Emerald PhysicsEP3.7Emerald Physics EP3.7 Superb OB Speakers-Undervalued at $50k!SALE-Save $2500.00 for limited time. Normally $5995 and now $3,495.00. Nothing even close for this price Single amp design Sale price to make way for the new $6,...3495.00

Emerald Physics EP3.7 Superb OB Speakers-Undervalued at $50k! [Expired]

no longer for sale

SALE-Save $2500.00 for limited time. Normally $5995 and now $3,495.00.

          Nothing even close for this price

                       Single amp design

Sale price to make way for the new $6,495.00 EP3.8. The EP3.7 can also be upgraded in the future to the EP3.8 right in your home for only $800.00.

Ask us about 6 MONTHS NO INTEREST or PAYMENTS thru PayPal

See our new video tour at:


In the last video they listen to the CS3 MK2 (EP3) system and are amazed.

We now have consumer demos for qualified potential customers in:

Louisville, KY 40245

Wildomar, CA 45


Lynchburg, VA 24503

White Plains, NY 10605

Alabaster, AL 35007

Los Angeles, CA 90046

Los Angeles, CA 90013

Newport Beach, CA

River Vale, NJ This is near Saddle River; about 1.5 hours from the Princeton area, and about 2 -2.5 hours from Philadelphia

The EP3.7 is an smaller version of our top of the line model EP4.7 (one 15" woofer) and EP2.7 (two-15" woofers) designed to work with a subwoofer, one amp and go only 2 feet or more from the rear wall.  Its baby brother, the EP3, got the Best Affordable sound at the Axpona Show from The Absolute Sound. The EP3.7 comes with our state of the art Polyester tweeter, $600.00 Special Edition crossover and $1200.00 Tricoat finish. It offers better speed, transparency and low level resolution over the EP3 as well as the beautiful upgraded finish.

One cable manufacturer who has the speakers with two Sumiko S9 subs sent me an email that said:
Goose bump city,
  Walter,  I've been a music lover/ audiophile for 30 years and a manufacturer for 14. The performance synergy I have right now Is astonishing. The 3.7's have helped make it all possible! 

Best, David Elrod. (Elrod cables)

See the new part time audiophile EP3 show report at. They said:
"The latest iteration, with its flashy automotive paint finish, is a step up and to the side from the previous design, but they’re still rather distinctive. The speakers are also DSP controlled, and while that gets you in the ballpark of acoustically optimal more often than not, is still looked askance by many. But the perception of downsides are all just that. Perceptions. The proof of the pudding is in the eating. And this is a tasty little dish. On the whole, this room was quite convincing. Walter was offering the entire system (minus the PS Audio DAC) at just under $6,000 as a show-special, trying to demonstrate how great sound doesn’t have to cost more than a BMW. I’d say he nailed it. The sound here was very dynamic, open and expressive.

The fact that this was one of the busiest rooms at the show says that I’m not alone in thinking this."

Read the report at:

Our new Show place in Broomfield, Colorado is now available for auditions. Multiple Emerald Physics systems are set up. Call for an appointment.

Latest user feedback,
"I simply have never heard any speaker quite like the EP. I can’t yet explain it. A cross between the MBLs and Quads BUT NOT. Amazing!!!!"

At the last Rocky Mountain Audio Fest in October 2013 Audio Shark.org came by and Mike, who owns the site, posted thsi about the EP3: "If these speakers sold for $50,000 they would be undervalued. At $3500.00 they are stupid"
See his show report at: http://audioshark.org/rmaf-136/rmaf-2013-pictures-2747-page18.html#.UmX24xApc1I

