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Chuck Levin’s will be closed for Memorial Day on Monday May 27th
Chuck Levin’s will be closed for Memorial Day on Monday May 27th

API 525 Discrete Compressor, Re-Issue

Sold out
Original price $1,295.00
Original price $1,295.00 - Original price $1,295.00
Original price $1,295.00
Current price $1,230.25
$1,230.25 - $1,230.25
Current price $1,230.25
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█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions


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New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

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B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

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Get Everything You Need In A Compressor With The API 525 Discrete Compressor, Re-Issue

Originally released in the 70's, the API 525 is a feedback type compressor. An input (threshold) control and output (make-up gain) control are provided, along with an additional ceiling fine-tune function which can increase gain reduction (lower threshold) while simultaneously raising output level to match, so the user can alter dynamics on the fly without level changes. 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/pop reduction. The 525 design has been taken from the original blue prints and spec control drawings from the API archives.

Release times vary with frequency, with high frequency / full bandwidth content released faster than lower frequencies for natural envelope tracking. Attack time is fixed, chosen to catch the fastest peaks, without pumping. Equally useful as a tracking, mixdown or program compressor/limiter, the 525 utilizes vintage dynamics control and an easy to use multi-function control set. The 525 has a hard-wire bypass switch, a balanced input, and a pinout that is the same as all the other 500 series modules. Two or more 525s can be linked for multi-channel compression. T

he API 525 Compressor makes use of the 2510 and 2520 op-amps and exhibits the reliability, long life, and uniformity which are characteristic of all API products.

  • Exact reissue of API's original 525 from the early 70's
  • Peak detecting feedback compressor/limiter
  • Variable Threshold and Output levels
  • Unique ceiling control combines key functions
  • Analog VU meter for monitoring gain reduction
  • 4 Switchable release modes
  • De-Ess function
  • Traditional API fully discrete circuit design
  • Active Balanced Input/Output
  • Hardwire bypass

SPECIFICATIONS

  • Input Impedance: > 30 K Ohms, Balanced
  • Output Impedance: 100 Ohms, Transformer coupled, Balanced
  • Operating Levels: -15 dBu to +20 dBu
  • Maximum Gain Reduction: 25 dB
  • Noise: 98 dB below +10 dBu output, at 10 dB of Compression
  • Harmonic Distortion: 0.5% Max, 30 to 20 kHz
  • Attack Time: 15 micro seconds
  • Release Times: .1, .5, 2.0, 2.5 seconds
  • De-essing: Inversion of the Voice Energy Curve
  • Slopes: Compression, 2:1, Limit, 20:1
  • Metering: Compression or Limiting-Illuminated Analog dB meter, shows Gain Reduction
  • Frequency Response: ±.5 dB, 30 to 20 kHz
  • Power Requirements: ±12/18 Volts/DC, @80 ma.
  • Size: 1.5 X 5.25 X 7.5 inches
  • Size (Boxed for Shipping): 4.5 X 6.5 X 10 inches
  • Actual Weight: 1.77 lbs.
  • Shipping Weight: 2.17 lbs.

Manufacturer: Automated Processes Inc
Model: 525
SKU: I302012-N-0-WHXB


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