1.
What does FAST stand for?
Correct Answer
A. Flexible Amplifier Summing Technology
Explanation
FAST stands for Flexible Amplifier Summing Technology. This technology allows for flexible and customizable amplification and summing of audio signals. It provides the ability to adjust and manipulate the levels and routing of audio signals in a versatile and efficient manner.
2.
What does FAST do?
Correct Answer
A. Actively distributes amplifier power in any combination of channels
Explanation
FAST (Flexible Amplifier Summing Technology) is a system that actively distributes amplifier power in any combination of channels. This means that it allows the user to allocate power to different channels as needed, providing flexibility and efficiency in amplification. It is a technology that enables the amplifier to adapt to different audio setups and optimize power distribution accordingly. By actively distributing power, FAST ensures that each channel receives the appropriate amount of power, resulting in improved audio performance.
3.
What type of amplifier is the PLD/CXD?
Correct Answer
D. Class D
Explanation
The PLD/CXD is a Class D amplifier. Class D amplifiers use switching technology to efficiently amplify audio signals. They have high power efficiency, low heat dissipation, and small size, making them ideal for applications where power consumption and space are important factors. Class D amplifiers are commonly used in audio systems, such as car audio systems and professional sound reinforcement systems, where high power output is required.
4.
Which of the following sentences is true about the PLD/CXD power supply?
Correct Answer
A. The Powerlight power supply draws current efficiently using Power Factor Correction.
Explanation
The correct answer is "The Powerlight power supply draws current efficiently using Power Factor Correction." This sentence explains that the Powerlight power supply is able to draw current efficiently by utilizing Power Factor Correction. This technology helps in optimizing the power usage and reducing energy wastage.
5.
What two factors define the deliverable power to a single amplifier channel?
Correct Answer
A. Current and Voltage
Explanation
The deliverable power to a single amplifier channel is defined by the current and voltage. Current refers to the flow of electric charge in the circuit, while voltage is the potential difference that drives the current. These two factors determine the amount of power that can be delivered to the amplifier channel.
6.
What mode combines two channels to provide more power to higher impedance loudspeakers?
Correct Answer
A. Bridge
Explanation
Bridge mode combines two channels to provide more power to higher impedance loudspeakers. In this mode, the two channels are connected in parallel, with one channel's output inverted and then combined with the other channel's output. This results in an increased voltage and power output, allowing for better performance with speakers that have higher impedance.
7.
Which loudspeakers benefit most from a Bridge-Parallel mode?
Correct Answer
A. Loudspeakers with impedance in the 4 – 8 ohm region
Explanation
Loudspeakers with impedance in the 4 - 8 ohm region benefit most from a Bridge-Parallel mode because this mode allows for combining the power of two channels to drive a single loudspeaker. In this mode, the impedance of the loudspeaker is effectively halved, which means that loudspeakers with higher impedance (more than 8 ohms) may not be able to take full advantage of the increased power. On the other hand, loudspeakers with lower impedance (less than 4 ohms) may be at risk of overloading the amplifier. Therefore, loudspeakers with impedance in the 4 - 8 ohm region are the most suitable for this mode.
8.
What mode combines two channels to provide more power to lower impedance loudspeakers?
Correct Answer
B. Parallel
Explanation
Parallel mode combines two channels to provide more power to lower impedance loudspeakers. In this mode, the positive terminals of both channels are connected together, as well as the negative terminals. This results in the total impedance being halved, allowing for more power to be delivered to the speakers. By combining the power of two channels, parallel mode is able to drive lower impedance speakers more efficiently and effectively.
9.
Why is the PLD/CXD built “upside-down”?
Correct Answer
A. To keep small particles from ending up on the circuit boards
Explanation
The PLD/CXD is built "upside-down" to prevent small particles from ending up on the circuit boards. By placing the boards upside-down, any particles that may fall during the manufacturing process will fall away from the sensitive components, reducing the risk of short circuits or other damage. This design helps to ensure the reliability and performance of the amplifier by minimizing the chance of contamination from particles.
