Studio Channel

API 550b 4-band EQ rack, in 500 Series format. You will be surprised by the possibilities offered by this equalizer. One of the most convincing features of the 550B is its ability to change or invert tones.

ARTICLE N° 57384
  • API 550b Modular 4-band equalizer, 500 format.
  • Filter type: The "Low" and "High" bands are Peak / Shelf switchable.
  • Low filter frequencies: 30, 40, 50,100, 200, 300, 400Hz.
  • Low-Mid Filter Frequencies: 75, 150, 180, 240, 500, 700, 1Khz.
  • Mid-High Filter Frequencies: 800.1.5K, 3K, 5K, 8K, 10K, 12.5K.
  • High Filter Frequencies: 2.5K, 5K, 7K, 10K, 12.5K, 15K, 20K.
  • Boost / Cu filter: +/- 12dB.
  • Slope of the filter: 12dB per octave.
  • Input impedance: 18.5 K +4 in, 7.5 K -2 in.
  • Output impedance: less than 75 Ohms.
  • Nominal levels: -15 to +15 dBu.
  • Clipping level: +30 dBu to +/- 16 V.
  • Frequency response: +0, -. 3.30 at 20 kHz.
  • Noise: Real, non-noisy noise, <-98 dBu, 20-20 kHz.
  • Distortion: 0.07% max, at +18 dBu Output.
  • Connectors: 15 positions.
Pre-amp
 No
Compressor
 No
Limiter
 No