Crate Pro Audio SPA-200 User Manual

Congratulations. You have selected one of the finest pieces of sound reinforcement equipment available – the Crate Pro
Audio SPA-200 Rack Mounted Amplifier. Our many years of experience in high-performance musician’s equipment, com-
bined with our extensive research and development procedures, have enabled us to produce an amplifier which provides
the highest quality and reliability possible.
Like all Crate products, your amplifier was Musician Made in the U.S.A., using only the finest components and materi-
als. Each amplifier design must satisfy our team of highly-trained technicians and musicians before it is approved, and each
individual amplifier must pass a barrage of bench tests before it leaves the factory. We insist upon this extreme level of
quality control to insure that each amplifier produced will provide its owner with years of trouble-free, ear-pleasing perfor-
mance.
Your new amplifier is a flexible part of any sound system: simple to connect and easy to operate, if you first know how
to incorporate it into your application. Several configurations are covered in this manual, along with important information
regarding impedance ratings and output power. In order to get the best performance and highest level of quality and relia-
bility from your new amplifier, please read this owner’s manual before operating the unit.
User’s Guide
for the
CRATE PRO AUDIO
SPA-200
Rack Mount
Power Amplifier

Crate Pro Audio SPA-200 Specifications

General

Type	Power Amplifier
Power Output	200 W
Channels	2
Frequency Response	20 Hz - 20 kHz
Weight	20 lbs
Power (Stereo)	100 W per channel
Power (Bridged)	200 W
Signal to Noise Ratio	> 100 dB
THD	< 0.1%
Damping Factor	> 200
Input Impedance	20 kΩ
Input Sensitivity	1V

Summary

Introduction and Product Overview

Front Panel Controls

Level Controls

Rotary potentiometers controlling gain for each channel, offering maximum sensitivity when fully clockwise.

Presence Controls

Rotary potentiometers that boost upper frequencies, adding 'presence' to the audio output.

Power Switch

Switch to turn the amplifier on and off; it illuminates when AC power is applied.

Rear Panel Connections and Controls

Fuse Holder

Protects the amplifier from power issues. Replace fuse only with the same size and type.

AC Line Input

Connects the amplifier to a properly grounded AC outlet using the heavy-duty power cord.

Speaker Output Jacks

Connect speakers in stereo or slave mode. Minimum load is 4 ohms total per channel.

Mono Bridge Output

Connect speakers in Mono Bridge mode. Minimum load is 8 ohms total.

Mono Bridge/Stereo Switch

Selects amplifier mode: 'out' for Stereo, 'in' for Mono Bridge mode.

Damping Switch

Adjusts amplifier performance for PA/music (High) or guitar/bass (Low) applications.

Input Jacks

Accepts unbalanced line level signal sources via 1/4" phone plugs.

Parallel Output Jacks

Allows connection to additional amplifiers or slave operation, mirroring input signals.

Technical Specifications

Safety Warnings and Precautions

General Safety Guidelines

Ensures safe and reliable operation by following precautionary guidelines.

Electrical Hazard Warnings

Warnings regarding electric shock, not opening chassis, and proper grounding.

Environmental Exposure Warning

Caution against exposing the equipment to rain or moisture to prevent fire or shock.

Hearing Protection Advisory

Advises caution and ear protection due to high sound pressure levels that can cause hearing loss.