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musical instrument details

API A2D dual mic preamp and A/D converter

Estimated price for orientation: 1 595 $

Category: Audio or MIDI Interfaces
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Description
Condition: Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. See all condition definitions- opens in a new window or tab ... Read moreabout the condition Model: API A2D dual mic preamp and A/D converter
Form Factor: Rack Mountable Max. Sampling Rate: 24 Bit (192kHz)
Brand: Api-Audio Features: Phantom Power


Excellent condition - hardly used, like new
API A2D Mic Pre/Converter
The API 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!Features: A pair of signature API 312 Mic Preamplifiers API 2510 and 2520 Operational Amplifiers 20 Segment LED metering on both analog and digital sections Mic and Instrument inputs Polarity, phantom power, input pad, 2:1 transformer routing, Mic/Line switches Six sample rate choices Sync to external Word Clock with feed through BNC Ability to be slaved with other A2D units Insert point provided between analog and digital sectionsSPDIF
The first API product with an integrated digital output, the A2D contains a pair of API 312 Mic Preamplifiers that feed 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 and the level feeding the digital section means that the microphone signal may be kept super-clean if desired or driven harder to achieve the warm, punchy "API sound." The A2D Analog section consists of the circuitry contained in two 312s, half of that of the popular API 3124+. A level control pot with an expanded 20-segment metering system shows precise mic gain levels, while control switches include polarity, 48v phantom power, input pad, Mic/Line select and 2:1 transformer routing, which selects a lower gain contribution from output transformer. Each analog input contains a balanced low-Z input XLR connector and a high-Z instrument input on a 1/4" jack. The digital section of the A2D includes two API discrete 2510 amplifiers with level pots to adjust the feed to the A/D converters, each with a corresponding 20-segment calibrated meter. A multi-position switch selects the desired sample frequency. The External Sync LED will light when an external clock signal is used. Rear panel analog connectors include an XLR input and output for each channel, as well as a balanced 1/4" TRS insert to the A/D converter. The TRS insert allows the A2D to have external analog processing devices inserted in the audio chain (EQs, compressors, etc.) The A2D's digital interface connectors are a SPDIF single-ended RCA connector and an AES digital out on XLR. A coaxial BNC accepts external Super Clock, which will illuminate the front panel EXT SYNC LED when locked. Additionally, the A2D comes with a pair of 9-pin D-sub connectors that allow the multiple units to be linked together with all units operating off the first sample-rate clock in the chain.