K-ARRAY Vyper-KV Ultra Flat Aluminum Line Array Element

IMPORTANT SAFETY INSTRUCTIONS

• CAUTION RISK OF NOT OPE SHOCK
• ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
• CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

WARNING Failure to follow these safety instructions could result in fire, shock or other injury or damage to the device or other property.

General heed and warnings

• Read these instructions.
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water.
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat
• Do not defeat the safety purpose of the polarized or grounding plug. A polarized plug has two blades with one wider than the other. A grounding plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Only use attachments/accessories specified by the manufacturer.
• Protect the power cord from being walked on or pinched particularly at the plugs, convenience receptacles, and at the point where they exit from the apparatus.
• Clean the product only with a soft and dry fabric. Never use liquid cleaning products, as this may damage the product’s cosmetic surfaces.
• Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Avoid placing the product in a location under direct sunlight or near any appliance that generates UV (Ultra Violet) light, as this may change the product surface finishing and cause a change in color.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
• CAUTION: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
• WARNING: Only use attachments/accessories specified or provided by the manufacturer (such as the exclusive supply adapter, battery, etc.).
• Before turning the power on or off for all devices, set all volume levels to a minimum.
  • This apparatus is intended for professional use. Installation and commissioning may only be carried out by qualified and authorized personnel.
  • Use only speaker cables for connecting speakers to the speaker terminals. Be sure to observe the amplifier’s rated load impedance particularly when connecting speakers in parallel. Connecting an impedance load outside the amplifier’s rated range can damage the apparatus.
• K-array cannot be held responsible for damage caused by improper use of the loudspeakers.
• K-array will not shoulder any responsibilities for products modified without prior authorization.

CE Statement
K-array declares that this device is in compliance with applicable CE standards and regulations. Before putting the device into operation, please observe the respective country-specific regulations!

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Radiation Exposure Statement
This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. this device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.

CAUTION! Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

CE Statement

This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions:

• this device may not cause interference, and
• this device must accept any interference, including interference that may cause undesired operation of the device.

The device meets the exemption from the routine evaluation limits in section 2.5 of RSS 102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on RF exposure and compliance. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.

Trademark Notice

• All trademarks are the property of their respective owners.

Thank you for choosing this K-array product! To ensure proper operation, please carefully read the owner’s manuals and safety instructions before using the products. After reading this manual, be sure to keep it for future reference. Should you have any questions about your new device please contact K-array customer service at support@k-array.com or contact the official K-array distributor in your country. The Vyper line consists of the flattest speakers in the K-array portfolio and are housed in an elegant and resistant 2-cm-deep aluminum frame that features closely-spaced transducers which boast Pure Array Technology. With closely-spaced cone drivers, the Vyper line demonstrates true line array characteristics: phase coherence, low distortion and focused listening in both the near field and at a distance from the speaker. This Pure Array Technology allows the Vyper to cover venues uniformly and provide long throw. For easier use and integration with other speakers or amplifiers, the Vypers feature selectable impedance and when paired with a subwoofer from the Rumble or Truffle line and powered by a Kommander amplifier with specific presets optimized for the Vyper, the loudspeaker assures excellent coverage of the entire musical frequency range.

Unpacking

Each K-array loudspeaker is built to the highest standard and thoroughly inspected before leaving the factory. Upon arrival, carefully inspect the shipping carton, then examine and test your new amplifier. If you find any damage, immediately notify the shipping company. Check that the following parts are supplied with the product.

• A. 1x Vyper-KV passive line array loudspeaker for either surface or in-wall installation.
• B. 2x IP65 connector sealing plates*
• C. 2x two terminals Euroblock 2,5/ 2-ST-5,08 **
• D. 2x Reclosable fastener adhesive pairs (surface mounting versions only)
• E. 1x Small magnet
• F. 1x Quick guide

Note

• 1x IP65 connectors sealing plate in Vyper-KV25 II and Vyper-KV25R II
• 1x two terminals Euroblock 2,5/ 2-ST-5,08 in Vyper-KV25 II and Vyper-KV25R II

Positioning

The Vyper-KV loudspeakers perform best when positioned on a planar surface such as a wall. Find the proper installation height, aiming the loudspeaker at the listening position. We suggest the following configurations:

In order to take advantage of the narrow directivity of the line array configuration, for usual application it is recommended to install the Vyper-KV loudspeakers vertically. The only exception to this rule-of-thumb is about the Vyper- KV52F II and Vyper-KV52FR II featuring a wide dispersion in both directions.

