Section 1—Introduction .
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S e ct i o n 1 . 1 — M e z z o C o n v e r g e n t S y n e r g y I n t r o d u ct i o n Section 1.1—Mezzo Convergent Synergy Introduction From all of us at Wilson Audio Specialties—thank you for purchasing the Mezzo Convergent Synergy loudspeaker. The information contained within the pages of this manual . will inform and instruct on the proper assembly, set up, and long term care of your Mezzo Convergent Synergy.
Mezzo Convergent Synergy Owner’s Manual density and truthfulness, and dynamic clarity to appreciate the resulting vast improvement in the midrange over other designs. The original version of Wilson Audio’s Convergent Synergy tweeter was developed in conjunction with the Alexandria XLF. It now makes its debut in a new custom form, spe - . cifically designed to meet the needs of the Mezzo Convergent Synergy’s mission.
S e ct i o n 1 . 1 — M e z z o C o n v e r g e n t S y n e r g y I n t r o d u ct i o n the module is emblematic of this effort, as is the shape and material of the energy-absorbing pad that surrounds the tweeter. Sasha W/P Series 2 woofer. The Mezzo Convergent Synergy sources its woofer directly from the Sasha W/P Series 2. The speed, dynamic alacrity, and tunefulness that are . all distinctive features of the latest Sasha are in evidence here in similar proportions.
Mezzo Convergent Synergy Owner’s Manual relationships. With current technology, no single transducer can reproduce the full range of music at realistic sound pressure levels while maintaining consistent dispersion. The solution is the multiple driver array, with specific drivers dedicated to various portions of the frequency range. Multiple drivers introduce their own set of problems. A challenge .
S e ct i o n 1 . 1 — M e z z o C o n v e r g e n t S y n e r g y I n t r o d u ct i o n at both near and far listening positions. With Mezzo Convergent Synergy, Wilson Audio takes this concept a logical step further, addressing the issue of optimal driver dispersion in the large cabinet system. Ideal driver dispersion for both near and far listening positions requires the drivers be adjust- . F igure 1 a - T ypical loudspeakers exhibit less than optimum propagation delay and dispersion characteristics .
Mezzo Convergent Synergy Owner’s Manual able. With the Mezzo Convergent Synergy, you and others you listen with, will hear your favorite recordings and soundtracks with true time coherency, full frequency range, unfettered dynamics, and vanishingly low distortion. The improvement in realism wrought by . Mezzo Convergent Synergy is delight fully revolutionary.
S e c t i o n 2 — Un c r at i n g .
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S e ct i o n 2 . 1 — U n c r a t i n g the Mezzo Convergent Synergy Section 2.1—Uncrating the Mezzo Convergent Synergy Initial Check The Mezzo Convergent Synergy is shipped in a wooden crate. Upon receiving your . Mezzo Convergent Synergy, please check the crate’s condition. If the crate is damaged, please report it to the shipping company immediately for insurance verification.
Mezzo Convergent Synergy Owner’s Manual Mezzo Convergent Synergy Crate 1—Owner’s Manual 1—Warranty Registration (included in the manual) .
S e ct i o n 2 . 2 — C r a t e C o n t e n t C h e c k l i st 2—3/8” - 16 x 2” Set Screws 1—Blue Polishing Cloth 1 – Caster Wrench 1—9/16” Wrench .
Mezzo Convergent Synergy Owner’s Manual 4—3/8” - 16 x 1 1/2” Socket Head Cap Screws 4—3/8” x 7/8” Stainless Steel Flat Washers 1—5/16” Long Arm Allen Wrench 1—Polishing Cloth 20 .
S e c t i o n 3 — I n Yo u r R o o m .
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S e ct i o n 3 . 1 — T h e W i l so n A u d i o S e t u p P r oc e d u r e Section 3.1—The Wilson Audio Setup Procedure You are surely excited about setting up your Mezzo Convergent Synergy and doing some listening, but before you begin, we would like to discuss some of the important room . acoustical information that will help you set up your loudspeakers properly.
Mezzo Convergent Synergy Owner’s Manual volume, project your voice out into the room. Your voice will have an overly heavy, “chesty” quality because of your proximity to the rear wall. 2. While speaking, slowly move out into the room, progressing in a direction parallel to the sidewall. It is helpful to have another listener seated in the listening position to assist you during this process. Listen to how your voice “frees up” from the added bass energy imparted by the rear wall boundary.