10.
What are the three primary components of each amplifier channel?
Correct Answer(s)
A. Storage capacitors
B. Filter
C. Custom MOSFET output device
Explanation
The three primary components of each amplifier channel are storage capacitors, filters, and custom MOSFET output devices. Storage capacitors store and release electrical energy, filters remove unwanted frequencies from the signal, and custom MOSFET output devices amplify and control the signal. These components work together to ensure efficient and high-quality amplification of the audio signal.
11.
The PLD/CXD amplifier can automatically assign specific signal processing to designated QSC loudspeakers to maximize their performance. What is the name of this feature?
Correct Answer
A. Intrinsic Correction
Explanation
Intrinsic Correction is the name of the feature in the PLD/CXD amplifier that automatically assigns specific signal processing to designated QSC loudspeakers to maximize their performance. This feature allows for precise and accurate sound reproduction by correcting any inherent imperfections in the loudspeakers' response, resulting in optimized performance and enhanced audio quality.
12.
What does the Preset Wizard do?
Correct Answer
A. Helps to select the best amplifier channel configuration based on user parameters
Explanation
The Preset Wizard helps users select the best amplifier channel configuration based on their parameters. This means that it assists in determining the optimal setup for the amplifier channels based on the specific needs and preferences of the user. It simplifies the process of configuring the amplifier by providing preset options that are tailored to the user's requirements.
13.
Which of the following are main pillars of the PLD/CXD amplifiers? Check all that apply.
Correct Answer(s)
A. Fast Flexible Power
B. Real Useful DSP
C. Advanced Amplifier Technology
D. Unmatched User Experience
Explanation
The main pillars of the PLD/CXD amplifiers are Fast Flexible Power, Real Useful DSP, Advanced Amplifier Technology, and Unmatched User Experience. These features contribute to the overall performance and functionality of the amplifiers, allowing for fast and flexible power delivery, advanced digital signal processing capabilities, cutting-edge amplifier technology, and an unparalleled user experience. The option "Clunky Outdated System" is not a main pillar of the amplifiers as it implies an inferior and outdated system, which contradicts the advanced features mentioned in the other options.
14.
Why do channels A and C share a heat sink?
Correct Answer
A. Since channel A is most commonly paired with channel B, this spreads out the thermal load when channel A and B are in use.
Explanation
Channels A and C share a heat sink because channel A is most commonly paired with channel B. This arrangement helps to distribute the thermal load evenly when both channel A and B are in use. By sharing a heat sink, the thermal load of both channels can be handled effectively, allowing the other heat sink to cool down. Additionally, channels B and D also share the same circular heat sink, further optimizing the cooling system.
15.
When you press the Gain button on the Front Panel and adjust a channel’s gain, the change is not active until you select the Enter button.
Correct Answer
B. False
Explanation
When you press the Gain button on the Front Panel and adjust a channel's gain, the change is immediately active and does not require selecting the Enter button.
16.
When you save a new Preset with the Preset Wizard, that preset is automatically loaded to the amplifier.
Correct Answer
B. False
Explanation
When you save a new Preset with the Preset Wizard, that preset is not automatically loaded to the amplifier.
17.
What is the default password on the Lockout feature?
Correct Answer
A. QSC
Explanation
The default password on the Lockout feature is "QSC".
18.
What are the primary functions of the Amplifier Navigator Software?
Correct Answer
A. To update amplifier firmware and to copy Preset libraries
Explanation
The primary functions of the Amplifier Navigator Software are to update amplifier firmware and to copy Preset libraries. This software allows users to easily update the firmware of their amplifiers, ensuring that they have the latest features and improvements. It also allows users to copy and manage preset libraries, making it easy to transfer settings between amplifiers or backup and restore presets as needed.