Introduction to KV2 Audio Vision
At KV2 Audio, the vision is to constantly develop technologies that eliminate distortion and loss of information, providing a true dynamic representation of the source. The aim is to create audio products that absorb the listener, place them within the performance, and deliver a listening experience beyond expectations.
Important Safety Instructions
Before using your ESM Series, carefully read the applicable items of these operating instructions and the safety suggestions.
- Read all product instructions.
- Keep printed instructions; do not throw away.
- Respect and review all warnings.
- Follow all instructions.
- Clean only with a dry cloth.
- Do not block any ventilation openings.
- Install in accordance with KV2 Audio's recommended installation instructions.
- Only use accessories specified by KV2 Audio.
- Install the product only with rigging specified by KV2 Audio, or sold with the loudspeaker.
- Unplug this loudspeaker during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the loudspeaker has been damaged in any way, such as when the plug has been damaged; liquid has been spilled or objects have fallen into the loudspeaker; rain or moisture has entered the loudspeaker; the loudspeaker has been dropped; or when for undetermined reasons the loudspeaker does not operate normally.
- Do not remove front or back panels. Removal of the panel will expose hazardous voltages. There are no user serviceable parts inside, and removal may void the warranty.
- An experienced user shall always supervise this professional audio equipment.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE PANELS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
WARNING: To prevent fire or electric shock, do not expose this equipment to rain or moisture.
Safety Summary
To reduce the risk of electric shock, disconnect the loudspeaker from the AC mains before installing audio cable. Reconnect the power cord only after making all signal connections. Connect the loudspeaker to a two-pole, three-wire grounding mains receptacle. The receptacle must be connected to a fuse or circuit breaker. Connection to any other type of receptacle poses a shock hazard and may violate local electrical codes. Do not allow water or any foreign object to get inside the loudspeaker. Do not put objects containing liquid on or near the unit. To reduce the risk of overheating the loudspeaker, avoid exposing it to direct sunlight. Do not install the unit near heat-emitting appliances, such as a room heater or stove. This loudspeaker contains potentially hazardous voltages. Do not attempt to disassemble the unit. The unit contains no user serviceable parts; repairs should be performed only by factory-trained service personnel.
ESM26 - The Ultimate Compact Passive Monitor
Overview
The ESM26 is a purpose-built stage monitor with incredible clarity and presence, especially in the vocal range. It incorporates two high-quality 6" drivers and a 1.75" compression driver on a 100 x 100 degree horn flare. The ESM26 utilizes KV2's revolutionary delay line technology for optimum output and feedback rejection. A full-width bass port along the bottom of the cabinet couples with the floor to deliver bass response comparable to monitors twice its size. Measuring under 400mm wide, this small monitor takes up minimal room on stage and is ideal for visually critical applications like TV and theatre.
Application
Specifically designed as an extremely compact, low-profile passive-vocal floor monitor for:
- Live performance
- Concert venues
- Portable PA
- Fixed installations
Connection
The ESM26 features two Speakon (NL4) connectors. The connectors are interconnected in parallel to allow the "daisy chaining" of additional ESM26 units.
Diagram shows four ESM26 units, each with two Speakon (NL4) connectors. The connections are wired in parallel. Text indicates: "PARALLEL CONNECTION OF THE ESM26 (8Ω) - TOTAL IMPEDANCE 2Ω".
Drawings
Dimensional drawings for the ESM26. Key dimensions include: Height: 337.3 mm (13.28"), Width: 370 mm (14.57"), Depth: 454.5 mm (17.89"). The drawings show top, side, front, and rear views, detailing the cabinet shape, horn placement, and connector panel.
