday, I checked - they were still available - I ordered another pair. I was determined to get them this time and they arrived Tuesday - in a word wow! They are large and heavy, which I was prepared for, having moved the bookcase's next shelf up allowing 22" vertical clearance. They are fed by #14 stranded zip cord, with the HF/LF jumpers in place. The front firing port allows placement of the 12.5" deep speaker in a 12" deep shelf, canted inward.. The coverage is wide - my ears are centered two feet in front of the plane the speakers are in and equidistant from the speakers (~5 ft). The stereo effect is consistent almost to the back wall (8 ft) and covers a cone three feet wide at my seated central position to six ft wide in front of the back wall. The LF is there, while the HF are great - and the MF is now present! It also takes a lot less to drive these speakers - my half-power HD < .03% can be appreciated (<.08% @ 50 WPC). I may have found my ideal speakers! If you think you might like them - don't wait too long - order your's. Oh, if they get any better after break-in... I'll be shocked. Besides being bi-wire capable, they have a nice grill cover that is held in place by magnets. The instruction manual is multilingual and pretty sparse. They come individually well-packed, too. My s/n's were ~100 apart... they looked identical - perfect - and 'factory fresh' - quite decent quality. ... show more
Reviewed in the United States on November 12, 2015 by J. R. Tow
    • GREAT BOOKSHELF SPEAKERS !!!!!!!!
Color: Black
THESE 2 WAY SPEAKERS ARE NOTHING BUT OUSTANDING. THESE Klipsch RB-81 REFERANCE SPEAKERS ARE ON THE DISCOUTINUED LIST, BUILT LIKE A TANK, & THE SOUND IS SO CLEAR EVAN AT THIS PRICE POINT. THE SOUND STANGE IS EXPANSIVE WHEN YOU DRIVE THEM A LITTLE / LIKE A RACE HORSE. THE HIGHS ARE CLEAR & CRISP WHILE THE BASS IS TIGHT WITHOUT BOOMING OR EXHIBITING ANY FLABY DISTORTION. ( EXAMPLE ) GET A PHIL COLLINS CD & PLAY IN THE AIR TONIGHT & YOU WILL FEEL LIKE YOU ARE AT A LIVE CONCERT. TRUE, THE MIDS ARE A LITTLE THIN BUT WHAT DO EXPECT FROM A 2 WAY DESIGN. THESE SPEAKERS ARE IN MY BASEMENT BY THE BAR & EASILY FILL THE ENTIRE ROOM. UPSTAIRS FOR CRITICAL LISTENING I HAVE A SET OF 4 WAY, TOWER, STUDIO MONITOR SPEAKERS WITH A COST OF OVER $ 24,000.00 VERSUS THE Klipsch RB-81 BOOKSHELF SPEAKERS DOWNSTAIRS AT A COST OF LESS THAN $ 400.00 IT'S A NO BRAINER. THESE RB * 81 SPEAKERS ARE THE REAL DEAL SO YOU BETTER GRAB THEM WHILE YOU CAN BEFORE THEY ARE GONE. ... show more
Reviewed in the United States on April 9, 2020 by BANKERTMP
    • I will look at IQ Home Entertainment first for my next sound investment.
Color: Black
I am very happy with IQ HOME ENTERTAINMENT, I purchased these as damaged box, but like new, when I received the box was hardly damaged and the speakers were in perfect condition. They play and sound great!
Reviewed in the United States on September 15, 2025 by Phil Enders
    • Nice speakers but warning, they’re bright!!
Color: Black
Great speakers for home theatre use but for music I would look elsewhere. They look great, are huge and can easily fill a large room with sound. The have a broad range but for real bass you’ll need a sub. Overall the functionality for these is great!
Reviewed in the United States on February 10, 2025 by Andrew
    • Best bookshelf speakers ever.
Color: Black
Been 6 yrs now, these speakers come the closest to Klipsch Heritage as any mfgr can get. Mine are mated with Cornwall IIs and are a perfect match filling in sounds from the other side of the room. All you need at that point is a sub and a 110 watt receiver and BOOM! No matter what you play, magic. RB81s don't punch the bass out, but when adjusted with a good eq, will punch without distortion. Klipsch is still the best speaker made, sounds fantastic and I'm sold. ... show more
Reviewed in the United States on September 22, 2023 by SCOTT. S
    • Fat bass. Clean. and maybe a little too crisp.
Color: Black
These are great speakers, but... Don't get me wrong, I'm a huge Klipsch fan. There's just something about these speakers that could be a bit better. What is it? Well... My experience, is that they are almost too precise. There's a kind of edginess in the high end, like the designers wanted to make sure that every little metallic element of the music came through. The highs are certainly present, but there's a "granular" quality to them that I don't experience with paper speakers. It's almost like they're too clean and crisp. The lows are low and full, but a little loose, I imagine that is because they're ported and I'm using them in a relatively small room (12x14 bedroom) with parallel walls (not the best). What I like, is the headroom when it comes to volume. These guys can take some input and stay clean. I think they'd be great in larger rooms, where the sound can travel and "mature" a bit. Close up, they're just a little harsh and lack the organic smoothness of paper cones. That being said, this is Klipsch design and it's beautiful. I'm glad I bought these but I still miss my Tannoy PBM8s that I stupidly sold for $100. What was I thinking! ... show more
Reviewed in the United States on April 7, 2018 by LA DIY
    • Bookshelf size - theater performance.
Color: Black
Possibly biased because I like Klipsch speakers. All I can say is that the quality of the enclosure is matched by unexpected performance rivaling far larger speaker systems. Clarity of highs, authoritative bass, and very competitive price to performance. These are currently being used as studio monitors instead of powered speakers, but have the power to fill a large room (24x30) with full, rich sound. ... show more
Reviewed in the United States on June 27, 2024 by KD

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