Panasonic RAMSA WS-AT350 - Manual (Page 3)

PREFACE
WS-AT300
• This speaker system is a 2-way bass-reflex type
incorporating a 38-cm (15”) woofer and a Square
Contour Wave Guide (SCWG) horn tweeter.
• The speaker system accepts a continuous program
input of 400 W or 200 W(RMS). It delivers high
outputs from its compact body with a maximum
sound pressure level of 122 dB.
• The SCWG horn minimizes the disturbing reflection
sound generated near the open end and to provide
a constant directivity of 60‘ (horizontal) and 40“
(vertical). You can easily attach again the horn to
the enclosure by turning it 90' as required for
horizontal or vertical speaker installation,
• The enclosure has essential features such as
toughness to transportation, a recessed type
handle for carrying, the convex and concave for
stacking, holes for mounting bracket, safety wires,
etc.
WS-AT350
• This Subwoofer is a bass-reflex type incorporating
a 38-cm (15”) cone speaker and to be used with
the RAMSA Subwoofer Processor WS-SP2A.
• The WS-AT350 accepts an input of 400 W (RMS). It
delivers high outputs, though it is small in size, with
a maximum sound pressure level of 118 dB.
• The enclosure has essential features such as
toughness to transportation, a recessed type
handle for carrying, the convex and concave for
stacking, holes for mounting bracket, safety wires,
etc.
PRECAUTIONS
Power loss may increase as the total speaker
impedance gets lower with a number of speaker
hookups. Use the largest speaker cable in wire
gauge to reduce power ioss.
Switch off the power amplifiers before connecting
the speakers or other peripherals.
Avoid the followings all the time to protect the
speakers from damage.
• Turning on and off mixing consoles and other
peripherals may cause shock noise when the'
amplifiers and subwoofer processor are on.
• Shock noise resulting from the connection/
disconnection of inputs/outputs with any
powered-up equipment
• Pop noise from microphones without
appropriate use of breath-pop screen and/or
high-pass filter
• Click noise caused by switching on or off the
phantom power for microphones
• Continuous operation at very low frequency
from an oscillator, synthesizer or program
sources
• High frequency noise deveioped by fast-
forward or fast-rewind operation of a tapedeck
■ Out of tune noise in FM broadcast
• Feed-back from microphones or electronics
musical instruments.
Match the polarities of all the speakers by
observing the connectors and wire colors when
using two or more speakers.
Read “PROTECTION CIRCUITS" on page 8. Turn
down the volume control of the amplifier
immediately if the sound suddenly decreases.
You should use the WS-AT350 Subwoofer all the
time with Subwoofer Processor WS-SP2A. The WS-
SP2A processes the signal to protect the speakers
from damage due to an excessive input signal.
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