Nilfisk-ALTO DPA 2500 user manual

User manual for the device Nilfisk-ALTO DPA 2500

Device: Nilfisk-ALTO DPA 2500
Category: Stereo Amplifier
Manufacturer: Nilfisk-ALTO
Size: 0.96 MB
Added : 7/16/2014
Number of pages: 20
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Summary of the content on the page No. 1

User's Manual
40 BIT ENHANCED
DPA 2500/4000
STEREO POWER AMPLIFIER
R
LTO
www.altoproaudio.com
Version 1.0 September 2004
English

Summary of the content on the page No. 2

the recommended fuse type as indicated in this SAFETY RELATED SYMBOLS manual. Do not short-circuit the fuse holder. Before replacing the fuse, make sure that the product is CAUTION OFF and disconnected from the AC outlet. RISK OF ELECTRIC SHOCK DO NOT OPEN Protective Ground This symbol, wherever used, alerts you to the pre- Before turning the product ON, make sure that it is sence of un-insulated and dangerous voltages with- connected to Ground. This is to prevent the risk of in the product encl

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PREFACE Dear Customer: Thanks for choosing LTO DPA2500/4000 Stereo Power Amplifier which is the result of our LTO AUDIO TEAM's endeavors. For LTO AUDIO TEAM, music and audio are much more than a job, they are a passion and an obsession! We have been designing professional audio products for a long time in cooperation with many of the world's major brands. The LTO line represents unparalleled analogue and digital products made by musicians, for musicians. With our design centres in Italy, the Net

Summary of the content on the page No. 4

TABLE OF CONTENTS 1. INTRODUCTION.....................................................................................................................................4 2. FEATURES.............................................................................................................................................4 3. CONTROL ELEMENTS..........................................................................................................................4 3.1 The Front Panel 3.2 The Rear Pa

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2 1 3 1 2 3 2 1 2 1 6. Level Control for Channels 1&2 These two controls are used to adjust output level of channel 1 and channel 2 respectively. 7. UP/DOWN Key This key is used to move inside the menus or to modify the parameter's value. 8. SELECT Key This key is used to select the menu that you wish to edit. 9. ENTER Key This key is used to edit or confirm the parameter's value. 3.2 Rear Panel 14 11 18 19 POWER OUTPUTS Apparaten skall anslutas CH1 till jordat uttag nar den 1+ 1- ansluts till e

Summary of the content on the page No. 7

17. Fan The fan can accelerate the flow of air to lower the temperature inside unit.The inside temperature determines the fan speed which controls the inside air flowing speed. 18. RS485 IN The function of the RS485 IN is opposite to RS85 OUT. It allows incoming communication between a DPA2500 /4000 stereo amplifier and PC or another DPA2500/4000 stereo amplifier. The RS485 port is very suitable for remote control over long distances (Difficult with RS232 standard ports) and daisy-chaining sever

Summary of the content on the page No. 8

- Hum Cancel (ON/OFF) Select "EDIT" using SELECT key. Then select "HUM CANCEL" using UP/DOWN keys, both the "HUM CANCEL" and "EDIT" indicators will light up. Press "ENTER" to set Hum Cancel function ON or OFF. Note: the HUM CANCEL indicator will be lighting all the time if you set this function ON, and it effects only on the selected channels. - Noise Gate (ON/OFF) Select "EDIT" using SELECT key. Then select "NOISE GATE" using UP/DOWN keys, both the "EDIT" and "NOISE GATE" indicators will light

Summary of the content on the page No. 9

Summary of the content on the page No. 10

2>. The PC Editor should now load. A welcome screen will appear. This closes after 5 seconds (or click on it). Select NEW from the FILE menu. A window will open showing several different model names, because the same software is used for some of our pro audio models. Select DPA amp and click OK. You will then be presented with 2 options NEW UNIT and NETWORK SCAN. If your DPA unit has already been installed and set-up and you now wish to view and/or modify some param- eters, do the following: Sel

