d&b audiotechnik E-PAC Hardware Manual
  1. Manuals
  2. Brands
  3. d&b audiotechnik Manuals
  4. Amplifier
  5. E-PAC
  6. Hardware manual

d&b audiotechnik E-PAC Hardware Manual

Hide thumbs Also See for E-PAC:
Table of Contents

Advertisement

Quick Links

Download this manual
E-PAC
Power Amplifier Controller
Hardware manual
(1.0E)

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the E-PAC and is the answer not in the manual?

Questions and answers

Related Manuals for d&b audiotechnik E-PAC

Summary of Contents for d&b audiotechnik E-PAC

  • Page 1 E-PAC Power Amplifier Controller Hardware manual (1.0E)
  • Page 2 Please refer to the information in the operating manual. WARNING! Dangerous voltage! General Information E-PAC Power Amplifier Controller Hardware manual Version 1.0E, 09/2003, D2014.E.01 © by d&b audiotechnik AG 2003; all rights reserved. The information contained in this manual has been carefully checked for accuracy, at the time of going to press, however no guarantee is given with respect to the correctness.

  • Page 3: Table Of Contents

    Contents Safety precautions .............4 Information regarding use of the E-PAC..........4 1. Introduction ............6 1.1. E-PAC based systems...............7 1.2. E-PAC block diagram ..............7 2. E-PAC Power amplifier controller ......8 2.1. Digital signal processing ..............8 2.2. E-PAC power amplifier..............9 2.3. Power supply ..................9 2.4.

  • Page 4: Safety Precautions

    The following information is intended to prevent fires and possible electric shocks: The E-PAC is a protective class 1 unit. Make sure that the earth (ground) contact is attached when the unit is in operation. A missing earth (ground) contact may lead to dangerous voltages in the housing and controls.
  • Page 5 (e.g. wireless microphones, mobile phones, etc.). Damage to the mainframe is unlikely, but cannot be excluded. To meet the EMC requirements, use only shielded cables with properly connected plugs for all signal terminals (INPUT, INPUT LINK, MIX IN). E-PAC, Hardware manual (1.0E) Safety precautions-2 E-PAC, Hardware manual (1.0E)

  • Page 6: Introduction

    This manual describes the facilities and functions of the hardware of the d&b E-PAC Power amplifier controller. A detailed description of the E-PAC Software and remote control is given in the E-PAC Software manual, which is also provided with the E-PAC.

  • Page 7: E-Pac Based Systems

    The E-PAC is specifically designed for high impedance loads (200 W into 16 ohms, 300 W into 8 ohms). If low impedance (LO IMP) mode is selected the E-PAC can drive up to two 8 ohm or four 16 ohm loudspeakers, at reduced output (–6 dB).

  • Page 8: E-Pac Power Amplifier Controller

    Digital Signal Processor (DSP), all necessary protection circuits, a remote interface, controls and indicators. The E-PAC is housed in a 2RU high, rugged enclosure and can be operated as a stand alone unit. Optional accessories allow single a E-PAC to be installed in standard 9.5" or 19" equipment racks or flightcases.

  • Page 9: E-Pac Power Amplifier

    The E-PAC can deliver 200 W continuous sine wave output power into a 16 ohm load or 300 W into an 8 ohm load. Selecting low impedance mode enables the E-PAC to deliver an output power of 150 W into 4 ohms.

  • Page 10: Cooling

    2 A (peak) at 230 V and 4 A (peak) at 115 V. The nominal operating range of the E-PAC is between 85 V and 265 V (100 V –15% /230 V +15 %). Where voltages outside of...

  • Page 11: Remote Control

    The REMOTE sockets can be used with either the dbCAN (CAN- Bus) interface or with a serial interface to the d&b Remote Interface Bridge (RIB) to integrate the E-PAC into a control and monitoring system. A detailed description of remote control via dbCAN (CAN-Bus) is given in the technical information TI312 (d&b code D5312.E.)

