RDL STICK-ON Serie Manual De Instrucciones

STICK-ON
®
Model ST-PA18
Audio Power Amplifier

18 Watts RMS Audio Power Amplifier

Output for 8 Ohm Speaker

Maximized Audio Level at Full Power Output

Superior Audio Quality at High Output Levels

Line Level Balanced or Unbalanced Input

LOOP OUT to Feed Additional Amplifiers

Integral Audio Compressor to Control Clipping

High Overall Audio Operating Level

LED to Indicate Audio Compression
The ST-PA18 is a utility power amplifier in the convenient line of STICK-ON products. The durable bottom adhesive permits quick, permanent or
removable mounting nearly anywhere, or it may be used with RDL's racking accessories. The ST-PA18 gives you the advantages of a quality,
high efficiency audio power amplifier with the added convenience of STICK-ONs! STICK-ONs are designed, built and rated for continuous duty in
professional A/V systems.
APPLICATION: The ST-PA18 is the ideal choice in many applications where a high quality utility amplifier
is needed to drive an 8  speaker.
The ST-PA18 features a balanced line level input that may be connected unbalanced. The gain control
range will accommodate standard unbalanced levels as well as professional balanced levels. The module
bridges the input signal. LOOP OUT terminals permit a balanced input to be fed to additional amplifier
modules making the ST-PA18 an ideal component in distributed audio system design. The LOOP OUT
may also be used to feed a subwoofer amplifier (see RDL ST-CX2S Subwoofer Filter). The ST-PA18
output will drive an 8  speaker or multiple speakers connected to present an 8  load to the amplifier and
it is capable of driving 4  loads. The ST-PA18 equipped with specialized audio circuitry to prevent
clipping and to remove artifacts associated with Class D or similar class switch-mode amplifiers.
A red COMP LED is provided to indicate the threshold of the integral compressor. Audio levels that could
cause the amplified output to clip are compressed according to two dynamic time constants. Normal audio
level signals remain unaffected by the compressor thereby preserving audio dynamics and preventing the
compressor from increasing feedback potential when the amplifier is used for paging. The compressor is
designed to remain aurally transparent while maintaining clean, unclipped amplified audio for input
overloads of up to 20 dB. The ST-PA18 produces average audio levels and audio clarity normally
expected of amplifiers delivering much higher output power.
The ST-PA18 operates from an external 24 VDC 1A power supply, sold separately. A POWER LED
illuminates when the module is powered. The module provides thermal and output short-circuit protection.
Wherever an ultra-compact, high quality, high efficiency audio power amplifier is needed to provide
reliability, compactness and unsurpassed versatility, the ST-PA18 is the ideal choice. Use the ST-PA18
individually, or combine it with other RDL products as part of a complete audio/video system.
th

RDL 659 6
SERIES

St. Prescott, AZ., USA 86301
 
(928) 443-9391 FAX (928) 443-9392

www.rdlnet.com