The Technics SA-EX100 Class H+ Amplifier from 1996 is a high-quality audio amplifier designed for home audio systems. It is a highly regarded piece of audio equipment, known for its exceptional sound quality and reliable performance. Below is a detailed description and specification of the Technics SA-EX100 amplifier.

Description:

The Technics SA-EX100 Class H+ Amplifier is a stereo amplifier that uses advanced Class H+ circuitry to deliver high-quality audio performance. It has a sleek, modern design, with a black aluminum faceplate and black plastic knobs and buttons. The front panel features a large volume knob, with tone control knobs for bass and treble. There is also a balance control knob, as well as a headphone jack for private listening.

The back panel of the amplifier has a variety of input and output options, including RCA input jacks, a phono input for turntable use, and a variety of speaker output options. The amplifier also has a built-in preamp for turntable use, making it easy to connect a turntable directly to the amplifier without the need for an external preamp.

Specification:

Power output: 100 watts per channel into 8 ohms (20Hz - 20kHz, 0.05% THD)
Class H+ circuitry for improved efficiency and reduced heat
Frequency response: 10Hz - 40kHz (+0/-1dB)
Signal-to-noise ratio: 90dB (A-weighted)
Total harmonic distortion: 0.05% (1kHz, 8 ohms, rated power)
Input sensitivity/impedance: Phono (MM): 2.5mV / 47kohms, Line: 150mV / 47kohms
Speaker impedance: 4-16 ohms
Dimensions: 430mm (W) x 141mm (H) x 300mm (D)
Weight: 6.9kg
The Technics SA-EX100 amplifier has a power output of 100 watts per channel into 8 ohms, with a frequency response of 10Hz - 40kHz (+0/-1dB). It features advanced Class H+ circuitry, which provides improved efficiency and reduced heat. The amplifier has a signal-to-noise ratio of 90dB (A-weighted), and a total harmonic distortion of 0.05% (1kHz, 8 ohms, rated power).

The amplifier has a variety of input and output options, including RCA input jacks, a phono input for turntable use, and a variety of speaker output options. The amplifier also has a built-in preamp for turntable use, making it easy to connect a turntable directly to the amplifier without the need for an external preamp.

The Technics SA-EX100 amplifier has a sleek, modern design, with a black aluminium faceplate and black plastic knobs and buttons. It has a headphone jack for private listening, and a large volume knob, with tone control knobs for bass and treble. The amplifier also has a balance control knob.

In terms of size and weight, the Technics SA-EX100 amplifier measures 430mm (W) x 141mm (H) x 300mm (D) and weighs 6.9kg. It is a high-quality audio amplifier that provides exceptional sound quality and reliable performance, making it a popular choice for home audio systems.

Information about Class H+ Amplification:

Class H+ is a type of amplifier circuit design that is an improvement over the traditional Class H design. Class H+ amplifiers are more efficient and generate less heat than traditional Class H amplifiers, while still maintaining high sound quality.

The main difference between Class H and Class H+ amplifiers is the way they handle power supply voltage. In Class H amplifiers, the power supply voltage is fixed, which can result in wasted energy when the amplifier is not being used at full power. In Class H+ amplifiers, the power supply voltage is variable, which allows the amplifier to adapt to the input signal and use only the power it needs to deliver the desired output.

The technical information involved in making Class H+ amplifiers includes the use of a power supply that can vary its output voltage in response to changes in the input signal. This requires the use of sophisticated control circuits and voltage regulators to ensure that the amplifier operates efficiently and accurately.

Class H+ amplifiers typically use switching power supplies, which are more efficient than linear power supplies. They also use high-quality components, such as low-noise transistors, high-quality capacitors, and precision resistors, to ensure that the amplifier delivers the highest possible sound quality.

Another important aspect of Class H+ amplifiers is their ability to deliver high power output with low distortion. This requires careful attention to the design of the amplifier's output stage, as well as the use of high-quality output transistors and heat sinks to dissipate the heat generated by the amplifier.

Overall, Class H+ amplifiers are important because they offer a combination of high efficiency, low heat generation, and high sound quality. They are ideal for use in home audio systems, as well as professional sound systems where reliable and high-quality performance is critical.