Velodyne SMS-1 (Black)

Subwoofer Management System

750749334

Velodyne Acoustics, the number one rated subwoofer technology company for over 20 years, now brings the control of Digital Drive to all subwoofers. The SMS1 offers all the features of the DSP-controlled, industry leading Digital Drive room correction software in a rack mountable case. The SMS1 improves the performance of any subwoofer.

The Basics of Bass

No matter what brand of subwoofer you have, or how much you may have paid for it, the relationship between your subwoofer and the room it's placed in dramatically affects the subwoofer's performance. Sub position, room shape and size always create anomalies in the subwoofer's frequency response that can leave the bass sounding weak or almost non-existent in your listening position, and can wreak havoc in the interaction between the subwoofer and the main speakers. For the first time in an outboard processor, Velodyne's Subwoofer Management System can display these room anomalies visually and provide all the tools needed to correct them. This allows you to optimize any subwoofer's and your system's bass performance regardless of the subwoofer's position, where in the room you listen or the room's shape and size.

Room Management Technology

The Subwoofer Management System features Velodyne's revolutionary Digital Drive room management technology. This Velodyne innovation allows any subwoofer's in-room frequency response to be measured using a calibrated microphone and to be viewed on any TV. Using the on-board 8-band digital parametric equalizer, you can easily automatically or manually optimize the subwoofer's performance for any listening position in any room right at your favorite seat. The SMS1 also offers complete digital control over crossovers (both subsonic and low pass), slopes, phase and polarity. This allows the best possible matching of your subwoofer to your speakers in your listening environment.

A One Box Solution

With the SMS1, there are no websites to go to, no calculations for you to make, no additional cables or devices you need to buy. Everything you will need to maximize the performance of your subwoofer in your room is included: a full feature remote control, a high quality calibrated microphone, a mic stand, the microphone cable and even the audio and video cables. Even the needed test tones are self-generated. And, of course, the DSP processor reads and measures all the parameters of the subwoofer automatically. The SMS1 comes in a slim, one unit high configuration and can be placed in a stack of equipment or rack-mounted using the included rack mount "ears". Simply install the SMS1 between the LFE output of your receiver or processor and your subwoofer, regardless of brand. You can also connect the SMS1 using balanced or speaker level inputs as your system allows or requires.

Convenient Remote Control

Never again will you have to get up and reach behind your subwoofer to adjust for each different source you might choose. The full feature, high quality remote control lets you adjust volume, limit output for late night listening with "Night Mode", and with the touch of one button dial in the right bass for any listening.

Tailor Your Bass for Any Source

The SMS1 comes preprogrammed with four fully adjustable listening mode "presets" for Action Adventure Movies, Movies, Rock/Pop and Jazz/Classical plus a fifth open preset that can be set to whatever you wish. Each of the five presets can be totally customized to your tastes and needs. Your sub adjusts for whatever program material you're listening to at the touch of a single button on your remote control.

Microprocessor Controlled

The SMS1 is controlled by a computer chip from Texas Instruments. All video and audio processing is processed by this chip. The unit can be commanded via RS-232 port by universal remotes such as Crestron and AMX -- another Digital Drive first. The software for the SMS1 can also be updated from Velodyne's website, so you will always have access to new features incorporated into later designs.

Included With Purchase

Rack mount ears, full feature remote control, power supply with cord, Digital Drive accessory kit consisting of mic, tabletop mic stand, mic windscreen cover, mic stand adapter, 6 ft. audio cable, 12 ft. video cable, 20 ft XLR mic cable.

Write A Review

The easiest stand alone sub EQ to own (March 14, 2012)

Ease of Use		(5/5.0)
Value		(4/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Mike - San Dimas, CA

I purchased a SMS-1 when they first came out and have been hooked ever since. I still use the first one I bought for my DIY subs in my main hone theater but just purchased a second one for my second system. I have tried most of the other sub EQs out there including some pro options like those offered by Behringer but the SMS-1 is still by far the easiest to use. I also have checked out the graph and compared it to Room EQ Wizard and Omnimic, the SMS-1 is close enough with the exception that it only covers from 15hz to 200hz. If the Omnimic was showing problems with the accuracy of the SMS-1 I would have kept the Omnimic but it was not needed.

SMS-1 an exceptional product for base management (February 14, 2012)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Stephen M. - Cheyenne, WY

For years I have tried to integrate my subwoofer with my main speakders without degrading the sound. At last the SMS-1 the flexibility is amazing i tried so many different setting and then finally it all came together! I am now a very happy owner of SMS-1 and enjoying music with bass that actually make me feel like Im there!. Also, I must state the Service at Vanns is exceptional. In the little time I worked with sales and customer service they proved to be very helpful and exceptional!

I don't know how I lived without this!!! (July 29, 2011)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Eddie Z. - Orland Park, Illinois

For years I have been adjusting the manually. I strongly discourage this now. This SMS-1 unit made a huge improvement. And Velodyne customer service is always there to help. THERE IS ONLY ONE WORD FOR A SUBWOOFER AND IT IS VELODYNE.

Worth the $ (June 07, 2011)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: seth p. - raleigh, NC

This is a terrific product. I am using this as a crossover to remove 80hz and below from my bookshelf speakers and to boost the bass signal that is sent to my subwoofer. I am using the SMS-1 in-between my preamp and power amp. Removing the low bass allows my bookshelf speakers to better reproduce midrange and allows them to throw a larger soundstage. Since the maximum gain on my subwoofer is a little low when used with a 2 channel preamp, the SMS-1 does a great job boosting the bass signal so that the bass volume is properly matched to the bookshelf speakers. This unit was a huge improvement for my system and it sounds better than I expected. You don’t have to worry about the SMS-1 degrading your preamp’s signal since there are no op-amps on the left and right channels your preamp’s signal will just pass through the SMS-1 without being amplified again. But there is an op-amp on the LFE out put. Set up is easy- basically you put the microphone in your favorite listening position, connect it to the SMS-1, and push 3-2-1 on the remote. The SMS-1 emits a series of tones for about a minute and then it’s done. It automatically configures the bass equalization points and crossover slope for the subwoofer NOTE- the high pass crossover is fixed at 80hz at a 6db slope. If you don’t trust the SMS-1’s calculations or you feel the need to tinker with it’s results, you can hook up the SMS-1 to a TV and use a GUI to tweak the EQ. I plan on keeping the automated settings. The equalized bass is just amazing- tight and clear. It has an 8 band EQ, which is amazing since all 8 bands are just for bass- most stereo EQs are 5-7 bands and cover the entire audio spectrum. I guess what’s more amazing to me is how much better my bookshelf speakers sound now that they don’t have to reproduce lower bass. A word of caution is that when the SMS-1 sets up the EQ, the sweet spot for the sub will be wherever the microphone was positioned. In my house, the equalized signal creates “nodes” in other rooms where the bass is incredibly powerful. So if you are NOT sitting right in the sweet spot, you may have to turn the equalization to “off” aka flat, which is easy to do with the remote. Other thoughts *The “THRU” and 80hz high pass output work when the unit is not powered a good feature if you have a power amp driving speakers in another room *The remote is a great feature since each album is recorded different and requires a little tweaking of the bass volume. But the remote is huge! *The SMS-1 is sturdy and well built and is heavy for its size. You can tell there are good parts inside. *Blends well with bookshelf speakers when using the 80hz high pass filter maybe due to the gentle 6 db slope?. *Make sure you turn on your main speakers to a descent volume say, 70db when setting up the SMS-1 with the supplied microphone. The test tones actually go up beyond bass levels so that the sub’s volume can be set up to match the satellites’ volume this is not clear in the manual Cons *Runs on a 12 volt power supply rather than 120v. However, the power supply is not a wall wart. It’s the type that has a standard power cable that plugs into a transformer like a laptop power supply so that the power supply can sit on the floor or behind the unit. *I wish this unit was standard depth. Since it’s only about 6 inched deep, you really can’t stack other equipment on top of it. So placement can be tricky. Final Thoughts I found this product after looking for a 2 channel electronic crossover. I found many “DJ style” units for around a hundred bucks, which weren’t aesthetically pleasing and seemed to be made of cheap parts. I didn’t find this unit until after many days of searching the web. The SMS-1 has to be one of the most poorly marketed audio products out there. By calling it a “Subwoofer Management System,” the fixed 80hz high pass crossover feature can be overlooked, which is one of it’s best features. The “HSU High End Crossover” was another contender for my needs, but it has far less features than the SMS-1 and costs about the same. Plus I trust the Velodyne name over HSU. Hope this helps.

Velodyne SMS-1 (February 15, 2010)

Ease of Use		(5/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Mike S. - N Syracuse, NY

Great item, really livens up the bass. While my SVS 16-46 PC puts out some serious bass, the SMS-1 took it to a whole new level. It is simple to use, and great bang for the buck. I would recommend this for any capable subwoofer. While my room & sub had a pretty flat response, this smoothed it right out. Keep that SPL meter handy you may have to turn down the bass when youre done.

Velodyne SMS-1 (February 14, 2010)

Ease of Use		(5/5.0)
Value		(4/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Roy fuller - Hastings, MI

Great product! Works really fast eqing subs. You can also eq manually and have 5 different eq presets. Its a high quallity product. Vanns service was excellant and shipping was very fast.
I would highly recommend the product and Vanns.

Velo SMS-1 The Difference Maker (February 13, 2010)

Ease of Use		(4/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Brad M. - Pensacola, FL

Great Product. Smoothing out the bass line made a big difference in the sound and the feel. I have a sub that has a 3 band EQ - which is good, but this make a much bigger difference.

Read the instructions well. Look up the Outlaw instructions as they will help. Once you get an understanding of the unit and controls, you can dial it in even more. Auto mode is OK. Manual adjust is much better.

Once you get a handle on the controls, it is easy to use. May take an hour or two to dial in right.

SMS-1 (February 11, 2010)

Ease of Use		(4/5.0)
Value		(5/5.0)
Performance		(5/5.0)
Overall Rating		(5/5.0)

Reviewed By: Marijan K. - Pomona, CA

Integrating the sub-woofer correctly with your speaker system and room resonances is not an easy task even for professionals. Velodyne SMS-1 was first product on the market that makes this task fairly easy and intuitive - not for you grandma though. Results will vary depending on your listening environment, but in my case this is my second SMS-1 IMPROVEMENTS WERE COLOSSAL. If you consider yourself even half of an audiophile this is a must equalizer to have.
Even with my Denon 4308CI that has
Audyssey MultEQ XT Auto-SetupRoom EQ, SMS-1 made an audible difference I highly recommend it!

Comparison Specifications

Automatic or Manual In-Room Bass Correction
Full DSP Control
On-Screen Display
8-Band Digital Graphic/Parametric Equalizer
Works With Any Subwoofer
Digital Control Over Crossovers, Slopes, Equalization and Volume
Full Feature Remote Control
Customizable Listening Mode Factory Presets
A Fifth Customizable Preset
Complete Accessory Pack

Additional Specifications

Night Mode
Microphone Included
On-Screen Display

Dimensional Specifications

Dimensions: 16.5" W x 2.0" H x 6.5" D, 19" W with Rack Ears
Weight: Approx. 17 lbs.

Velodyne SMS-1 Warranty Details

Two Years Parts and Labor

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