Differential Inputs, Fusing | Clarion A600.2, A404.2, A300.2, A1200.2

The advanced protection circuit

was developed to prevent shut-

Watts

100

off due to the fluctuating imped-

ance loads presented by today's

complex speaker systems. The

adaptive circuit optimizes output 50

power to maintain uninterrupted

operation whenever the amplifi-

er senses an impedance load of 25

less than 2 ohms. A low imped-

ance indicator (Diagnostic

Ohms

L.E.D. ) is provided to let you

0.5

Figure A:

AM II Protection

Circuitry

know when the amplifier is oper-

Output Power vs. Impedance

ating in this mode. It is important

to note that there is no increase in output power below the 2 Ohm threshold. Maximum power is achieved at 2 Ohms. AM III provides you the satisfaction of know- ing that your ArtSeries amplifier will continue to play when momentary impedance dips occur. (Refer to figure A)

In the case of a short circuit, AM III will engage to protect the shorted channel but will continue to play the unaffected channel. When this occurs, audible distortion will be heard. Turn off the system and repair this short. Once the problem has been repaired, the amplifier will return to normal operation.

Differential Inputs

One of the obstacles that must be overcome when designing a mobile audio system is that of external interference caused by alternators, generators, and other electrical subsystems. In other amplifiers, all input grounds are wired directly into the speaker ground, as shown in Figure B. The ArtSeries amplifiers, on the other hand, have iso- lation resistors between the input grounds and the speaker ground. This helps to pre- vent alternator noise from interfering with the signal between this unit and any prior "upstream" units.

Discrete Power Amp Circuitry

Exclusive use of discrete output transistors results in increased sonic transparency, outstanding dynamic range, and high instantaneous current capability. We've designed the power bandwidth to be from 10Hz to 50,000Hz +/- 1dB. This ability to produce full power with linear frequency response well beyond the threshold of human hearing insures that the amplifier's performance over the musical spectrum will be flawless.

The ArtSeries amplifiers are capable of operation into a two Ohm load in a stereo configuration and a four Ohm load in a bridge mono configuration. However, for optimum performance a four Ohm load in stereo and an eight Ohm load in mono are recommended. Refer to the Section on System Design for more information.

PPI's Exclusive Wire Connection System

Over the years, advances in mobile audio electronics have changed the demands placed on the type and size of wire needed to create a high-performance mobile audio system. To meet this need, PPI has created an exclusive wire connection system. This unique, removable connection system offers the versatility of terminal strips, the convenience of quick connect / disconnect style connectors, and the reliability afforded by direct connection to the circuit board. The power and ground connector will accept cable up to 6 gauge in size. The speaker/ remote tum-on connector will accept cables up to 10 gauge in size. Refer to the Section on Installation for more information.

Fusing

The Art Series amplifier is protected from current over-load situations by a blade fuse (Maxi - Fuse ). This type of fuse has a number of advantages. First it's available in higher values, and its single element design is more effective than using two fuses of lower value. Second, we could board mount it. This eliminates the use of ‘jumperwires’ (from the end-panel to the circuit board) which improves reliability. Finally, they are readily available from any auto-supply store and are easy to service. The A100 & A200 use a 20 Amp fuse, the A300 - a 30 Amp fuse, the A600 - a 50 Amp fuse and the A1200 - 2 - 60 Amp fuses.

For safety reasons, PPI recommends that the power cable be fused at the positive terminal of the battery. If this fuse (not-supplied) is not installed, and the power wire shorts to ground (between the battery and the amplifier), a fire can result. The fuse at the battery should be of the same value as the fuse supplied with the amplifier. Consult your Authorized PPI Dealer for an appropriate in-line fuse that meets the needs of your installation.

Installation

PRIOR TO INSTALLATION of your new ArtSeries Amplifier it is important to consider the following: In your profession, your abilities and expertise insure a job well done. This is also true of professional car audio installers. It is their chosen profession, and why they do best. PPI believes so strongly in it's responsibility to you, that we invest heavily in hands-on training of professional installers. Our comprehensive system design and installation seminar provides our authorized dealers with the latest tech- niques to deal with the complexities of car audio today. There is more than meets the eye to insure that a car stereo reaches it's fullest potential. The trained professional, through experience, can approach, recognize, and address all the needs of the mobile audio environment. PPI highly recommends that this amplifier and/or any other mobile audio equipment be installed by a trained professional.

A200.2, A204.2, A100.2, A1200.2, A300.2 specifications

The Clarion A-Series amplifiers, including the A300.2, A1200.2, A200.2, A600.2, and A404.2, are designed to enhance the audio experience in vehicles. Each model in this series offers unique features, technologies, and characteristics that cater to different audio needs and preferences.

The Clarion A300.2 is a compact yet powerful amplifier, capable of delivering 75 watts per channel at 4 ohms and up to 150 watts per channel at 2 ohms. It features a high-quality aluminum heat sink that ensures efficient heat dissipation, which enhances longevity and performance. This model also includes a built-in low-pass filter, which allows users to tailor their sound experience by controlling the frequency range being amplified.

Next in the lineup is the A1200.2, which is geared towards audiophiles seeking deeper bass and superior sound fidelity. This amplifier pushes out 120 watts per channel at 4 ohms and 240 watts at 2 ohms. One of its standout features is the variable bass boost, allowing users to adjust the low-frequency response to suit their listening preferences. The A1200.2 also integrates a sophisticated speaker-level input for easy installation in factory systems.

The A200.2 is oriented towards smaller setups and narrower spaces, offering 50 watts per channel at 4 ohms and 100 watts at 2 ohms. Its compact design doesn’t compromise on power, making it an excellent choice for those looking to build a more modest but high-quality audio system. It features a low-pass filter and high-pass filter, allowing for flexibility in system configurations.

Moving on to the A600.2, this amplifier is designed for larger audio systems. Delivering an impressive 300 watts per channel at 2 ohms, it accommodates a wide range of speaker setups. The A600.2 boasts exceptional sound clarity, thanks to its advanced circuit design that minimizes noise interference. It includes an adjustable crossover, enabling users to fine-tune the frequency ranges for optimal sound performance.

Lastly, the A404.2 is a versatile four-channel amplifier that can be utilized for both full-range speakers and subwoofers. Delivering 75 watts per channel at 4 ohms and 150 watts at 2 ohms, the A404.2 offers flexibility for different configurations. Its bridgeable channels make it possible to convert the four channels into two powerful outputs, perfect for driving larger subwoofers.

In summary, the Clarion A-Series amplifiers provide an array of features catering to diverse audio requirements. With a focus on sound clarity, flexible configurations, and efficient designs, these amplifiers are suitable for anyone looking to elevate their vehicle's audio system.