Summary of the content on the page No. 11

5.5 Help File The HELP file accessible from within the PC Editor will be updated as necessary. Since software updates after the printing of this manual may affect the instructions provided here, please check the Help File for any later remarks. 5.6 Introduction to the PC Editor When you launch the editor on your PC, you will see the opening screen following (later software versions may differ). Each of the numbered sections is explained in this page - just look for the number icons within the te

Summary of the content on the page No. 12

6. PARAMETER MENUS DESCRIPTION - HUM CANCEL: allows the modification of the dynamic NOTCH filter parameters. The graph included shows the filter response curve. - NOISE GATE: allows the modification of the noise gate parameters. The graph included shows the filter curve. - MULTICOMP: allows the modification of the multiband compressor parameters. The graphs below show the response curves of the two compressors. - DELAY: allows to apply a delay to each amplifier's channel, with the possibility to

Summary of the content on the page No. 13

8. CONNECTIONS The following diagrams show the schemes of the recommended cables and some connection examples referred to various system configurations. Inputs A & B, RS485 IN 1 GROUND 3 BALANCED XLR-M 2 HOT (+) COLD ( ) Inputs A & B SLEEVE GROUND TIP BALANCED JACK RING HOT (+) COLD ( ) Parsllel Output Connectors, RS485 OUT 2 HOT (+) 3 BALANCED XLR-F 1 GROUND COLD ( ) RS232 RS232 (9-Pin) 12

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2 1 3 2 1 3 2 1 2 1 2 1 3 2 1 3 2 1 2 1 Input Input Connector Connector + Balanced Channel 1 GND 1 3 2 INPUT POWER OUTPUTS Apparaten skall anslutas CH1 till jordat uttag nar den 1+ 1- ansluts till ett natverk POS NEG CH2 CH1 2+ 2- INPUT INPUT INPUT INPUT POS NEG BRIDGE RS485 IN TIP/PIN 2 TIP/PIN 2 1+ 2+ BREAKER RING/PIN 3 RING/PIN 3 SLEEVE/PIN 1 CH2 CH1 SLEEVE/PIN 1 POS NEG OUTPUT1 BRIDGE MONO CH2 1+ 1- POS NEG RS485 OUT CH2 MODE LIMITER PARALLEL STEREO BALANCED BALANCED OFF PARALLEL BRIDGE ON O

Summary of the content on the page No. 17

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10. TECHNICAL SPECIFICATIONS MODEL DPA2500/4000 40 Bit DSP Enhanced Stereo Amplifier 20Hz 20KHz@0.1% THD, Stereo Mode 8 ohms per channel(EIAJ) 460W / 625W 4 ohms per channel(EIAJ) 830W / 1000W Bridge Mono Mode 8 ohms, 1KHz, 0.1%THD 1400W / 2000W Distortion (SMPTE-IM) <0.05% Frequency Response 20Hz-20KHz 1dB, -2dB points: 20Hz-20KHz Damping Factor, 1 kHz and below >300 at 8ohms Signal to Noise,20Hz-20KHz 102dB Voltage Gain 40x (32dB) Input Sensitivity @ 4 ohms 1Vrms 10Vrms (+22dB) Input Clipping

Summary of the content on the page No. 19

11. WARRANTY 1. WARRANTY REGISTRATION CARD To obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Card within 10 days of the Purchase Date. All the information presented in this Warranty Registration Card gives the manufacturer a better understanding of the sales status, so as to purport a more effective and efficient after-sales warranty service. Please fill out all the information carefully and genuinely, miswriting or absence of this card wil

Summary of the content on the page No. 20

SEKAKU ELECTRON INDUSTRY (H.K.) CO. LTD. No.1, Lane 17, Sec. 2, Han Shi West Road, Taichung, 401 TAIWAN http://www.altoproaudio.com Tel:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 All rights reserved to ALTO. All features and content might be changed without prior notice. Any photocopy, translation, or reproduction of part of this c manual without written permission is forbidden. Copyright 2004 Sekaku Electron NF01663-1.0


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