This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST
Classic Polk Full Range Floorstanding Loudspeakers
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The heart of one of the world's most awesome sound systems
The SDA-SRS Loudspeaker is the main component in a Polk Audio Signature Reference System. Build a towering, multi-channel loudspeaker system by combining a timbre-matched set of SDA Series speakers with your SDA-SRS front mains: use SDA1 or SDA2 as your rear surround floorstanding loudspeakers, and an SDA-CRS as your center channel speaker. The result is a lifesize sound system capable of producing incredible audio power, at truly lifelike volume levels, with superior accuracy and realistic imaging of even the most complex audio information. The original SDA-SRS premiered at the 1985 CES show.
What Makes a Legend Most: The Paradigm Shift of SDA Technology
You're familiar with "stereo," the basic two-channel left-and-right channel separation of audio information. What you probably don't know is that reproducing "stereo" from a pair of loudspeakers is less accurate than it seems. In fact, it can be downright inaccurate. This is the problem that Matthew Polk and the engineers at Polk Audio set out to remedy in the mid-80s, just as the audio industry was transitioning from "boutique" brands, popular with a handful of hobbyists, to more mainstream popularity. It was a time of great innovation, and Polk Audio, already an established innovator, was on the forefront.
The problem with "stereo" was that it didn't really work. You sat in front of a pair of speakers, and your left ear heard stuff and your right ear heard stuff, and both ears heard information from both channels, left-and-right; each ear hearing information from both channels. It's called "interaural crosstalk." Interaural crosstalk occurs when left-channel (left speaker) information is heard by the right ear, and right-channel (right speaker) information is heard by the left ear. You can't avoid it, that's just the nature of sound. But it results in a completely unrealistic and inaccurate reproduction of sound, reducing the soundstage to a narrow "sweet spot," with muddy "stereo separation," and unrealistic "imaging."
To more accurately reproduce sound as it was originally created live, with lifelike imaging and separation, Matthew Polk realized the vital importance of maintaining the integrity of the channel separation. To do it, he had to defeat interaural crosstalk. So Polk Audio engineers designed a complex passive-circuitry crossover network for a new set of multi-driver loudspeakers. It would use patented algorithms and innovative sound-phasing to effortlessly cancel interaural crosstalk between the stereo pair. They called it Stereo Dimensional Array Technology, and it produced "True Stereo," a completely new kind of sound, where the left channel information is delivered to your left ear, while the right channel information is delivered to your right ear, and never the twain shall meet. Each ear hears what it is meant to hear, with full stereo separation, as if the performance you are listening to is live.
SDA Technology changed the sound of home audio loudspeakers. It delivered a dramatic, dynamic, broad, accurate, lifelike soundstage with pinpoint imaging and realistic reproduction. And Polk Audio's flagship SRS Series loudspeakers were built to deliver it at the most extreme, lifelike volume levels. Home audio would never be the same.
Today's Polk Audio Benefits from Yesterday's Innovations
That was then, this is now. We've never stopped innovating. The changing nature of entertainment media (vinyl to CD to digital download) demands changes in reproduction technology. So we've miniaturized, digitized, redesigned, reformulated and re-engineered many of our original, patented groundbreaking technologies to better serve your entertainment needs and desires today. Many of our loudspeaker models still use variations on the original SDA Technology, along with other classic patented audio innovations like Dynamic Balance material tuning and innovative driver array designs, so you can still experience the classic warm, realistic, lifelike Polk Audio sound. Hear the difference a history of audio innovation makes. You'll understand why we're still "The Speaker Specialists."
3rd Generation SDA Series, circa 1985-1987
Features the SL2000 Tweeter
"Mind-boggling... Astounding... Flabbergasting! The best SDAs yet." - High Fidelity Magazine
"Among the crop of new and innovative speaker systems [at CES], probably the most impressive was the Polk SDA SRS, which shook the walls of the Americana Congress Hotel." - Stereo Review Magazine
"Literally, a new dimension in sound." - Stereo Review Magazine
"They truly represent a breakthrough." - Rolling Stone Magazine
"Breathtaking... a new world of hi-fi listening." - Stereo Buyer's Guide
"True Stereo" with SDA Technology
One of the original breakthrought technologies patented by Polk Audio, SDA Technology allows a pair of loudspeakers to deliver an overwhelmingly wide, realistic soundstage with no interaural crosstalk, revealing the full impact of true stereo separation with pinpoint imaging accuracy. You will find this incredible, paradigm-changing technology in today's Polk Audio products, too.