S e ct i o n 3 . 2 — R oom A co u st i cs obvious interaction with the opposite wall in front of you and mark this point with tape. The four pieces of tape now form a rectangle that establishes the Zone of Neutrality for the loudspeaker located on that side of the room. Using the four marks as your guide, tape an outline to define the boundaries of the rectangle. . 6. Repeat this process for each speaker location individually. These are your Zones of Neutrality, one for each channel.
Mezzo Convergent Synergy Owner’s Manual • It adds harshness to the upper midrange and treble by storing time-domain smearing energy. • It destroys the delicate phase relationships, which help to establish an accurate soundstage. . Slap echo (see Figure 3) is a common acoustical problem in the typical domestic listening room because most of these rooms have walls with a hard, reflective nature, only occasionally interrupted by curtains, wall art, or drapes.
S e ct i o n 3 . 2 — R oom A co u st i cs tive materials that can be used to ameliorate slap echo: • Illbruck Sonex® • Air duct board . • Large ceiling to floor drapes • Carpeting to wall surfaces In many domestic listening environments, heavy stuf fed furnishings reduce slap echo somewhat. Unfortunately, their ef fectiveness is not predictable. Dif fusers are sometimes also used to very good subjective ef fect, particularly in quite large rooms.
Mezzo Convergent Synergy Owner’s Manual found at certain discreet locations in the room. These locations dif fer according to room dimension and size. A room generating severe standing waves creates dif ficulty in setup. In these rooms, the speaker will sound radically dif ferent as it is moved around. The ef fects of standing waves on a loudspeaker’s performance are primarily in the areas listed. • Tonal balance .
S e ct i o n 3 . 3 — R e so n a n c e s Comb Filter Effect The “comb filter” ef fect is a special type of standing wave noticeable primarily at higher frequencies and shorter wavelengths. . Acoustical comb filtering occurs when sound from a single source, such as a loudspeaker, is directed toward a microphone or listener from a distance. The first sound to reach the microphone is the direct sound, followed by a delayed, reflected sound.
Mezzo Convergent Synergy Owner’s Manual Structural Resonance Structural resonances are familiar to most people as buzzes and rattles, but this type of resonance usually only occurs at extremely high volume levels and is usually masked by . the music. In many wood frame rooms the most common type of structural resonance prob lem is “booming” of walls and floors. You can test for these very easily by tapping the wall with the palm of your hand or stomping on the floor.
S e ct i o n 3 . 4 — Y o u r R oom oration. Custom designed bass traps, such as perforated Helmholtz resonators, provide the greatest degree of low frequency control. Section 3.4—Your Room Room Shapes . Standing waves are pressure waves propagated by the interaction of sound and op posing parallel walls. This interaction creates patterns of low and high acoustical pressure zones that accentuate and attenuate particular frequencies. Those frequencies are dependent on room size and dimension.
Mezzo Convergent Synergy Owner’s Manual . F igure 4 – P ossible L oudspeaker P lacement within V arious R oom S hapes should fire from the end of the leg (short wall) toward the L, or they should be along the longest wall. In this way, both speakers are firing the same distance to the back wall. The asymmetry of the walls in L-shaped rooms resists the buildup of standing waves (see Figure 4).
S e ct i o n 3 . 4 — Y o u r R oom from a room boundary will diminish the sonic results of your listening. Speaker Orientation Speaker placement and orientation are two of the most important considerations in . obtaining superior sound. The first thing you need to do is eliminate the sidewalls as a sonic influence in your system. Speakers placed too close to the sidewalls will suf fer from a strong primary reflection.
Mezzo Convergent Synergy Owner’s Manual • Mounted on a stand with longer spikes in the front of the stand and shorter spikes in the back, allowing the stand and speaker to be rotated up toward the listener. Each of these options allow for some fine-tuning of the Mezzo Convergent Synergy . placement. A poor placement of the Mezzo Convergent Synergy will hamper its integration with the rest of the system.
S e ct i o n 3 . 4 — Y o u r R oom tecture of the room. However, if you have some flexibility in locating your Surrounds, we suggest that you use the Wilson Setup Procedure (WASP) to find the Zone of Neutrality. Be sure to listen for room modes and frequency response peaks or dips. .