Quick Start Guide

Surface mounting installation

• Vyper-KV25 II, Vyper-KV52II,
• Vyper-KV52F II, Vyper-KV102 II

Follow these instructions to properly install the loudspeaker:

1. Unpack the loudspeaker and set the accessories aside for later use;
2. Find the proper position on the mounting surface: position the cutout template (drawn on the loudspeaker package) and mark the surface accordingly;
3. Drill the holes for screwing the loudspeaker to the surface or ensure that the mounting surface is flat for sticking the loudspeaker with the provided reclosable fasteners;
4. Set the proper loudspeaker load impedance with respect to the amplifier in use;
5. Set the proper speaker cable length for connecting the loudspeaker to the amplifier;
6. In application demanding IP65 devices,
   • let the speaker cable passing through the IP65 connector sealing plate’s rubber;
   • remove the connector plates from the loudspeaker back panel;
7. Connect the speaker cable to the two terminals Euroblock 2,5/ 2-ST-5,08 connector, taking care to respect the signal polarity;
8. Plug the speaker cable to the signal connector on one loudspeaker end;
9. In application demanding IP65 devices, screw both IP65 connector sealing plates on the loudspeaker back panel;
10. Steadily fix the loudspeaker to the surface with the screws or stick the loudspeaker on place with the reclosable fasteners.
11. Switch on the music and enjoy!

In-wall mounting installation

• Vyper-KV25R II, Vyper-KV52R II,
• Vyper-KV52FR II, Vyper-KV102R II

Follow these instructions to properly install the loudspeaker:

• A. Unpack the loudspeaker and set the accessories aside for later use;
• B. Find the proper position on the mounting surface: position the cutout template (drawn on the loudspeaker package) and mark the surface accordingly;
• C. Drill a pilot hole, then cut the surface all of the way around the drilling template: take care to shape the recess to perfectly fit the loudspeaker;
• D. Set the proper loudspeaker load impedance concerning the amplifier in use;
• E. Set the proper speaker cable length for connecting the loudspeaker to the amplifier;
• F. In an application demanding IP65 devices,
  • let the speaker cable pass through the IP65 connector sealing plate’s rubber;
  • remove the connector plates from the loudspeaker back panel;
• G. Connect the speaker cable to the two terminals Euroblock 2,5/ 2-ST-5,08 connector, taking care to respect the signal polarity;
• H. Plug the speaker cable to the signal connector on one loudspeaker end;
• I. In an application demanding IP65 devices, screw both IP65 connector sealing plates on the loudspeaker back panel;
• J. Unfold the metallic clips on the loudspeaker back panel and gently insert them into the recess;
• K. Let the loudspeaker slide into the recess and set it in place.
• L. Switch on the music and enjoy!

Wiring

For easy connectivity and link, the Vyper-KV line array loudspeakers feature Euroblock 2 pin inlets, namely for Phoenix 2,5/ 2-ST-5,0 flying plug. Caution must be taken when connecting the loudspeaker cable to the flying connector in order to match the signal polarity: please refer to the label on the rear panel of the loudspeaker for the correct matching. For a cable run of up to 5 m (16.4 ft) use a wire gauge of 0,75 mm2 (18 AWG) minimum. For longer cable runs a wider gauge is recommended.

1. Set the proper speaker cable length for connecting the loudspeaker to the amplifier;
2. Connect the speaker cable to the two terminal connectors, taking care to respect the signal polarity;
3. Set the proper impedance value according to the loudspeaker configuration and amplifier model.
4. Plug the speaker cable to the signal connector on one loudspeaker end;

In applications demanding IP65 devices:

• A. Cut a small aperture on the IP65 connector sealing plate’s rubber;
• B. Let the speaker cable pass through the IP65 connector sealing plate’s rubber;
• C. Connect the speaker cable to the two terminal connectors, taking care to respect the signal polarity;
• D. Set the proper impedance value according to the loudspeaker configuration and amplifier model.
• E. Remove the connector plates from the loudspeaker back panel;
• F. Screw both IP65 connector sealing plates on the loudspeaker back panel.

Connecting Multiple Vyper-KV
The top and the bottom connectors of a Vyper-KV loudspeaker (the only exception is the Vyper-KV25 II / Vyper-KV25R II featuring a single input connector) are parallel so that the input signal can pass through the Vyper-KV loudspeaker and can be used to fed another Vyper-KV in parallel with the former loudspeaker. This wiring arrangement is useful in distributed loudspeaker systems and when stacking multiple Vyper-KV loudspeakers in longer line array configurations.

