Alto X P234 User Manual
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Alto X P234 User Manual

2-way/3-way stereo 4-way mono active crossover
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User's Manual
2-WAY/3-WAY STEREO
4-WAY MONO
X P234
ACTIVE CROSSOVER
R
LTO
www.altoproaudio.com
Version 2.0 Dec. 2002
English

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  • Page 1 User's Manual 2-WAY/3-WAY STEREO 4-WAY MONO X P234 ACTIVE CROSSOVER www.altoproaudio.com Version 2.0 Dec. 2002 English...
  • Page 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-...
  • Page 3 Preface Dear Customer: Thanks for choosing LTO Active Crossover and thanks for choosing the one of results of LTO AUDIO TEAM job and researches. For our LTO AUDIO TEAM, music and sound are more than a job...are first of all passion and let us say...our obsession! We have been designing professional audio products for a long time in cooperation with some of the major brands in the world in the audio field.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS 1.INTRODUCTION ........................... 4 2.FEATURE LIST ..........................4 3.CONTROL ELEMENTS ......................... 4 3.1 Mono 4-Way Operation a. The Front Panel b. The Rear Panel 3.2 Stereo 3-Way Operation a. The Front Panel b. The Rear Panel 3.3 Stereo 2-Way Operation a.

  • Page 5: Introduction

    1. INTRODUCTION Thank you very much for expressing your confidence in LTO products by purchasing our X-P234 Active Crossover. LTO X-P234 Active Crossover is an ideal crossover solution for most small and large PA systems, live sound venues, commercial installations, recording studio monitors and DJ setups. In addition to its flexibility in configuring to different sound systems, the X-P234 Active Crossover has advanced features such as CD Horn Equalization for constant directivity horn compensation, Phase Switches for instant phase correction and Mute Switches per frequency band.
  • Page 6 INPUT INPUT LOW CUT LOW MID HIGH MID HIGH LOW DELAY LOW OUTPUT MID OUTPUT HIGH OUTPUT STEREO 3-WAY LOW CUT LOW MID HIGH MID HIGH LOW DELAY LOW OUTPUT MID OUTPUT HIGH OUTPUT STEREO 3-WAY 2-WAY INPUT LOW CUT LOW LOW-MID LOW-MID HIGH-MID LOW DELAY...

  • Page 7: The Front Panel

    28.Phase Inversion for High Output This button will reverse the phase of the high frequencies output by 180 , so that, the high frequencies cancellation in some fields can be compensated for. 29.Mute for High Output This button mutes the high frequencies output. 30.Threshold Setting To prevent any damage to your speakers effectively, set the threshold of the multi-band limiter at the proper position.

  • Page 8: The Rear Panel

    2.Low Cut Engage this button to add a 25Hz low cut filter into the input signal path. 3.Low/Mid XOVER FREQ. Control This knob adjusts the Low/Mid crossover frequency from 44Hz to 930Hz, based on which, the Low/Mid frequencies can be output separately. 4.Mid/High XOVER FREQ.

  • Page 9: The Front Panel

    3.High Output Connectors (3 and 10) These two XLR balanced connectors are used to output the high frequencies signal. 4.Mid Output Connectors (4 and 11) These two XLR balanced connectors are used to output the middle frequencies signal. 5.Low/LF SUM output connectors (5 and 12) These two XLR balanced connectors are used to output the low frequencies signal.

  • Page 10: The Rear Panel

    14.Mute for High Output This button mutes the high frequencies output. 15.CD Horn Abbreviation for 'Constant Directivity Horn', this button can be used to boost the high frequencies, so that the power loss of it during the long distance transmission can be compensated for. 30.Threshold Setting To prevent any damage to your speakers effectively, set the threshold of the multi-band limiter at the proper position.

  • Page 11: Installation & Connection

    6.Low/High XOVER FREQ. Multiplier Combined with the usage of the Low/High XOVER FREQ. (3) knob on the front panel, this button can switch the crossover frequency range to 440Hz to 9.3kHz. Please ensure that, your speaker management system must be powered off before you proceed this switching, otherwise, the offensive switching noise can be heard through your speakers.

  • Page 12: Rack Mounting

    b. In Line Connection For these applications, the X-P234 Active Crossover provides XLR connectors to easily interface with most professi- onal audio devices. Follow the configuration examples below for your particular connection. Balanced Ring TIP RING SLEEVE Sleeve Unbalanced Ring Sleeve TIP RING SLEEVE Sleeve...

  • Page 13: X-P234 Used In 3-Way Stereo Operation Mode

    To get such a typical application, configure your system and connect the wires in the following proper steps: 1. Release the left button, and press the right button to enter into the mono 4-way operation mode. 2. Apply the mono program sources from the Mixer to the Input Connector of Channel1. 3.
  • Page 14 To get such a typical application, configure your system and connect the wires in the following proper steps: 1. Press the left button, and release the right button to enter into the stereo 2-way operation mode. 2. Apply the stereo program sources from the Mixer to the Input Connectors of Channel1 and Channel2. 3.

  • Page 15: Technical Specifications

    6. TECHNICAL SPECIFICATIONS INPUT Connectors Type Electronically servo-balanced, RF filtered Impedance Balanced >50K Ohms, unbalanced >25K Ohms Max. Input Level +22dBu typical, balanced or unbalanced >40dB, typically > 55 dB at 1 KHz CMRR OUTPUT Connectors Type Electronically servo-balanced, RF filtered Impedance Balanced 60 Ohms, unbalanced 30 Ohms Max.
  • Page 16 Rear Panel Xover Frequency Mutiplies crossover frequency range by 10 Mode Selects stereo /mono and 2/3/4-way operation LF Sum Selects normal stereo or mono-summed low frequency operation ON=Channel1+6dB Louder Channal2: the same as before CONTROLS Input Controls the input gain(+/-12dB) Xover Frequency Controls the crossover frequency Delay...

  • Page 17: Warranty

    7. 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.
  • Page 18 Tel: 886-4-22313737 email: info@altomobile.com Fax: 886-4-22346757 All rights reserved to ALTO Mobile. Due to continued development in response to customer feedback, product features, specifications and/or internal/external design may be changed without prior notice. No photocopying, translation or reproduction of any part of this user manual is allowed without prior written permission.Copyright...

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