Precision Power A100 - Manual (Page 5)

Technical Specifications
Art Series Model: A100 A200 A300 A600 A1200
Continuous Power Output per Channel:
4 Ohms, 11-15 VDC, Stereo: 25 Watts 50 Watts 75 Watts 150 Watts 300 Watts
2 Ohms, 11-15 VDC, Stereo: 50 Watts 100 Watts 150 Watts 300 Watts 600 Watts
4 Ohms, 11-15 VDC, Bridged: 100 Watts 200 Watts 300 Watts 600 Watts 1200 Watts
Power Fuse: 20 Amp 20 Amp 30 Amp 40 Amp 100 Amp
Dimensions (inches): 2x9.25x6” 2x9.25x8.5” 2x9.25x10.6” 2x9.25x12” 2x9.25x24"
Shipping Weight: 6 lbs. 7 lbs. 8 lbs. 9 lbs. 14 lbs.
Common Specifications:
Power Bandwidth: 10 Hz -50 kHz
Total Harmonic Distortion: .02%
Input Sensitivity: .2 - 2.5 V
Input Impedance: 10k Ohms
Load Impedance (Stereo): 2 - 8 Ohms
Load Impedance (Bridged): 4 - 8 Ohms
Supply Voltage: 11 - 15 Volts
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About your New Art Series Amplifier
As a world leader in the design and manufacture of high-performance mobile amplifiers,
PrecisionPower, Inc.'s commitment to being: “Absolutely Start of the Art” demands that
we create products that offer high reliability and superior sound quality. To do this, we
must recognize and find solutions to the unique problems, which affect the performance
of electronics in the mobile environment.
At PPI, we build upon experience. We currently design and manufacture over 20
different amplifiers. Each is designed to be application specific, either in rated power,
number of channels, or with integrated accessories. This large reservoir of knowledge
has provided us with the innovative design solutions incorporated in the Art Series
Amplifiers.
As you review this section, keep in mind that the new features found in the Art Series
amplifiers directly influence their performance and, therefore, must be understood before
operation and / or installation. Please take a few minutes to review the following
information. The user benefit and operational parameters of the 'key' design features are
detailed below.
Pulse- Width Modulated (PWM) Switching Power Supply
The voltage supplied by an automobile's electrical system will vary depending upon the
number of accessories you are using. As you turn on / off various accessories (head-
lights, air conditioner, rear window defroster, power windows, etc) the voltage that your
car's electrical system is providing will change according to the demand. The Art Series
fully regulated power supply guarantees rated spec over a wide range of voltages (11
VDC to 15 VDC).
Our PWM supply offers high-efficiency. This efficiency translates into cooler operation.
The hostile environment of mobile audio presents a real problem for an amplifier to
operate properly. When an amplifier is running, it develops heat It is the job of the
heatsink to pull this heat away from the internal components. If the heatsink gets too hot,
the amplifier will modify its operation to protect itself from damage. The amplifier's ability
to maintain a proper operating temperature is oftentimes aggravated by the conditions
(ambient air temperature, mounting location, playing level, duration of operation, as well
as the load impedance) presented by the auto-sound environment. The Art Series PWM
power supply's high-efficiency means lower operating temperatures and a higher
tolerance for thermal control. The temperature protection circuit will engage at 75
degrees Celsius.
Heatsink Design
To understand why PPI created this unique heatsink design, it's important to understand
what purpose a heatsink serves and how it works.
When an amplifier operates, the internal components develop heat. This heat must be
transferred away from the components for them to operate properly. By securing the
components to the underside of the heatsink, the process of conduction transfers