In The Absolute Sound show report they said:
There were two Emerald Physics rooms I wandered into here at RMAF, and both were exceptional. The first was the smaller of the two systems, featuring the latest iteration of the “entry-level” model, the EP3  (formally called CS3 Mark II) ($3,795/pair)
. The lineup features a coaxial-driver with a 12” woofer; it can be and was driven by a single amp, and here paired with a digital crossover, a DSPeaker Anti-Mode 2.0 bass correction system and a pair of REL subwoofers. Throw in a Jolida Fusion DAC/Transport, and Walter was selling the bundle for a hair under $9,000. That is, everything you’d need (except cables), in one ready-to-go package. The cool thing? Ha ha – as if you needed more – you could put those speakers just about anywhere and expect (and get!) top-to-bottom performance that not only rivaled but exceeded that found in systems in the Tower that were 5x the cost. If this is the future, we’re all gonna need shades. It was a convincing demo."
See the report at: http://www.theabsolutesound.com/articles/rmaf-2013-loudspeakers-under-20k/

See the RMAF 2013 Show report and video from Part Time Audiophile at:

3) Part Time Audiophile: "Anyway, Walter was showing off a complete audiophile system — soup to nuts — that sells for $8,995. That’s everything (except cables). And let me forestall any questions about how the sound “at this price” is some sort of compromise or trade-off by saying that this was a very convincing case for not breaking the bank on your next new system. No, $9k isn’t chump change and quite frankly it’s wearying to have to repeat that bit over and over, but out of respect, I will: it’s not nothing. But let me re-state and re-emphasize what I’ve already said — this $9k system will redefine what you thought was possible, regardless of the money you spend."

4) The Audio Beat gave us Best of Show and said: "What made this system stand out, other than its price and the fact that attendees could easily purchase it, was its powerful, refined sound. Dynamics and authority were on full view, along with a meaty midrange that brought voices to life -- all at a reasonable price."

Complete biamped systems with subwoofers available from as little as $5,995.00 with Preamp, amp and room correction.

Compare this system to any at $20k and be amazed.

The Emerald Physics EP3.7. The EP3.7 represents the next generation in our dipole technology with its point source design and room control. The new model does not have a single part used in the original and sounds considerably better. Cosmetics are also far superior.
The EP3.7 employs our new Emerald Physics EP12.1 custom 12” woofer/midrange and top of the line Polyester tweeter with our $600.00 Special Edition external passive crossover. The Emerald Physics DSP2.4 digital electronic crossover/EQ provides DSP controlled crossover and equalization for the system.
Our controlled dispersion design eliminates most listening room anomalies, allowing the EP3  to sound great in virtually all rooms. The EP3.7 will work from one amp in small to medium sized rooms. When used with a powered subwoofer you can have a fully bi-amplified system and can fill almost any sized room with superb dynamics and bass into the 20Hz range. Our beautiful new cosmetic is a major upgrade. An automotive Tri-coat finish is standard.  The photo is of the beautiful red Tricoat gloss finish.


Single Amp drive - Does not require bi-amplification.
• New Emerald Physics EP12.1 midrange/tweeter point source driver
• Custom Emerald Physics Polyester hi resolution tweeter.
• World Class sonic performance in a compact package.
• Incredible imaging and soundstage reproduction. Some say the best at any price.
• World Class Bass speed and articulation.
• Works well in small rooms as close as 2ft from the rear wall and up to 1 foot from the side wall.
• Can be used with moderate stereo amps & integrated amps w/preamp out & main in.
• $600.00 Special Edition Outboard midrange/tweeter hi pass crossover included.
• Includes $850.00 DSP 2.4 crossover/EQ which has subwoofer crossover for bass extension & adds the ability to play extremely loud in large rooms.