  • Page 12: Controls And Indicators

    The power consumption is very low (2 W typical). − on: the E-PAC is switched on. Via remote or the MUTE control E-PAC Mains power switch the E-PAC can be switched to standby mode. To indicate standby mode the display remains active.

  • Page 13: Level/Push Menu (Digital Rotary Encoder) [3]

    When the E-PAC is set to STANDBY (or the mains power is turned IMPORTANT! off) the movement of the loudspeaker cones in the cabinets connected is no longer damped by the power amplifier output. This removal of the damping makes them susceptible to excitation by other loudspeakers in the surroundings.

  • Page 14: Ovl Led - Overload (Red) [7]

    Illuminates depending on the input signal: − While the green ISP-LED is lit » Overload: either the input signal level is too high or the E-PAC is trying to deliver too high an output current. If in doubt of the reason reduce the input gain at the E-PAC level control.

  • Page 15: Connections

    Only use a fuse of the correct type and nominal current value. Before restoring power to the E-PAC all cabling should be checked for faults. If in any doubt disconnect all signal and loudspeaker connections. E-PAC, Hardware manual (1.0E)

  • Page 16: I/O Connectors

    (LINK) and a NL4 loudspeaker output (SPEAKER OUT). 4.2.1. INPUT [12] and INPUT LINK [13] The E-PAC signal input connector is a 3 pin female XLR. Below and wired in parallel is a 3 pin male XLR input link connector used to feed the input signal on to the next device in the system signal chain.

  • Page 17: Remote Interfaces

    E-PAC Remote interfaces 4.3.1. REMOTE [10] The E-PAC is fitted with a two-wire serial remote control interface, (2 x RJ 45) carrying both the RIB and CAN-Bus signals. All pins of both connectors are wired in parallel allowing either to be used as the input or output.

  • Page 18: Technical Documentation

    Mains inrush current limiter ........2 A peak at 230 V, 4 A at 115 V Overvoltage protection..................up to 400 V Self resetting overtemperature protection ..........75 C /167 F Output short and open circuit protection...............• 20 A Speaker switch on delay ................approx 2 sec. E-PAC, Hardware manual (1.0E) Page 18 of 24...
  • Page 19 Universal voltage range switched mode power supply with active power factor correction (PFC) Mains voltage rating ..............85 – 265 V / 50 – 60 Hz Mains fuse .......................5A Time lag (T) E-PAC, Hardware manual (1.0E) Page 19 of 24...

  • Page 20: Power Consumption And Power Loss

    [W] average output power [W] Power consumption and loss of E-PAC as a factor of output Average power consumption and loss of E-PAC as a factor power (W into 8 ohms) with pink noise signal...

  • Page 21: E-Pac Operation

    E-PACs are being racked for road use. The E-PAC enclosure can get hot during operation, therefore allow a gap of at least 2 cm (3/4") between an E-PAC and the rack top/ bottom panels, or other equipment above or below (see figure on the left).

  • Page 22: E-Pac Rack Mount Kits

    − 2 x connector brackets [4] − 16 x Allen screws [S], Allen key The solo rack mount kit (Z2503) allows one E-PAC to be mounted in a 9.5“ equipment rack or flightcase. The solo rack mount kit (Z2503) includes the following parts: −...

  • Page 23: Technical Drawings

    222 [8.74"] 338 [13.31"] E-PAC LEVEL MUTE PUSH MENU POWER 483 [19.00"] 465 [18.30"] E-PAC E-PAC LEVEL MUTE LEVEL MUTE PUSH MENU POWER PUSH MENU POWER E-PAC enclosure dimensions in mm [inch] E-PAC, Hardware manual (1.0E) Page 23 of 24...

  • Page 24: Eu Declaration Of Conformity (Ce Symbol)

    6. EU declaration of conformity (CE symbol) This declaration applies to the E-PAC power amplifier controller manufactured by d&b audiotechnik AG consisting of the amplifier unit. − E-PAC Z2510 all versions All production versions of type E-PAC starting from version Z2510.000.01 are included, provided they correspond to the...

Table of Contents