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The Speedwoofer 10S

$399.00 with free shipping

The Speedwoofer 10S

Read Customer Reviews (81)

Black & White Speedwoofers are back in stock!

This 10" super-sub dominates its 12" rivals. With its Compression Guide technology, 10" cast-frame high-excursion woofer, and 350 watts RMS of available power, the new Speedwoofer 10S plays deeper and with more output than other top subs in its class. Unrivaled performance, beautiful styling, and built-in wireless capability, put this sub in a league all by itself.

Click here for the sub with wireless transmitter (total package $449).

$399.00

Successfully Added To Cart

View Cart

The Speedwoofer 10S

Read Customer Reviews (81)

Black & White Speedwoofers are back in stock!

This 10" super-sub dominates its 12" rivals. With its Compression Guide technology, 10" cast-frame high-excursion woofer, and 350 watts RMS of available power, the new Speedwoofer 10S plays deeper and with more output than other top subs in its class. Unrivaled performance, beautiful styling, and built-in wireless capability, put this sub in a league all by itself.

Click here for the sub with wireless transmitter (total package $449).

$399.00

THE 10″ SUB WITH 12″ BASS

Compression Guide Technology

Faster transient response, deeper bass extension
 

Compression Guide Technology

Faster transient response, deeper bass extension

Beautiful high-excursion cast frame 10”woofer

Extreme power handling, superior bass output
 

Beautiful high-excursion cast frame 10”woofer

Extreme power handling, superior bass output

350 watt RMS class D amp with wireless capability

Best-in-class power vs. 200, 250, 300W competitors
 

350 watt RMS class D amp with wireless capability

Best-in-class power vs. 200, 250, 300W competitors

Wireless transmitter (optional)

Allows wireless pairing up to 35ft.
 

Wireless transmitter (optional)

Allows wireless pairing up to 35ft.

LISTEN TO THE SOUND OF LIMITS BEING SHATTERED

Included: 1 Speedwoofer 10S

You should be wondering, “how can a 10 inch sub outperform a 12?” Well, let us explain.

Bass has to do with so much more than just woofer size. Sure woofer size is a factor, but so is cabinet volume, woofer excursion, and power. The fact is, bass is created by moving air. The more air you move, the more bass you get.

What the Speedwoofer 10S lacks in surface area, it more than makes up for with volume and excursion. This combination allows the Speedwoofer 10S to move more air and reach lower frequencies than top-rated 12″ competitors; but with the improved speed and transient response of a 10. Its the best of both worlds.

Of course, power plays a big role in overall performance as well. That’s why we gave the Speedwoofer 10S the most powerful amp in its class. Besides its monstrous 350 watts RMS, the Speedwoofer’s amp also has wireless technology built in. Add the optional wireless transmitter ($50) and make your Speedwoofer wireless up to 35ft.

The Speedwoofer’s performance defies logic. Nothing like it exists – unless you’re ready to double or triple your budget. But if you do that, why not just get two Speedwoofers and quadruple your bass output…

Included: 1 Speedwoofer 10S

Frequency Response: 24-200 Hz ± 3db, substantial output down to 20Hz (CEA-2010)
Woofer: 10” high-excursion cast-frame woofer, double magnet structure
Nominal Impedance: 4 ohms
Weight: 40lbs
Dimensions: H: 16” W: 15” D: 16 3/4”
Feet: Includes 4 rubber feet
Power: 350 watts RMS @ 4 ohms
Distortion: <1% at rated power
Crossover Frequency: 40-200 Hz variable
Crossover Slope: 12 db
Auto On: Activated by audio signal, shuts off after 20 minutes with no signal
Phase Control: 0 to 180 variable
Power Draw: Auto on (no signal input): 13 watts
Power Draw: standby mode: 1 watt
Power Input: 115V, 60Hz, 230V, 50/60Hz AC
Fuse: 115V T5.0AL/250V
Fuse: 230V T2.5.0AL/250V

OPTIONAL BUILT-IN
WIRELESS RECEIVER

For only $50 more than our standard Speedwoofer 10S, add the wireless transmitter for easy installation & limitless placement options.

COMPRESSION GUIDE
TECHNOLOGY

THE ACE UP OUR SLEEVE

Compression Guide technology is the difference between RSL speakers and all other speakers. It’s the secret behind our award-winning sound. It’s why RSL speakers sound so clear and incredibly realistic.

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STANDARD SPEAKERS & SUBWOOFERS

RSL SPEAKERS & SPEEDWOOFERS

CUSTOMER TESTIMONIALS

BY THE MOST DISCERNING AUDIOPHILES

(81) TOTAL REVIEWS
RATING
I recently acquired this subwoofer and have it paired with my Axiom M22 bookshelf speakers in a 2.1ch configuration for a 1000 cu. ft dedicated music only room. After I had everything dialed in and calibrated with my receiver and found the perfect location for my sub, I played some tunes consisting of Jazz, Rock and mainstream Pop. All I can say is this subwoofer truly delivers. Nice, tight, CLEAN bass with a LOT of chest punch, especially for music. I also tried it with movies and couldn't believe the LFE was coming from this 10 inch sub. In my small room, I measured output down to 18-19hz. In short, it has both the qualities of a sealed sub (tight and clean punch) combined with the power and authority of a ported HT sub. In my very small room, the output is more than I will ever need. I've owned other subs from other prestigious and well known internet direct companies which I will not name here. These subs cost me almost twice as much as the Speedwoofer 10s and I can confidently say that none of them beat the Speedwoofer 10s at THIS price point. This is what you call value. Thank you RSL for making such an excellent product. Also a special shout out to the AVS forum members for recommending this subwoofer to me.