EP3.7 Specifications:
System Type: Passive 2-way Dynamic Dipole - DSP crossover & equalized
Frequency Range: 45Hz–22kHz -3dB to target curve without subwoofer
Frequency Linearity: +/- 1dB from 100Hz-20kHz to target curve
Impedance: 8 Ohms nominal
Max Power input: 150W RMS, 300W program
Sensitivity: 95dB 1.83V 1M 1kHz- 97Db when biamped with subwoofer.
Emerald Physics High Frequency: 1 inch Polyester compression driver
Emerald Physics Low Frequency: 12 inch paper cone with 2.5” voice coil
Crossover: 3rd order acoustic Butterworth filter at 900Hz
Digital Frequency crossover/Equalizer: – Emerald Physics DSP2.4
Finishes: Hi gloss automotive Tri-coat standard. Rosewood and Cocobolo wood finishes available at additional charge.
Dimensions: 41”H x 22"W x 2.5”D baffle, Base is 15” depth total
Weight: Net: 68lbs, Shipping each: 92lbs
Retail price from $5995/ pair in Hand painted Automotive Tricoat finish with DSP2.4 EQ/Crossover

The last customer email was quite typical and said:
"Walter, I don’t know how to thank you for this speaker. Every night is a new listening experience. I’ve been at this hobby for 40 years, can still hear, have gone through speaker after speaker, cable after cable, CD player after CD player, amp after amp, trying without success to get this sound. I’ve had ET LFT VIIIs, Gallos, Harbeths, Merlins (VSM and TSM), Spendor's, Von Schwiekert's, Magnapan's, and at least a dozen others through my listening room. The EPs give a rightness to the midrange that just lets you suspend your disbelief...lets you climb on stage and be there. As it does this, it forgives what little things my system could be better about. I read Stereophile now, with its 55k D’Agostino mono amps, and I don’t wonder what they sound like. I don’t care. I’ve managed to quit wondering. I have my last pair of speakers, and I can say, all of this was worth waiting for. If anyone told me in 1980 that CD could sound like master tape, I’d just shake my head. But now, with these speakers, its vinyl. Front to back layering. Perfect attack. Perfect decay. Perfect tone." "I have about 4k in my front end, and about 1.6k in my subs. Not enough to break a sweat in today’s market. My room is heavily treated to stop slap echo. Could I spend more? Yes, I could spend easily ten times what I’ve paid (now that there’s no college tuition due!). But I refuse to do so. Because this is a hobby, and the fun is finding the good stuff and making it sing. I truly think Stereophile and TAS have forgotten us." "Well, onwards to music. Thanks again for buying this speaker line and making it work. People are still putting accelerometers on boxes and saying gee, very little distortion! I’m sitting with these things saying...there’s NO distortion - why would I think of owning other speakers? This is the holy grail. End of the line. Don’t need to know what comes next, because I’m good. Real good. Haven’t looked at my watch once. Well, except to see that I’m late to get to sleep!" Thank you!!!!! Regards, John

Buy with confidence from AudiogoN’s #1 rated dealer by feedback. Read our over 12,400 points of feedback.

The EP3.7 ships by truck. Call for freight quote before purchase.

We accept PayPal, Visa, Discover, MasterCard and money orders.
Call me at 770-667-5633 to discuss these superb speakers.
Standard finish at $5,995.00 is in black, white, blue or Anthracite hi gloss tri-coat finish.
Optional gorgeous Ancient Cocobolo and Rosewood available for additional cost.
GA & HI residents add sales tax.
Brands carried:
Acoustic Zen, April Music, Audio Space tube electronics, Audeze headphones, Auralic music streamers & DAC's, Bob Carver tube amps and loudspeakers, Burson Audio, Cambridge, Creek, DSPeaker room correction, Emerald Physics speakers, amplifiers & DAC’s, Epos, Exogal DAC's and amplifiers, Focal headphones, Gallo speakers, Graham Slee, HifiMan headphones, Jolida tube electronics, LSA Speakers, Lehmann phono stages,  Marantz Reference, Micromega, Music Hall, Muso by Naim, Ortofon cartridges, Peachtree Audio, Project turntables, PS Audio, Quad, Scansonic speakers, Silverline Audio speakers, Sumiko subwoofers & cartridges, TriangleArt turntables, Wireworld, Wywires

Sales policies on the Underwood Hifi Inc. website at www.underwoodhifi.com
Seller Information

Underwood Hifi, Inc.  Verified Dealer

Last 12 months

Member since July 2000