Canton ERGO 690 DC Test

For more than 30 years, there are high-quality boxing, ERGO hear the name in Canton. Timeless compliant design has changed since little, technology and sound for it even more.

Some of the wild 80s products were visually so intrusive that they disappeared again after a few years in the sinking. Other matured to classics, which doesn’t show her age even after decades.

Did you know, that the design of the today’s ERGO 690 based on an over 30-year-old design? The ur-ERGO (see figure on page 38 above), that stereoplay tested in December 1981 the gently rounded edges and the distinctive grille to protect of the chassis already owned.

Typical HiFi-boxes of at the time were large and stocky as their today’s siblings. Especially sound pressure fixed copies owned woofers in the 12-inch format and were similarly bullish. Many speakers had due to their low height on pedestals, to bring their acoustic centres at ear level.

The ERGO design broke with this tradition not very meaningful. Bulky Einzeltieftöner were replaced by multiple small drivers which stimulate the room more evenly. Thanks to a height of more than one metre high and midrange were automatically where they belong from a phonetic perspective.

The Sonic benefits of construction were so compelling that other manufacturers after jumped on the bandwagon. Today are standing speakers with multiple parallel woofers and acoustic centres at ear level the most normal thing in the world.

Canton ERGO: design

The ERGO design was so successful that, is also due to its technical implementation. The finely modelled radii take the strictness of form and convey what today’s buyer circles like to refer to as Valence. The curves are made with solid wood quarter bars and stress as the high-quality workmanship of the veneered surfaces in addition.

Since the first edition, the design was modified only gently. Over the years, the Ergo models following the taste of the time were slim – especially through narrower sound walls something else. Also the veneers have been changed again and again because the Zeitgeist favors even more bright and then darker Woods. Ash-black, cherry and Wenge are currently available.

Canton ERGO: construction

Much more has happened under the pretty hood. So who in the ERGO 690 used chassis and filter with those of the early years as well as nothing more common. This is particularly evident when comparing the tweeters and Midranges. In contrast to the bass drivers, which became smaller with time, the membrane surfaces grew here. The diameter of the dome rose from 19 to 25 millimetres and the baskets of the midrange is multiplied by 12 to 18 centimetres.

Progress in membrane materialsis particularly evident. Aluminium as a raw materialis used today instead of textile fabric (in the case of tweeters) and coated paper (for Cone drivers). The metal diaphragms are stiff and can follow more complex signals. Also its resistance to environmental factors such as UV light, for example, is higher.

Also the thermal load capacity increased over the generations. Glue, which cope with higher temperatures, and better ventilated oscillation systems with larger diameters are responsible. Today the nominal power handling is a ERGO 690 rich 170 Watts. Not uncommon that chassis or crossover components the service failed due to overheating, was 30 years ago, today the failure rates are properly used in the Milli.

Canton ERGO: sound

Indeed the early generations of ERGO metrological point of view nor tonally coexist alongside the representatives of the current series . This is due to the highly refined development methods are determined at the latest since the Millennium simulation programs such as Klippel. Which means vibration behavior in a way can be perfect, which was impossible with the previous craft methods.

Today, developers can optimize the omnidirectional and thus the sound fidelity on the membrane shape and the frequency response of a chassis at the ends of its field of application in such a way that the decay behavior of box is improved in conjunction with the appropriate filter configuration.

Most clearly the continuous development in the distortion is noticeable. Even at levels around 100 decibels (red lines in the clanking diagram in the measurement table) it distorts ERGO very little 690 in the Centre of the sound decisive.

The twin beading for the cone Reiber introduced with the latest generation are another reason for the relaxed handling of 690 with complex waveforms. These allow larger strokes the membranes and still reliably absorb the movement.

Hearing test

In the same year, Canton ERGO presented its first, the career of the synth-pop band Depeche Mode began “Speak & spell”. The breakthrough was “people are people”, appeared in 1984.

The 690 had not the slightest bother with the melodious 80’s classic. The voice pointed out, rhythmically quite intricate song sounded with the ERGO so engaging that I wish I would have had one already at my student time as sovereign sound box available. The younger visually and constructively Vento 890.2, who recently stereoplay-was named readers to the best level box of up to 5000 euros, can do everything still slightly better. She sounds direct, fine and habh after, but with 3200 euro costs also 60 percent more.

Tonally at least the Unequal Canton sisters were extremely close together and also some smaller was ERGO not so far away, that you could pull as a less expensive alternative not considering.

Depeche Mode are still very good in the business and have two in the German single charts achieved with her brand new single “Heaven” recently place. Listen this timbre rich song times of all alone of the 690. You will hear: this box is fully acoustic on the amount of time.

The ERGO-series since 1981

When Canton 1981 ERGO introduced the first box with the name, nobody could have imagined that the Typical design features would be even 30 years later still in demand. The concept comes from the industrial designer Richard Fischer, who had already worked temporarily for the Braun AG. The native Bavaria, Germany was a professor at the College of Design in Offenbach until 1999 and 2010 unfortunately died.

The ur-ERGO from 1981 was a single product. The stand box was full and offered three power amplifiers per 75 watts of continuous power. It had sound control and a comfortable automatic. A feedback helped the woofers for more precision.

Only when it was sure that the optics at the customer arrived very well, extensive series ERGO style emerged. The design has hardly changed, however, regularly updated drivers and crossovers.

Most ERGO models were and are pure-bred passive boxes, but no rule without exception. The versatile sound-optimised signal processor technology carrier appeared mid-90s digital 1 and 2 in the the ERGO design. The ERGO RC-A (vintage 2001) was active part with power amplifier for the woofer including electronic equalization. The temporarily extremely popular SC models achieved a lower cutoff frequency through an external equalization switch for.

There were the biggest changes over the years in the chassis. At times of ur-ERGO, still bass Rich 25 centimeters in diameter were required to fill a medium-sized room adequately with sound pressure. ERGO 690 meet today’s two 20s for a sound splendor not Spitfire a UR-ERGO despite more complex technology to the.

Part of the increased ESS goes the Canton for several years in the filter on the account of a high pass filtering included in the vote, integrated.

That increased the sound quality over the years, is located on many details, which greatly impact in total. Sound-neutrality materials for membranes, linear working drives and exact matched filter are the essential factors. But for the owners of older ERGO models. The service of Canton could still fix the early models. If necessary, the driver will be rebuilt by hand.

Thanks to the continuous development of the ERGO models today competitive are. Let’s surprise us, what will do in the coming years with his classic Canton.