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Section 4—Initial Setup .
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S e ct i o n 4 . 1 — I n i t i a l S e t u p Note: Before setting up the Mezzo Convergent Synergy, study carefully Section 3, “In Your Room.” It provides valuable information on determining the ideal room location for your speakers. Section 4.1—Initial Setup Preparation .
Mezzo Convergent Synergy Owner’s Manual O ption 1 (N o S pacers ) A llen K ey E nd of S etscrew . 3/4 I nch S etscrew S pike O ption 2 (1-2 S pacers ) N ut D iode 2 I nch S etscrew O ptional S pacers 2 S pacers F igure 5 – M ezzo C onvergent S ynergy S pikes A ssembly D iagram mounted above the listening ear height, it will need to be raised more in the back so the speaker is firing down toward the listener. Af ter determining the required rotation for the Mezzo Convergent Synergy, Sections 4.
S e ct i o n 4 . 2 — M e z z o C o n v e r g e n t S y n e r g y S p i k e s Assembly 1. Remove the threaded inserts from the bottom of the Mezzo Convergent Synergy. . 2. Insert threaded set screws into the bolt holes located on the bot tom of your Mezzo with the Allen head facing out. 3. Screw the acoustical diode onto the bolt until it fits snugly against the bottom of the Mezzo Convergent Synergy. Do not overtighten. 4. Screw the spike (with nut) all the way in until it just touches the bolt.
Mezzo Convergent Synergy Owner’s Manual 7. Using the 9/16” combination wrench, tighten the nut snug against the diode to prevent the spike assembly from coming loose. T weeter S lides B ack and F orth . 8. If required, place the corresponding number of spacer discs over the bolt. 1/4-20 S ocket H ead C ap screw Section 4.
S e ct i o n 4 . 4 — S e t u p # 1 M e z z o C o n v e r g e n t S y n e r g y on F l oo r ing location. The Mezzo has been optimized for use with its purpose-built stand. When you mount the Mezzo Convergent Synergy in most other locations you will begin to see more boundary interactions, which may alter the performance of the loudspeaker. Nevertheless, the Mezzo Convergent Synergy will certainly out-perform any other center-type .
Mezzo Convergent Synergy Owner’s Manual (see Figure 8). The default rotation is set by using a combination of a spike, nut, and a S pacers ( use only if indicated in table ) D iode , S pike , and N ut F igure 8 – I nstalling the . S pike and N ut O nly M ezzo C onvergent S ynergy S pikes diode. If required, additional rotation can be achieved by using the provided 1/2” spacers between the diode and the bottom of the cabinet (see Figure 8). The amount of rotation depends on your listening position.
S e ct i o n 4 . 5 — S e t u p # 2 M e z z o C o n v e r g e n t S y n e r g y on a S ta n d prietary high density composite X-material. While very hard, X-material is easily cross threaded when installing the spikes. Be careful that the spike thread is engaging prop erly into the bottom. T hreaded S pikes F igure 9 – I nstalling • . the M ezzo C onvergent S ynergy S tand S pikes 4. Carefully lift the Mezzo Convergent Synergy into the desired location and set it down.
Mezzo Convergent Synergy Owner’s Manual . A nchor B olt F igure 10 – B olting the (See Figure 9). M ezzo C onvergent S ynergy to the S tand Note: Do not tighten the nut at this time. Wait until the fine-tuning has been completed for the entire system and the speaker has been leveled. Note: Four small brass disks have been provided for use as spike pads. Place these under the spikes to protect the finish of your floors. 3.
S e ct i o n 4 . 5 — S e t u p # 2 M e z z o C o n v e r g e n t S y n e r g y F igure 11 – L ocating the . S et S crew 4 A llen K ey E nd on a S ta n d places of S et S crew S et S crews 4. Bolt the Mezzo Convergent Synergy to the stand using the four 3/8 – 16 threaded socket head cap screws and washer provided (see Figure 10). Note: Do not overtighten the bolts; a snug fit is all that is required to secure the Mezzo Convergent Synergy to the stand. 5. Turn to Section 4.
