Manual
Thank you for purchasing this KV2 Audio, ESR series system, consisting of the ESR2800 stereo controller/ampli-
er unit, two ESR212 speakers and optional variants of subwoofers.
The ESR range has been developed for a particular niche in the market, where an all in one box is needed to
give clear detailed reproduction over a wide area. The ESR212 and 215 are three way full range enclosures with
wide dispersion characteristics. They can be used vertically for theatre, church or cultural centre type installati-
ons, or horizontally mounted to give excellent coverage over a tiered seating area for stadium or grandstand
type applications.
Similar to our popular ES range, the ESR cabinets are fully active and driven by a proprietary amplier, which
delivers equalized, and time aligned accurate signal to each of the components. Two ESR212 cabinets can be
driven by a single ESR2800 High Denition Amplier, which houses all signal processing and amplication,
as well as providing control for two dierent external subwoofer cabinet congurations if required.
In situations where extended bass response is not needed, but full range high denition audio reproduction
with extremely good coverage is required, the ESR Range oers an ideal solution. Economies of scale are
achieved by the requirement of only one ESR amplier, to run a three way active stereo system where other
systems would require processors and multiple ampliers to achieve a similar conguration.
This manual contains important information on operating the ESR system correctly and safely. Please take some
time and read this manual to familiarize yourself with the advanced features of this system.
The ESR2800 Amplier is a three-way, active control and amplication system, specically designed for the KV2
Audio ESR series loudspeaker systems. It houses all signal processing and amplication, as well as providing
control for external subwoofer cabinet congurations, and to operate additional subwoofer cabinets if needed.
External subwoofers are powered by the external subwoofer amplier (VHD3200).
The amplier compliment and conguration inside the ESR2800 Amplier is as follows:
High Frequency - 100-watt, Class AB, Push pull, Low intermodulation design.
Mid Frequency - 200-watt, Class AB, Push pull, Low intermodulation design.
Low Frequency - 1000-watt, High-eciency, Current-enhancing switch mode technology with Linear Active Filter.
In most cases it would be advisable to use a KV2 Audio Line driver (LD4) in addition at the mixer end, to ensure
that the line to the amplier is driven correctly and the signal integrity maintained.
Although this system is simple to operate, improper use can be dangerous. This is a very high-powered device
that can put out high voltages and sizeable currents. Always use safe operating techniques with the SL series
system.
FOR YOUR SAFETY, READ THE IMPORTANT PRECAUTIONS SECTION AS WELL AS THE INPUT, OUTPUT
AND POWER CONNECTION SECTIONS OF THIS MANUAL.
Warranty
Your ESR System is Warrantied against defects in material and workmanship. Please refer to your supplier for more
warranty details.
Service
WARNING! Electronic components, risk of SHOCK!
In the unlikely event that your product requires service, it must be returned to an authorized KV2 Audio distributor, service
centre or shipped directly to the factory.
All warranty and service repairs must be undertaken by qualied technical personnel.
If the unit/s need to be shipped back to the factory, we advise using the original packing to reduce the risk of damage in
transit.
Please contact your nearest KV2 Audio centre for service details. Distributors list can be found at www.kv2audio.com.
Introduction
4
ESR series
Introduction