Related Manuals for Alto CLE8.0
Summary of Contents for Alto CLE8.0
- Page 1 User's Manual CLE8.0 COMPRESSOR /LIMITER /GATE www.altoproaudio.com Version 2.1 Dec. 2002 English...
- Page 2 SAFETY RELATED SYMBOLS CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN This symbol, wherever used, alerts you to the pre- sence of un-insulated and dangerous voltages with- in the product enclosure. These are voltages that may be sufficient to constitute the risk of electric shock or death.
- Page 3 PREFACE Dear Customer: Thanks for choosing LTO CLE 8.0 Compressor/Limter/Gate and thanks for choosing one of the results of 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.
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Page 4: Table Of Contents
TABLE OF CONTENTS 1. INTRODUCTION...4 2. THE CONCEPT BEHIND...4 2.1 Some technical stuff 2.2 Voltage Controlled Amplifier (VCA) 2.3 Inputs 3. CONTROLS...6 3.1 Master Control Section 3.2 Expander / Gate Section 3.3 Compressor Section 3.4 Peak Limiter Section 3.5 The Rear Panel 4. -
Page 5: Introduction
1. INTRODUCTION You are now the Owner of an We have included in it several innovative circuit designs that make the CLE 8.0 a very versatile processor: smart and fast recognition of the program, adjustable Expander/Gate and very low distortion Voltage Control Amplifier (VCA). Feature List: Smart Knee Control Compressor (SKC) Soft knee or hard knee? This is the question! SKC combines both: In the "soft knee"... - Page 6 2.1.2 Introducing Audio Dynamics The human ear can detect the noise generating by falling leaves as well as the roar generated by the taking off space shuttle. Unfortunately no analog, nor digital device can reproduce such wide spectrum. Please look at Chart.1 and you will see the difference if dynamic capacity of various devices when compare to the human ear.
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Page 7: Voltage Controlled Amplifier (Vca)
8 rotary controls and 22 LEDs except channel 1 which short of the LINK CH1 push-button only. 3.1 Master Control Section SMART SMART SMART SMART Pic.1: Front Panel of The CLE8.0 GAIN REDUCTION(dB) IN/OUT LEVEL(dB) SMART SC FILTER IN/OUT METER... -
Page 8: Expander / Gate Section
1. Gain Reduction Meter It indicated the gain reduction. The range displayed is 1 to 30 dB. 2. Input / Output Level Meter It will read the actual Input or Output Level. The range goes from -24dB to +18dB. 3. Bypass Switch This switch simply turns off the correspondent channel. -
Page 9: Compressor Section
3.3 Compressor Section COMPRESSOR(dB) 11. Compressor Control This control adjusts the threshold level for the Compressor section in the range of -40dB to +20dB. The SKC (Smart Knee Control) is applied to the audio signal, which is a maximum of 10dB above the set threshold. Above such level (10dB) a hard knee compression will be applied. -
Page 10: The Rear Panel
4dBu 4dBu 10dBV 10dBV 10dBV RETURN SEND RETURN SEND RETURN SEND CHANNEL 7 CHANNEL 6 CHANNEL 5 Pic.6: Pear Panel Of The CLE8.0 INPUT INPUT INPUT OUTPUT OUTPUT OUTPUT OPERATING LEVEL OPERATING LEVEL OPERATING LEVEL 4dBu 4dBu 4dBu 10dBV 10dBV... -
Page 11: Ready To Roll
4. READY TO ROLL? 4.1 Expander/Gate Section As we told you previously in this Manual the downward expander will reduce automatically the level of the audio signal when such signal is below a set threshold. So the expander is the opposite of the compressor/limiter. We also explained to you how the ratio curve of the expander is flat while a noise gate it is more brutal processor: It simply cut-off the entire signal below a certain set threshold. - Page 12 If you have a ratio of 2:1 this means that for every 2dB increase of the input level (above threshold) you will get an increase of output level of 1dB. ON the same way, a ratio of 10:1 means that for every 10dB increase of the input level (above threshold) you will get an increase in output level equal to 1dB, and so on.
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Page 13: Peak Limiter Section
Chart.6: The effect of a compressor can be expressed as the amount of gain reduction that is taking place for any given input 4.3 Peak Limiter Section How fast is the compressor to react to a signal which is above the threshold point? This is determined by the attack time. - Page 14 a. Wiring Configuration Both types of connectors available on CLE 8.0 can be wired in balanced and unbalanced modes. Please see following drawing for details: For 1/4" Phone jack Sleeve TS Type Unbalanced For XLR connector Pin2 (+) Pin3 (-) (Linked to Pin1 manually, Pin1 ( ) XLR Type Unbalanced...
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Page 15: Rack Mounting
c. Insert Points Connection In case you are using the main inserts of your mixing console and you have a single jack for SEND and RETURN, you can use an insert Y cable . Please see following drawing. 1/4" TRS insert Insert Leads TIP RING SLEEVE TIP RING SLEEVE... -
Page 16: Technical Specifications
6. TECHNICAL SPECIFICATIONS INPUT OUTPUT RETURN SEND SYSTEM SPECIFICATIONS EXPANDER/GATE SECTION COMPRESSOR SECTION PEAK LIMITER SECTION Type Active balanced XLR and 1/4"JACK Impedance Balanced >50KOhm, Unbalanced>25KOhm Operating level +4dBu/ 10dBV Max input level +21dBu balanced and unbalanced Typically>55dB at 1KHz CMRR Type XLR and 1/4"... - Page 17 FUNCTION SWITCHES SMART SC FILTER AUTO I/O METER BYPASS OPERATING LEVEL LINK INDICATORS GAIN REDUCTION INPUT/OUTPUT LEVEL Expander/Gate Threshold Compressor Threshold Peak Limiter Threshold Function switch POWER SUPPLY Mains Voltages Fuse Power consumption Mains Connection PHYSICAL Dimension Net Weight Enables the "Smart Knee Control" characteristics. Allows for frequency dependent processing.
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Page 18: 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 19 SEIKAKU TECHNICAL GROUP LIMITED No. 1, Lane 17, Sec. 2, Han Shi W. Road, Taichung, 401 Taiwan http://www.altomobile.com 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.