| MM400 Tw eeter   MM455 5.25" System   MM465 6.5" System   Polk Audio—A History of Excellence   The Story of Dynamic Balance®   Like the way these great new speakers sound in your car? You’ll love the way Polk Audio   speakers sound in your living room! Polk Audio has been making world-class loudspeakers   since 1972. Polk’s dedication to fundamental research has resulted in over 25 patents.   Your new Polk speakers employ Dynamic Balance, a technology that came out of a joint   research project between Polk Audio and Johns Hopkins University. This laser imaging   research enables us to view the entire vibrating surface of a driver or tweeter, allowing us to   observe the resonances that develop on speaker cones as they move. These resonances are   the root cause of frequency response distortions.   Polk loudspeakers have earned the praise of audio experts the world over, garnering dozens   of awards for innovative, high-quality design. Whether you desire audiophile-quality sound   for your home, car or even your multimedia computer, Polk loudspeakers deliver   unmatched performance and value.   As an x-ray enables a physician to discover the root cause of a symptom and thereby pre-   scribe the right treatment for a cure, this laser imaging technique allows Polk engineers to   find the right combination of high-tech materials, geometry and construction techniques   to tune out the offending resonances. The benefit of Dynamic Balance is the dramatic   improvement in the sound quality of our speakers, which every listener can appreciate. You   no longer have to choose between excellent bass and smooth, clear midrange and highs.   Now you can have it all, thanks to Dynamic Balance technology.   See the full line of Polk Audio loudspeakers at your Polk Audio dealer, or at   www.polkaudio.com   Concentric breakup of cone   produces distortion   Radial breakup of cone   produces distortion   Polk “Dynamic Balance”   design results in   low distortion   Laser Interferometry tests produced holographic “photos” of drivers   in motion. The “bad” drivers are ex periencing modal breakup that   results in performance-robbing resonances. A “perfect” driver would   look like a cake (flat on top), m ore, like the photo on the right.   A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   MM455 and MM465   2 mid/ woofers   MM400:   All Polk Audio/MOMO Drivers Feature:   2 tweeters   • • • • • • • Futuristic cast aluminum baskets that mimic MOMO wheel designs   Elegant matching motor cup conceals a beefy magnet structure   Rugged, highly conductive pro-grade nickel-plated binding posts   Polymer/mica composite cones   2 tweeters   2 in- line crossover networks   2 tweeter flush mount cups   2 flush mount cup clamps   2 tweeter surface mount cups   Registration card   2 crossover networks   2 tweeter flush mount cups   2 flush mount cup clamps   2 tweeter surface mount cups   2 grilles   Aramid fiber spiders for greater dynamic range   6.5” mid/driver features 1.5” voice coil, 5.25” mid/driver features 1” voice coil   Woven carbon-fiber dustcaps   8 - #8 screws with 9/16” Allen head   8- screw clips   Polk Audio/MOMO Tweeters Feature:   2- #4 Philips head screws   Tweeter hook- up wire   Mid/ woofer hook- up wire   Registration card   • Lightweight red fabric dome tweeters for flat response, great inner detail and   low distortion   • • • Neodymium magnets that are small and powerful   Low viscosity ferro-magnetic cooling fluid for superior power handling   Surface and flush-mount swivel cups allow fine tuning of the tweeter angle for   better soundstaging   Read this manual thoroughly first. If you have any doubts about your ability to execute   any of the installation steps, save yourself a lot of grief and contact a professional installer   (your Polk dealer is a good place to find one).   Component System Crossovers Feature:   • • • • • Gold plated terminals   If you intend to do the installation yourself we assume that you possess some skill in the   proper use of hand and power tools. No matter how much installation experience you have,   it’s always a good idea to:   Air-core inductor for low distortion   Mylar capacitors for cleaner, more transparent highs   Tweeter level control to fine-tune the tonal balance of your system   Midrange Extension switch bypasses the low-pass filter for better driver-to-   tweeter blending when the two components are separated by a great distance   • • • • Read this manual thoroughly before you begin.   Plan your installation carefully.   Allow enough time to complete the installation without rushing.   Protect your car from unwanted scratches.   