Mezzo Convergent Synergy Owner’s Manual The Mezzo mounts on top of the Hourglass stand, but does not bolt to it. The setscrews sit inside the holes in the top of the stand. Section 4.6—Set Up #3 Mezzo Convergent Synergy on Custom Stand or Shelf . The speaker should be rotated so that the midrange drivers are firing just below the listening position. Once you have made and mounted the custom bracket, setup the Mezzo Convergent Synergy as follows: 1. Lay the Mezzo Convergent Synergy onto its side. 2.
S e ct i o n 4 . 7 — C o n n e ct i n g S p e a k e r to Amplifier Carefully lif t the Mezzo Convergent Synergy and set the threaded setscrews into the 4 mounting holes located on the top of the mounted custom shelf. 3. Using the provided 3/8 – 16 nut, bolt the Mezzo Convergent Synergy to the mounting bracket. . 4. Turn to Section 4.7 for final assembly instructions. Note: Be careful when loosening or tightening the screws that you do not damage the painted finish. Section 4.
Mezzo Convergent Synergy Owner’s Manual highest quality loudspeaker cables, particularly those designed for high frequency propagation correction and phase linearity. Beware of “zip cord” type speaker cables, which will smear the sound and limit their ef fective bandwidth. Also, do not use braided litz-type loudspeaker cables as they will cause an unnatural brightness to the sound, compromise .
S e ct i o n 4 . 7 — C o n n e ct i n g S p e a k e r to Amplifier rent speaker binding post with the silk-screened “+” above it. 5. Plug your amplifier(s) AC power cord into the wall outlet. Note: Always attempt to keep your set (LRC) of speaker cables the same length. This will ensure that the signals arrive at each speaker in the proper time frame, by traveling the same distance to each speaker. .
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S e c t i o n 5 — T u n i n g a n d Vo i c i n g .
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S e ct i o n 5 . 1 — F i n a l T u n i n g and Voicing Section 5.1—Final Tuning and Voicing This loudspeaker placement method was developed by David A. Wilson, for Wilson Audio Specialties, Inc., to find optimum loudspeaker locations in any given room within . one hour. Participating in numerous audio/multi-channel/home theater shows with very dif ferent and dif ficult acoustic environments necessitated this procedure.
Mezzo Convergent Synergy Owner’s Manual Section 5.2—Left and Right Channels Determining Front to Back Distance The proper setup of the lef t and right channels is crucial for optimum system perfor- . mance. If these speakers are not set up correctly, the entire system will suf fer from poor integration. Please follow these steps carefully: • Place the speaker in an appropriate location relative to your screen and listening area. (Leave the Mezzo Convergent Synergy on the caster for this process.
S e ct i o n 5 . 2 — L e f t and Right Channels • • Find the front to back location where the bass is tight, dynamics are correct, image is well-focused, and you find the best soundstaging. Mark this as your final front to back location. Determining Side to Side Distance . The distance the speakers are from the side walls is very important. This distance determines the amount of comb filtering you will hear. In ef fect, you are “tuning” the comb filter interaction between the speaker and the wall.
Mezzo Convergent Synergy Owner’s Manual Section 5.3—Integrating the Mezzo Convergent Synergy into Surround System Note: Many processors of fer a setup guide that steps you through the integration of each of the speakers, specifically, setting speaker distances, delays, and phase rotation. These adjustments are made via internal electrical adjustments. We have found that actual geometric changes, that is, moving the speaker location and rotation, of fer improved results when integrating speakers.
S e ct i o n 5.3—I n t e g r at i n g t h e M e z z o C o n v e r g e n t S y n e r g y i n to S u r r o u n d S y st e m sources that are unfocused and located at each speaker playing. • With the Mezzo Convergent Synergy spiked, put on a multi-channel audio track or movie scene with which you are familiar. . • Play the selection and listen for the integration with the main speakers. As the audio moves across the three front speakers, listen for a smooth transition from one speaker to the next.
Mezzo Convergent Synergy Owner’s Manual the Mezzo Convergent Synergy to be raised about 1”. This is because the ef fects of combfiltering are more noticeable the further you are away from the Mezzo Convergent Synergy. This comb-filtering reveals itself as a slight nasal sound in the voice. If you notice this in the sound, you should raise the front spikes of your Mezzo Convergent Synergy. This can .
