RBH Sound A-605/70 User Manual

A-605/70

In-ceiling 2-way Speaker

(8 Ohm 70/100 Volt Ready)

O w n e r ’ s M a n u a l

Introduction

Congratulations on your purchase of RBH Sound A-605/70 In-ceiling 2-way speaker!
Your speaker is the result of many years of research and development dedicated to
producing high quality products for home audio and audio/video systems.

This manual contains features, setup recommendations and specifications for the
RBH Sound A-605/70 In-ceiling 2-way (8 Ohm 70/100 Volt Ready) speaker. It is
recommended you thoroughly read through the material contained in this manual
before connecting your speakers. This will ensure you have a good understanding
of how to install your speakers for optimum performance; allowing for years of
listening enjoyment.

A-605/70 In-ceiling 2-way Speaker

Break In Period

Allow several hours of listening time to adequately break in the speaker. As the
speaker breaks in, the driver suspension will loosen. The result of break-in will be
an increase in low frequency response, improved definition, clar ity and detail.

Safety Compliance

Complies with the requirements of UL-2043 fire tests for heat and visible smoke
and visible smoke release for discrete products and the accessories installed in
air handling spaces, NFPA-70 National Electric Code 2002, Article 300-22 (C), and
NFPA-90A installation of air conditioning and ventilation systems, Section 2-3.10.1
(a), Exception 3, Listed UL1480 Speakers for Professional/Commercial use.

These products are in compliance with the EMC Directive 89/336/EEC and
Art icle 10 (1) of the directive, in compliance with Technical Regulations
EN55013-1 and EN50082-1.

1

Features

The A-605/70 is the budget-minded answer for both residential and commercial
in-ceiling speaker applications. The A-605/70 employs an 6½-inch polygraphite
woofer cone and a ¾-inch soft swivel dome tweeter for great sound on a budget.
Other amenities include a UL listed integral rear enclosure and a built-in multi-tap
transformer, enabling the A-605/70 to be used with either 8 Ohm or 70/100 Volt
audio systems. The A-605/70 provides full-range performance while exceeding
building code compliance. The metal enclosure reinforces bass frequencies allowing
a deeper and more controlled bass response. A powerful magnet, ensures accurate
dynamic reproduction.

Steep acoustic slope crossovers are used to integrate dr ivers. The use of steep
crossover slopes allows high power handling, minimizes dr iver interaction anomalies,
and maximizes the clarity with which each driver is able to produce its respective
frequency band. Sophisticated computer modeling techniques are used extensively in
the RBH Sound speaker design process.

A switch connected to the tweeter allows you to custom tailor the sound to your
tastes. This switch is located next to the woofer on the front baf fle of the speaker
and has three positions: +3dB, 0dB, -3dB. The +3dB position increases output of
the tweeter, the -3dB position decreases the output of the tweeter relative to the
woofer. The 0dB position is the factory setting and generally provides the most
natural response from the speaker.

The use of a 70/100 volt transformer allows many speakers to be used together by running
a connecting wire from one speaker to the next, without concern for the impedance seen
by the amplifier. A 70/100 volt amplifier must be used to accomplish this.

WARNING: Refer to the installation and wiring diagrams sections to properly install
a 70 volt system.

Installation

IMPORTANT: This product must be installed in accordance with your local area’s
building codes and regulations. This may require use of an additional support bracket,
depending on the installation. The speaker
has been encased in a back can with the
terminals on the outside of the back can
for easy installation.

1. To install the wire push the end of
the binding post in and run the wire
into the hole on top of the terminal,
then release the terminal to securely
attach wire to the speaker.

2