Getting Started   Please inspect each loudspeaker carefully. Notify your Polk dealer if you notice any   damaged or missing items. Keep the carton and packing material. They will do the best   job of protecting your speakers if they need to be transported. Check that you have the   following parts:   Necessary Tools   • • • • • • • • • • • • • Phillips head screwdriver   9/16" allen wrench   Flat blade screwdriver or putty knife   Electric drill   1/4" and 1/8" drill bits   Reciprocating saw or razor knife   Magic marker for marking the cutout (new location only)   Metal cutting tool (hole saw, if you intend to cut metal   Metal file   Soldering iron or a supply of solderless connectors   Safety glasses   Wire strippers and cutters   Crimping tool   A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   Installing the Polk/MOMO System Mid/Woofers in Factory Locations   Most cars have speaker grilles that blend with the rest of the car’s interior. Sometimes it is   difficult to determine how to remove these grilles to gain access to the speaker that you intend   to replace. If you have one of these grilles, you may want to consider using a professional   installer. On some cars, the grilles are held by screws or spring clips. The screws will be   obvious, the spring clips won’t.   Installing the Components   The Polk/MOMO System Crossovers   You will need to make wiring connections from your amp or radio to the crossovers and from   the crossovers to your mid/woofers and tweeters (Figure 1). Choose crossover box locations   that are convenient for making these connections. As there are adjustments on and in the   crossover networks which you will need to access during the “fine tuning” stage of the instal-   lation, place them in a spot that’s easy to get to. Once you’re done fine-tuning the system, the   crossovers can be hidden away and secured.   If there are screws, remove them, put them in a safe spot, and remove the grilles. To remove a   clip-on grille, use your flat-blade screwdriver or a putty knife to gently pry up the grille. If it   resists, back off and think again about the professional install. The cost of one of these can   sometimes be less than the cost of new door panels. Some grilles are integral parts of the door   panel and are not removable. In these cases you will need to remove the entire door panel to   gain access to the speaker location.   Your Polk/MOMO Series crossovers have clearly marked terminals. Before making connections   between your crossovers, mid/woofers and tweeters, refer to Figure 1. The wires provided with   your Polk/MOMO System have one conductor with a white stripe. Use this wire as the positive   (+) lead and connect it to the positive (+) terminals on your crossovers as well as to the posi-   tive (+) terminals of each speaker.   This will usually require removal of door handles, window mechanisms, and other parts such   as door pulls and lock buttons.   1. Once you get the grille off, remove the factory speakers. Save the hardware.   You may be able to reuse it to mount your new speaker.   2. Cut the supplied driver wire (the heavier gauge of the two sets of wire) in half.   3. Remove the yellow crossover cover by squeezing the cover at the tabs. Attach   speaker wires to the crossover “woofer” terminals. Attach the wire with the white   stripe to the positive (+) terminal screw, and the un-striped wire to the negative (-)   terminal screw.   INPUT   4. Route the driver wire from the crossover location to the mid/woofer location.   5. Strip 1/8” – 1/4” (4-6 mm) of plastic insulation from the cut ends of the driver wire.   6. Unscrew the binding post thumbnuts on the mid/woofers to fully expose the hole in   the terminal shaft and slip the other end of the wire into the holes in the input ter-   minals. Tighten the thumbnuts finger-tight (do not over-tighten the nuts as you   may strip the threads). Be sure to attach the wire with the white stripe to the posi-   tive (red) terminal, and the un-striped wire to the negative (black) terminal.   7. If the factory speaker had three screw holes, you’ll need to drill additional screw   holes to accommodate the four screw pattern of the Polk/MOMO mid/woofer.   8. Using the hardware retained from the factory speaker or the screw clips supplied   with the Polk/MOMO speaker, secure your new speaker to the car panel.   WOOFER   TWEETER   Figu re   1 (Note: Crossover is not weather proof)   A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   3. Without running the wires through doors or under upholstered panels, connect   your Polk/MOMO tweeters to these wires. (See detailed instructions below)   4. Have a friend sit in the passenger’s seat while you sit in the driver’s seat, each   holding a tweeter in hand.   