Specifications

The Concept

of Integration

Why a Powered Loudspeaker?

Apogee’s powered speaker systems further the company’s original concept

of processor-based loudspeakers. By combining advanced electronic signal

processing with precisely matched amplifiers, and integrating this package

into the speaker enclosure itself, a number of engineering improvements

result. Some of these are:

• The internal signal processor corrects driver and enclosure anomalies, and

provides required crossovers, time-domain alignment, and protection cir-

cuits.

• The amplifier’s power output, headroom, frequency response and dynamic

range are optimized for each model of loudspeaker system.

• The gain structure of the signal processor and amplifiers are always per-

fectly matched.

• An integrated speaker system is able to use current sensors as well as

voltage sensors (VIProtect

™) to provide information to the processor’s

protection circuits.The result is more accurate control of the drivers’

mechanical and thermal limits, and therefore better protection under

abusive conditions.

• The amplifier output cables are kept to very short lengths, thereby reduc-

ing cable losses to nearly zero.

Introduction

Apogee Powered Loudspeaker Systems are highly-engineered products that

combine advanced-technology amplifiers, sophisticated signal processing, and

state-of-the-art drivers housed in rugged, roadworthy loudspeaker enclo-

sures. They are suitable for a wide variety of applications, ranging from

portable use for shows and events in all types of venues to permanent instal-

lations in auditoriums, churches, theaters, stadiums, meeting rooms, board-

rooms, and similar locations.

The APL-220, APL-500, and APL-800 are compact, bi-amplified speaker sys-

tems capable of providing clean, undistorted sound at very high output lev-

els. They easily form acoustically-correct arrays when used in multiples.

Although deceptively small in size, they are capable of fulfilling an astonish-

ingly wide range of professional sound reinforcement requirements due to

their wide-range response, predictable pattern control, excellent sonic qual-

ity, and easy arrayability.

Apogee powered products are exhaustively engineered and finely crafted.

They will provide years of trouble-free service if care is taken in their use and

maintenance. It is recommended that you read this manual and retain it in a

convenient location for future reference.