Tascam PA-30, Руководство пользователя

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The TASCAM PA-30 is a high-performance
professional audio power amplifier for nearfield studio
monitoring and low-level sound reinforcement. In
stereo mode, the PA-30 delivers 30 watts per channel
continuously into an 8 ohm load - with no more than
0.05% total harmonic distortion. For applications
requiring higher output power, the unit may be
operated in BTL (Balanced Transformerless) mode -
also known as 'bridged' operation - and will deliver a
full 60 watts continuously into 8 ohms (see the 'BTL
Operation' section of this manual on page 9). In either
mode, it exhibits a flat frequency response
characteristic from 20 Hz to 20 kllz (+0, –1dB), with
very low residual hum and noise.
For maximum flexibility, the PA-30 is equipped with
both XLR-type balanced and RCA-type unbalanced
input connectors. These accommodate nominal input
signal operating levels of +4 dBm and –10 dBV,
respectively essentially eliminating the necessity for
external compensating pads or gain stages. A single,
continuously variable INPUT LEVEL control
attenuates input signals so the unit's sensitivity can be
calibrated to the gain structure of the source equipment.
The PA-30 is designed and built to provide years of
trouble-free service with little or no maintenance. Its
well built power transformer easily handles continuous
full-power operation, and all power semiconductor
circuits are mounted on a large convection-cooled
heatsink. Multiple resettable electronic protection circuits guard
against destructive turn-on transients, output overload,
DC offsets and output shorts.
While the PA-30 is almost indestructible, it has been
engineered to be easy to service. Like all TASCAM
professional products, it is backed by a worldwide
network of TASCAM dealers and TEAC authorized
TASCAM service centers.
Connection and operation of the PA-30 is simple and
straightforward. This manual presents a detailed
description of the unit's features, along with basic
connection instructions and specifications. Please take
a few moments to study it before connecting and
operating your PA-30 Power Amplifier.
TABLE OF CONTENTS
Introduction................................................................. 2
Important Safety Instructions ..................................... 3
Summary of Operating Precautions............................ 4
Features....................................................................... 5
Connection & Installation........................................... 7
BTL Operation............................................................ 9
Specifications............................................................ 10
Introduction
2
TASCAM PA-30
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The exclamation point within an equilateral triangle is intended to alert the user to the pres-
ence of important operating and maintenance (servicing) instructions in the literature
accompanying the appliance.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert
the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of electric shock to persons.
This appliance has a serial number
located on the rear panel. Please record
the model number and serial number
and retain them for your records.
Model number
Serial number
Ü
ÿ
Ÿ
WARNING: TO PREVENT FIRE OR SHOCK
HAZARD, DO NOT EXPOSE THIS
APPLIANCE TO RAIN OR MOISTURE.