Installing the Mid/Woofers in Non-Factory Locations   If you have decided to install your Polk/MOMO Series mid/woofers in locations other than   those provided by the automobile manufacturer, make certain that the location you choose is   clear of all obstructions, both in front of and behind the panel, before you proceed. Pay par-   ticular attention to window mechanisms and any body panels critical to the structural   integrity of the vehicle. The mounting depths and cutout diameters of your Polk/MOMO   Series mid/woofers are listed with all the other important specifications at the end of   this manual.   5. With music playing, position the tweeters in different locations around the pas-   senger compartment, listening for the differences caused from these placements.   We recommend using vocals for this test. You will be able to determine in a short   time the best location for your tweeters. The soundstage or image should “float”   above the dash and not be localized to the physical location of the drivers or   tweeters. Both passenger and driver should be able to hear both channels and a   stereo image.   1. Cut a hole in the panel (5 inch or 127 mm hole for the MM455 and 5-15/16 inch or   150.9 mm hole for the MM465).   2. Using the speaker grille as a template for marking the locations of the four screw   holes.   The Polk MM400 tw eeter offers tw o mounting   options for installation flexibility.   Mounting Option #1—Surface mounting the   MM400 Tweeter   3. Drill the holes with a 1/8” bit.   4. Attach the screw clips to the car panel at the hole locations.   5. Cut the supplied driver wire (the heavier gauge of the two sets of wire) in half.   6. Remove the yellow crossover cover by squeezing the cover at the tabs. Attach   speaker wires to the crossover “woofer” terminals. Attach the wire with the white   stripe to the positive (+) terminal screw, and the un-striped wire to the negative (-)   terminal screw.   1. Using the base of the surface mount cup as a   template, mark the screw hole and drill it using a   1/8 inch drill bit. Mark the wire holes (for the   tweeter wires), drill using the 1/4-inch drill bit.   2. Attach the surface mount cup to the panel using   supplied #4 screw.   7. Route the driver wire from the crossover location to the mid/woofer location.   8. Strip 1/8” – 1/4” (4-6 mm) of plastic insulation from the cut ends of the driver wire.   9. Unscrew the binding post thumbnuts on the mid/woofers to fully expose the hole   in the terminal shaft and slip the other end of the wire into the holes in the input   terminals. Tighten the thumb nuts finger-tight (do not over-tighten the nuts as you   may strip the threads). Be sure to attach the wire with the white stripe to the posi-   tive (red) terminal, and the un-striped wire to the negative (black) terminal.   10. Place the grille over the driver and line up the screw holes with the screw clips on   the car panel.   3. Cut the supplied tweeter wire (the lighter gauge   wire) in half.   4. Strip 1/8” – 1/4” (4-6 mm) of plastic insulation   from the cut ends of the tweeter wire. Connect   this end of the wire to the tweeter terminals of   the crossover. Connect the white-striped wire   Fig ure 2   strand to the positive (+) terminal of the   11. Secure the speaker/grille assembly to the car panel with the supplied Allen   head screws.   crossover tweeter output and the un-striped wire   to the negative (-) tweeter terminal.   5. Route the tweeter wire from the crossover to the tweeter location. Push the red   and black tweeter wires through the holes in the bottom of the tweeter cup and   though the panel.   Polk/MOMO System Tw eeters   One important advantage of component systems is their ability, when properly installed, to   improve the soundstage created by the music in your car. The soundstage is the musical “pic-   ture” made up of the instruments and vocalists. The difference in the soundstage will be dra-   matic depending on where you mount your tweeters. We recommend a simple experiment   that will help you decide the best spot for your tweeters in your car. Here are the steps:   6. Slip the male fast-on connector on the red tweeter wire onto the female connec-   tor on the white-striped wire from the crossover and the black tweeter wire to   the un-striped wire (Figure 2). Make sure the clear plastic insulators fully cover the   fast-on connectors otherwise you may short the tweeter leads and possibly dam-   age your amplifier.   