LFR660 Omnidirectional Speakers

LFR660 Omnidirectional Speakers

Omnidirectional sound in a smaller footprint, the LFR660 brings spacious sound to any room.

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Based on the stellar accolades of the LFR1100 omnidirectional speakers from both our customers and professional reviewers we have developed an entire line of LFR products, beginning with the LFR660 and LFR 660 HP (High Powered).  The High Powered version has very heavy duty 6.5” woofers for added maximum SPL output and no compression in the bass region.  The LFR series is the brainchild of Andrew Welker and Ian Colquhoun. This omnidirectional wonder solves the problem of typical bipole or dipole speakers: they typically provide incredible depth of soundstage, but images tend to be ill-defined and washed-out.

LFR660s in Cherry with a Chestnut Stain.
Axiom's DSP
Axiom's DSPAxiom's DSP1, included with the LFR660s.

By using a sophisticated DSP to tailor the response of each complement of drivers, front and rear, Axiom was able to overcome this bipole/dipole limitation to create the first omnidirectional speaker that preserves the spacious sound enthusiasts love, but with the same neutral tonal balance and pinpoint imaging for which Axiom speakers are renowned. The result? 2-D imaging is suddenly brought into a 3-D soundstage, immersing the listener and enveloping your senses.

Traditionally, bipole/dipole designs have been plagued by a persistent problem: the spacious presentation sounds great for a while, but eventually it becomes off-putting because you can't isolate soloists or pinpoint actions. Axiom met this challenge by innovating a way to apply psychoacoustic principals to create speakers that offer the best of both forward radiating and bipole designs.  Extensive customization of the frequency response of the rear drivers, working in conjunction with a more subtle customization of the front drivers, creates a seamless soundstage with minimal roll-off at the top end, even at extreme angles away from the sweet spot. You'll still marvel at the sense of the speakers' soundfield opening up before you, but the image detail doesn't shift at all.

"The LFR1100 is absolutely crystalline in its output and the level of detail is just mind blowing. I cannot believe I am saying this, but it is literally like having the artist in the room with you. I know what you are thinking and I have heard that expression a million times as well only to be let down when I put it to the test, but in the case of the LFR1100 and my listening sessions it was true for me. The idea of having a true full-range speaker capable of delivering on its promise was foreign to me, until now."
-- Dale Rasco, HomeTheaterShack, on the LFR1100 Omnidirectional Speakers
"I always look for speakers that melt the walls away and transport me to the concert hall; or into the world of the movie I'm watching. The LFR-1100s did this in a way I didn't think was possible; especially for a speaker pair that costs less (way less!) than $25,000."
-- Chris Eberle, Secrets of Home Theater and High Fidelity, on the LFR1100 Omnidirectional Speakers

The LFR660 front baffle features two 6.5-inch woofers, a 5.25-inch midrange/woofer, and a 1-inch tweeter, with our signature vortex port in the bottom. The rear baffle adds two more vortex ports, another 5.25-inch midrange/woofer, and another 1-inch tweeter. It requires four channels of amplification to drive these speakers: right front, left front, right rear, and left rear all need to be powered separately. 

The DSP included with the LFR660s separates the front right and left channels into these four channels.  The DSP included is in a stand-alone case that sits between your preamplifier or receiver and the amplifier.  The DSP accepts the main right and left channels from the preamplifier through RCA connects or from your receiver through High Level speaker connections and outputs right front, right rear, left front, and left rear channels for your amplifier. 

By selecting More Finishes and Options above, you have the ability to choose optional upgraded and integrated versions of the DSP.  There is another stand-alone version of the DSP that does not have High Level inputs but instead has both RCA and Balanced (XLR) inputs and outputs.  There are also two versions of an integrated DSP and amplifier.  Both versions include our ADA1000-4 amplifier with the DSP built into it.  One version accepts either a pre-out or high level (speaker wire) out from your pre-amp or receiver.  The other version has an integrated preamplifier that will accept up to 3 independent line-level sources (iPod, CD player, etc) and has an input selector switch and a volume control on the front panel. 

If you would like to have your speakers painted to match your walls we can do it. The upcharge is $150 for your entire order for this option.
Call us at 1-888-352-9466 to get all the details

Questions We Get All the Time

Why a Digital Signal Processor (DSP) for the LFR660?

In order to get optimal integration between the front and rear drivers each set of drivers needs to have a very unique set of amplitude response curves. This isn't possible to do with a passive network, so we employ the power of a DSP to ensure we end up with the desired family of curves measured all the way around the speaker. This ensures complete control over the midrange fidelity of the omnidirectional speaker, and keeps it from suffering from a lack of image focus or spectral neutrality which is so often a problem with omnidirectional designs. The DSP tailors phase response between the front and back sections, as well as the amplitude response characteristics.


All Axiom LFR Speakers Feature:

  • Titanium Tweeters

  • Aluminum Woofers and Midrange/Woofers

  • Anti-Standing-Wave cabinets that suppress internal resonances which color sound

  • Vortex-ported cabinets to reduce port noise

  • Custom programmed DSP for full control over the Family of Curves

  • 5-way gold-plated binding posts

Enclosure Triple Vortex / Reflex
Max RMS Amp Wattage 250 Watts
Max Dynamic Amp Wattage 1000 Watts
Min Amp Power 10 Watts
Freq Resp +/-3dB (Hz) 45 - 20k
Freq Resp +3dB- 10dB (Hz) 33 - 20k
Impedance (Ohms) 6 Ohms
SPL in Room1w/1m(db) 91 dB
SPL Anechoic 1w/1m(db) 87 dB
X-Over 500 Hz & 2 kHz
Tweeter 2 x 1"
Midrange 2 x 5.25"
Woofer Dual 6.5"
Dimensions H W D (inches) 37.5" x 9.25" x 15"
Dimensions H W D (mm) 953 x 235 x 381
Weight (lbs) each 53
Weight (kg) each 24
     - DSP Specs -
DSP - Max Output 2Vrms
DSP - Gain Unity
DSP - THD <0.008% @ 1Vrms
DSP - Signal to Noise Ratio (Input shorted, 22Hz-20kHz, un-weighted, Ref. 2V) 102dB
DSP - Digital Conversion 24-bit, Sigma-Delta ADCs and DACs @ 96kHz Sampling Rate
DSP - Power Consumption 13W
DSP - RCA Input (Single Ended) Yes
DSP - High Level Input Yes
DSP - AC Input Voltage 115 or 230
DSP - Dimens. H W D (inches) 3.5
DSP - Dimens. H W D (mm) 88 x 450 x 425
DSP - Weight (lbs) each 27
DSP - Weight (kg) each 12
Frequency Graph Frequency Graph
Enclosure Triple Vortex / Reflex
Max RMS Amp Wattage 300 Watts
Max Dynamic Amp Wattage 1200 Watts
Min Amp Power 10 Watts
Freq Resp +/-3dB (Hz) 36 - 20k
Freq Resp +3dB- 10dB (Hz) 30 - 20k
Impedance (Ohms) 6 Ohms
SPL in Room1w/1m(db) 91 dB
SPL Anechoic 1w/1m(db) 87 dB
X-Over 500 Hz & 2 kHz
Tweeter 2 x 1"
Midrange 2 x 5.25"
Woofer Dual 6.5" HP
Dimensions H W D (inches) 37.5" x 9.25" x 15"
Dimensions H W D (mm) 953 x 235 x 381
Weight (lbs) each 58
Weight (kg) each 26


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Customer Reviews
I have been an obsessive music fan and musician my whole life, and yet until recently I never felt like I needed to move up to audiophile status. Something snapped inside me when I realized I was finally starting to experience some very mild hearing loss. Knowing I might not have my great ears forever, I decided it was time to experience the best of the best while I still can.

I listen to and enjoy all genres of music, having owned or consumed many thousands of records, cassette tapes, CDs, mp3s, streaming services, and records again. But I have a really special place reserved in my heart for metal. Traditional, thrash, extreme, black, death, and so on. I just love it. It isn’t the only thing I listen to by any stretch of the imagination, but it is the genre I find the most pure joy in listening to.

I wanted speakers that would crunch, scream, squeal, thump, and just plain rock. Speakers that would capture haunting acoustic passages, driving double kick drums, and twin Mesa Boogie Triple Rectifiers. Turns out Axiom had me covered.

I strongly debated the LFR1100s, but ultimately decided that, given a room size of about 2000 cubic meters, there was such a thing as visual and auditory overkill. I was already dropping a bundle on high-end preamp and turntable purchases, as well as dual subs (more on this in a sec). Better to grab omnis that would do the job and not dominate the look of the room.

To finally cut to the chase: these speakers sound incredible. I went high-powered, paired with the 1000 watt DSP combo for convenience and reduction in number of components. I truly can’t imagine needing more watts or bigger speakers, because when cranked these babies sing. They are marvelously clean, exposing the glory of my music across an enormous dynamic range and sound stage. And yes, the metal is epic heavy yumminess.

Placement is CRITICAL. This has been covered by Axiom and other reviewers alike, but it bears a repeat. When I first set them up I was mildly underwhelmed, to the point of feeling like my system was missing something. Over subsequent days I experimented with proper separation and space until...WOW. Listening to music has become a head-shaking, jaw-dropping, insane-giggle-inspiring event. Seriously, I laugh out loud at how ridiculously awesome my records sound.

I mentioned the addition of dual subs. Truth told, I could have gone without. I ordered them that first day feeling like something was missing, before I had really gotten the room placement dialed. Go big or go home though, right? Once the audiophile bug bites it’s hard to ignore the subsequent itch. Sorry not sorry neighbors.

Axiom has made something truly special here. If you are a music fan, you will not go wrong. If you love jazz or rock or classical or electronic or technical death metal (I have cranked them all), you will not go wrong. If you are wondering if a 660 will meet your needs in a master bedroom sized space, you will absolutely not go wrong.
- Mike H.
Much has been said about the speakers’ ability to create an accurate soundstage, and to give the impression of the speaker’s neutrality and ‘just plain disappearing’. What most amazes me is the fact the the tonal balance doesn’t change significantly when you turn the sound to a very low level. Even the bass is still present! When I turn it up there doesn’t seem to be a spot -that most speakers have- where the sound suddenly comes alive. It just fills the room more! The sound never gets aggressive or edgy or boomy. In the evening I just love the realism of the sound at low volume levels.

I have the integrated pre-amp/amp/dsp that came with the unit, and I rarely turn the volume control up past the 10 o’clock position, as I live in a wood and plaster apartment building and the sound-proofing is not good. The speakers seem to be ideally suited to a large room like mine. I suspect they would be awesome in a bigger listening room.

By the way, I am a regular symphony concert goer and choral singer, and have ears that are very sensitive to any sort of harmonic distortion, something present in a surprising number of concert venues. I listen mainly to vocal, jazz and classical.
- Tom F, BC
The LFR660s are terrific, a thousand good things will be said about them. Triangles, combs, and such have showed up like magic in my songs. In one of them, I heard a chair creaking when the musician was getting out of it at the end of the recording session. How cool is that? And the vocals, they are as life-like as one can get. These speakers with the ADA1000 amp are the real deal.

You all may be interested in why I purchased the 660s when I was already enjoying my M60s. Serious consideration evolved as I thought of my previous Axiom upgrades, each one made my music sound better. Looking at the price of the 660s, I figured Axiom would not price and sell them like this unless they were a major improvement and was I ever right.

Hey Ian and Andrew, you two have created some very special LFR speakers, the 660s are magical. Talk about spaciousness and airiness, I can't get over the sound. Every time I turn on my music, I shake my head in disbelief that they sound so good. Sorry to say that the 660s with the dsp amp combo will be my last major purchase from Axiom. Oh, guess I forgot, I just traded in my m60s in for an ADA1000-5. Oh well!
- Steve H., PA

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  • LFR660 Omnidirectional Speakers

  • Price:

    Base Price: $3,480.00