CA-945

The CA-945 is a low-noise, Class A amplifier commonly used in Professional Audio equipment. It is typically used in recording and mixing consoles, audio-visual equipment, and public address systems. The amplifier is designed with Class A technologies, transistors and vacuum tubes contributing to extremely high signal-to-noise ratios. The CA-945 offers excellent headroom and high current capability for driving low-impedance loads. It provides increased power and 3 dB of additional gain over standard amplifier topologies.

The CA-945 uses a three stage amplifier, with each stage offering balanced input and output. On the input stage, three gain stages are used in parallel. The first stage provides an additional 12dB of gain. The second stage is designed with a differential amplifier that reduces the noise and increase the signal-to-noise ratio. The third and last stage is the output stage, which is comprised of two pairs of CCS transistors which are connected in opposition to limit the voltage across the circuit. This ensures the output signal is symmetrical and thus reduces harmonic distortion. This topology prevents crosstalk or hum from entering the output stage.

The CA-945\'s main benefits are its excellent signal-to-noise ratio and robust operation. Its low noise characteristics provide excellent headroom and signal-to-noise ratio, making it an excellent choice for professional sound applications. Its high current capability allows it to easily drive low-impedance loads and its power output is greater than other commercial amplifiers. Its sophisticated design also ensures that it is capable of operating at a wide temperature range, making it ideal for use in harsh environments.

The CA-945 is an excellent choice for audio-visual applications, public address systems, recording and mixing consoles, and other professional sound applications. It offers low-noise and robust performance, high current capability, wide temperature range, and high signal-to-noise ratio. Its high power output and three dB of additional gain over standard amplifier topologies make it an ideal choice for any application requiring high fidelity, low-noise operation.