syzygySLF870newsyzygy SLF870 New 1200 watt wireless 12" subwoofersAsk us about 6 MONTHS NO PAYMENTS or INTEREST thru PayPal Underwood is happy to be selling the Syzygy line of wireless subwoofers. This ad is for the SLF-870 but we carry all 3 acoust...999.00

syzygy SLF870 New 1200 watt wireless 12" subwoofers

Listing ID: lis9bc85 Classified 
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Time Left: 7 Days


Asking Price: $999.00

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Ships fromMarietta, GA, 30067
Ships toUnited States
Package dimensions20.0" × 20.0" × 20.0" (45.0 lbs.)
Shipping carrierFedEx
Shipping cost
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Original accessoriesBox, Manual
Agon miniAverage Research Pricing

        Ask us about 6 MONTHS NO PAYMENTS or INTEREST thru PayPal

  Underwood is happy to be selling the Syzygy line of wireless subwoofers. 

This ad is for the SLF-870 but we carry all 3 acoustic suspension models from $599-$999.

                       Call for Specials

               Call to discuss all models


When three celestial bodies are perfectly aligned, it’s called syzygy. When
advanced technology, high performance audio and a passion for great
sound align, we call it syzygy too – Syzygy Acoustics.

                       Rooms are the real problem

subwoofers pair seamlessly with any high-fidelity or
home theater audio
system to deliver clean and powerful low-frequency sound. Thanks to
Syzygy's proprietary wireless technology, you can link multiple
subwoofers to the same transmitter, allowing you to fill your space with
deep and detailed bass, regardless of room size
unique SoundSculpt technology measures your room and defeats room
resonances to allow a seemless match to your main speakers without the
typical one note bass appearing of most rooms. All controlled from your
listening chair right from your phone on the Syzygy app.


Controlled from your phone

unique SoundSculpt Technology, each Syzygy subwoofer essentially makes a
3-D sonic map of its space, and then adjusts its output to smooth out
the aural peaks and valleys. It sends out a series of tones that measure
the shape and size of your room, the position of the furniture, and how
your decor absorbs and reflects sound. This rich acoustical data is
captured by your smartphone and sent back to the subwoofer where it is
corrected then perfected, ensuring that the sub-bass from the Syzygy
subwoofer blends seamlessly with your speakers and the low-frequency
sound arrives at your ears at the correct time. All with a tap of an


                       Multiple subs are the way to go                                       

acoustic experts will tell you that multiple subs are the way to go. Two
subs or a swarm of 4 will couple better to all rooms and help to even
out room modes and  allow for lower distortion along with greater
dynamics. Instead of making larger  models Syzygy recommends using two to
4 subs in your room and this can be  done at very reasonable prices. We
very much agree. Two 870 subs are the same  price as a $2000.00 REL or JL
and typically outperform them.

2018 Golden Ear Award winner from the Absolute Sound


SLF-870 is a 12 inch acoustic suspension design with a 1200 watt amp
true 20Hz performance. It can be run both front firing or down
firing. In addition to
wireless operation it offers line level input.
Performance is superb with vary fast
transient response and the ability
to keep up with fast mains like planar speakers.

At only $999.00 the SLF870 is a great value and at under $2k two will rock even very large rooms. Four in a swarm is amazing!

The Absolute Sound said:
those techy features are pointless if the subs don’t sound good, and
fortunately, they weren’t just good—they were superb. I was able to
achieve a seamless transition, so the subs sounded like a continuous
extension of my main speakers. I worried that the wireless connection
might cause dropouts, and while I carefully monitored the sound to
detect any possible problems, I never heard a single one. That’s how
technology should work. Style-wise, they may be rather plain, but who really looks at subwoofers?
Very highly recommended and a great value for the price."

Read the entire review at:

Please note that you need a smart phone (Apple or Android) to set the subs up.

Specs: Driver Size: 12" proprietary woven-cellulose-fiber diaphragm 
Type: Acoustic Suspension
Amplifier Power: 1,200 Watts
Frequency Response: 20-200 Hz
Room Output: 106 dB
Dimensions: 15" cube
Weight (net): 39.8 lbs
Wireless: Yes
Analog RCA In (LFE): Yes
Auto Standby: Yes Warranty: 3 years parts & labor

Read our 13,200 points of AudiogoN #1 rated feedback and then call 770-667-5633 with questions or to purchase any of the Syzygy subwoofers.

We accept PayPal, AMEX, Visa, Discover and MasterCard as well as money orders.
GA & HI residents add sales tax

Brands carried:
Zen, AGN GAN amplifiers, Audio Space tube electronics, Audeze headphones,
Audio Alchemy, Auralic Music Streamers & DAC's, Bob Carver tube amplifiers and loudspeakers, Burson Audio, Core Power Technologies A/V, Creek, DSPeaker room correction, EAT
turntables, ELAC Speakers, Emerald Physics loudspeakers, amplifiers
& DSP crossovers, Epos, Focal headphones, Gallo speakers, Graham
Slee, HifiMan headphones, Iso-Acoustics, Jolida tube electronics, LSA
speakers, Lehmann phono stages, Marantz Reference, Melco servers, Micromega, MOFI
Turntables, MrSpeakers headphones, Musical Fidelity, Music Hall tables, Ortofon cartridges, Outlaw Audio, Peachtree Audio,
Project turntables, PS Audio, Pure Audio DAC's, Quad speakers, headphones & electronics, Rethm speakers, Scansonic loudspeakers, Silverline
Audio speakers, Spread Spectrum Ampzilla amps & preamps, Sumiko cartridges, Sweet Vinyl pop & click filters, Syzygy wireless subwoofers,
Wireworld & Wywires cables

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