Hitachi SR-503 (503)

Brand: Hitachi

The Hitachi SR-503 (or 503) is an analog videotape standard released in the mid-1970s. It was a high-resolution format designed for use in television studios and professional applications, offering improved image quality compared to earlier formats like Betamax and VHS. Some of its notable features include a longer playing time of up to 5 hours, a significantly higher resolution of 800 lines (compared to the standard 525 lines for NTSC), and a CMOS color encoding system that utilizes a "Color Under" process for more accurate and natural colors. However, due to the technological limitations of the time and the eventual popularity of digital formats like DVD and Blu-ray, the SR-503 failed to gain widespread commercial adoption, and production for this format was discontinued in the early 1980s.

• Tuning range: FM, MW
• Power Output: 20W into 8Ω (stereo)
• Frequency Response: 20Hz to 20kHz
• Distortion: 0.3%
• Damping Factor: 25
• Speaker Impedance:
• Input Sensitivity: 2.5mV (mm), 200mV (line), 450mV (din)
• Signal to Noise Ratio: 70dB (mm), 90dB (line), 90dB (din)
• Line Output: 300mV (line), 40mV (din)
• Dimensions: 435 x 134 x 359 mm
• Weight: 7.6 kg
• Year: 1977
• Price: