Calibrating Your Subwoofer with the Velodyne SMS-1 Equalizer/Analyzer

[Big Daddy]

THE VELODYNE DIGITAL DRIVE SMS-1 SUBWOOFER MANAGEMENT SYSTEM

The Velodyne Digital Drive SMS-1 Subwoofer Management System is an outstanding product for conditioning your subwoofer.

I have been planning to buy this unit for several months, but the price was $750. Recently, the price was dropped to $399 and I immediately jumped in and bought it from Audioholics Store. Unfortunately, many places like Audio Advisor, One Call, and Music Direct sell it for $550. Even Audioholics Store raised its price to $499.

Brochure:
http://velodyne.com/product-accessor...nt-system.html

Manual:
http://velodyne.com/product-accessor...nt-system.html

Reviews:
Velodyne SMS-1 User Review
Product Review
Velodyne SMS-1 Subwoofer Parametric EQ System — Reviews and News from Audioholics
Stereophile: Music in the Round #15
Home Theater & Sound Equipment Review -- Magnepan MG12/MC1 Home-Theater Speaker System (4/2006)
http://www.velodyne.com/news/review_files/HDTV_SMS.pdf
Velodyne

Specifications:

Subwoofer Control: Up to 3 subwoofers
Front Panel Display: Indicates volume, preset and operating modes (Auto-EQ, mute, night-mode) IR Remote Control: Yes
Auto EQ: Yes
Graphic or Parametric Equalizer Controls for Room EQ: Yes
Operating Frequency Range: 15 Hz - 200 Hz
Harmonic Distortion: less then 1%
Digital Presets: 6 presets for customized listening modes and EQ defeat
Digital Phase: 0° to 180° (variable in 15° increments)
High Pass Crossover: 80 Hz (6 dB/octave slope)
Low Pass Crossover: 15 Hz - 199 Hz (adjustable)6 dB/octave, initial to 48 dB/octave, ultimate
Subsonic Filter: 15 Hz - 35 Hz (adjustable)12 dB/octave, initial to 48 dB/octave, ultimate
Polarity: Adjustable (+/-)
Auto On/Off: Yes
Inputs: Balanced (XLR), Line-level (RCA), Speaker-level
EQ Outputs: Line-level (RCA), Balanced (XLR)
Other Outputs: Thru-put (RCA), High-pass (RCA) (fixed at 80 Hz)
Crossover Bypass: Yes
Daisy Chain Feature: Yes
Included Accessories: 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
Dimensions (H/W/D)(w/out rack mount ears): 2.0" x 16.5" x 6.5"
(5.1 x 41.9 x 16.5 cm)
Dimensions (H/W/D)(w/rack mount ears): 2.0" x 19" x 6.5"
(5.1 x 48.3 x 16.5)
Weight (approx.): 17 lbs.
Finish: Black
Warranty: (parts/labor) Three years (electronics)
Five years (drivers)

The MIC-5 Multi-Location Bass Management Kit

The MIC-5 Bass Management Kit is designed to integrate with the Velodyne Digital Drive® and SPL™-R EQ software for users looking to optimize their bass response for more than one spot in a room. In the past, with a single microphone, the user needed to either optimize the bass
for a single position, or move the mic manually among various spots and optimize the EQ curve accordingly. With the MIC-5, from one to five microphones can be used in different listening positions with the EQ software seeing an average of all the locations together as a single response curve.

VelodyneSMSMuti.jpg

Reviews & Information:
http://velodyne.com/product-accessor...ems/mic-5.html
http://www.audioholics.com/reviews/a...e-mic-5-add-on
http://www.audioholics.com/news/pres...ed-by-velodyne


Competitors:
Anti-Mode 8033 Automatic Subwoofer Equalizer
Room Equalization Wizard (REW) & Behringer Feedback Destroyer (BFD)
PARC (Parametric Adaptive Room Compensation) by Rives Audio
The Audyssey Subwoofer Equalizer (Discontinued)
SVS AS-EQ1 Sub EQ (Discontinued)
Audio Control
KRK ERGO Digital Room Correction System (Correction frequencies: 20Hz - 500Hz)
JBL MSC1 Monitor System Controller
Detailed Review of JBL MSCI

The following is from The Outlaw’s Guide to Velodyne Digital Drive SMS-1 Subwoofer ManagemenT System.

Front Panel:

FP1: Power Switch
Press this button into the “ON” position to turn it on. The remote
control or 12V trigger can now be used to switch in and out of
standby mode. If the unit will be unused for an extended period
of time, press the power switch to the “OFF ” position to prolong
the life of the SMS-1.

FP2: IR Sensor
Receives commands from the remote control.
FP3: Front Panel Display
Shows volume and active preset and indicates when the unit is
muted, in Night mode, or in Auto-EQ mode.
FP4: Front Microphone Input
The microphone can be connected to this front input or to the
rear microphone input (RP3 ).

FP5: Volume Control
The “+” button increases the volume of the SMS-1 and the “-” button
decreases the volume. These buttons are also used when installing
software updates. See software update instructions for details.

Rear Panel:

RP1: XLR LFE Output
Does your subwoofer offer an XLR-style balanced connection? If
so, this is where you will connect the SMS-1 to the subwoofer.

RP2: XLR LFE Input
Does your receiver or processor offer an XLR-style balanced output
for the LFE channel? If so, this is where you will connect the
receiver’s LFE output to the SMS-1.

RP3: Rear Microphone Input
The microphone can be connected to this rear input or to the
front microphone input (FP 4).

RP4: IR Input
A remote sensor or distributed IR system can be connected here
so that the SMS-1 can receive IR commands even if the unit is hidden
from view.

RP5: RS-232 Output
This can be used to connect to other SMS-1’s if you have several
units in your system.

RP6: RS-232 Input
This can be used to connect to a PC for software updates, a control
system, or to other SMS-1’s.

RP7: EQ Video Output
Composite and S-video outputs are available to provide the onscreen
menus used to configure the SMS-1. Connect one of these to
your TV, receiver or processor. See the EQ audio output (RP 9) below.

RP8: LFE Outputs
Connect up to three subwoofers to the SMS-1 using these LFE
outputs.

RP9: EQ Audio Output
This stereo analog output is used to pass the SMS-1’s test tones
to the receiver or processor. This output must be connected to
an input of your receiver or processor; do not connect this output
directly to your TV. It may be convenient to connect the EQ video
output (RP 7) to the same input.
THE OUTLAW’S GUIDE TO THE SMS-1

RP10: Thru Audio Output
This output provides an unaltered copy of the input received by
the SMS-1. If you have several SMS-1 units in your equipment
rack, you can daisy-chain them together by connecting the Thru
output of the first unit to the LFE input of the second unit.

RP11: Audio Output
This stereo analog audio output includes an 80Hz high-pass
cross-over. If your processor has no LFE output, you can connect
your left and right pre-amp outputs to the audio inputs (RP 12)
and connect these outputs to the amplifier that powers your left
and right speakers.

RP12: Audio Input (LFE)
This stereo analog audio input is mainly intended for connecting
the LFE output from your receiver or processor to the SMS-1;
either the left or right input can be used. This input can also be
used along with the left and right pre-amp outputs if no subwoofer/
LFE output is available.

RP13: 12V Trigger
A 12V trigger (such as the triggers often found on receivers or surround
processors) can be connected here to turn the SMS-1 on
whenever a 12V signal is present. The trigger must be enabled in
the SMS-1’s menu. We’ll show you where later (see page 20).

RP14: Speaker Level Audio Input
Exposed (bare) speaker wire can be connected here. This is useful
for systems in which no subwoofer/LFE output is available at
the receiver.

RP15: 12V DC Power Input
Connect the included power supply to the SMS-1 here.

Continued on the next Post.