The purpose of the transport, or as it is sometimes called, “tape deck,” is to mechanically position and move magnetic tape over the heads. CROWN Pro-700 transports accomplish this with optimum ease and simplicity, and axe designed for long trouble-free life. Materials and design are keyed to the highest professional requirements. A high-mass capstan drive system assures rock-steady tape motion. Rugged, oversize reel motors provide tape-handling capabilities seldom found at any price. Tape can be reeled from one end to the other; and it can immediately be brought to a soft and gentle stop. The patented braking system never needs adjusting —there is nothing to adjust, nothing to wear out. There are no brake shoes, or other friction devices—no mechanical linkages or gadgets in the braking system. Braking tension is determined entirely be electrical factors. This same design philosophy has been carried throughout the entire transport; a minimum of moving parts, a maximum of dependability. The belt-driven capstan is powered by a hysteresis-synchronous drive motor. The capstan rotates constantly so long as power is applied to the drive motor. The drive motor also serves to power the forced-air ventilating system of the machine by drawing cold air in over the drive motor and expelling it out the ends of the enclosed machine. The two reel motors (torque motors) perform the duties of take-up and pay-off tension, fast forward and rewind, and braking. In the play mode, the take-up tension is controlled by the AC voltage applied to the take-up motor, while pay-off tension is controlled by an AC voltage applied to the pay-off motor. In fast forward or rewind, the pulling motor is powered with a full 117 VAC while the opposite motor has 10 VDC applied for a slight holdback tension. A large variety of record-reproduce electronics and heads are available.