Specifications
| System Acoustic Performance |
|
| Max SPL Long-term |
123dB |
| Max SPL Peak |
129dB |
| -3dB Response |
70Hz to 16kHz |
| -10dB Response |
54Hz to 28kHz (half space) |
| Recommended Power |
275W |
| Sensitivity |
98dB |
| Impedance |
8Ω |
| Crossover Point |
2.5kHz |
| High Frequency Section |
|
| Acoustic Design |
Horn Loaded |
| High Horn Coverage Horizontal / Vertical |
100° x 100° |
| Throat Exit Diameter / Diaphragm Size |
1" / 1.75" |
| Diaphragm Material |
Nitride Titanium |
| Magnet Type |
Neodymium |
| Low Frequency Section |
|
| Acoustic Design |
Front Loaded, Bass Reflex |
| Number of Drivers |
2 |
| Woofer Size / Voice Coil Diameter |
6" / 1.75" |
| Magnet Type |
Neodymium |
| Diaphragm Material |
Epoxy Reinforced Cellulose |
| Speaker Input |
|
| Speaker Input |
2x Neutrik Speakon® |
| Features |
|
| RMS Limiter |
autoreset |
| Cabinet |
|
| Cabinet Material |
Baltic birch |
| Handles |
1 |
| Color |
"Orange peeled" Matt Black or any RAL |
| Physical Dimensions |
|
| Height |
337.3 mm / 13.28" |
| Width |
370 mm / 14.57" |
| Depth |
454.5 mm / 17.89" |
| Weight |
15 kg (33.8lbs) |
ESM12 - The Ultimate Passive Monitor
Overview
The ESM12 is a full-range, low-profile, 2-way passive monitoring solution featuring a 12" trans-coil neo woofer and the 3" NVPD large format compression driver found in KV2's flagship VHD products. The ESM12 also incorporates KV2's revolutionary passive delay line, which dramatically reduces feedback. Housed in a professional Baltic Birch cabinet with a protective polymer coating and heavy-duty grille, the ESM12 can be utilized for FOH applications with the inclusion of a pole mount. It is available in left and right configurations.
Application
Specifically designed as an extremely high-output, full-range, low-profile passive vocal and music floor monitor for:
- Live performance
- Concert venues
- Portable PA
- Fixed installations
Connection
The ESM12 features Speakon (NL4) connectors. The connectors are interconnected in parallel to allow the "daisy chaining" of additional ESM12 units.
Diagram shows two ESM12 units, each with two Speakon (NL4) connectors. The connections are wired in parallel. Text indicates: "PARALLEL CONNECTION OF THE ESM12s (4Ω) - TOTAL IMPEDANCE 2Ω".
Drawings
Dimensional drawings for the ESM12L and ESM12R. Key dimensions for ESM12L include: Height: 362 mm, Width: 666 mm, Depth: 424.7 mm. The drawings show top, side, front, and rear views, detailing cabinet shape, driver placement, and connector panel.
Specifications
| System Acoustic Performance |
|
| Max SPL Long-term |
127dB |
| Max SPL Peak |
133dB |
| -3dB Response |
55Hz to 22kHz |
| -10dB Response |
41Hz to 30kHz (half space) |
| Recommended Power |
500W |
| Sensitivity |
98dB |
| Impedance |
4Ω |
| Crossover Point |
1.2kHz |
| High Frequency Section |
|
| Acoustic Design |
Horn Loaded |
| High Horn Coverage Horizontal / Vertical |
40° x 80° |
| Rotatable Horn |
YES |
| Throat Exit Diameter / Diaphragm Size |
1.4" / 3" |
| Diaphragm Material |
Nitride Titanium |
| Magnet Type |
Neodymium |
| Protection |
RMS Limiter |
| Low Frequency Section |
|
| Acoustic Design |
Front Loaded, Bass Reflex |
| Woofer Size / Voice Coil Diameter / Design |
12" / 2.5" / Trans Coil |
| Magnet Type |
Neodymium |
| Diaphragm Material |
Epoxy Reinforced Cellulose |
| Protection |
Thermal breaker - autoreset |
| Speaker Input |
|
| Speaker Input |
2x Neutrik Speakon® |
| Cabinet |
|
| Cabinet Material |
Baltic birch |
| Handles |
1 |
| Pole Mount |
35 mm |
| Color |
"Orange peeled" Matt Black or any RAL |
| Physical Dimensions |
|
| Height |
368 mm (14.48") |
| Width |
606 mm (23.86") |
| Depth |
368 mm (14.48") |
| Weight |
23 kg (50.7lbs) |
ESM312 - High Output Full-range 3-Way Monitor
Overview
The ESM312 is a very high-output, full-range, low-profile, 3-way passive monitoring solution. It features two bass reflex loaded 12" neo woofers, a single horn-loaded 6" mid-range woofer, and a 1" compression driver. Housed in a professional, robust Baltic Birch cabinet with a protective polymer paint coating and heavy-duty grille, the ESM312 is suitable for all large-scale stage monitoring applications where quick and easy setup is required. It is considered one of the most impressive monitoring solutions available.