S e ct i o n 5.3—I n t e g r at i n g t h e M e z z o C o n v e r g e n t S y n e r g y i n to S u r r o u n d S y st e m nel will have good imaging characteristics, will be seamlessly blended, and should be just as transparent as the front channels. • Adjust the rotation of the Surround channel until you find the best integration. . Note: The Surround channel rotates on the upper two spikes. Examine carefully this ro tation and the mounting bracket before trying to adjust the angle of rotation.
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Section 6—Care of the Finish .
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S e ct i o n 6 . 1 — C a r e of the Finish Section 6.1—Care of the Finish The Mezzo Convergent Synergy loudspeaker is hand painted with WilsonGloss™ paint and hand polished to a high luster. While the finish seems quite dry to the touch, final cur- . ing and complete hardening takes place over a period of several weeks. Dusting the Mezzo Convergent Synergy It is important that the delicate paint finish of the Mezzo Convergent Synergy be dusted carefully with the dust cloth, which has been provided.
Mezzo Convergent Synergy Owner’s Manual best done by using the round brush attachment on a vacuum cleaner hose. Gently vacuum the front surface of the grill. Be careful not to apply too much pressure. Do not use a hard plastic at tachment against the grill. The grill cloth is stretched tightly over the grill frame. Too much pressure or use of a hard plastic attachment could cause the grill material to tear, especially in the corners. .
S e ct i o n 6 . 3 — D e p t h of Design exotic materials chosen for their specific performance attributes relevant to dif ferent portions of the enclosure. The Mezzo Convergent Synergy is constructed using non-resonant, high-density, composites which are then cross-braced to further reduce cabinet resonance. Each of these . composites meets and exceeds the highest of ANSI test standards for its use, while of fering very tight tolerances, high hardness, uniform density, and dimensional stability.
Mezzo Convergent Synergy Owner’s Manual anywhere in the world. Finally, like all Wilson products, the Mezzo Convergent Synergy is hand-craf ted with meticulous attention to detail, with an unwavering commitment to excellence. Thus, the Mezzo Convergent Synergy will impart to her owner beauty and pleasure for many years to come. 68 .
Section 7—Troubleshooting .
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S e ct i o n 7 . 1 — T r o u b l e s h oot i n g : Section 7.1—Troubleshooting: Center channel is not operating: Check the source. . interconnects from the Check the connections on the speaker cables, both at the amplifier and speaker ends. Watch especially for c o n n e c t o r s t o u c h i n g e a c h o t h e r. Driver out or not playing af ter connections have been verified: If you have found a driver with no output, turn off your amp and disconnect the speaker cable.
Mezzo Convergent Synergy Owner’s Manual Check to see if your speaker cables are properly connected to the binding posts. Look for frayed ends, loose connections, or a conductor contacting the amplifier chassis. . Tu r n t h e a m p l i f i e r o f f a n d d i s c o n n e c t it from the AC wall outlet. Disconnect the preamplifier leads to the a m p l i f i e r. N o w t u r n o n t h e a m p l i f i e r.
S e ct i o n 7 . 1 — T r o u b l e s h oot i n g : If the problem persists: Call the dealer where you bought your a m p l i f i e r . Yo u a p p e a r t o h a v e a p r o b lem with this component. .
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S e c t i o n 8 — R e pa i r P r o c e d u r e s .
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S e ct i o n 8 . 1 — R e p a i r P r oc e d u r e s Section 8.1—Repair Procedures Replacing an Open Resistor The Mezzo Convergent Synergy has a resistor that will protect the tweeter, in most . cases, if the speaker is over driven during normal operation. This is done so that the driver is not damaged. Replace a blown resistor as follows: 1. Determine which driver is not playing music. 2.
Mezzo Convergent Synergy Owner’s Manual 4. Insert the leads of the new resistor through the binding post hole. Retighten the binding post. 5. At tach the new resistor to its heatsink using the 4- 40 Allen bolt. . 6. Re-attach the resistor access cover to the enclosure, making sure not to over tighten the screws. Replacing a Bad Driver If you believe that a driver is blown, make sure that you have tried replacing the pro tective resistor before you replace the driver.
S e ct i o n 8 . 1 — R e p a i r P r oc e d u r e s 7. Place the driver into the machined recess. 8. Replace the screws, tightening them to 30 inch/pounds of torque. Note: The bolts used to attach the drivers to the baffle are tightened at the factory using a digital torque wrench. The recommended torque for the allen-head bolts for each of the drivers is 35 inch-lb. The Maximum bolt torque is 37 inchlb. .