Line Source Array Technology
The Line Source Array minimizes the damaging effects of unwanted sound reflections by controlling the vertical dispersion midrange frequencies. It's an exclusive Polk Audio engineering design, and eliminates blurred imaging and tonal coloration caused by floor and ceiling reflections of these important midrange frequencies. Line Source Array Technology "opens" the soundstage, reduces the effects of undesired room interactions, and achieves a more realistically-placed audio image, with a wider range of optimum listening positions in any room.
Progressive Point Source Technology
As performance frequencies increase during sound reproduction, the SRS Tweeter array actually adjusts its radiation area, becoming an ideal point source at the very highest of frequencies, eliminating high frequency interactions and reflections between the multiple drivers. Progressive Point Source Technology maintains a Constant Vertical Directivity of the mid and high frequencies, which prevents undesirable "beaming," and delivers astonishingly realistic "you are there" imaging.
Internally Braced Enclosures
The enclosure is an integral part of the design of the SRS Speaker Series. At a time when speakers were becoming more and more popular, many companies opted for the economy of cheap, flimsy materials. Polk Audio knew that the build-quality of the enclosure is just as important to the sound quality of the speaker as the material used to construct the driver cones. SRS Series speakers were constructed of heavy-duty MDF, and internally braced for additional stability and efficiency even at lifelike volume levels. Check the specs: these speakers weighed as much as a 6-year-old child. Reinforced baffles and a unique Low Diffraction Grille design virtually eliminated performance-robbing resonances, for less coloration, more efficient operation, and the most realistic sound reproduction possible. Today, Polk Audio loudspeakers continue this tradition of heavy-duty enclosure construction, producing the same excellent and efficient sound.
Dynamic Balance Material Design Technology
Dynamic Balance is Polk Audio's patented micro-analysis of a speaker's entire electro-acoustic and mechanical system. It was developed to help us select better materials and more efficient geometry when building the SRS Series to meet our extraordinary performance standards. Dynamic Balance analysis allowed us to pinpoint and eliminate performance-robbing resonances right on the actual driver material, long before they might become a part of the finished product. We were able to tune out offending sounds before you hear them! The performance of the Trilaminate Polymer driver material used in the SRS Series far outstripped the more traditional vacuum-formed plastic cones of the time. Using the Dynamic Balance process, the Trilaminate Polymer material was tuned to produce flat, uncolored frequency response. This true transparency revealed a wider dynamic range, with sharper details, and no hint of strain. Every driver and tweeter Polk Audio designs and manufactures today is tuned with the exclusive Dynamic Balance process.
Trilaminate Polymer Mid-Bass Drivers
For the kind of realism and deep bass response that you can actually feel, each SRS model features an array of Polk's exclusive Trilaminate Polymer Midbass Drivers. Designed and engineered in a proprietary process using three complementary materials, SRS Drivers deliver performance far beyond the reaches of conventional speaker drivers. The first laminate material was chosen for its structural strength combined with its light weight. The second laminate is extremely stiff with an unusually high speed of sonic wave transmission. The third laminate boasts a uniquely effective damping property that removes sonic coloration. Combined, these materials contribute to a driver that's light and fast, with low distortion and superior transient response and detail, even at truly astounding volume levels. Supported by a rigid motor structure, with high temperature aluminum voice coils to assure reliability even with extended playing at maximum output, and durable Butyl Rubber Surrounds allowing for more accurate cone movement, many of these drivers have survived since the SRS Series was first introduced and still play perfectly. This kind of material perfection can be found in every current Polk Audio model as well.
