Various cartridge manufacturers have been inspired by the Shibata shape and now produce cartridges with stylus shapes that give the same advantages as the Shibata. quadraphonic systems never really caught on with consumers, but they have helped to speed up the development of stylus types that improve playback of stereo records in the form of a more precise treble reproduction, lower distortion, and less record wear.

Advanced Stylus Profiles as used on Hiend Cartridges offer much improved Sound Quality & Tracking almost exactly duplicates the shape of the cutting stylus used to produce the original master disc from which records are made. This enables it to track portions of the groove other styli simply cannot reach. The result is extremely accurate tracking of high-frequency passages and ruler-flat frequency response within the audible range.

P-mount cartridges (T4P) are designed to be interchangeable. A "T4P" insignia is usually present on the turntable to indicate a P-mount tonearm. So, for all practical purposes any brand below will fit and work in a T4P tonearm

Specifically designed to be user-friendly, the P-MOUNT or T4P cartridge makes changing and setting-up a phono cartridge very simple, easy and fast. It takes only two steps: plug and screw. That's it.

Now why is P-MOUNT desirable? Most users simply want to play and listen to records. To them a turntable is simply a means to an end. The half-inch mount turntable requires several steps to install the cartridge and several other steps to balance and align the cartridge. Balancing and aligning a cartridge are required for optimal tracking, groove retrieval and sound quality. The P-MOUNT design simplifies cartridge installation and eliminates the need for cartridge alignment.