Mezzo Convergent Synergy Owner’s Manual .
S e c t i o n 9 — S pe c i f i c at i o n s .
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S e ct i o n 9 . 1 — M e z z o C o n v e r g e n t S y n e r g y S p e c i f i c a t i o n s Section 9.1—Mezzo Convergent Synergy Specifications Tweeter Enclosure: One – 1” (2.54 cm), Doped Silk Fabric Dome Midrange Enclosure: One – 7” (17.78 cm) Cellulose/Pulp Composite . Woofer Enclosure: Two – 8 inches (20.32 cm) Impedance: 4 ohm – minimum 2.8 ohms @ 21 Hz Sensitivity: 96 dB @ 1 watt @ 1 meter @ 1 kHz Frequency Response: 20 Hz–28 kHz +/- 3 dB room average resp. [RAR] Height: 17 3/8 inches (44.
Mezzo Convergent Synergy Owner’s Manual Section 9.2—Mezzo Convergent Synergy Dimensions .
S e ct i o n 9 . 3 — H o u r g l a ss S t a n d D i m e n s i o n s Section 9.3—Hourglass Stand Dimensions .
Mezzo Convergent Synergy Owner’s Manual Section 9.4—Mezzo Convergent Synergy on Hourglass Stand Dimensions .
S e ct i o n 9 . 5 — C o l u m n S t a n d D i m e n s i o n s Section 9.5—Column Stand Dimensions .
Mezzo Convergent Synergy Owner’s Manual Section 9.5—Mezzo Convergent Synergy Impedance Curve .
S e c t i o n 1 0 — T i m e - A l i g n m e n t Ta b l e s .
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Table 1—For Placement on F l oo r Table 1—For Placement on Floor Measured Listening Distance (inches) Measured Ear Height (inches) 36 38 40 42 44 60 4 † 2.5 † 3 ‡ na na 64 2.5 * 3.5 † 4.5 ‡ 3 ‡ na 68 4 * 4.5 † 3 † 4 ‡ 2.5 ‡ 72 5 * 3.5 * 4.5 † 3 † 4 ‡ 76 5.5 * 4.5 * 3 * 4 † 2.5 † 80 2.5 5.5 * 4 * 2.5 * 3.5 † 84 3 6 * 4.5 * 3.5 * 4.5 † 88 3.5 2.5 5.
Mezzo Convergent Synergy Owner’s Manual Table 2—For Placement on Stand Measured Listening Distance (inches) Measured Ear Height (inches) 92 36 38 40 42 44 46 48 50 52 64 3 1 na na na na na na na 68 4 2.5 0.5 na na na na na na 72 5 3.5 2 1 na na na na na 76 5.5 4 2.5 1 na na na na na 80 6.5 5 3.5 2 1 na na na na 84 7 5.5 4 2.5 1.5 0.5 na na na 88 7.5 6.5 5 3.5 2 1 na na na 92 8 6.5 5.5 4 2.5 1.5 0.
S e c t i o n 1 1 — Wa r r a n t y I n f o r m a t i o n .
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S e ct i o n 1 2 . 1 — W a r r a n t y I n f o r m a t i o n Section 12.1—Warranty Information Limited Warranty Subject to the conditions set forth herein, Wilson Audio warrants its electronics to be . free of manufacturing defects in material and workmanship for the Warranty Period.
Mezzo Convergent Synergy Owner’s Manual a return authorization. Purchaser must pay for shipping to Wilson Audio, and Wilson Audio will pay for shipping of its choice to return the product to purchaser. A returned product must be accompanied by a written description of the defect. Wilson Audio reserves the right to modify the design of any product without obligation to purchasers of previously .
S e ct i o n 1 2 . 1 — W a r r a n t y I n f o r m a t i o n Demonstration Equipment Equipment, while used by an authorized dealer for demonstration purposes, is warranted to be free of manufacturing defects in materials and workmanship for a period of . five (5) years from the date of shipment to the dealer. Demo equipment needing warranty service may be repaired on-site or, if necessary, correctly packed and returned to Wilson Audio by the dealer at dealer’s sole expense.