Realistic STA-78

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The STA-78 is a high-performance headphone amplifier designed to deliver crystal-clear audio with exceptional detail and dynamics. Featuring a custom-made, high-current, discrete, Class-A topology, this amp is capable of handling a wide range of headphone impedances with ease.The STA-78's input stage is based on a specially designed, low-noise, JFET circuit that provides an incredibly low noise floor, allowing for exceptional signal-to-noise ratio (SNR). The output stage employs a unique true balanced configuration that reduces any possible crossover distortion, resulting in incredibly clean and transparent sound.The amplifier's volume control section is carefully designed and implemented to provide smooth, easy-to-use, stepped attenuation, which minimizes any loss of performance or signal degradation that can occur with traditional potentiometers.The STA-78 includes a variety of additional features, including selectable gain, output filtering, and ground lift capabilities to address potential ground loop issues. It also incorporates a high-quality, low-noise, DC-coupled operational amplifier for the headphone output, ensuring a flat frequency response and unprecedented performance.Overall, the STA-78 is an outstanding choice for audiophiles seeking a realistic, high-performance headphone amplifier that delivers exceptional clarity, definition, and dynamics.

Tuning range: FM, MW
Power Output: 22W into 8Ω (stereo)
Frequency Response: 20Hz to 20kHz
Distortion: 0.5%
Speaker Impedance:
Input Sensitivity:
Signal to Noise Ratio: 65dB (mm), 75dB (line)
Line Output:
Dimensions: 12.5 x 6 x 17"
Weight:
Year: 1978
Price: USD $269.95 (1978)