7. Mount the tweeters by gently pushing them into the surface mount cup. Be care-   ful not to pinch the wires.   1. Complete the installation of your entire system except for the MM400 tweeters.   2. Connect the wires provided with your tweeters to the tweeter terminals on your   Polk/MOMO crossovers. (See detailed instructions below)   8. Once the tweeter is mounted and connected, swivel the tweeter to fine-tune the   soundstage image of the system.   0 1 A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   Mounting Option #2 - Flush mounting the   MM400 Tweeter   MM400 Component Tw eeter Hook-up   When purchased as a separate unit, the MM400 tweeter includes a crossover network   integrated into the hook-up wires. This high-pass filter allows the MM400 to be used with   other components. It is important to maintain correct polarity. The red wire connects to   the positive (+) amplifier terminal and the black to the negative (-) amplifier terminal.   1. Remove the panel on which you are going to mount the   tweeter and check for proper clearance behind it. The   flush mount kit is 13/16 inch deep. Measure to make   sure there is sufficient depth behind the spot you   choose the final location.   Fig ure 3   If your system contains an active crossover, you may bypass the in-line crossover and wire   the tweeter directly to the output terminals of an amplifier that has a high-pass filter   (crossover) on its input. The minimum crossover point should be 2 kHz at 12dB per octave.   2. Use the hole that is punched into the cardboard packing   insert as a template to mark the location and size of the   mounting hole.   3. Mark the center of the spot and cut a hole with the 2-   inch hole-saw attachment for your power drill. Go slow.   Or you can use a razor knife instead of a drill.   4. Cut the supplied tweeter wire (the lighter gauge wire) in   half.   DO NOT USE THE TWEETER WITHOUT A CROSSOVER NETWORK.   Damage to the tweeter from thermal overload will result without the protection provided   by a crossover and will void your warranty.   Extending Frequency Response using Mid-Range Extension   5. Strip 1/8” – 1/4” (4-6 mm) of plastic insulation from the   cut ends of the tweeter wire. Connect this end of the   wire to the tweeter terminals of the crossover. Connect   the white-striped wire strand to the positive (+) terminal   of the crossover tweeter output and the un-striped wire to   the negative (-) tweeter terminal.   The Polk Audio/MOMO Crossover features a Mid-Range Extension option. When placed in   the “ON” position, this removes the low pass crossover filter from the mid/bass driver, allow-   ing it to run full-range. This may be helpful in getting a better “blend” between mid/driver   and tweeter when the two are placed some distance from each other.   Fig ure 4   6. Route the tweeter wire from the crossover location to the   tweeter location.   7. Assemble cup, clamp, and machine screw loosely.   8. Route the red and black tweeter wires through the holes   in the bottom of the cup.   Fig ure 5   9. Slip the male fast-on connector on the red tweeter wire   onto the female connector on the white-striped wire from the crossover and the   black tweeter wire to the un-striped wire (Figure 2). Make sure the clear plastic   insulators fully cover the fast-on connectors otherwise you may short the tweeter   leads and possibly damage your amplifier.   10. Press the assembly into the 2” hole until the clamp edge is below the mounting   surface, then tighten the screw. The cup will clamp down to the surface as the   screw is tightened (Figure 3). In the case of a thick mounting surface, the legs of   the clamp can be bent outward by inserting a screwdriver through the four rec-   tangular holes in the cup while still mounted (Figure 4)   11. Snap the tweeter into the mounting cup, being careful not to pinch the wires.   12. Once the tweeter is mounted and connected, swivel the tweeter by applying firm   pressure to the edge of the tweeter module. DO NOT apply pressure to the grille.   NOTE: to remove the tweeter assembly, place a small screwdriver   into the side slot and pry carefully upwards (Figure 5)   2 1 A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   It works like this: Normally the crossover rolls off the high frequency response of the driver   in a steep slope. But when a great distance separates a tweeter from the driver (for example,   the driver is on the bottom of the door panel, and the tweeter is on the top of the door panel   or dash) getting a good driver-to-tweeter blend may be difficult. The Mid-Range Extension   feature bypasses the driver’s crossover, extending the response of the driver to better meet   that of the tweeter. Experiment to find the setting that best suits your installation.   