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Amplifier×日本オーディオ - List of Manufacturers, Suppliers, Companies and Products

Amplifier Product List

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Logarithmic/Anti-logarithmic Amplifier "LGA-1"

Logarithmic/Anti-logarithmic Amplifier "LGA-1"

An amplifier module developed for measuring instruments that require high precision and high stability.

The logarithmic/inverse logarithmic amplifier "LGA-1" is a voltage input type log-antilog amplifier module developed specifically for measuring instruments that require high precision and high stability. It is compact, lightweight, and low-cost, making it suitable for a wide range of applications. The input and output sides have separate grounds, which prevents the generation of error voltage due to ground currents. For more details, please download the catalog.

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Compact audio amplifier "LDA-2 S/D"

Compact audio amplifier "LDA-2 S/D"

This is a two-pole ultra-low distortion amplifier module developed for measurement purposes.

The small audio amplifier "LDA-2 S/D" is an ultra-low distortion amplifier unit using 2-pole amplifier technology. It has been condensed to 1/3.5 of the volume of the conventional LDA-1 using the latest know-how. This device was developed specifically for audio applications, but it also has sufficient performance to be used in distortion measurement-related equipment. For more details, please download the catalog.

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Voltage Controlled Variable Gain Amplifier "VCA-1"

Voltage Controlled Variable Gain Amplifier "VCA-1"

It is a low-distortion, low-noise amplifier that can precisely control the gain with a control voltage.

The voltage-controlled variable gain amplifier "VCA-1" is a 2-channel voltage-controlled amplifier using a transconductance variable method. It is a compact and user-friendly module that houses two channels in one case. The two VCAs can be used in series, allowing for a significant attenuation of 80dB to 100dB even at frequencies of several hundred kHz, which is difficult to achieve with a standard volume control. For more details, please download the catalog.

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Voltage-Controlled Variable Gain Amplifier "NA101A"

Voltage-Controlled Variable Gain Amplifier "NA101A"

It is a low-distortion, low-noise amplifier that can precisely control the gain with a control voltage.

The voltage-controlled variable gain amplifier "NA101A" is a voltage-controlled amplifier module with a wide variable range and high logarithmic linearity. It is a module dedicated to AC signals, and using an inverting amplifier for gain adjustment allows for independent adjustment of gain scale and gain reference, making it convenient. For more details, please download the catalog.

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Measurement Amplifier "LDA-1"

Measurement Amplifier "LDA-1"

This is a two-pole ultra-low distortion amplifier module developed for measurement purposes.

The measurement amplifier "LDA-1" is an ultra-low distortion amplifier using 2-pole amplifier technology, while the LDB-2 is an ultra-low distortion buffer with internal buffered connections. It is the ideal amplifier for applications requiring ultra-low distortion rates, and considerations for sound quality have been thoroughly addressed to also allow for use in audio applications. For more details, please download the catalog.

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Logarithmic/Anti-logarithmic Amplifier "LGA-3AL/L"

Logarithmic/Anti-logarithmic Amplifier "LGA-3AL/L"

This is a logarithmic compression and expansion module for a voltage range of 10,000 times.

The logarithmic/inverse logarithmic amplifier "LGA-3AL/L" is a more compact and lower-cost version of the highly stable log amplifiers LGA-1 and LGA-2. While the trimming accuracy has been slightly relaxed, the basic components and other parts are mostly the same as those used in LGA-2. For more details, please download the catalog.

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