Renseignements généraux

Nº de série

12271846

Nº de partie

1

Nombre total de parties

2

Ou

S/O

Brevets

S/O

Description générale

Square black synthetic speaker housing; red and black synthetic fittings; black synthetic covering on cord and plug head; silver and gold tone metal fittings visible.

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

33,0 cm

Largeur

31,0 cm

Hauteur

36,2 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Communications

Catégorie

Télévision

Sous-catégorie

S/O

Fabricant

Ou

Energy

Pays

Chine

État/province

Inconnu

Ville

Inconnu

Contexte

Pays

Canada

État/province

Inconnu

Période

This model of subwoofer speaker available since 2008. This example is new/ never used.

Canada

Between 1977 and 1986, the Canadian National Research Council ran a joint study with select Canadian speaker manufacturers to determine what measurable factors people equated with good-sounding loudspeakers. These listening trials indicated that flat frequency response, wide dispersion and low distortion were key factors. Energy, which is part of Klipsch Group, Inc., was actively involved in this project, and, with the results from this partnership, developed the Pro 22 speaker which became the benchmark for both NRC and the Canadian Broadcasting Corporation. In 1997 Energy introduced the Take 5 home theater system. In 2008, Energy released Take Classic 5.1 which Sound and Vision Magazine regarded as “a compact system that delivers beautiful sound and heavyweight value.” The Take Classic System was the first Energy product to be sold through a national retailer, The Source. 1990s Home theaters gained increasing popularity in the late 1990s with the development of DVD-Video, Dolby Digital and DTS 5.1-channel audio and high-quality front video projectors. In the 2000s, developments such as high-definition video, Blu-ray Disc, and newer high-definition 3D display technologies enabled people to enjoy a cinematic feeling in their own home at a more-affordable price. [Ref. 1]

Fonction

Specific: To reproduce low-pitched audio frequencies (bass).

Technique

The first subwoofers were developed in the 1960s to add bass response to home stereo systems. Subwoofers gained greater public awareness in the 1970s with the introduction of Sensurround, a joint sound effects project between Cerwin-Vega and Universal Studios, which produced loud low-frequency sounds through large subwoofers. With the advent of the compact cassette and the compact disc in the 1980s, the easy reproduction of deep and loud bass was no longer limited by the ability of a phonograph record stylus technology. During the 1990s, DVDs were increasingly recorded with "surround sound" processes that included a Low-frequency effects (LFE) channel which could be heard using the subwoofer in a home theater system. It was also during this decade that subwoofers became increasingly popular in home stereo systems, custom car audio installations, and in PA systems. By the 2000s, subwoofers became almost universal in sound reinforcement systems in nightclubs and concert venues. The typical frequency range for a subwoofer is about 20–200 Hz for consumer products, below 100 Hz for professional live sound, and below 80 Hz in THX-approved systems. Subwoofers are intended to augment the low frequency range of loudspeakers covering higher frequency bands. This is a bass reflex subwoofer which means that its design enhances the reproduction of the lowest frequencies that it generates. It is also an active subwoofer, as it includes a built-in amplifier. [Ref. 1]

Notes sur la région

Inconnu

Détails

Marques

"ENERGY" appears in raised print on speaker front. All controls, connections, etc. labelled. Other markings on speaker housing include "ENERGY ®/ SPEAKER SYSTEMS/ ESW-8/ [Canada wordmark symbol]/ Designed and Engineered in Canada/ Concu au Canada/ Made in China/ Fabrique en Chine", "120V ` 60Hz 1.0A" and "Take Classic NA/ Serial # 12271846/ Made in China". Assorted symbols and graphics and text "CAUTION/ RISK OR ELECTRIC SHOCK/ DO NOT OPEN", "TUV/ PRODUCT SERVICE/ Safety/ tested/ Production/ monitored/ NRTL/ C US" also recorded on casing back.

Manque

None.

Fini

Square black synthetic speaker housing; red and black synthetic fittings; black synthetic covering on cord and plug head; silver and gold tone metal fittings visible.

Décoration

S/O