Instruction/ maintenance manual of the product CLE2.0 Nilfisk-ALTO
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User's Manual LTO R www .altoproaudio.com V ersion 2.0 Dec. 2002 English COMPRESSOR /LIMITER /GA TE CLE2.0.
1 SAFETY RELA TED 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.
PREF ACE Dear Customer: Thanks for choosing L TO CLE 2.0 Compressor/Limter/Gate and thanks for choosing one of the results of L TO AUDIO TEAM job and researches. For our L TO AUDIO TEAM, music and sound are more then a job... are first of all passion and let us say .
T ABLE OF CONTENTS 1. INTRODUCTION........................................................................................................................................4 2.1 Some technical stuff 2. THE CONCEPT BEHIND.................................
1. INTRODUCTION Y ou are now the Owner of an CLE 2.0 Compressor/Limiter/Gate. The CLE 2.0 is a very powerful dynamic processor . LT O We have included in it several innovative circuit designs that make the CLE 2.
5 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.
6 2.1.4 More about noise: Expanders and Noise-Gates A lot of instruments such as microphones, amplifiers, guitar pickups, etc generate some noise, either at low frequ- encies (hum) or at high frequencies (hiss) such noise will inevitably interfere with the quality of your audio signal.
3.2 Compressor Section 5. Threshold Control This control adjusts the threshold level for the Compressor section in the range of -40dBu to +20dBu. The SKC (Smart Knee Control) is applied to the audio signal, which is a maximum of 10dB above the set threshold.
13. SC Monitor Switch Y ou can connect the sidechain control signal to the audio output by mean of this switch and at the same time you will also mute the audio input. In this way you can also monitor the sidechain signal being returned via external signal processors.
23. AC Inlet This connector is meant for the connection of the supplied main cord. Do not insert power cord into unit until voltage has been correctly set.
10 27. Sidechain Send Through this 1/4" unbalanced jack the audio signal can be routed to an external processor . 28. Sidechain Return The return signal of an external processor will be processed through this 1/4" jack. 4. READY TO ROLL? 4.1 Expander/Gate Section Chart.
11 4.2.2 Ratio control This control sets the change of input level to output level but only for the signals that exceed the threshold. The scale of the ratio control on the front panel (calibrated in dB) indicates how much input level is required to increase the output level by 1 dB.
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. A longer attack time is advisable to process low frequencies while shorter attack time is preferable for high frequencies.
13 a. Wiring Configuration Both types of connectors available on CLE 2.0 can be wired in balanced and unbalanced modes. Please see following drawing for details: For 1/4" Phone jack For XLR connector b. In Line Connection Please see following drawing for details.
Send Return Ti p Ring Sleeve 14 1/4" TRS insert Insert Leads 5.3 Rack ounting M The most secure mounting is on a universal rack shelf available from various rack manufactures or your music dealer . The CLE 2.0 Compressor /Limiter /Gate fits into one standard 19" rack unit of space.
15 AUDIO INPUT AUDIO OUTPUT SC INPUT SC OUTPUT EXP ANDER/GA TE SECTION Interactive Compressor 6. TECHNICAL SPECIFICA TIONS T ype Impedance Maximum input level T ype Impedance Maximum output level Band.
INDICA TORS POWER SUPPL Y DIMENSIONS WEIGHT POWER CONSUMPTION GAIN REDUCTION: 12 element LED INPUT / OUTPUT LEVEL: 8 element LED EXP ANDER/GA TE THRESHOLD: 2 element LED ( under"+" above&quo.
17 7. W ARRANTY 1. W ARRANTY REGISTRA TION CARD T o obtain Warranty Service, the buyer should first fill out and return the enclosed W arranty Registration Card within 10 days of the Purchase Date.
SEKAKU ELECTRON IND. CO., L TD NO.1, LANE 17, SEC. 2, HAN SHI WEST ROAD, T AICHUNG, 401 T AIWAN http://www .altoproaudio.com T el:886-4-22313737 email: alto@altoproaudio.com Fax:886-4-22346757 All rights reserved to AL TO. All features and content might be changed without prior notice.
An important point after buying a device Nilfisk-ALTO CLE2.0 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Nilfisk-ALTO CLE2.0 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Nilfisk-ALTO CLE2.0 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Nilfisk-ALTO CLE2.0 you will learn all the available features of the product, as well as information on its operation. The information that you get Nilfisk-ALTO CLE2.0 will certainly help you make a decision on the purchase.
If you already are a holder of Nilfisk-ALTO CLE2.0, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Nilfisk-ALTO CLE2.0.
However, one of the most important roles played by the user manual is to help in solving problems with Nilfisk-ALTO CLE2.0. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Nilfisk-ALTO CLE2.0 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