Critically Tuned Planar Bass Radiators
The SRS Series Mid-Bass Drivers are acoustically coupled to the speaker's Critically Tuned Planar Bass Radiator. A pair of SRS speakers with 15" Bass Radiators has a low frequency driver system of over 178 square inches. This is deep bass that is both emotional and physical, and has been described as thunderous. And yet this is a system designed from the start to be clean and tight, with virtually no distortion. The SRS Series has been found to yield less distortion at 25Hz than many audiophile quality tube amplifiers. SRS Series speakers included "Bass Brace" hardware to anchor your speakers to your floor, for the ultimate in efficient, exhilarating deep bass reproduction. We have gone on to use this extraordinary Bass Radiator technology in the development of our current line of loudspeakers and Powered Subwoofers, proving our company-wide dedication to the deepest, most thrilling, realistically musical bass response possible.
SL 2000 Silver Coil Dome Tweeter
Polk Audio engineers worked with the Johns Hopkins University Center for Non-Destructive Testing, utilized Laser Interferometry Technology, to test a vast number of tweeter designs and materials in their search for high frequency perfection. (Dynamic Balance Tuning Technology was a direct outgrowth of this fundamental audio research.) They developed a revolutionary dome design that would produce near-perfect motion without the sonic degradation of standing waves. Cooled by Ultra Low Viscosity (ULV) Magnetic Fluid, the SL2000 delivers astounding details and pinpoint imaging, without no fatigue, even at constantly tremendous volume levels. The accurate performance of every dome tweeter Polk Audio has designed and engineered since the SRS Series has benefitted from this fundamental research.
High Efficiency Amplifier Compatibility
The SRS Series was designed and engineered to be driven well by practically any electronics available at the time, even the most modestly-powered amplifer or receiver. They present an "easy load." We recommend that a high quality amplifier or receiver of at least 50 watts per channel be used for the best performance. (If you're using separate mono amplifiers without a common ground, Polk's AI-1 interface is available separately to ensure a proper connection.) You don't need an expensive high powered audiophile rig to enjoy the warm, clear, realism of the SRS Series.
For even greater dynamic range and lower distortion, the SRS loudspeakers may be connected for Bi-Amplification using the two sets of inputs provided on each loudspeaker. No electronic crossover is necessary. When you use two different amplifiers to reproduce the high and low frequencies separately, SRS loudspeakers achieve their greatest sonic potential.
"Bass-Brace" & Floor Spike Floor-Coupling Hardware Included
To enhance the full impact and dimension of Polk's low frequency performance, SRS Series speakers may be physically coupled to your listening room wall or floor with their specially designed "Bass Brace" hardware or Spiked Feet in place.
|Type||Silver Coil polyamide dome tweeters|
|Diameter||6 1/2" (16.51cm)|
|Maximum SPL||125 dB|
|Total Frequency Response||10Hz to 26kHz|
|Nominal Impedance||4 ohms|
|Recommended Amplifier Power||10 to 1000 watts per channel|
|Height||63 1/2" (161.29cm)|
|Product Weight (each)||182 pounds|
|Unit of Measure||each|
|Included Accessories||SDA interconnect cable|
|Speaker Warranty||5 years parts and labor (original purchaser)|
Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.
27 reviews with an average of 5Write your own review
by Dan Graff, January 30, 20057 out of 7 people found this review helpful.
Outstanding sound and styling.
My wife thinks they're too large, but I think they're just right!
I bought my SDA-SRS2's new in 1987 and have never regretted the purchase. I've had friends ask why I don't have a sub in my system, but they only have to hear the outstanding bass to see that there is no need to add any additional bass speakers. I've got a pair of Monitor 4 Series 2 speakers for the rears in my surround system and I am very happy with the quality of the sound produced by my Polks. Most of my friends have satellites with subwoofers, yet they are impressed with sound produced with my "old" speakers.
by rickey price, April 30, 20084 out of 6 people found this review helpful.
Crystal clear sound at both low and high volumes. Deep deep bass!!!
Not a speaker you would want to move around often because of the weight.
I purchased my SDA-SRS in 1989 and fell in love with them from day one. Had to replace a few tweeters, (no fault of the speakers), here and there but I didn't mind because the sound from these babies are incredible. The deep tight bass and the natural mids along with the brillant highs make them the greatest sounding speaker I have ever owned.
by Turbo, November 14, 20032 out of 2 people found this review helpful.
FEEL THE MOVIE. OVER 130 db
Need a stronger house.
