"Its almost unpossible to describe the fantastic sound of these speakers. With this dimensions the bassquality is unbelievable."
Artur Marker

- "I am very surprised by the sound of these small Loudspeakers. The Sound inpressed me very much."
Günther Mohr, Siemens PG


- "The colour is very well chosen. It works reassuring and fits in each dwelling"
Mr. Meier,
Designer, Meier Design, Erlangen


- "Those are the first loudspeakers, which obtain such a live experience. It is like that, as if from 5 m the music is played and sung. I can judge this well, because I played several times on stage"
Mr. Schaller
, Sellsmanager, Akustik GmbH, Ballrechten-Dottingen


The sound of nature


On the way to the ideal sound image

Our philosophy is, to build the loudspeaker boxes, which would have perfect and natural sound with an attractive design and price.
In order to achieve the ideal sound, we are on the permanent and untiring search for new ways. The revolutionary invention of the Anti-Oscillations- System (AOS) from Dr. Reissig helps to carry out challanging visions.
Three different High-End-prototypes have been shortly developed, which are presented below.

AHS MA04:*

Finished in March/April 2004
FB D03:*

Finished in December 2003


Description and characteristics:

- installed AOS
Cabinet:
- chamber construction
- natural, massive maple or birch, pickled und glossy lacquered
Color:
- anthracite
- wet asphalt


Description and characteristics:

- two
AOS installed in middle and bass tone chamber
Cabinet:
- chamber construction
- natural, massive spruce, maple or birch,pickled (veneered) and lacquered
Color:
- deep-red

By pressing the "play"-button you will be proceeded to our recording-department, where you can hear recordings done with these loudspeaker-models
AHM A04:*

Finished in August 2004

Description and characteristics:

- two
AOS installed in middle and bass tone chamber
Cabinet:
- chamber construction
- massive maple, pickled and clavier lacquered
Color:
- anthracite
- wet asphalt

*) It is a specific company-only numeration. The further marketing- name or numeration may change.

Listening to the voice of EFBR-Speakers

We prepared for you, dear readers, some fragments of the capturing of the sound atmosphere while our boxes are playing. The records were completed with many Reissig microphones, which have strongly linear frequent characteristics in range 20-20.000 Hz.

Our challenging task to get the feeling of the surround fantastic sound was to capture the real and natural sound as well as possible. So we had to place the microphones at the best positions, which needs a lot of experiments, developments, and research in the most cases. The results of this one year-lasting work you can now hear.

From one original composition you have two records: one is the original CD-recording converted in mp3-high-quality-format (192kbit/sec), the other is the captured loudspeaker sound. We are convinced the comparison between two records could show the sound quality of the boxes much more better than simply looking at the in a lab measured frequent spectrum. In the ideal case the recorded sound of boxes must be almost the same like the original records. In this case, however, we are speaking about the ideal components and methods - Box - Microphone - Recording. Now hear the sound and make your own independent opinion. Enjoy the voice of the Speakers, your EFBR-Acoustic-Team.


Voice of the Loudspeaker Boxes:

Speaker model AHM A04: ( recorded sound of the speaker in the mid and bass frequence range: 1 < f < 7500 Hz )

 
CompositionFragment
Label
Original analog Record
Speaker Record
I still haven´t found what I´m looking for
Black and Tan Fantasy
Naxos
[8.990053]
www.naxos.com

Speaker model AHS M04:

 
Composition Fragment
Label
CD-Record
Speaker Record
I still haven´t found what I´m looking for
Black and Tan Fantasy
Naxos
[8.990053]
www.naxos.com
* - All rights reserved. Unauthorized lending, public performance and broadcasting prohibited.



© EFBR 2019 All Rights Reserved



This are the Expert`s opinions



"Its a really clear and transparent sound without any bad resonances"
Herr Goetz,Owner of the shop "Steinerbox", Erlangen

- "The sound and especially the sound of nature impressed me very much. 100 percent real sound,a sarting jet, for example. There are no Cabinet-vibrations, while the boxes are playing and the speakers have a very attractive and noble design. I will recommend these speakers to colleagues and friends of mine in the United States."
Dr. Gerd Brummel, Siemens - Westinghouse