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"If you know subwoofers, you know about Velodyne."
-Corey Greenberg
Home Theater Technology/February 1995
Face Off: Comparison of five subwoofers HGS-15 THX Ultra 2
and
"In general, the Velodyne could play slightly louder, and often cleaner, than
the Sunfire."
HGS-18 THX Ultra 2
-D.B. Keele, Jr.
Audio/ June 1998
Owner's Manual
"How do they get this kind of bass out of such a tiny box? Deep, tight, tuneful
and loud enough to rattle pictures on the wall--this is serious subwoofing."
-Robert Deuts
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INSTALLATION WORKSHEET IMPORTANT SAFETY INSTRUCTIONS CAUTION RISK OF ELECTRIC SHOCK Date: _____________ MODEL/SERIAL# ________________ DO NOT OPEN Caution: To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel. Installed by: _____________________ Phone: _______________ The lighting flash with arrowhead symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" withi
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WICHTIGE SICHERHEITSHINWEISE SPECIFICATIONS HGS-15 THX Ultra 2 HGS-18 THX Ultra 2 VORSICHT Cabinet (H/W/D) 19.5" x 18" x 17" 23.5" x 21.25 x 18.5" GEFÄHRLICHE SPANNUNG NICHT ÖFFNEN Frequency Response 18Hz - 120Hz +/- 3 dB 15Hz - 120Hz +/- 3 dB Vorsicht: Zur Vermeidung von Gefahr durch elektrischen Schlag, Deckel (oder Rückwand) nicht Harmonic Distortion less than .5% less than .5% abnehmen. Produkt enthält keine Anwenderteile. Reparatur und Wartung nur von qualifiziertem Fachpersonal vornehme
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IMPORTANTES CONSIGNES DE SECURITE Troubleshooting & Service ATTENTION ––––––––––––––––––––––––––––––––––––––––––––––——————–––––– Risque d’électrocution If you should experience a problem with the operation of your subwoofer, please check all Ne pas ouvrir of the following before seeking service. Following is a simple troubleshooting guide to Attention: Afin d’éviter tout risque d’électrocution, ne pas enlever le boitier (ou partie arrière de l’enceinte). assist you. Aucune pièce ne doit être man
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As in our other servo products, we then incorporated closed-loop accelerometer based Congratulations! servo-control of the loudspeaker. At the heart of this control system is a low mass –––––––––––––––––––––––––––––––––––––––––––––––—————– accelerometer rigidly attached to the voice coil. The accelerometer continuously monitors Congratulations on your purchase of a Velodyne subwoofer system. This system cone motions, providing us with a feedback signal for the servo control circuitry. This high-
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Product Features & Controls The Velodyne servo-control solution ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Your Velodyne HGS subwoofer produces sound in the same manner as conventional • 15" (12.7" piston diameter) or 18" (15.2" piston diameter) subwoofer with loudspeakers: a cone-shaped piston is forced to move by means of a linear motor. tandem 3" voice coils and 220 oz. magnet However, this is about the only convent
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The first type of protection circuitry which prevents overdriving of the speaker or amplifier Installation operates constantly without being audible under most situations. In some extreme —————————————————————————————————————————————— situations (sustained high output levels such as pro sound usage), the unit may shut down Your new Velodyne servo subwoofer provides for a number of installation options. Read momentarily. The blue power led may also blink rapidly. This indicates operation of the a
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A bypass switch is also provided if you wish to use an external crossover. If you are not response and output level can be drastically influenced by placement, depending on the using an external crossover, we recommend that you use the one provided acoustic properties of the listening room. Typically, the optimum location for a subwoofer within the unit for optimum performance! is tucked away in a corner of your listening room. This location will usually offer the greatest output levels and opti
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External remote jack Speaker-level connection This connection allows an auxiliary infrared remote receiver "eye" to be installed and –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– placed where most convenient. This option is usually only required when the subwoofer Figure 2 shows an easy way to connect your Velodyne subwoofer directly to your receiver is to be part of a custom installation in which the built in "eye" (located adjacent to the or integrated amplifier. When connected
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Figure 1: Installation using line-level inputs Subwoofer outputs The Velodyne subwoofer is designed to operate using the full range audio signal for input BALANCED BALANCED INPUT(RIGHT) INPUT (LEFT) when using the built-in crossover. Some processors/receivers, have a "subwoofer out" jack SUBWOOFER LOW-PASS CROSSOVER VOLUME EXTERNAL 80 Hz that is internally filtered and designed to be used with a conventional amplifier and speaker. REMOTE PHASE SUBSONIC X-OVER POWER MIN MAX 120 Hz 40 Hz In some r