They are without a doubt the best sounding speakers of all time for the price range. I own 3 pair of sda-srs and there all in my home theater room,one in each cornner and one above and below the front projector screen.Powered by 6 carver mono block amps
by David John Feathers, April 16, 20031 out of 1 people found this review helpful.
Bass. Dynamic range. Spatial sense. Be prepared. These speakers can physically attack you.
I've moved three times since I got mine in '86. Fortunately, I own my house now and won't have to rent a crane to move them again.
Outstanding. Still. Wish my ears had held up as well as my Polk's. S/N 2423(left), 1458(right). Many companies make speaker systems with small satellites and subwoofers that do a decent job of filling the room, but nothing approaches the SRS's, the only time I've heard better sound was a live Pink Floyd concert.
by Brad Donovan, November 15, 20031 out of 1 people found this review helpful.
Zero listener fatigue, Huge sound stage, Devastating bass, Crystal clear highs
They are no longer available for purchase
I purchased these speakers new in 1988 for the sum of $2700. That was nearly my entire life savings at the ripe age of 25. Here i am 15 years later and still awed by their sound quality which makes me realize that the $2700 was very well spent. These speakers produce a huge soundstage and reveal all nuances in your music/movies. You'll never grow tired listening to these speakers. I've read on the message boards here that these speakers don't produce bass. I say they need to look at what they are using to drive these with since according to polk the surface area of all the drivers is equal to a 40" driver, that's heavy duty bass. These speakers are so revealing that it leads you to believe that there is something wrong with the speakers, maybe that's where the lack of bass mind set comes from. Wrong, they are simply revealing any weak link in the chain you are using to drive them. I currently use a Sunfire Theater Grand II and a pair of Carver M1.0t bridged mono for 1000w RMS/Ch and I have no problems shaking the house silly. These speakers were so far ahead of their time that they are awesome as your front mains in your home theater setup thus eliminating the need for a subwoofer. I could ramble on more but will leave you with this, If you ever get a chance to buy a pair of these vintage classics do not hesitate just do it.
by Sid Agnew, December 27, 20020 out of 0 people found this review helpful.
Not only an excellent sounding speaker, but after 15 years they still rival all my friends new systems. I like explaining what the interconnect cable is for... Now for the upgrade to a new Polk LSi System !(I have to get out of the old fathers speakers section)
Matthew Polk's SDA-2 Mid 80's vintage front floor standing speakers. I rate these speakers as 6 stars 15 years ago and today. The imaging is excellent and longevity is now legendary. Thanks for the many years of listening pleasure Mr. Polk!
by Reginald Boyd, March 1, 20030 out of 0 people found this review helpful.
one word outstanding! My SDA 1`s still going strong after more than 15yrs of use.
by ERIC BACHMANN, March 15, 20030 out of 0 people found this review helpful.
EXCELLENT 3 DIMENTIONAL IMAGING. SMOOTH. EXCELLENT BASS. GREAT POWER HANDLING.
After 14 years of fine listening to my SDA-1C's I still use them as a reference to others. I've never had a problem with them. They still put a smile on my face when I listen to them. In one word. AWESOME. Even after 14 years.
by Doug Hilleary, April 2, 20030 out of 0 people found this review helpful.
Close your eyes and your at the concert.
For 15 years now I have never grown tired enough to trade my SDA 2's in for new skinny models. Love to try on a new pair of polks but listening to the SDA's are so satisfying it may be a while longer.
by Brian Marasca, July 4, 20030 out of 0 people found this review helpful.
Close your eyes, and you're not listening to speakers at all. You're just there. That's what I call "transparent!"
I bought my SDA-1s in 1986. To this day, nothing I've ever heard has come close to the awesome stereo imaging and dramatically realistic bass response of these speakers - and I regularly listen to new speakers. Mine don't show any signs of age at all, even after 17 years of constant use. If Polk ever makes Stereo Dimensional Array speakers again, I might buy new ones. Otherwise, my kids will inherit these.
by Mike Gibbons, October 30, 20030 out of 0 people found this review helpful.
Full range speakers.. with dynamic impact, open, clear soundstage.
If you don't like heavy and large these are not for you.
