API (Automated Processes, Inc.)

https://www.facebook.com/pg/Vintageking/photos/?tab=album&album\_id=10155871174538538

http://www.redstarrecording.com/studio.html

 APSI/Aengus:

☀https://avedisaudio.com/api-apsi-aengus-aphex-modules/

http://apiaudio.com/about.php

Bridged T EQ: https://www.facebook.com/scott.liebers/posts/1756697504351970

 550:

☀http://www.technicalaudio.com/pdf/API\_Automated\_Processes/API\_550\_EQ/API\_550\_Equalizer\_Versions.pdf

http://www.technicalaudio.com/reading/apilistmostlyoldmodelnos.html

https://groupdiy.com/index.php?topic=14869.msg183358#msg183358

https://www.gearslutz.com/board/high-end/40437-sound-differences-btw-api-550a-amp-550b.html

https://www.gearslutz.com/board/showpost.php?p=10865462&postcount=11

https://www.gearslutz.com/board/showpost.php?p=403570&postcount=2

http://lunchboxhero.com/forums/showthread.php?121-Mythical-Creatures-Extinct-Beasties&s=509cef7b95f3f9288a9866a1f1466cac

https://vintageking.com/blog/2016/06/api-32-channel/

Vintage

API 3288 / 3232

API 2488

API 1604

API 1602

Modern

API Vision: Surround Sound - umlsrt.com/api\_vision\_tour\_home/

API Legacy AXS: Normal 500 Series Slots!

API Legacy Plus: 550L

API Legacy

API 1608 / 3208 / 4808

The Box

Modded Variations

## =======

Modules

https://avedisaudio.com/api-apsi-aengus-aphex-modules/

205L DI

212

212L Mic Pre / Millenia / JLM

212M: reverb.com/item/7585867-api-212m-vintage-microphone-preamps

212S: Sony MXP 3000 Console

215L HP/LP Sweep Filter

225L Compressor [2 different attack versions]

235L Noise Gate

245L DeEsser

255L Line Driver [Never produced?]

265L Single Channel Mixer [Never produced]

275L Stereo Master [Never produced]

312

325 Booster Card

505-DI

512

512B

512C

512V

525 [A/B/C/D/E]

527

528: Input Module

528C: Input Module

535-LA Line Amplifier

544

544P

544PM

548B: Input Module

550 Equalizer - 3 Bands 11 freqs. Proportional Q w Hi and Lo Pass Fltrs - two 2520's

**550A Equalizer** - 3 Bands 15 freqs. Proportional Q w Hi and Lo Pass Fltrs - two 2520's

 550A-1 Equalizer - 3 Bands 15 freqs. Constant Q w Hi and Lo Pass Fltrs - IC's and 2520

550B [5502/550D/550M/5500] 4 Bands 28 freqs. Proportional Q - two 2520's

550L Equalizer - 4 Bands 28 freqs. Proportional Q - two 2510's for API Legacy console

https://groupdiy.com/index.php?topic=14869.msg183358#msg183358

550S Equalizer - 4 Bands 28 freqs. Proportional Q - two 2510's for Sony MXP-3000 console

https://groupdiy.com/index.php?topic=14869.msg183358#msg183358

553 (Inductors) Program Equalizer - 3 Band - 3 Freqs. - 2520

554 Parametric Equalizer - 3 Band - Unstepped

565 Filter Bank

575 Oscillator

APSI 559 / Aengus

559 Graphic Equalizer - 9 Bands - Stepped Lever type Boost/Cut switches

560 Graphic Equalizer - 10 Bands - Proportional Q w 2520 and IC op amps as L's

560A Graphic Equalizer - 10 Bands - Proportional Q w IC op amps throughout

560AT Graphic Equalizer - 10 Bands - Proportional Q w IC op amps throughout - xfmr out

560B Graphic Equalizer - 10 Bands - w 2520 and IC op amps as L's - no transformer - special order

560BT Graphic Equalizer - 10 Bands - w 2520 and IC op amps as L's - Output xfmr - standard version

560L Legacy version of 560

562 two 560 EQ's in 1U Rack Mount

565 Filter Bank

565-AT Personality Equalizer

954

Transformers

2503 Output Transformer: VP25 [312] / FD312 [Heider] / VP312 [512] - Less Saturated Low End

2622: Input Transformer

2623 Output Transformer: VP26 [312] / VP28 [API 3232 Strip] - Original

## =========

medio/sunset sound

Modern Interpretations

Inward Connections 500 Series Console

Tonelux?

FIX