KV2 Audio ESM312 User manual

User Guide
ESM Series
The Future of Sound.
Made Perfectly Clear.
At KV2 Audio our vision is to constantly develop technologies
that eliminate distortion and loss of information providing
a true dynamic representation of the source.
Our aim is to create audio products that absorb you,
place you within the performance and deliver a listening
experience beyond expectations.
· ESM26 · ESM12 · ESM312

Important Safety Instructions
Before using your ESM Series, be sure to carefully read the applicable items of these operating instructions and the
safety suggestions.
1. Read all product instructions.
2. Keep printed instructions, do not throw away.
3. Respect and rewiew all warnings.
4. Follow all instructions.
5. Clean only with dry cloth.
6. Do not block any ventilation openings.
7. Install in accordance with KV2 Audio's recommended installation instructions.
8. Only use accessories specied by KV2 Audio.
9. Install the product only with rigging specied by KV2 Audio, or sold with the loudspeaker.
10. Unplug this loudspeaker during lightning storms or when unused for long periods of time.
11. Refer all servicing to qualied 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.
12. Do not remove front or back panels. Removal of the panel will expose hazardous voltages.
There are no user serviceable parts inside and removable may void the warranty.
13. 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 re 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 twopole, 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.
ESM Series · Important Safety Instructions
ESM Series · Important Safety Instructions

ESM Series · Contents
Content
ESM26 - The Ultimate compact Passive Monitor 4
Overview 4
Drawing 5
Specications 6
ESM12 - The Ultimate Passive Monitor 7
Overview 7
Drawing - ESM12L 8
Drawing - ESM12R 9
Specications 10
ESM312 - High Output Full-range 3-Way Monitor 11
Overview 11
Connection · ESM312 Wiring 12
Drawing 13
Specications 14
Accessories 15 - 16
Warranty · Service 17
ESM Series · Contents

ESM26 · Overview
ESM26 - part number KVV 987 263
Introduction
The ESM26 is a purpose built stage monitor with incredible clarity and presence, especially in the all important vocal range.
Incorporating two high quality 6" drivers and a 1.75" compression driver on a 100 x 100 degree horn are. The ESM26 utilises
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 oor to deliver bass response comparable to monitors twice its size. Under 400mm wide this
small monitor takes up minimal room on stage and is ideal for visually critical applications like TV and theatre.
Connection
The ESM26 features two Speakon (NL4) connectors. The connectors are interconnected in parallel to allow the "daisy
chaining" of additional ESM26's.
Application
Specically designed as an extremely compact-low
prole passive-vocal oor monitor
• Live performance
• Concert venues
• Portable PA
• Fixed installations
ESM26 · Overview
4
The Ultimate compact Passive Monitor

ESM26 · Drawings
Drawings
ESM26 · Drawings
5

ESM26 · Specications
Specications
System Acoustic Perfomance
Max SPL Long-term 123dB
Max SPL Peak 126dB
-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 Reex
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)
ESM26 · Specications
6

ESM12 · Overview
ESM12L - part number KVV 987 216
ESM12R - part number KVV 987 218
Introduction
The ESM12 is a full-range low prole 2-way, passive monitoring solution with a 12" trans-coil neo woofer and the same 3"
NVPD large format compression driver found in our agship VHD products. The ESM12 also features our revolutionary passive
delay line, which dramatically reduces feedback. Housed in a professional Baltic Birch cabinet, with a protective Polymer
coating and heavy-duty grill, the ESM12 can be utilized for FOH applications with the inclusion of a pole mount. Truly one
of the most impressive monitoring solutions on the market today, the ESM12 is available in left and right congurations.
Connection
The ESM12 features Speakon (NL4) connectors. The connectors are interconnected in parallel to allow the "daisy chaining" of
additional ESM12's.
Application
Specically designed as an extremely high output,
full range-low prole passive vocal and music oor
monitor
• Live performance
• Concert venues
• Portable PA
• Fixed installations
The Ultimate Passive Monitor
ESM12 · Overview
7

ESM12L · Drawings
Drawings
ESM12 L · Drawings
8

ESM12R · Drawings
Drawings
ESM12R · Drawings
9

ESM12 · Specications
Specications
System Acoustic Perfomance
Max SPL Long-term 127dB
Max SPL Peak 130dB
-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 Reex
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)
ESM12 · Specications
10

11
ESM312 · Overview
ESM312 - part number KVV 987 467
Introduction
The ESM312 is a very high output full-range low prole 3-way, passive monitoring solution with two bass reex 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 can be utilized for all large scale
stage monitoring applications, where quick and easy set up is required. The ESM312 is truly one of the most impressive
monitoring solutions on the market today.
ESM312 Angles options
Application
Specically designed as an extremely compact-low
prole passive-vocal oor monitor
• Live performance
• Concert venues
• Portable PA
• Fixed installations
High Output Full-range 3-Way Monitor
ESM312 · Overview

ESM312 · Connection · ESM312 Wiring
Connection
ESM312 · Connection · Wiring
12
ESM312 Wiring

ESM312 · Drawings
Drawings
13
ESM312 · Drawings

ESM312 · Specications
Specications
System Acoustic Perfomance
Max SPL Long-term 133dB
Max SPL Peak 136dB
-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 Reex
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)
ESM312 · Specications
14

ESM Series · Accessories
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
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
Cover for ESM26
part name:
COVER ESM26
part number:
KVV 987 281
description:
- heavy duty
- padded
Covers
Bass speaker cables
Cover for ESM12-Left
part name:
COVER ESM12L
part number:
KVV 987 262
description:
- heavy duty
- padded
Cover for ESM12-Right
part name:
COVER ESM12R
part number:
KVV 987 261
description:
- heavy duty
- padded
15
ESM Series · Accessories

ESM Series · Accessories
Speaker cables
Recommended speaker cable lenghts
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
Speaker cable 2 x 1,5mm
part name:
1m - round exible speaker cable,
cross section 2 x 1.5mm
part number:
WX 002
Speakon NL4
part name:
SPEAKON NL4
part number:
KA 027
Speaker cable 4 x 2,5mm
part name:
1m - round exible speaker cable,
cross section 4 x 2.5mm
part number:
WX 003
part name:
ESM, Speakon NL4 wiring
positive pin
(1 +, 2 + parallel)
negative pin
(1 -, 2 - parallel)
ESM Series · Accessories
16

ESM Series · Warranty · 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 authorised distributor, service
centre or shipped directly to our factory. Because of the complexity of the design and the risk of electrical shock, all repairs
must be attempted only by qualied 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.
ESM Series · Warranty · Service
17

KVV120075-00-08-0
KV2 Audio International
Nádražní 936, 399 01 Milevsko
Czech Republic
Tel.: [phone]
Email: [email protected]
www.kv2audio.com
The Future of Sound.
Made Perfectly Clear.