Robert

September 25th, 2020

RATING
I was looking to add a pair of subwoofers to my 2 channel setup. I spent a lot of time researching but you never know what you're getting until you actually hear it in your own room connected to your own system. I hate bloated, flabby, boomy bass and while I know the room plays a big role in the sound I can honestly say I'm blown away by the sound quality of the Speedwoofer. Turn it on and give the caps a bit to charge, play some tunes through it for a couple of hours to break it in and with careful placement and adjustment you'll be rewarded with deep, tight bass that blends very well with the rest of your system. Thanks Joe, I know I had a lot of questions leading up to actually buying something but I hate packing an item back up for return. No worries here though, the boxes have been thrown out!

Robert

August 19th, 2020

RATING
I added a white speedwoofer to my Q acoustics 3050i 5.1.4 setup. My application is 70% movies and 30% music. This subwoofer really delivers. Tested this sub with test cd for different frequencies and surprisingly it had significant response down to 18Hz. This is very helpful in movies like Underground 6 on Netflix. This have very tight performance which is very helpful in music. All in all I felt the subwoofer had traits of sealed box as well as ported box. Overall this sub Integrates really well with my Q Acoustics setup and serving my medium sized room well for movies and music.

Rohit Sharma

August 12th, 2020

RATING
RSL team, I paired the RSL Speedwoofer 10s with some Q Acoustics (sorry, they fit the decor) 3020i and 3090ci speakers and am completely blown away with this subwoofer. I needed a relatively small woofer and wanted deep range and the Speedwoofer exceeds my expectations in all areas. It is transparent in music and a force to be reckoned with during movies. I love the precision and musicality of this sub. Well done!

John

July 31st, 2020

RATING
Equipment: NAD 3020v2 Hybrid Amp, ELAC Uni-Fi UB5 (pair) Room Size: 15' x 12' Sub Settings: Onboard Crossover @100hz, Volume 20% Habits: 85% music, 15% movies Other sub owned: Hsu Research VTF-2 MK5, ELAC 3030, ELAC S10EQ, Polk PSW505 I knew I was in trouble when I plugged in a live LFE line into the sub (thought it was off) and scared the s**t out of me at 50% volume. The ELAC Uni-Fi pair sound good on their own but still need reinforcement on the bottom end for movies and music. First song I tested was Black Parade (Extended Version) by Beyonce and 50% sub volume was way too much for my tastes but damn was it loud clean bass; I dropped the sub volume to 40%. Next song, Are You Even Real? by James Blake, dropped the volume down to 30%. I settled on 20% by playing So What by Miles Davis since I knew how that was supposed to sound. Then it happened, the bass integrated with the bookshelf speakers and sounded non-directional.To make sure I did not sell myself short on bass I played the intro of the movie Edge of Tomorrow and yeah...the bass is definitely still there. Having owned other subs in the $500 - $800 price range, the 10s manages to outperform other more expensive and physically bigger subs. Buy this one (or two) and do not look back, you are getting serious bass for relatively little $$$!

Miguel Munoz

July 23rd, 2020

RATING
Thank you for building a fantastic product and offering it at an extremely fair price. I’m not sure what’s going on, and I consider myself a fairly experienced user, but your single Speedwoofer provides more satisfying and equally impactful bass as my JL F112 (sealed box-$4,000) in my room. The articulation and air moving capability are similar but the way your sub blends with my Revel Performa 3 speakers is superior. Absolute winner!

