Panasonic Ramsa WS-A240

SUBWOOFER SYSTEM
WS-A240
(Subwoofer)
WS-SP2A
(Subwoofer Processor)
I WS-SpPA | i Ng
Panasonic.
Instructions
Please read these insiructons completely before operating is equipment.
WS-AZ40
RP PPS
The RAMSA Subwoofer System consists af the mode W5- The WS-4240 enclosure is maed from a resin that is
A240 Subwoofer and the model WS-SP24 Subwoofer virtually indestructable and incorporates a recessed handle,
Processor. interlocking stacking ribs and internal mounting hardware
for convenient transport and installation. & metal grill cover
The WS-4240 is a bass-reflex type loudspeaker system in provides protection for the driver component.
corporating a 12" (30-cm) driver unit, It is designed to be
used as a madular subwoofer component along with the The WS-SP2A is designed specifically for use with the W3-
WS-SP24 subwoofer processor, which includes signal A240 loudspeaker system in VLF (subwoofer) applications.
processing far subwoofers and the main loudspeakers. Two balanced inputs and four unbalanced outputs are
provided Output channels A and B include three selecta
WS-A240 subwoofers are small in size for their output capa- ble signal processing modes for use with different main
bility, and may be combined in compact arrays to take max- loudspeaker units.
imum advantage of mutual coupling effects far high autput
applications. The compact dimensions of the WS-4240 al- The subwoofer output is derived from an isolated sum of
low it to be unobtrusively installed in virtually any en- the A and E inputs, and includes a high pass filter, signal
vironment, processing far the WS-A240 and selectable low pass filters
with 240B per octave Bessel response for each of three
The WS-A240 will accept a continuous program input of different main loudspeaker types. The VLF (subwoofer)
AQOW. The WS-SPZA provides high-pass protection from output includes à fixed gain stage to optimize sensitivity
infrasonie frequencies, very low frequency (WLF) signal in the WLF range. The WS-SP24 Subwoofer Processor also
nrocessing, and a choice af three different signal process- provides a full-range summed output, which may be used
ing functions for two channels of main loudspeaker ta drive distributed system power amplitiers.
systems.

Panasonic Ramsa WS-A240 Specifications

General

Power Output	240W
Input Impedance	10k ohms
Impedance	8 ohms
Type	Subwoofer
Driver Size	15"
Input Connectors	XLR, 1/4" TRS
Output Connectors	XLR, 1/4" TRS

Summary

GENERAL

WS-A240 Subwoofer System Overview

Describes the WS-A240 as a bass-reflex, 12" driver subwoofer, its compact size and modular use.

WS-SP2 A Subwoofer Processor Functions

Details the WS-SP2A's role in signal processing, high-pass protection, and selectable modes for main speakers.

Safety and Cautionary Information

Electrical Shock Hazard Warnings

Warns against opening the unit to prevent electric shock and highlights that there are no user-serviceable parts inside.

Safety Symbol Explanations

Explains the meaning of the lightning flash and exclamation point symbols used in the manual for user safety.

Names of Components

WS-A240 Component Identification

Identifies key physical features of the WS-A240 subwoofer, including mounting holes, ports, grille, and speaker size.

WS-SP2 A Component Identification

Identifies key physical features of the WS-SP2A processor, including power indicators, switches, inputs, and outputs.

Loudspeaker Installation and Connection

WS-A240 Mounting and Orientation

Details mounting options using inserts, thumbscrews, eye-bolts, and horizontal/vertical orientation.

Pre-Connection System Checks

Advises on power management, speaker impedance, cable gauge, and polarity before connecting the system.

WS-A240 Power Handling

Specifies the 400W rating and mechanical limitations, highlighting the role of the WS-SP2A's high-pass filter.

Operational Cautions for Loudspeaker Protection

Lists five specific conditions to avoid to prevent driver diaphragm damage from excessive displacement.

Speaker Cable Connections

Connecting via Push-Terminals

Provides instructions for using push-terminals, including cable gauge and stranded wire handling.

Connecting via Phone Jacks

Provides instructions for using phone jacks and TS plugs, emphasizing polarity matching.

Parallel Speaker Wiring Guide

Details how to connect multiple speakers in parallel, covering impedance and amplifier load considerations.

XLR Connector Installation

Professional XLR Connector Setup

Step-by-step guide for replacing phone jacks with XLR connectors for professional audio applications.

WS-SP2 A System Configuration and Performance

WS-SP2 A Block Diagram Explained

Illustrates the internal signal flow and processing of the WS-SP2A processor.

Subwoofer System Performance Metrics

Discusses frequency response, power capacity, and compact array benefits for the subwoofer system.

Rack Mounting Options

Single and Dual Unit Rack Installation

Describes the procedures and parts needed for mounting one or two processors in a standard rack.

Typical Applications

System A: Compact Speaker Setup

Illustrates a system configuration using WS-A10 main speakers and a WS-A240 subwoofer.

System E Configuration

System F Configuration

System B Configuration

System C Configuration

System D Configuration

WS-A240 Subwoofer Specifications

WS-SP2 A Subwoofer Processor Specifications

Service Personnel Guidelines

Selecting Signal Processing Modes

Recommended Function Selector Settings

Product Appearance and Dimensions

WS-A240 Physical Dimensions

Displays detailed dimensional drawings and mounting hole locations for the WS-A240.

WS-SP2 A Physical Dimensions

Displays detailed dimensional drawings and connector layout for the WS-SP2A.