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The impedance rating of an amplifier depends on the specific model and type of amplifier. It is typically listed in the specifications of the amplifier and can range from 2 ohms to 16 ohms or higher.

The frequency response of an amplifier depends on its design and specifications, such as the type of amplifier circuit, the gain, the bandwidth, and the input and output impedance. Generally, the frequency response of an amplifier refers to how the amplifier amplifies or attenuates signals at different frequencies within its operating range. It can be represented by a graph that shows the gain or attenuation of the amplifier as a function of frequency.

Please refer to the manufacturer's website or user manual for this information.

The signal-to-noise ratio of an amplifier depends on the strength of the signal and the level of noise present in the system. It is typically expressed in decibels (dB) and is calculated by dividing the signal power by the noise power.

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The frequency response of an amplifier refers to how it responds to different frequencies of input signals. It is typically measured in decibels (dB) and plotted on a graph called a frequency response curve. The frequency response can vary depending on the type of amplifier and its design. Generally, amplifiers are designed to have a flat frequency response, meaning they amplify all frequencies equally. However, some amplifiers may have a specific frequency response curve to suit particular applications, such as boosting bass frequencies for a subwoofer.

The THD rating of an amplifier depends on the specific model and manufacturer. THD is a measure of the distortion in the output signal of an amplifier, and a lower THD rating indicates less distortion. It is important to consider the THD rating when selecting an amplifier for audio applications.

Amplifiers can have various inputs and outputs depending on their type and purpose. Some common inputs include RCA, XLR, and TRS, while common outputs include speaker terminals, headphone jacks, and line-level outputs. The specific inputs and outputs of an amplifier would depend on the make and model.