PS Audio A-100 Should the unit be on all the time?, Are there any internal fuses?, Placement?

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Questions And Answers

Owner’s Reference A-100 Power Amplifier

Should the unit be on all the time?

The A-100 Power Amplifi er is best left powered on at all times. The current draw is negligible and keeping it powered on will make sure the internal AC capacitors stay working properly.

There is no harm in leaving the unit on at all times as the lifespan of the A-100 Power Amplifi er will be unaffected by leaving it on.

Are there any internal fuses?

There are no user replaceable internal fuses inside the A-100 Power Amplifi er. There is an internal fuse that should only be replaced by an authorized service center if needed. The components inside the A-100 Power Amplifi er have lethal voltages when powered and even when un-powered. Capacitors inside the A-100 Power Amplifi er can retain an electrical charge after the unit has been powered down. Do not attempt to get inside the unit for any reason unless instructed to do so by your dealer or an authorized service representative. Should the A-100 Power Amplifi er cease to function, contact your dealer or PS Audio’s service center for help.

Placement?

Placement of the A-100 Power Amplifi er is not critical. Placement with respect to other equipment

 

can be important. In general, place the A-100 Power Amplifi er close to the preamplifi er or surround

 

processor as possible. It is always preferable to have long speaker cables and short interconnects

 

if there is a distance problem. Long interconnect cables will degrade the performance of most

 

preamplifi ers, surround processors or integrated amplifi ers and receiver preamp outputs.

Isolation?

Isolation through the use of spikes, cones or Sorbothane feet is recommended for the A-100 Power

 

Amplifi er if space and budget allows. Isolation of any piece of high-end stereo and theater equipment

 

is always recommended wherever practical.

Do cables make a difference?

Power switch

Bi-amping

What speakers can I use?

Yes, cables make a difference. It is important to use the best power cables, interconnects and speaker cables when operating the A-100 Power Amplifi er.

There is only one power switch for the A-100 and it is located on the rear of the chassis.

To bi-amp with the Trio, you need only one interconnect (either XLR or RCA) to feed both channels of the Trio. Using the rear mounted switch, choose “mono” and use the left input. This will feed both the left and right channels with the same signal.

Benefi ts of bi-amping. Bi-amping is possible in two confi gurations, horizontal or vertical. Horizontal describes using one stereo amplifi er to power both woofer/midrange sections of a speaker and using the second stereo amplifi er to power both left and right loudspeaker tweeters. Vertical bi-amping describes the preferred method of bi-amping. This is where one stereo power amplifi er powers a single loudspeaker (either left or right). One channel of the stereo amplifi er feeds the tweeter of the loudspeaker and the other channel feeds the woofer midrange.

You can power nearly every loudspeaker made with a A-100 Power Amplifi er. It is relatively tolerant of most loudspeakers loads and will not be damaged by attempting to power heavy loads. If, while playing music, the A-100 Power Amplifi er continues to go into a protection mode when the music gets loud, it means that the speaker load is probably too diffi cult for the A-100 Power Amplifi er and the next

4826 Sterling Drive, Boulder, CO 80301

Questions and Answers 4

PH: 720.406.8946 service@psaudio.com www.psaudio.com

 

©2004 PS Audio International Inc. All rights reserved.

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Contents Introduction Owner’s ReferenceDocument Important Safety Instructions IntroductionTable Of Contents Thank you Cool and efficient running Power ratings What you can expectIsolation Power Cables Conditioners Getting StartedLocation Getting StartedQuick Start Guide Check for porper polarity Placement? Questions and AnswersShould the unit be on all the time? Are there any internal fuses?What voltages can the amp run on? Protection circuitry Does the amp require ventilation?Troubleshooting TroubleshootingFinding a ground loop Try a cheater plug Troubleshooting Warranty WarrantyConditions RemedyOutside the US Service ServiceIf you have problems Voltage changes Your serial number Your purchase information Date of purchase

A-100 specifications

The PS Audio A-100 is a compact, high-performance Class D amplifier that delivers quality sound and efficiency in a sleek design. Part of PS Audio's mission to make high-quality sound accessible, this amplifier features innovative technologies and an array of characteristics that make it a noteworthy choice for audiophiles.

One of the primary features of the A-100 is its Class D architecture, which is known for its energy efficiency and thermal management. This design allows the amplifier to produce high power while maintaining a small footprint, making it an excellent choice for both small and large setups. With an output power of 100 watts per channel into 8 ohms, the A-100 can drive a variety of speakers with ease, delivering dynamic and robust sound reproduction.

The A-100 incorporates PS Audio's proprietary technologies, including the unique input stage and a custom-designed output stage. These technologies contribute to producing exceptional clarity and detail across all frequencies. The amplifier also features a low-noise power supply that minimizes interference, ensuring a clean and transparent audio signal. This is particularly beneficial for critical listening environments, where every nuance of sound matters.

Another important characteristic of the A-100 is its versatility. It includes various input options, such as RCA and XLR connectors, allowing seamless integration into different audio systems. This ensures compatibility with a wide range of source components, whether it be CD players, digital audio players, or home theater receivers.

The A-100 is also designed with ease of use in mind. It comes equipped with a simple, intuitive user interface that allows for straightforward operation. Moreover, its compact size means it can be easily placed in virtually any setup, from a dedicated audio room to a casual living space.

In addition to performance, PS Audio places great emphasis on build quality. The A-100 features a sturdy chassis that minimizes vibrations and interference, further ensuring high fidelity sound reproduction. Its modern aesthetic, combined with high-end materials, makes it an attractive addition to any audio setup.

In summary, the PS Audio A-100 amplifier is an excellent choice for those seeking high-quality sound in a compact form factor. With its advanced Class D technology, versatile connectivity options, and robust build quality, it stands out as a highly efficient and reliable amplifier in the modern audio landscape. Whether for casual listening or critical audiophile applications, the A-100 consistently delivers outstanding performance, making it a valuable asset for any audio enthusiast.
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