Ampex AL 500

The Ampex AL-500 reel-to-reel tape deck is a professional-grade, solid-state recorder designed primarily for communication logging and long-term operation applications. It was introduced in the 1960s and is known for its reliability, flexibility, and precision.

Technical Overview of the Ampex AL-500

• Track and Channel Configuration: Four-track, four-channel recorder/reproducer, allowing simultaneous recording and playback on multiple channels, suitable for complex audio and communications tasks.​

• Tape Speeds: Supports specialized speed pairs such as 15/16 ips and 1 7/8 ips, 3 3/4/7 1/2 ips, or 7 1/2/15 ips (standard professional speeds) to suit various operational needs, including very precise audio timing and logging.​

• Electronics: Fully solid-state electronics housed in compact modules, featuring high-quality Ampex heads with ferrite cores designed for reliable, high-performance recording and reproducing.​

• Mechanical Design: Precision-milled, die-cast top plate for rigid, stable tape transport with relay and solenoid mechanism allowing remote control and smooth operation. The transport is designed for low wow and flutter and stable tape speed.​

• Signal-to-Noise Ratio: Around 55 dB (unweighted) at standard speeds, ensuring high fidelity and low noise recordings. Flutter and wow are also minimal, preserving sound quality over long recordings.​

• Additional Features:
  Remote control capability for full tape transport functions.
  Manual tape lifter to protect heads and allow precise tape threading.
  Illuminated VU meters switchable for input or output monitoring.
  Head covers that open fully for easy access and maintenance.​

• Physical Form: Available in portable Samsonite cases or rack-mount configurations. Portable units weigh between 42 to 52 lbs, designed for flexibility in field or studio use.​

• Applications: Widely used in broadcast, educational, commercial/industrial, government, and remote monitoring applications requiring long-term, high-quality logging and communications recording.​

Summary

The Ampex AL-500 is a robust, professional four-track, four-channel reel-to-reel tape recorder with solid-state electronics and precision mechanical design, built for demanding communication logging and monitoring tasks. Its reliable tape transport, versatile speed options, and high signal fidelity made it a trusted choice for complex and long-duration audio recording environments.