Application
Specifically designed as an extremely compact, low-profile passive-vocal floor monitor for:
- Live performance
- Concert venues
- Portable PA
- Fixed installations
Connection
ESM312 + ESP2000D Amplifier: Signal 1 is input to the ESP2000D. The ESP2000D output is connected to the ESM312. The diagram shows a single signal path.
Diagram illustrates connecting an ESM312 to an ESP2000D amplifier. Signal 1 is fed into the ESP2000D's input. The output of the ESP2000D is connected to the ESM312.
ESM312 + ESP2000 Amplifier: Signal 1 is input to the ESP2000 in bridge mode. The ESP2000 bridge output is connected to the ESM312. The diagram shows a single signal path.
Diagram illustrates connecting an ESM312 to an ESP2000 amplifier in bridge mode. Signal 1 is fed into the ESP2000's bridge input. The bridge output of the ESP2000 is connected to the ESM312.
Connection & Wiring
2x ESM312 + Amplifier: This setup involves connecting two ESM312 units to a 2-channel amplifier (4Ω / 1500W each channel). Signal 1 and Signal 2 are fed into the amplifier's respective channels. The amplifier's outputs (OUT 1 and OUT 2) are then connected to the two ESM312 units.
Diagram shows two ESM312 units connected to a 2-channel amplifier. Signal 1 and Signal 2 are inputs to the amplifier. Amplifier outputs OUT 1 and OUT 2 connect to the two ESM312 units.
ESM312 Wiring (Rear Panel): The rear panel features two Speakon connectors. The wiring diagram shows how the positive (+) and negative (-) terminals of the Speakon connectors are wired internally. It indicates that the '1+' and '2+' pins are connected in parallel for the positive signal, and '1-' and '2-' pins are connected in parallel for the negative signal. A switch is present for AMP CHANNEL SELECTION.
Rear panel wiring diagram for ESM312. Shows two Speakon connectors. Internal wiring connects pin 1+ and 2+ together, and pin 1- and 2- together. A switch for AMP CHANNEL SELECTION is visible.
Drawings
Dimensional drawings for the ESM312. Key dimensions include: Height: 398 mm (15.669"), Width: 585 mm (23.032"), Depth: 553 mm (21.76"). The drawings show top, side, front, and rear views, detailing cabinet shape, driver placement, and connector panel.
Specifications
| System Acoustic Performance |
|
| Max SPL Long-term |
133dB |
| Max SPL Peak |
139dB |
| -3dB Response |
40Hz to 20kHz |
| -10dB Response |
35Hz to 20kHz (half space) |
| Power Handling |
1000W continuous / 4000W peak |
| Sensitivity |
100dB |
| Impedance |
4Ω |
| Crossover Point |
400Hz; 2kHz |
| High Frequency Section |
|
| Acoustic Design |
Horn Loaded |
| High Horn Coverage Horizontal / Vertical |
90° x 40° |
| Rotatable Horn |
NO |
| Throat Exit Diameter / Diaphragm Size |
1" / 1.75" |
| Diaphragm Material |
Titanium |
| Magnet Type |
Neodymium |
| Protection |
RMS excursion limit |
| Mid Range Section |
|
| Acoustic Design |
Horn Loaded |
| High Horn Coverage Horizontal / Vertical |
90° x 40° |
| Rotatable Horn |
NO |
| Woofer Size / Voice Coil Diameter |
6" / 1.75" |
| Diaphragm Material |
Epoxy Reinforced Cellulose |
| Magnet Type |
Neodymium |
| Protection |
RMS Limiter |
| Low Frequency Section |
|
| Acoustic Design |
Front Loaded, Bass Reflex |
| Woofer Size / Voice Coil Diameter |
12" / 3" |
| Magnet Type |
Neodymium |
| Diaphragm Material |
Epoxy Reinforced Cellulose |
| Protection |
RMS Limiter |
| Speaker Input |
|
| Speaker Input |
2x Neutrik Speakon® |
| Cabinet |
|
| Cabinet Material |
Baltic birch |
| Handles |
2 + 2 |
| Color |
Polymer paint coating |
| Physical Dimensions |
|
| Height |
398 mm (15.669") |
| Width |
585 mm (23.032") |
| Depth |
553 mm (21.76") |
| Weight |
42 kg (92.59lbs) |
Accessories
Covers
Cover for ESM26
Part Name: COVER ESM26
Part Number: KVV 987 281
Description: heavy duty, padded.
