ESD Series

The world is full of passive speakers using basic and often inefficient passive networks with the simple aim of offering an affordable easy to install solution when attached to any amplifier available. The results however are often far from acceptable due to poor phase coherency through a minimal crossover circuit and time misalignment between components.

Add to this high distortion from low cost amplifier designs and you have a speaker highly susceptible to feedback with very poor fidelity. The growth of active speaker technology has provided suitable advances in resolving some of these issues, however there are economical advantages in installing passive speakers that can still provide high quality reproduction if done properly. When KV2 Audio decided to add a passive line to our growing range of speakers we looked at how we could improve the design of  a passive [analod_delay_line] crossover network to achieve the best possible sound quality. Drawing on our deep experience in active technology we developed an analog delay line circuit that would provide time alignment and phase correction passively, substantially improving clarity and definition. Combined with our Active Impedance Control, the results are simply stunning.

We know that one size does not fit all applications so we had to ensure that a variety of models installed into a venue would not require multiple processors to try and achieve an even sound balance across the venue. We carefully tailored the frequency response and sensitivity of each model so that they would simply compliment each other when installed in a venue with little or no outboard control. While matching frequency response and sensitivity, we also provided varied impedances for the different sizedcabinets to suit a variety of applications.

Enclosed within Baltic Birch cabinets, the conservative aesthetic presentation and tactile feel create an atmosphere of quality that matches the audio performance. All in all, true to our philosophy of achieving the best sound quality possible, we have created in the ESD range, a speaker range that incorporates all of the economical and easy installation aspects of passive speakers without the need for expensive external processors.

2-Way Full-Range Compact Low Profile Passive Loudspeaker

The ESD25 is a very high quality 2-way full-range compact low profile passive loudspeaker with increased lower bass extension than the smaller ESD5. Its opposing driver design assists with pattern control of the low mid frequencies reducing reflections in reverberant spaces and improving intelligability. Delivering exceptional clarity for speech and program reproduction the ESD25 is ideal for under balcony or front stage fill applications in theatres and performing arts spaces where transparent supplementation of the main system is required. As with the already widely acclaimed ESD5 the ESD25 is shaped to fit discreetly into these applications and comes with its on integral bracket for quick installation.

Features

• Professional, Baltic birch construction with wear resistant polymer coating
• 120dB sustained output, 123dB peak with very high dynamic range
• Compact cabinet design allows for use as front fill, in-fill or under balcony applications
• Wide dispersion 90° H x 90° V horn
• Revolutionary new passive delay line
• 1/1.3" (34,4 mm) diaphragm compression driver with complex geometry phase plug for higher output, exceptionally low distortion, extended frequency response and ferrite magnetic motor structure
• Two 5" woofers with Low Inductance Lightweight voice coil technology and motor structure dramatically increases force and lowers distortion
• Proprietary design for simplified mounting integrates two M10 suspension points

Applications

Specifically designed as a discreet passive loudspeaker for reproduction of recorded music and speech

• Suitable in fixed installations as a full range speaker or as a system with accompanying subwoofers
• Excellent peripheral reinforcement for main KV2 systems
• Fill-in speaker
• Monitoring
• Ceiling or under balcony mounting