Just purchased these speakers used, and have wanted them for about 15 years. Wired them up bi-amped last night and in a word, I was amazed. Great openess, fast response, with impact. I put 380 watts into each of these speakers, and they never strained, or gave any indication that they couldn't take more. They also sounded great at normal listening levels.
by martin maughan, November 16, 20030 out of 0 people found this review helpful.
full sound spectrum like you were in the sound stage,just undescribeable for words.
no longer produced-
a sound depth that has not been experienced since,they were blown back in the 80's.my father still has them sitting in original packaging in his spare room.the day they get repaired will be my day to move back home to enjoy the greatly apriciated polk sound and true imaging,with todays technology in sound.
by James Davy, May 21, 20040 out of 0 people found this review helpful.
Highest build quality. True sound. A pleasure to listen to.
I bought a pair after a visit to the Stereo Store in San Fransicos, where I had the pleasure of having them demonstrated by Matthew Polk himself. They are some of the best speakers I have ever owned. If you close your eyes and listen to a good cd or SACD recording you will either think the performer is in your living room or you are in the center of the orchestra. Simply awsome. I will not willingly part with them.
by Harry Housley, August 11, 20040 out of 0 people found this review helpful.
Powerful dynamic bass, crystal-clear high-end, and overall imaging that I haven't heard produced by any other speaker since 1986.
Minor - the glue holding the grillcloth on the speaker covers is losing it's hold. I just don't remove the covers as much (to show off the insides!!!)
I purchased my pair of SDA-SRS in 1986, while still living in a tiny apartment. They amazed me back then, and still do today! These awesome speakers have basically become a part of my family over the years as they have flawlessly played back thousands of LP's and CD's. The soundstage is pin-point sharp, and the dynamic range, well, it's downright scary at times! I consider these my "babies" (My wife will agree on this) and I can't imagine ever letting go of them. Excellent craftsmanship throughout, incredible sound, house-shaking bass, and still an unbelievable value (if they were available today.)
by Jim Leonard, October 6, 20040 out of 0 people found this review helpful.
Great soundstage, good bass and highs
After all this time, weaknesses in the case construction are apparent. Deep bass causes some annoying vibration.
I bought the SDA-2As in 1988 when my kids were young. Now they're in college and I'm still looking for a speaker that sounds better, haven't found it. Drive them with a B&K ST1400 Amp and Pro10 Preamp. Wish I could have afforded the SRS back then.
by Steve Ryan, January 4, 20050 out of 0 people found this review helpful.
Excellent sound. Drivers have not perished or deteriorated with age. Solidly built.
Very heavy. Glue holding fabric grill is beginning to fail along bottom. Wood panel at the bottom of one speaker has split slightly.
I've had a pair of SDA-SRS2's since 1988. I really love the sound from these speakers. As a friend stated when I bought them, it's a speaker to last a lifetime. I've auditioned them to many people and all have been very impressed with the fidelity and the clarity of the sound. The bass response from these speakers is amazing, and I found nothing from other, more popular at the time speaker systems compared in reproduction. Absolutely no regrets in buying these speakers. Shame they are no longer made !
by Walter Baumy, January 30, 20050 out of 0 people found this review helpful.
Awsome sound, very plesant to listen to. Absoutely no ear fatigue or harshness to them. Monsters when it comes down to power handling abality.
Heavy, thankfully these are not part of my PA system. Glue is starting to seperate on the side covering. Wood is faded a bit.
Awsome speakers, I bought my pair of SDA-2's used and I really don't think I will ever get rid of them. I have been impressed with them from day one and still get a feeling of excitement when I power up my system. The all around clarity of the sounds and the pleasent non-harsh shound these speakers emmulate can be breathtaking at times and amazing at the least.
by William Birosh, February 24, 20050 out of 0 people found this review helpful.
A huge sound stage with termendous depth and transparency. When the volumn is kranked up the sound gets only louder while the transparency stays the same. Every tone is totaly seperate and in its proper place. From the deepest bass to the highest tone everything is in its proper spatial place in the sound stage. With good clean power, the SDA SRS are coupled with a Luxman M05 Pure class A Twin mono Amplifier Output 105w RMS. I rarlly see more then 60watts while the the neighbours complain and I dont hear anthing more in the house. With ONE real watt of clean power these speakers produce a almost concert level sound with a depth and clarity almost unequelled in the HI-FI scene today. Even though they are over 15 years old I still astound all my friends with their sonic presence. Keep up the good work.
