STUDIO
Owner’s Manual
Studio Series
Power Amplifier
A.R.P.A. OF AMERICA CORP.
MADE IN MODESTO, CA U.S.A.
Contents
Introduction What is the Studio 50? 2
Features Studio 50 Key Features 3
Unpacking Unpacking the Studio 50 4
Wiring Power Wiring 5
Signal Wiring 6
Warnings System Precautions 7
Specifications Power And Performance 8
Help Technical Assistance 9
Curves Power Vs. Distortion 10
Manufacturing How This Product Is Built 11
1
What is the Studio 50?
Thank you for purchasing a ZAPCO product! This product has
been hand-crafted in the USA with the attention to detail and
quality that has made ZAPCO a legend in the car audio
industry. You can be sure that you have purchased one of the
highest quality car stereo components available anywhere in
the world today.
The Studio 50 is a stereo/two-channel amplifier that is
conservatively rated at 50 watts. It can produce 25 watts per
channel into a four ohm load and 50 watts per channel into a 2
ohm load.
The power supply in the Studio 50 is a new design that
dramatically increases power and efficiency. New Gate Drive
Boost circuitry greatly improves the MOSFET switching
performance and allows for cooler operation.
2
Studio 50 Key Features
• Low T.I.M. & Harmonic distortion.
• Low global feedback.
• 100% symmetrical, discrete power amplifier circuitry.
• Can drive highly reactive loads.
• Gold plated power, RCA and speaker connectors.
• Gate Drive Boost circuitry maximizes power supply
efficiency and improves overall performance.
• Separate LED’s for power and protection.
• Short circuit, high temperature, reverse voltage, DC offset
and over-voltage protection.
• Load stability down to two ohms.
• Four 25-ampere bipolar amplifier output transistors.
• Two 50-ampere MOSFET switching transistors.
• Precision 1% resistors used throughout.
• Low radiated noise for clean AM/FM reception.
• Quality ZAPCO construction.
• Designed and manufactured in the U.S.A.
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