The A2D represents a landmark achievement for API; it is the first product ever produced by the company with an integrated digital output. Recognizing the desire for a high quality solution to raise microphone signals to a workable line level, we engineered one of our most popular mic preamp designs into an enclosure with our new proprietary analog to digital conversion. The result is a complete package - a pair of superb mic preamps feeding an A/D section with a set of standard digital interface outputs, multiple sample-rate choices, and internal or external clock options. Precise control of both the analog gain as well as the level feeding the digital section means that the mic signal can be maintained super-clean if desired, or driven harder on the analog side for that whallop and impact that can only be achieved by driving the transformer into saturation for that historic API sound!

The A2D analog section consists of the circuitry contained in two API 312 mic preamps, or one half of the popular 3124 quad mic preamp rack product. A level control pot with an expanded 20-segment metering system shows precise mic gain levels. Control switches include polarity, 48v phantom power, input pad, 2:1 transformer routing, and Mic/Line select. Each analog input contains a balanced low-level XLR connector and a high-level line input on a 1/4 inch jack.

The API 2500 is a versatile stereo bus compressor that allows adjustment of sonic qualities that can alter the punch and tone of the stereo mix. The 19" rack mountable unit features ATI's patented "thrust" circuit for a chest-hitting, punchy bottom end. With its dual channel design, the API 2500 is set up for stereo compression, but can also be used as two separate units via a single compression setting. The 2500 boasts a range of parameters that make it incredibly musical

The 3124+ is designed with the professional engineer in mind, giving the highest possible quality 4 channel mic preamp, while keeping the size and price at a reasonable level. Equally at home in the control room, the studio, and news or recording truck, at the house console, on the stage, direct-to-DAT, or at the artist's disposal for the source of his music.

Both the 3124+ and the 3124MB+ are designed with the professional engineer in mind, giving the highest possible quality 4 channel mic preamp and with the 3124MB+, an audio mixer with a transformer balanced output.that keeps the size and price at a reasonable level. Both models are equally at home in the control room, the studio, and news or recording truck, at the house console, on the stage, or at the artist's disposal for the source of his music.

The lineage of the 5500 circuit can be traced back to the original 550 equalizer designed by Saul Walker, the founder of Automated Processes Inc. The 550 was designed as a console equalizer which, due to the architecture of the recording console, uses an unbalanced input. Because the ergonomics of a console dictate that the controls take up little space, sometimes the number of included functions can be limited. The 5500 is specifically designed to address these limitations. It has a balanced input, a true straight-wire bypass, an integrated power supply with noiseless muting, and a range control that expands it versatility to mastering applications.

The API 7600 Input Module offers studios of all sizes a whole new range of options without sacrificing quality. The 7600 strip forms the basis of a build-as-you-need-it, high quality recording console. It is the perfect choice for project studios who want high performance console sound, but have limited channel needs or budget constraints, and professional studios that want to add more channels to their existing desk through the addition of a side car.

API 7800 Rack Mounted Master Control Module is the final stage in the line of 7600 Input Modules linked together in a console configuration. The new API 7800 fits into one rack space unit. It includes summing amps for the echo sends, busses and stereo mix bus when linked up with the 7600 input module. The 7800 is available in either a Vertical or Horizontal configuration, depending on the custom needs of the user.

The new API 7800 fits into one 19" rack space unit. It includes summing amps for the four Echo Sends, four Track Busses and Stereo Mix Bus when linked up with the 7600 Input Module.

The 8MX2 rack mount preamp/mixer is perfect for remote recording, live broadcast feeds, studio "sidecar" inputs, and all critical digital recording formats.

Few equalizers enjoy the respect and admiration of the coveted API 550A. Designed by the now legendary Saul Walker in the late 60's, the discrete 550A was first used as a modular OEM equalizer. As the industry rapidly embraced the sonic quality of the 550A, it quickly found it's way into many custom console designs by Frank DeMedio and other leading engineers. Many of these consoles are still in use today.

Originally released in the 70's, the API 525 is a "feedback" type compressor, such as the 1176 and 660, etc. An input (threshold) control and output (make-up gain) control are provided. An additional "Ceiling" fine tune function modifies threshold and make-up gain for precise changes in compression without changes in output. A compression/limit switch sets ratio at either 2:1 or 20:1. Attack time is as fast as 15u/s. Four auto release modes are offered via two switches, 0.1s, 0.5s, 1.5s, & 2.0s. A De-Ess function inserts an inverse vocal energy curve filter in the detector for effective sibilance/p-pop reduction. The 525 is an identical re-issue of one of the most popular API products ever.