Image shows a black padded cover for the ESM26 loudspeaker.
Cover for ESM12-Left
Part Name: COVER ESM12L
Part Number: KVV 987 262
Description: heavy duty, padded.
Image shows a black padded cover for the left-side ESM12 loudspeaker.
Cover for ESM12-Right
Part Name: COVER ESM12R
Part Number: KVV 987 261
Description: heavy duty, padded.
Image shows a black padded cover for the right-side ESM12 loudspeaker.
Bass Speaker Cables
Bass speaker cable Speakon 4.40
Part Name: Cable Speakon 4.40
Part Number: KVV 987 327
Description: 4 wire speaker cable, Speakon NL4 connectors, 4m (13ft), for K-RIG Bass Module hook-up.
Image shows a black 4-wire speaker cable with Speakon NL4 connectors at both ends.
Bass speaker cable Speakon 4.15
Part Name: Cable Speakon 4.15
Part Number: KVV 987 326
Description: 4 wire speaker cable, Speakon NL4 connectors, 1.5m (5ft), for K-RIG Bass Module hook-up.
Image shows a black 4-wire speaker cable with Speakon NL4 connectors at both ends, shorter than the 4.40 cable.
Speaker Cables
Speaker cable 2 x 1.5mm
Part Name: 1m - round flexible speaker cable, cross section 2 x 1.5mm
Part Number: WX 002
Image shows a round, flexible speaker cable with a 2x1.5mm cross-section.
Speaker cable 4 x 2.5mm
Part Name: 1m - round flexible speaker cable, cross section 4 x 2.5mm
Part Number: WX 003
Image shows a round, flexible speaker cable with a 4x2.5mm cross-section.
Speakon NL4 Connector
Part Name: SPEAKON NL4
Part Number: KA 027
Image shows a Speakon NL4 connector.
ESM, Speakon NL4 Wiring
Diagram shows Speakon NL4 wiring. The positive pin is wired to pins (1+, 2+ parallel). The negative pin is wired to pins (1-, 2- parallel). The diagram shows connections to an ESD SPEAKER.
Recommended Speaker Cable Lengths
| MINIMUM CROSS SECTION [mm²] |
LENGTH [m], impedance 4Ω |
LENGTH [m], impedance 8Ω |
LENGTH [m], impedance 16Ω |
| 1.5 |
8 |
15 |
30 |
| 2.5 |
15 |
30 |
60 |
| 2 x 2.5 |
20 |
40 |
90 |
| 4 |
25 |
50 |
100 |
Warranty and Service
Warranty
Your ESM Series is covered against defects in material and workmanship. Refer to your supplier for more details.
Service
In the unlikely event that your ESM Series develops a problem, it must be returned to an authorized distributor, service center, or shipped directly to the KV2 Audio factory. Due to the complexity of the design and the risk of electrical shock, all repairs must be attempted only by qualified technical personnel. If the unit needs to be shipped back to the factory, it must be sent in its original carton. If improperly packed, the unit may be damaged. To obtain service, contact your nearest KV2 Audio Service Centre, Distributor, or Dealer.
Notes
This section is reserved for user notes.
Contact Information
KV2 Audio International
Nádražní 936, 399 01 Milevsko
Czech Republic
Tel.: +420 383 809 320
Email: info@kv2audio.com
www.kv2audio.com
Document Part Number: KVV120075-00-10-0
Models: ESM Series Compact Passive Stage Monitor System, ESM Series, Compact Passive Stage Monitor System, Passive Stage Monitor System, Stage Monitor System, Monitor System, ESM26, ESM12, ESM312
KV2 Audio
