API
312
intermediate
$795
Used market: $650*
Specifications
3 of 7 values have a recorded source- Type
- outboard_preamp·
- Added Gain dB
- 69✓
- Input Connector
- 3-Pin XLR Mic (via 15-position edge connector)·
- Output Connector
- 500 Series Edge Connector, transformer balanced·
- Expert Description
- En: Reissue of the console module that predates the 512c: 2520 op-amp, API 2622 input and 2503 output transformers, gain +34 to +69 dB (+14 to +49 dB with the pad), switchable 48 V phantom, and no front-panel instrument input at all — everything arrives on the 15-position .156" edge connector. · Uk: Перевидання консольного модуля, старшого за 512c: операційний підсилювач 2520, вхідний трансформатор API 2622 і вихідний 2503, підсилення +34…+69 дБ (+14…+49 дБ з атенюатором), перемикане фантомне 48 В і жодного інструментального входу на панелі — усе приходить крайовим роз'ємом на 15 позицій із кроком .156".·
- Provides Phantom Power
- yes✓
- Requires Phantom Power
- no✓
Expert Audio Engineering Commentary
Gain Staging Advice
69 dB is a lot of gain for a module with no continuous trim of its own: the fine adjustment has to happen either at the microphone (pad) or at whatever the module feeds.
Production Warning
There is no instrument input and no output jack: the 312 is only usable inside a 500-series rack or an API console. Bought as a "preamp" without a rack it does nothing at all.
* Estimated with the depreciation fallback (~82% retained value). · checked on 8/5/2026