SX724

About the SX724

The Crown SX724 is a professional rack-mount reel-to-reel tape recorder designed for high-fidelity audio recording and playback. Manufactured in the USA in 1970, it features solid state electronics and a quality build. It supports stereo recording with 1/4 inch tape and offers three tape speeds: 3 3/4, 7 1/2, and 15 inches per second. The maximum reel size is 7 inches. The unit includes three permalloy heads for recording, playback, and erase functions. It delivers a frequency response of 30 Hz to 25 kHz at 15 ips with a wow and flutter of less than 0.09% at 7 1/2 ips and 0.18% at 3 3/4 ips. The signal-to-noise ratio is 55 dB at 7 1/2 ips and 50 dB at 3 3/4 ips. The SX724 operates on 110-120V and is designed for professional use with features such as four feather touch pushbutton mode controls, reel size selection, master power, speed shift, and edit/cue lever. It has a stop time of approximately one inch at 7 1/2 ips and a high-speed rewind time of about 60 seconds for 2400' reels. The unit is 19" rack mountable and weighs around 8 pounds. It includes balanced and unbalanced inputs and outputs, headphone jack, and external balancing transformer options. The SX724 is noted for its simplified circuitry, electromagnetic brakes, and reliable mechanical operation, making it a sought-after vintage tape deck for audiophiles and professionals.