The Crane Song IBIS Stereo Mastering Equalizer can do something very different from other equalizers. First, each band has 24 frequencies. 12 switch positions and a "+ one step button" this button moves the frequencies up one whole musical step. The high and low bands also can be shelving by pushing the shelving button. The frequency chart shows how each of the bands over lap and how frequencies and musical notes relate. As an example, with the +1 step button pushed in, the frequency moves up two positions on the chart. 32.7 Hz which is the lowest frequency will become 36.7 Hz.
There is a dead zone of about plus and minus .3 db on the "boost / cut" controls where the EQ is flat in response. This allows an easy way to set your bands flat. The range of Standard Version is plus or minus 12 db and is not stepped. The Mastering Version (Crane Song IBIS Stereo Mastering Equalizer) has a range of 6 db in .5 db steps with a 1 db step between 5 and 6.
Specifications:
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Input:
- Type: Floating, Balanced
- Maximum Input Level: +25 dBm
- Input Connectors: XLR
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Output:
- Type: Floating, Balanced
- Maximum Output Level: +25 dBm
- Output Connectors: XLR
- Input & Output Connections: Pin 2 is Sig + , Pin 3 is Sig- , Pin 1 is GND
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Power Requirements:
- Volts: 100, 120, 230,240 volt; 50/60 Hz; 55 Watts
- Fuse Types: MDL .6A Fuse for 100V & 120V, MDL .3A Fuse for 230V & 240V
- Noise Measurement: EQ Set Flat & Bandwidth Controls at Max -85dBm
- Clipping: +25 dBm
- Distortion: EQ Set Flat at +20 dBm; 0.001%
- Pilot Lamp: # 327
- Shipping Weight: 19 lbs. (8.6 kg)
- Depth Behind Panel: 12.5 Inches (31.75 cm) Plus Cabling
- Panel Height: 2 Rack Spaces
- Frequencies: 24 Per Band 96 Total w/ Bands Overlapping, & Stepped
- Boost-Cut: Plus or Minus 1 dB Step to 6dB
- Q Range: 0.15 to 17 (Stepped with 12 Steps)