At very high sound levels the tweeters over heat and steig out. At menschely volumn levels no problem..
Outstanding quality and sound vision for its price.
by Tom McGuinness, March 15, 20050 out of 0 people found this review helpful.
Just the best I have ever heard.
Large for todays standards, wife hates em.
Picture it...1984....a 24 y/o going in to buy the RTA-12C's. Typical bait and switch by the salesman, but they knocked my socks off back then, and they still do today. Neighborhood loves when I crank the music (really!) 21 years later and a move to the country, these speakers are still jamming. The tweeter problem that one has mentioned was an easy fix by a friend, they no longer fade out at high volume. They still look and sound brand new after 3 moves and like everyone else says here...it's like being in a live concert. I have Bose AM 16's in my theater room and they just pale in comparison, even with 3 subwoofers and a larger amp.
by Mike Bialek, September 2, 20050 out of 0 people found this review helpful.
Deep rich bass with seamless mids and highs. Huge soundstage and wonderful imaging.
Big if room is a problem. Had a shut down problem if driven hard for a continuous period of time. Had an old friend who tweeked them a bit and no problems since. Buy them if you can find them...just be careful of the shipping costs!
I bought my 1.2's brand new when they first came out. I'm just as amazed today as I was over 20 years ago. I've bought and sold many speakers through the years, as well as many moves, but I could never let go of these. The imaging and sound these things create still cannot be duplicated. If anyone is interested in having one of the best sound experiences ever, listen to Grover Washington's "Take me there" and melt away. The soundstage wraps around you as his sax both warms and cools your blood. I have mine at about 15 feet listening distance, 8 feet apart (toed in slightly)I drive them by an Adcom GFA-585 and preamp with a Theta D/A converter and Acoustic Alchemy transport. There is nothing better!
by Jeff Delabre, September 7, 20050 out of 0 people found this review helpful.
Super smooth, invisable 3-D open sound with totally natural sound. Outstanding!!!!!!!!!
The cloth sides and grill get very dusty. Thats the only drawback.
I purchased a pair of SDA-1C's in 1990 as demos at United Audio for $999.00 a pair. I almost bought Infinity Kappa's. I am so happy even 15 years later. I don't know what I will do if they burn or get stollen. I wish Polk Audio would come out with new LARGE SDA'S. Who cares what women think about their large size. They always say "SIZE MATTERS" I Agree when in comes to speakers.Women need to tighten up!
by David Early, October 27, 20050 out of 0 people found this review helpful.
Amazing high,low and mid-range imaging and clarity. Easily the best speaker under two or three thousand dollars.
Size is large but needed for proper dispersion of the sound.
I heard the SDA2 demonstrated at a audio club at Robinson Barracks (Stuttgart Germany) on my first overseas assignment in 1986. I was broke but when they went on clearance for $700.00 dollars I had to buy them. One of the few good decisions I ever made! The mistake I initially made on these was to use a carver receiver- It still sounding good but when I put the Yamaha MX1 amp and cx1 pre-amp on them around 1995- WOW! the bass blew me away and the sound was awsome- I could not believe the difference a great pre-amp and amp made. I bought a pair of B&W Matrix speakers when the Frankfurt Audio Club was closing in 1996. I was amazed how easily the SDA2 performed against the B&W. While I believe how a personson enjoys their sounds is quite subjective to individual likes, the SDA I will take to the grave. I got rid of the weak B&W's. I keep replacement parts to maintain the speaker as needed.
by John tyler Birch, January 30, 20060 out of 0 people found this review helpful.
just simply a work of art, you can feel the air in the room move around you. blistering highs thundering lows clear mids awesome
cant think of ne to be honest
i grew up with these speakers, im only 23 years old but from my experience i havent heard a speaker that sounds better than these. works of art. state of the art back in there day and still blowing away the competition. my father had a nakamichi pa 7 power amp suppling the juice for these monsters. they allowed me to truely appreciate music as a kid growing up. i love you POLK AUDIO
by DAVID ANSELL, March 7, 20090 out of 0 people found this review helpful.
clear sound both high & low
only thing I with sda II they have to in the same spot .