Micheal

July 20th, 2020

RATING
First off I'd like to thank Joe for getting back to me at the first of May during this pandemic and also answering other questions I had during the month,which led me to receive my pair of Speedwoofers. I've had a pair of mismatched vintage M&K subwoofers that I've owned since new. One was from 1985 and the other was 2000 and were just not sounding as good as they once did, back when I had my Magnaplaners. Then the amp went on the newer one and it was time to start shopping online for some new ones. I started checking on different forums and then learned about RSL and there Speedwoofer 10s, also found some very excellent reviews for this mighty mouse subwoofer 10in. So I got on RSLs website to find out that black was on back order. During this pandemic I've been listening to a lot more music. I've got a integrated KT88 tube amp,Shiit Gumby dac and cd transport which puts out some wonderful sounding music to my Heresy III speakers,but with out my subs in the mix, it was just not the same. Sure there were other company's,but I liked what RSL had to offer. 30 day home trial, free shipping to and from and no tax. What more could you ask for ! Since having a tube amp there is no preout to hook up subs,so I needed one with high level inputs,plus it has rca in and outs ,also has a real phase knob not a switch. This checked all the boxs,so I pre ordered a pair on May 7th and now the wait. Come June 15th they showed up at my door and started moving stuff out of the way to place the Speedwoofers behind the Heresy III. I've been wanting to hook these up in stereo,left output/left input and right output/right input to help augment the Heresy's, since they only go down to 58db. Went to turn on and got the nasty hum. I use to work in a local audio store in the late 70s and went through everything I could think of from back then to eliminate it,so then I was down to only having the speakers hooked up to the amp,no pwr cord or interconnects and still the same problem. I gave up that evening and thought about it threw the night and remembered that it could be a grounding issue. Got up the next morning and took some left over 14 gauge speaker wire,crimped on some spade connectors and attached to one of the screws on the plate amp and then to gnd lug on HT amp,since tube amp has no gnd lug and walah,all is silent,also did the same for the other sub. I went to set up gain at 12 o'clock,set crossover to 80hz and waited on phase till I got the others right. Went to put in a Dave Brubeck live cd which has a song with a stand up bass and wow to much bass,had to turn them down to about 10 o'clock. To set phase, I've been able to stand over sub and hear the difference as I turn the knob, till it comes in strong and clear. Now I sat back and could not belive what I'd been missing in bass. These subwoofers are very musical,very nice sound with kick drums and stand up bass was great ! Nice thing about the plate amp,is that I was also able to hook up my HT receiver LFE out to Y cords to input and output to y cords to the input to the other subwoofer and just have to switch the crossover to LFE when watching movies,then when listening to music,switch it to internal crossver. I highly recommend the RSL 10S, integrated well with both HT and tube amp. Now it's time to dust off the movie U-571 and listen and feel the depth charges go off, also a DVD of John Fogerty, that has a great drummer Kenny Aronoff slam on the drums. Again I'd like to thank Joe and his staff for all ther hard work during this pandemic and letting me enjoy my music and movies all over again.

Larry

June 18th, 2020

RATING
I have a townhouse with neighbors on both sides of me. I used 3 different brands of subwoofers and neither of my neighbors has complained about the sound. My 10S has arrived. Wow! What sound! And, within 2 hours of use, I received phone calls from both neighbors asking me to turn down the thunder! Please do not waist any more time reading this review. Instead, get out your credit card and order the 10S. You will thank me.

William

June 16th, 2020

RATING
I just received my Speedwoofer last week and placed it into my humble system. It is paired with a couple of well-burned-in first-generation CG-3s that have had to make due with a cheap sub I purchased a few years ago that finally gave up the ghost, so to speak. Until a week ago, I lived with all the much-harangued issues that tend to come with sub-standard subs and dealt with it by simply turning both the crossover frequency and volume way down to just fill in the very lowest end. That said, with the sub off I enjoyed the wonderful sound that emanated from the CG-3s on their own, I just used the sub for a bit of punch when watching movies, etc. Things have certainly changed! Preferring a simple stereo setup, I have my new Speedwoofer linked to a Yamaha A-S301 via a new Audioquest Greyhound sub cable using the Sub output port. Oh the Irony! I am now in a position--being an apartment dweller--where my humble system has the ability to literally destroy my neighbors cherished belongings! I literally have the volume of the Speedwoofer only 1/4 of the way up and feel every kick drum punch--bass in Jazz recordings is realistic in timbre, bloom, harmonics and decay. It has added so much to the mid-range presentation, as well. All this without the slightest indication of strain or distortion. All the boominess is gone. Bass is tight and quick. Fair warning, Godzilla's roar at half-volume will literally blow your head off! This is how you build a subwoofer! By the way, I somewhat apprehensively ordered a white one (the rest of my system being black) and was very pleased with how aesthetically appealing the look is with the white fabric grill. It certainly has the spouse approval factor covered. Thanks, Joe, and thanks RSL!

Kenneth

May 26th, 2020

RATING
5 stars! I bought the Speedwoofer 10S to replace the high end unit I purchased with my home theater redo. Several reviews convinced me to get it a try, despite the really inexpensive price. Now I call it the greatest value in my system. This sub was immediately better and blended strongly and well with my (otherwise) really good system. When the amplifier in the sub went down, RSL was direct, courteous and generous as I was just a bit out of warranty. They sent the replacement amp for free, the install was easy and the unit is really welcome to work (espcially during this shelter in place). Thanks, RSL, love the unit and your service was outstanding.

Bruce

May 19th, 2020

RATING
I've had a Hsu sub for years. It's been one of the best subs I've ever owned. I won't knock it at all here. But, in saying that,it was not going to be enough for my new home theater. I started looking online for a replacement. I kept seeing adds for RSL speakers. So I investigated, and researched for many days. Long story short, I reluctantly bought 2 speedwoofer's. My first concern was price, basically I could get 2 of these for thee cost of one other sub. Second was, would it fill my room? After sitting on these for about a week we finished our new room. I got everything hooked up and started the f