• Vyper-KV for in-wall installation are not designed to be stacked for making longer line arrays.

A proper jumper wire must be prepared to let the signal exit the former loudspeaker and enter the paralleled loudspeaker preserving the signal polarity.

• Always check the loudspeaker impedance before connecting the amplifier.
• The number of Vyper-KV loudspeakers that can be connected in parallel to the same amplifier channel depends on the loudspeaker model, loudspeaker impedance and amplifier power. The following table shows the available impedance values for every Vyper-KV model.

The parallel connection lowers the total load impedance: caution must be taken to maintain the load impedance of the paralleled loudspeakers above the amplifier’s minimum loading impedance. Please refer to the Amplifier-to-Speaker matching table available on K-array website for details about the maximum number of loudspeakers that can be driven by a single amplifier channel.

Before connecting the loudspeaker cable to the amplifier

• ensure the loudspeaker impedance matches the amplifier channel rated load impedance, especially when connecting multiple loudspeakers in parallel;
• load the dedicated loudspeaker factory preset on the amplifier DSP.
• Before driving the loudspeakers ensure to load the proper loudspeaker factory preset on the Kommander-KA amplifier

Installation

The Vyper-KV loudspeakers are available in two versions:

• The Vyper-KV designed for surface mounting installation features threaded M5 through holes.
• The Vyper-KV designed for in-wall installation feature spring clips for being easily retained into the recess.
• A drilling template is printed inside the package. Follow these operating instructions to ensure a proper installation.

Surface mounting installation

1. Cut the drilling template out of the packaging box.
2. Lay the drilling template on the mounting surface taking care to properly align it vertically.
3. Drill on the surface the proper number of holes.
4. Use the small magnet to remove the grill from the loudspeaker.
5. Set the proper loudspeaker impedance.
6. Connect the loudspeaker to the wiring.
7. Uses dowels and screws to fix the loudspeaker to the surface.
8. Reposition the grill on the loudspeaker.

Alternatively, use the drilling template to mark the surface and install the loudspeaker with the reclosable fastener adhesive pairs.

In-wall installation

• A. Cut the drilling template out of the packaging box.
• B. Lay the drilling template on the mounting surface taking care to properly align it vertically.
• C. Mark the cutting edge of the recess on the surface.
• D. Cut the surface taking care of respecting the shape tolerance for fitting the loudspeaker accordingly. Ensure that the depth of the recess is wide enough to fit the loudspeaker and its spring clips, namely deeper than 83 mm (3.27 in).
• E. Set the loudspeaker cable wirings and head them with the connector matching the loudspeaker signal polarity.
• F. Set the proper loudspeaker impedance.
• G. Connect the loudspeaker to the wiring.
• H. Gently unfold the spring clips and insert the loudspeaker on the recess.

Service

To obtain service:

1. Please have the serial number(s) of the unit(s) available for reference.
2. Contact the official K-array distributor in your country: find the Distributors and Dealers list on K-array website. Please describe the problem clearly and completely to Customer Service.
3. You will be contacted back for online servicing.
4. If the problem cannot be resolved over the phone, you may be required to send the unit in for service. In this instance, you will be provided with an RA (Return Authorization) number which should be included on all shipping documents and correspondence regarding the repair. Shipping charges are the responsibility of the purchaser.

Any attempt to modify or replace components of the device will invalidate your warranty. Service must be performed by an authorized K-array service center.

Cleaning
Use only a soft, dry cloth to clean the housing. Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia, or abrasives. Do not use any sprays near the product or allow liquids to spill into any openings.

Mechanical drawings

Vyper-KV25 II

Vyper-KV25R II

Vyper-KV52 II / Vyper-KV52F II

Vyper-KV52R II / Vyper-KV52FR II

Vyper-KV102 II

per-KV102R II

Technical Specifications

Vyper-KV25 II 

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV25R II

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV52II 

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV52R II

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV52FII 

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV52FR II

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV102II 

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Vyper-KV102R II

1. With dedicated preset.
2. Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.

Designed and Made in Italy K-ARRAY surl Via P. Romagnoli 17 | 50038 Scarperia e San Piero – Firenze – Italy ph +39 055 84 87 222 | info@k-array.com www.k-array.com.

Documents / Resources

K-ARRAY Vyper-KV Ultra Flat Aluminum Line Array Element [pdf] User Guide Vyper-KV, Vyper-KV Ultra Flat Aluminum Line Array Element, Ultra Flat Aluminum Line Array Element, Aluminum Line Array Element, Array Element

References

• User Manual