The image contains a Studio Monitor that is placed on a speaker stand in a cozy, modern living room. The loudspeaker cabinet is made out of birch wood. There is a small tweeter waveguide cnc-machined into the front panel. There is a bass reflex opening. The side walls are slightly curved. The wooden surface is smooth.

Unaltered
Sound
Reproduction.

Simulation results from a finite-element analysis of the loudspeaker enclosure.

Spot-on.

An measurement instrument (Accelerometer) placed on the loudspeaker enclosure to measure its vibration

Detailed.

Diligent.

Meticulous.

This is a picture of the integrated amplifier. There is a green printed circuit-board with small electronic components on it. There are transistors, blue capacitors, orange power resistors. A soft light is reflecting on the circuit board surface. The design looks very clean and ordered. The heat of the power transistors is conducted to the back panel.

Low Distortion.

Rings in an wooden enclosure. This is the waveguide.

Timeless.

Roaring dinosaurs Million years ago.
Roaring loudspeakers today.

An image of the loudspeaker's backside. There is a aluminium metal plate with 2 electric connectors. One Connector is the Audio XLR input, the other is the Power inlet connector. The back panel cannot be seen from the front or the sides. It has a voltage selector switch for use in 115V and 230V countries. The metal plate dissipates the heat from the amplifier by convection cooling. The main power switch is also on the back panel.

Analog.

A measurement diagramm of the acoustical output, also called on-axis Frequency response.

High-Resolution.

The spirit of Grandpa's Stereo.
In one box.

Wait.
What was that?

Why should I buy an Eltos Loudspeaker? Good loudspeakers already exist.

It is true. There are already a lot of great products from well known brands on the market. Companies are constantly seeking for new ways to stand out. Be it by offering loudspeakers with integrated Room-EQ, advanced connectivity options, calibration microphones, subwoofers, multi-channel options, and more. With such a large set of requirements there have to be compromises somewhere. It is why we at Eltos invest most of our time analysing even the slightest acoustic mistakes to improve the reproduction. When you go into this level of detail problems can get complex quickly. That's why we try to keep the design as simple as possible. Where does distortion come from? What mechanisms are causing it? Can it be reduced? It is easy to generate a sound using a speaker, it is very hard to prevent it from ringing-out. Our speakers are critically damped through the whole frequency range. Structural resonances are damped using multiple material layers and bracing. The motor distortion is reduced by a voltage/current source hybrid amplifier. The signal waveform is retained by using all-pass filters. The integrated electronics are designed and built inhouse. Every unit is hand calibrated and measured. We conduct outdoor full space measurements that offer a stupendous frequency resolution. Even subtle, narrow-Q Resonances can be seen this way. In other words we are missing nothing that could get between you and your music. How many other manufacturers could claim the same? No software updates, no compatibility issues, the product will still work even after our company shut down. By the way, the absolute peak Sound Pressure Level is 110dB at 1m.

How do you make a loudspeaker sound so real?

You immediately notice if a loudspeaker is not performing well but you can't put your finger on it. If you don't know what's wrong you can't improve anything. The first step is to collect data. This anechoic data however, is still not sufficient as we don't know where the resonances come from. The half-plane data is combined with data collected from accelerometers attached to different spots on the enclosure. Furthermore, a measurement is conducted to determine the bass reflex port pipe-resonances. Now we exactly know where the resonances are coming from and how loud they are. We can finally start working on reducing the resonances and to repeat all measurements again until we are satisfied with the performance. The resonances are now imperceptible but different pitches are still not played equally loud and the sound from the tweeter is not arriving at the same time as the sound emitted by the woofer. It is time to develop a filter that reverses this effect by making all pitches equally loud and delaying the signal so that the sound of all motors arrives to the listener at the same time.

How to judge the Speaker performance for people in a hurry.

It is recommended to compare the sound of a loudspeaker with the sounds that we humans experience in our every day life. If you close your eyes listening to a human voice through a loudspeaker and you can't tell whether the sound is coming from a real person or a loudspeaker - You probably found a very good product! For people that never listened to such an unaltered re-production this comes very unexpected. They usually open their eyes to check whether there really is no person standing in front. The only requirement for a loudspeaker to do this is not to alter the incoming signal. It is incredibly difficult to design such products because the hardware itself does everything but not-altering the signal. Good speakers are acoustically invisible, you shouldn't be able to hear the loudspeaker. The sound isn't fatigueing. Even after listening to music for several hours at moderately loud levels. You can listen to music all day long. The interesting thing with a crowd listening to such a system: The audience is quiet. People in the audience are completely absorbed by the amount of acoustical information.

Location


	Our products are designed and built in Switzerland.

Contact Eltos


sales	@eltos.ch

A start-up based in Zurich. Dear visitor, we have no intent to collect or process your personal information.

Unaltered Sound Reproduction.