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__NOTOC__
 
__NOTOC__
== Data ==
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== Daten ==
{{navigation}}
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{{Navigation}}
'''General'''
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'''Allgemein'''
* Manufacturer: [[Heco]]
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* Hersteller: [[Heco]]
* Model: Concerto Grosso
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* Modell: Concerto Grosso
* Versions: First and second version (Mk II)
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* Baujahre: 1989 - 1993
* Years of manufacture: 1989 - 1993
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* Hergestellt in: Schmitten/Taunus, Deutschland
* Manufactured in: Schmitten/Taunus, Hesse, Germany.
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* Farbe: Nußbaum, Eiche, Schwarz, Weiß, Klavierlack schwarz, Schleiflack weiß, andere gegen Aufpreis
* Colour: walnut, oak, black, white, piano lacquer black, sanding lacquer white, others against surcharge
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* Abmessungen: 415 x 1605 x 460 mm (B x H x T)  
* Dimensions: 415 x 1605 x 460 mm (W x H x D)  
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* Gewicht: ca. 60 kg/Stück
* Weight: approx. 60 kg /box
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* Neupreis ca.: 10.000,- DM (UVP Paar)
* Original price approx.: 10.000,- DM (UVP pair)
 
  
  
'''Technical Data'''
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'''Technische Daten'''
* Construction: 3-way closed, floorstanding speaker
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* Bauart: 3-Wege geschlossen, Standlautsprecher
 
* Chassis:
 
* Chassis:
** Low-mid: 3x 220 mm (cone, TC 220).
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** Tiefton: 3x 220 mm beschichtete Konuslautsprecher
Low-midrange: 2x 170 mm (cone, TMC 170)
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** Tief-Mittelton: 2x 168 mm beschichtete Konuslautsprecher
** tweeter: 1x 19 mm (dome tweeter, KHC 19 M)
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** Hochton: 1x 19 mm Metallkalotte mit Schutzgitter
power handling (nominal/music): 250/400 Watt
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* Belastbarkeit (Nenn-/Musikb.): 250/500 Watt
efficiency: 88 dB
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* Wirkungsgrad: 88 dB
* frequency response: 16 - 35,000 Hz
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* Frequenzgang: 16 - 35.000 Hz
* crossover frequency: 180/3000 Hz
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* Übergangsbereiche: 150/2900 Hz
* Impedance: 4 Ohm
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* Impedanz: 4 Ohm
  
  
'''Special Features'''
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'''Besondere Ausstattungen'''
* hexagonal LS housing to minimize interference
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* sechseckiges LS-Gehäuse zur Minimierung von Interferenzen
* black, velvet-like flocked baffle
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* schwarze, samtartig beflockte Schallwand
* 19 mm metal dome tweeter chassis (upper cut-off frequency >35 kHz)
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* 19 mm Metallkalotten-Hochton-Chassis (obere Grenzfrequenz >35 kHz)
* Low-frequency and low-midrange drivers each have a large square aluminum "frame" that is an integral part of the speaker driver design, die-cast aluminum baskets, large-diameter voice coils, and oversized magnets
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* "Brillianz"-Schalter zur Anpassung des Hochtonpegels im LS-Anschlussfeld (nur bei der ersten Version der Lautsprecher)
* "Brilliance" switch for adjusting the high-frequency level in the LS connection panel (only on the first version of the speakers)
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* Persönliches Zertifikat für Erstkäufer
* Personal certificate for first-time buyers
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* Herstellerplakette, auf Wunsch mit Namenszug des Erstkäufers
* Manufacturer's plaque, with the name of the first purchaser on request
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* Plakette mit Bezeichnung "Jubiläums Edition 1989" sowie "Concerto Grosso No. ..." (Fabrikationsnummer)
Plaque with the designation "Anniversary Edition 1989" as well as "Concerto Grosso No. ..." (serial number)
 
  
== Remarks ==
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== Bemerkungen ==
* Special model for the 40th anniversary of Heco in Schmitten/Taunus, Hesse.
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* Sondermodell zum 40-jährigen Firmenjubiläum von Heco in Schmitten/Taunus, Hessen
* Limited edition of only 500 loudspeaker pairs worldwide
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* Limitierte Auflage von nur 500 Lautsprecher-Paaren weltweit
  
== Other models of the same series: ==
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== Weitere Modelle der gleichen Serie: ==
* Heco Concerto Grosso - first version - was equipped with a low-midrange driver only.
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* Heco Concerto Grosso - erste Ausführung - ist nur mit einem Konus-Tief-Mitteltöner versehen
* In the first version the tweeter chassis was placed at the very top of the speaker.  
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* Bei dieser ersten Ausführung wurde das Kalotten-Hochton-Chassis noch ganz oben im Lautsprecher verbaut.  
* In the subsequent and revised version of the speakers (Mk II) this is now in the manner of the d`Appolito arrangement between both cone low-mid drivers at the usual installation height.
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* Bei der nachfolgenden und überarbeiteten Version befindet sich dieses dann in Art einer d`Appolito-Anordnung zwischen den beiden Konus-Tief-Mitteltönern in üblicher Einbauhöhe.
  
== Pictures ==
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== Bilder ==
Due to possible copyright reasons no pictures are posted. But you can easily find them on the net...Please just goo.... yourself!
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Aus möglichen Urheber-Rechtsschutz-Gründen wurden keine Bilder eingestellt. Man findet diese aber einfach im Netz...Bitte einfach selbst danach "goo...."!
  
== Reports ==
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== Berichte ==
* Test report in "Stereoplay" issue 10/1990 (Classification: "Absolute top class 3")
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* Testbericht in "Stereoplay" Heft 10/1990 (Einstufung: "Absolute Spitzenklasse 3"
* Test report in "Audio" issue 03/1990 (Comparative test: "Pillar saints...")
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* Testbericht in "Audio" Heft 03/1990 (Vergleichstest: "Säulenheilige...")
  
 
== Links ==
 
== Links ==
  
[[Category:Loudspeaker]]
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[[Kategorie:Lautsprecher]]

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