Amplifier Power Requirements   Your speakers will work well with a variety of electronic components. As little as 25 watts   (RMS) per channel will deliver adequate listening levels in most cars. If you have a noisy   car or intend to play your system at loud listening levels, more power is necessary to achieve   the best performance. Consult your Polk Audio dealer for specific recommendations.   Tw eeter Level   Safe Limits Of Operation   The slide switch on top of the crossover box adjusts the level (volume) of the tweeter relative   to the mid/woofer. Start with the switch in the bottom position and listen. If you want a   “brighter” sound, move the switch to the middle position and listen again. The top position   provides the greatest amount of tweeter output.   Your Polk loudspeakers are made with the highest quality materials for years of trouble-free   performance. However, damage to loudspeakers can occur when an amplifier, regardless of   its wattage, is made to play at higher listening levels than its power can cleanly produce   (usually beyond the “2 to 3 o’clock” position on the volume control).   If you have the MM400 separate tweeter, there is a blue wire loop on the in-line crossover.   When the wire is intact the tweeter plays at full output. If the system sounds too “bright,”   cut the wire loop to decrease the tweeter output by 3 dB.   This results in very high levels of audible distortion, originating in the amplifier, which   adds a harsh, gritty sound to the music. Contrary to popular belief, a speaker is more likely   to be damaged by trying to get too much volume from a low-powered amp or receiver than   from a high-powered one.   Polarity / Blending   If it seems that the tweeters and mid/woofers are not “blending” or working together in   harmony, try changing the polarity of both the tweeters by reversing the positive (+) and   negative (-) tweeter wires at the crossover. Reversing the absolute phase of the tweeters may   help the blending or integration of the system components, particularly if the tweeters and   mid/woofers are on different planes.   Technical Assistance Or Service   If, after following the hook-up directions, you experience difficulty, please double check   all wire connections. Make sure that your electronic equipment is operating correctly by   hooking up another speaker to the speaker output. For example, if you are not getting   sound from the left channel speaker, connect the right channel speaker to the left output.   If you still get no sound from that side, the problem is in your amp or source electronics.   Should you isolate the problem to the speaker, contact the authorized Polk Audio dealer   where you made your purchase. Authorized Polk Audio dealers are the best source for   advice and assistance.   Tw eeter Angle   The MM400 tweeters may be pivoted to get the best high frequency response and sound-   stage. Generally, pointing the tweeters toward the listening position will yield the best   results. But don’t be afraid to try other angles. Use the position that sounds best to you.   Pivot the tweeter module by applying firm pressure on the edge of the tweeter module.   DO NOT APPLY PRESSURE TO THE DOME ITSELF.   Call Polk Audio’s Customer Service Department at 1-800-377-7655 from 9am to 6pm,   Eastern Time, Monday through Friday. Please do not hesitate to call us if you have   questions about your speaker system.   Visit http://www.polkaudio.com   4 1 A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   Polk/MOMO Mid/Woofer Technical Sheet   THIELE / SMALL PARAMETERS   Specifications   MM455   MM465   MM400   5.25" Mid Driver   6.5" Mid Driver   50 Hz - 5.5 kHz   50 Hz   Recommended   Amplification   Freq. Response   68 Hz - 5.5 kHz   68 Hz   25-100 watts   25-150 watts   25-100 watts   Resonant Freq. (Fo, Fs)   Impedance(DCR)   4.0 ohms   4.0 ohms   5.5 ohms   Qms   Qes   Qts   9.06   9.58   0.61   0.67   Frequency Response   (+/-3dB)   68 Hz - 20 kHz   50 Hz - 20 kHz   4.4 kHz - 20 kHz   0.58   0.62   Sensitivity   (1w/1m)   Vas   5.27 L   14.61 L   .515 ft3   86 dB   87 dB   90 dB*   5 oz   .186 ft3   431 µm/N   5.5 TM   .0093 m2   .100 ft2   12.6 g   Magnet Weight   Height   13.5 oz   14.4 oz   Cms   BL   493 µm/N   5.8 TM   N/A   N/A   N/A   N/A   Flush Mount Cup:   0.9"(22.8 mm)   Surface Mount Height:   1.015"(25.7 mm)   Sd   .0145 m2   .156 ft2   Mms   19.8 g   Cutout Dimensions   5.0"   5.94"   2.06"   127.0 mm   150.9 mm   52.4 mm   Winding Width   12.7 mm   .500in.   3.4 mm   .3132 in.   14.3 mm   .562 in.   .265 mH   12.4 mm   .488 in.   3.2 mm   .126 in.   15.2 mm   .600 in.   .313 mH   Mounting Depth   top mount with grille   2.72"   69.1 mm   2.81"   71.4 mm   N/A   N/A   Xmax (Linear)   Xmax (Mechanical)   Le   Mounting Depth   bottom mount   3"   3 1/16"   77.8 mm   N/A   N/A   76.2 mm   Grille Height   3/4"   19.1 mm   3/4"   19.1 mm   N/A   N/A   Grille Diameter   6 13/32"   162.7 mm   7 1/4"   184.1 mm   N/A   N/A   Crossover Frequency   Crossover Order   4200 Hz   4200 Hz   4800 Hz   Tweeter &   Driver**:   Tweeter &   Driver**:   1st Order Butterworth   2nd Order   Butterworth   2nd Order   Butterworth   *When MM400 bought separately sensitivity = 90 dB with loop intact   When MM400 bought separately sensitivity = 87 dB with loop cut   **Midrange extension switch on crossover will bypass driver crossover   6 1 A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   Polk/MOMO Series 3 Year Warranty   Polk Audio, Inc. warrants the original purchaser only This Warranty does not include service or parts to   that this Polk Audio Polk/MOMO Product (the   Product) will be free from defects in materials and   workmanship for a period of (3) three years from the   date of original retail purchase from a Polk Audio   Authorized Dealer. However, this warranty will auto-   matically terminate prior to the expiration of the (3)   three year period if the original retail purchaser sells   or otherwise transfers the Product to any other party.   The original retail purchaser shall herein after be   referred to as “you.” To allow Polk Audio to offer the   best possible warranty service, please fill out the   Product Registration Card(s) and send them to the   Factory at the address provided in the Registration   Card within (10) ten days of the date of purchase.   repair damage caused by accident, disaster, misuse,   abuse, negligence, inadequate packing or shipping   procedures, commercial use, voltage inputs in excess   of the rated maximum of the unit, cosmetic appear-   ance of the cabinetry not directly attributable to   defects in materials or workmanship, or service,   repair, or modifications of the Product which has   not been authorized or approved by Polk Audio.   This Warranty is in lieu of all other expressed   Warranties. If this Product is defective in materials   and workmanship as warranted above, your sole rem-   edy shall be repair or replacement as provided above.   In no event will Polk Audio, Inc. be liable to you for   any incidental or consequential damages arising out   of the use or inability to use the Product, even if Polk   Audio, Inc. or a Polk Audio Dealer has been advised   of the possibility of such damages, or any other   claim by any other party. Some states do not allow   the exclusion or limitation of consequential damages,   so the above limitation and exclusion may not apply   to you. This Warranty gives you specific legal rights   which may vary from state to state.   Defective Products must be shipped, together with a   proof of purchase, prepaid insured to the Authorized   Polk Audio Dealer from whom you purchased the   Product, or to Polk Audio, 2550 Britannia Blvd.,   Suite D, San Diego,CA 92154. Products must be   shipped in the original shipping container or its   equivalent; in any case the risk of loss or damage   in transit is to be borne by you. If, upon examination   at the Factory or Polk Audio Authorized Dealer it is   determined that the unit was defective in materials   or workmanship at any time during the Warranty   period, Polk Audio or the Polk Audio Dealer will, at its   option, repair or replace this Product at no additional   charge, except as set forth below. All replaced parts   and Products become property of Polk Audio.   Products replaced or repaired under this Warranty   will be returned to you, within a reasonable time,   freight prepaid.   This warranty applies only to Products purchased in   the United States of America, its possessions, and U.S.   and NATO armed forces exchanges and audio clubs.   The Warranty terms and conditions applicable to   Products purchased in other countries are available   from the Polk Audio Authorized Distributors in   such countries.   8 1 A M E R I C A N P O W E R , I T A L I A N F I N E S S E   P O L K A U D I O   / M O M O D E S I G N   5601 Metro Drive   Baltimore, Maryland 21215   (800) 377-7655   http://w w w .polkaudio.com   http://w w w .polkmomo.com   “Polk,” “Polk Audio,” “The Speaker Specialists” and “Dynamic Balance” are registered   trademarks of Polk Investment Corporation used under license by Polk Audio Incorporated.   “MOMO” is a registered trademark of MOMO Design, Italy.   |