I purchased my sdaII when they were new.I purchased them from bay-bloor raido back in 1980's cost of with taxs 3,000.00> I still have them just last couple of years I got 7.1 surround. so I got some more polks. I pick them up on sale.just last nov I got the RT/10.for 300.00. I put the sda II and RT 10 side by side the sda II been 20 years old walk all over the RT 10 couldn't belive it.the other polks i have are CSI3/ FXI3/ PSW 12. now i"m one with polk.
by Cornell Young, November 3, 20090 out of 0 people found this review helpful.
Huge frequency response with tight but smooth bass and clean highs that don't pierce your ears at high volumes.
Just the size for this day and age but if you want the power of a Corvette then you can't get it in a Prius
I remember at 18 years old going to Soundscape in Baltimore and hearing Winelight by Grover Washington on a Yamaha and Polk setup and was knocked off of my feet!! I went back for almost 4 years time after to time to get my fix until one day my wife then surprised me with the SDA 2's as gift back in the fall of 1987 and to this day I still have them and haven't heard anything that could turn my head!! I have thought about smaller more modern speakers but when I look at them and listen to them I start to tear up LOL, it would be like giving away my daughter at her wedding and having old vintage car or motorcycle. A good test for these for me has always been Whitney Houston's song "Just The Lonely Talking Again". Her vocal strength is enough to distort most speakers at high volumes so give it a try. I see me having these bad boys until they won't play anymore!!
by ROBERT LONG, October 21, 20100 out of 0 people found this review helpful.
NOTHING I CAN SAY BAD ABOUT THEM
MR POLK OUGHT TO BRING THEM BACK AS I KNOW SOME PEOPLE WHO WOULD BUY AN UPDATED VERSION ?
I HAVE OWNED THESE FOR OVER 25 YEARS SDA SRS AND I STILL MAKE MY FRIENDS JEALOUS EVERYTIME THEY HEAR THEM. OUTSTANDING AND MUSICAL.
by Steve Koplo, July 12, 20120 out of 0 people found this review helpful.
Sound imaging, Dynamic Range, clarity, clean power and equal sound distribution at all volume levels. I have never heard a better sounding speaker even after 27 years of ownership.
These speakers have no weaknesses! Some say they're hard to move because they are so big and heavy, but that's a weakness of the mover, not the speaker! They do need to be driven by a clean, no-additives amp for best reproduction.
I first bought Polk SRS-2 Speakers in 1984 but really wanted the SRS-SDA's. I just couldn't afford them. But a year later the store I got them offered me 100% credit on a trade-up and I took them up on it. So, I've had the SRS-SDA's for 27 years now, and they are my prize possessions! I WILL NEVER PART WITH THEM! The speakers still sound exactly the same as the day I bought them, even through 5 moves (and very careful handling). I play the with flat equalization - no added bass or treble - as they reproduce perfect sound. I drive them with a Hafler 500 Watt amp, and currently use them in my home entertainment center with TV, BluRay DVD, VCR and Media Center Computer. I have never heard a speaker that came close in dynamic range, clarity, and simply recreating the original sound without adding flavors to it or inhibiting parts of the sound spectrum between 50 and 20,000 Hz. The spatial imaging is magical! Close your eyes and you'd swear you're in a concert hall - these speakers simply create a huge space. I am about to add a Polk 6200 kit I bought used (PSW250 Sub, RM1600 Center and four RM1300 surrounds) to my system with the SDA-SRS fronts, and I'll see if and how they work together. But if they don't then I'll just stick to the SRS-SDA's. The sound can maybe be added to for surround sound movies, but simply cannot be topped. I owe years of joyful listening to Mathew Polk, and I thank him for his creativity and production of an such an incredible product! If anyone finds a pair of these in a used shop or sale, do not hesitate to pick them up. I paid $2600 for the pair in 1985, but I cannot actually put a value on the pleasure they have given me - simply priceless!
This product is considered a "Recent" or "Vintage" Polk Audio model. It is not a part of our current product lineup. It may still be available in some stores as a "close out" or "used" product. Information provided here about this product may not reflect current realities and does not imply availability. If you happen to have a question or concern about this product, contact our Customer Service Department at 1-800-377-7655 M-F 9am - 5:30pm EST. Chances are we remember it.
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