Alto ACL2 Pro User Manual

User's ManualCOMPRESSOR /LIMITER /GATEACL2 PROLTORwww.altoproaudio.comVersion 1.1 September 2005English

THIS IS SET FOR110V AC TO 120VAC OPERATIONTHIS IS SET FOR220V AC TO 240VAC OPERATION220-240V110-120V110-120V220-240V3.4 Connectors on The Rear PanelPi

1027. Sidechain SendThrough this 1/4" unbalanced jack the audio signal can be routed to an external processor.28. Sidechain ReturnThe return sign

114.2.2 Ratio controlThis control sets the change of input level to output level but only for the signals that exceed the threshold.The scale of the r

Chart. 7 SGC characteristic of the limiter section5. INSTALLATION AND CONNECTION5.1 Mains ConnectionACL2 PRO is provided with dual voltage plug. You m

13a. Wiring ConfigurationBoth types of connectors available on can be wired in balanced and unbalanced modes.ACL2 PROPlease see following drawing for

SendReturnTipRingSleeve141/4" TRS insertInsert Leads5.3 Rack ountingMThe most secure mounting is on a universal rack shelf available from various

15AUDIO INPUTAUDIO OUTPUTSC RETURNSC SENDEXPANDER/GATE SECTIONSmart knee control compressor6. TECHNICAL SPECIFICATIONSTypeImpedanceMaximum input level

INDICATORSPOWER SUPPLYDIMENSIONSWEIGHTPOWER CONSUMPTIONGAIN REDUCTION: 12 element LEDINPUT / OUTPUT LEVEL: 8 element LEDEXPANDER/GATE THRESHOLD: 2 ele

177. WARRANTY1. WARRANTY REGISTRATION CARDTo obtain Warranty Service, the buyer should first fill out and return the enclosed Warranty Registration Ca

No. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwanhttp://www.altoproaudio.com Tel: 886-4-22313737email: [email protected] Fax: 886-

1SAFETY RELATED SYMBOLSCAUTIONRISK OF ELECTRIC SHOCKDO NOT OPENThis symbol, wherever used, alerts you to the pre-sence of un-insulated and dangerous v

PREFACEDear Customer:Thanks for choosing LTOACL2 PRO Compressor/Limter/Gate and thanks for choosing one of the results of LTO AUDIOTEAM job and resear

TABLE OF CONTENTS1. INTRODUCTION...

1. INTRODUCTIONYou are now the Owner of an Compressor/Limiter/Gate. The is a very powerful dynamicLTO ACL2 PRO ACL2 PROprocessor. ACL2 PROWe have incl

52.1.2 Introducing Audio DynamicsThe human ear can detect the noise generated by falling leaves as well as the roar generated by the takingoff space s

62.1.4 More about noise: Expanders and Noise-GatesA lot of instruments such as microphones, amplifiers, guitar pickups, etc generate some noise, eithe

5. Threshold ControlThis control adjusts the threshold level for the Compressor section in the range of -40dBu to +20dBu. The SKC(Smart Knee Control)

Pic. 4 Controls of the Peak Limiter section20. Threshold ControlThe threshold level of the Peak Limiter is adjusted by this control.21. Limiter LEDThi