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Meyer Sound PSW-2 manual

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Table of contents for the manual

  • Page 1

    Operating Instructions PSW -2 Patents Pending Self-Powered Subwoofer Copyright © 1997, Meyer Sound Laboratories, Inc. All rights reserved Part #: 05.047.033.01 Rev A[...]

  • Page 2

    2 According to ISO/IEC Guide and EN 45014 The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC. declares that the product: The Manufacturer: Product Name : PSW-2 Product Options : All Name : Meyer Sound Laboratories Address : 2832 San Pablo Avenue Berkeley, California 94702-2204[...]

  • Page 3

    3 Introduction The Meyer PSW -2 self-powered subwoofer contains independent amplifier and control electr onics for two 15” drivers in a compact enclosure. The PSW -2 has the following acoustical specifications: Frequency Response ± 4 dB 35 – 120 Hz Dynamic Range > 110 dB Phase Response ± 30 ° 50 – 145 Hz The PSW -2 is identical i n size[...]

  • Page 4

    4 Current Requirements The PSW -2 presents a dynamic load to the AC mains which causes the amount of current to fluctuate between quiet and loud operating levels. Since differ ent types of cables and circuit br eakers heat up (and trip) at varying rates, it is essential to understand the types of current ratings and how they corr espond to circuit [...]

  • Page 5

    5 Power Connector Wiring Conventions Use the following AC cable wiring diagram to create international or special-purpose power connectors: brown = hot blue = neutral yellow/green = earth ground (chassis) AC cable color code If the colors referr ed to in the diagram don't correspond to the terminals in your plug, use the following guidelines: [...]

  • Page 6

    6 The PSW -2 performs within its acoustical specifications and operates at a normal temperature if the TPL LED is on for no longer than two seconds, and off for at least one second. If the LED remains on for longer than thr ee seconds, the PSW -2 is hard limiting with these negative consequences: • Increasing the input level will not incr ease th[...]

  • Page 7

    7 Rigging The PSW -2 weighs 162 lb (73.5 kg). The maximum rec- ommended load for a single cabinet with aircraft pan fittings is 600 lb (273kg). This working load is based on a 5:1 safety factor . The PSW -2 has six rigging brackets (three on top and bottom). E ach bracket is capable of supporting the full working load of the cabinet. There ar e fou[...]

  • Page 8

    8 Placement One of the most important factors governing subwoofer response is their placement r elative to adjacent surfaces. Subwoofers gain significant power by coupling, or loading , with nearby floors and walls. Half-space loading describes a speaker coupling with one surface. Subs placed on the floor benefit from half-space loading, while flow[...]

  • Page 9

    9 PSW-2 and MSL-4 The PSW -2 is compatible with the MSL-4, CQ, and MTS-4. However , since the LF (low frequency) response for each speaker overlaps with the PSW -2, the system frequency response exhibits a rise in the range 65– 120 Hz (MSL-4), 40–120 Hz (CQ), and 30–120 Hz (MTS-4). It is important to emphasize that the speakers are in phase i[...]

  • Page 10

    10 Driver T roubleshooting The Remote Monitoring System (RMS) is the best method to query the status of the drivers in a system before and during the performance. RMS monitors peak power , peak voltage, and average voltage (VU) for each amplifier channel, allowing immediate detection and muting for drivers with open or shorted voice coils, with min[...]

  • Page 11

    11 Safety Summary ! • To reduce the risk of electric shock, disconnect the loud- speaker from the AC mains before installing audio cable. Reconnect the power cord only after making all signal connections. • Connect the loudspeaker to a two-pole, three wire ground- ing mains receptacle. The receptacle must be connected to a fuse or circuit break[...]

  • Page 12

    12 Controls and Connectors European User Panel with IEC 309 connector U U L L C C U U L L ®® LISTED 3K59 COMMERCIAL AUDIO SYSTEM ATENCIÓN : ACCESO INTERN O A PERSONAL TÉCNICO CALIFIC A ACHTUNG : GEHÄUSE NICH WARTUNG UND REPARATUR ELEKTROFACHKRÄFTE ATTENTION : ENTRETIEN E INTERNES NE SONT AUTORISEE TECHNIQUE QUALIFIÉ UK WARNING : THIS APPARA [...]