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API 550A Discrete 3 Band EQ

API 550A Discrete 3 Band EQ

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API 550A Discrete 3 Band EQ

The API 550A is a three-band switchable EQ module for 500-Series format.

Since the late '60s, the API 550A has been a staple of the American recording industry - included in both API and custom-made consoles. The original 550A modules have become so sought-after that they were the logical inclusion for the open-access 500-Series format that API invented.

A simple switchable three-band EQ, the API 550A has selectable shelving on the high and low bands with an independent band-pass filter. Proportional Q on the 550A allows smooth transition between the three frequency bands, gradually narrowing as more EQ is applied, up to 12dB.

The sound is unmistakably API - full of character and presence, with plenty of headroom and all the tonal sweetness that you need, to bring out the best in your instruments. Putting the API 550A into a Lunchbox, 500 Series gives you the power to use that fabled quality on the move.

API 550A Overview:

  • 3 bands of classic API equalization

  • Each band offers 7 API selected frequency centres

  • Reciprocal and repeatable filtering

  • Maximum 12 dB of boost/cut per band

  • EQ Band 1 and 3 offer shelf/peak switching

  • "Proportional Q" narrows filter Q at extremes

  • Traditional API fully discrete circuit design

  • High headroom +30 dB clip level

Short Description 3-band switchable EQ module for 500 Series format complete with switchable 12dB per octave 50Hz to 15KHz band pass filter and 2 x 2520 op amps on the output +4 balanced XLR I/O.
Demo in Store Yes
Manufacturer API
Old Price N/A
Valve / Solid State No
Q Type No
High Pass Filter No
Low Pass Filter No
High Frequency Range No
High Mid Frequency Range No
Mid Frequency Range No
Low Mid Frequency Range No
Low Frequency Range No
Bypass No
Channel Count No
Digital I/O No
Chassis No

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