API Audio

USA, est. 1968 · 21 products across 3 categories

21
Total Products
3
Categories
$1,702
Avg Price
$24
From

About API Audio

API Audio, originally Automated Processes, Inc., has long been a cornerstone of professional audio recording, renowned for its robust, sonically distinctive equipment. Their designs, initially focused on broadcast consoles, evolved into highly sought-after studio processors and preamps, prized for their character and reliability. API’s gear is synonymous with a warm, punchy, and authoritative sound that has graced countless hit records.

Founded
1968
Country
USA
Segment
Premium
Target
API Audio is best suited for professional recording studios, mixing engineers, a
Known For
1604 Console Legacy 312 Preamp 2500 Stereo Compressor 550A EQ Signature 'API Sound'
PROS
  • • Exceptional build quality and reliability
  • • Distinctive, warm and powerful sonic signature
  • • Highly versatile across various genres
  • • Industry-standard for a reason
  • • Offers a unique character for tracking and mixing
CONS
  • • Premium-priced, investment required
  • • Can be perceived as 'colored' by some engineers
  • • Larger format rack units
  • • Limited range compared to some competitors
  • • Steeper learning curve for optimal usage

API Audio Products

API Audio ASM164 - Summing Mixer

API Audio ASM164

Summing Mixer

$4,289
Analogue Summing Mixer, 16 channels, API 2510 Input operational amplifier, API 2520 OpAmps, Insert...
4.8 Expert Rating
API Audio TranZformer GTR - Equalizer Pedals

API Audio TranZformer GTR

Equalizer Pedals

$395
Effect Pedal for Electric Guitar, 3-Band EQ, 3 Fixed frequencies: 200 Hz / 1.5 kHz / 5 kHz...
4.6 Expert Rating
API Audio TranZformer CMP - Compressor Pedals

API Audio TranZformer CMP

Compressor Pedals

$395
Effect Pedal for Electric Guitar, VCA compressor guitar pedal, API output transformer,...
5 Expert Rating
API Audio Select SV14 4-Band EQ - 500 Series Components

API Audio Select SV14 4-Band EQ

500 Series Components

$824
4-Band Equaliser in 500 Rack Format, Based on the classic APSI 562 EQ, Continuous...
4.6 Expert Rating
API Audio TranZformer LLX Bass Pedal - Equalizer Pedals

API Audio TranZformer LLX Bass Pedal

Equalizer Pedals

$395
Effect Pedal for Electric Bass, API 2510 OpAmp, API output transformer, 3-Band EQ...
4.9 Expert Rating
API Audio 3122V - Preamps

API Audio 3122V

Preamps

$2,969
2-Channel Microphone And Instrument Preamp, Classic API circuit design, API 2520 output amplifier,...
5 Expert Rating
API Audio 312 Mic Pre - 500 Series Components

API Audio 312 Mic Pre

500 Series Components

$1,099
Microphone Preamplifier for the 500 Series, Max. 69 dB gain, Totally discrete circuit design...
4.8 Expert Rating
API Audio 2500+ - Compressors, Gates and De-essers

API Audio 2500+

Compressors, Gates and De-essers

$4,179
Legacy Stereo Bus Compressor with blend function, API 2520 op-amp, Adjustable threshold -20db to +...
4.8 Expert Rating
API Audio 3124V - Preamps

API Audio 3124V

Preamps

$4,179
4-Channel Microphone, Instrument and Line Preamplifier, Classic API circuit design, API 2520 OP...
5 Expert Rating
API Audio 512v Preamp - 500 Series Components

API Audio 512v Preamp

500 Series Components

$1,429
Microphone / Instrument / Line Preamp, Microphone preamp with 65 dB gain, Line and instrument...
4.6 Expert Rating
API Audio 500-8P Lunchbox - 500 Series Components

API Audio 500-8P Lunchbox

500 Series Components

$879
Housing for 500 Series Modules, Accepts up to max. 8 x 500 standard modules, 250 mA per...
4.9 Expert Rating
API Audio 565 Filter Bank - 500 Series Components

API Audio 565 Filter Bank

500 Series Components

$879
Filter Bank, Low-pass filter: 500 to 20,000 Hz (-6 or -12 dB slope), High-pass filter: 20 to...
5 Expert Rating
API Audio 527A Compressor Limiter - 500 Series Components

API Audio 527A Compressor Limiter

500 Series Components

$1,462
API Audio 527 Compressor Limiter, Compressor / Limiter in the 500 rack format, Uses the discrete operational amplifiers...
4.7 Expert Rating
API Audio Blank Panel 500er 5B1 - 500 Series Components

API Audio Blank Panel 500er 5B1

500 Series Components

$24
Blank panel, For 500 10slot, 6slot API Lunchbox and 1608
4.6 Expert Rating
API Audio 500VPR - 500 Series Components

API Audio 500VPR

500 Series Components

$1,484
10-Slot Rack, 10 Module slots for standard module 500 from different vendors, Inputs and outputs via...
4.6 Expert Rating
API Audio 525 Discrete Compressor - 500 Series Components

API Audio 525 Discrete Compressor

500 Series Components

$1,627
Discrete compressor, Exact reissue of the original API 525 compressor from the 70s,...
4.7 Expert Rating
API Audio 550b Discrete 4 Band EQ - 500 Series Components

API Audio 550b Discrete 4 Band EQ

500 Series Components

$1,572
Discrete 4-band equalizer, From the 500 series, 7 centre frequencies selectable per...
4.5 Expert Rating
API Audio 550A Discrete 3 Band EQ - 500 Series Components

API Audio 550A Discrete 3 Band EQ

500 Series Components

$1,594
Equalizer, Discrete 3 band EQ from the 500 Series, 7 centre frequencies selectable...
4.8 Expert Rating
API Audio 512c Mic Pre - 500 Series Components

API Audio 512c Mic Pre

500 Series Components

$1,231
Mic Preamp, The 500 series, 65 dB gain, Microphone input on the front and back, Line /...
4.4 Expert Rating
API Audio 505 Di Direct Input - 500 Series Components

API Audio 505 Di Direct Input

500 Series Components

$879
Instrument Preamp for Guitar / Bass / Keyboard, Front-side Hi-Z input 6.3 mm jack, Thru...
4.7 Expert Rating
API Audio 5500 Dual Equalizer - Parametric Equalizers

API Audio 5500 Dual Equalizer

Parametric Equalizers

$3,959
Equaliser, Classic 550B Design, Switchable level range for finer resolution of complex...
5 Expert Rating

Frequently Asked Questions About API Audio

API Audio products are primarily manufactured in their Wixom, Michigan facility, maintaining a commitment to American craftsmanship and quality control.

Absolutely; API preamps are widely used for vocal recording, providing a rich, full sound with excellent transient response and a pleasing warmth.

The 2500 offers a unique blend of VCA and optical compression, delivering a signature 'glue' effect and a powerful, controlled dynamic range that sets it apart from more transparent or aggressive alternatives.

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