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Input: Floating, balanced. Maximum input is +25 dBm. The connectors are XLR.
Output: Floating, balanced. Maximum output is +25 dBm. The connectors are XLR.
Input and Output Connections: Pin 2 is Sig + , Pin 3 is Sig- , Pin 1 is GND
Power: 100, 120, 230,240 volt; 50/60 Hz; 55 watts
MDL .6A Fuse for 100V and 120V
MDL .3A Fuse for 230V and 240V
Noise: Measured with the eq set flat and the bandwith controls at max -85dbm
Clipping: +25 dbm
Distortion: With the eq set flat measured 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: There are 24 frequencies per band for a total of 96 frequencies with the bands overlapping. They are stepped on both the mastering and standard units.
Boost-Cut: The standard equalizer has a range to plus or minus 12 db on each band. The Mastering version has a range of plus or minus 6 db. This is stepped 0.5 db steps to 5 db and a 1 db step to 6db on the mastering version.
Bandwith: Bandwidth in octaves is measured at full boost. The maximum is 4 octaves and a minimum is 0.2 octaves. This is a Q range from 0.15 to 17 On the mastering unit this is stepped with 12 steps.

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Crane Song IBIS 2U 4 band EQ, .2 -4 octave bandwidth, +/- 12dB, COLOR

19.00 LBS
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Product Description

The IBIS equalizer can do some very different things.

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 showes 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 is plus
or minus 12 db and is not stepped. The mastering version has a range of 6 db in .5 db steps with a 1 db step between 5 and 6.

The Bandwidth is not stepped on the standard version and is steped on the mastering version. the range is from 0.2 Oct to 4 Oct this is at 12 db of boost.

The low cut is 12 db per octave, but the steep button increases the slope to 24 db per octave. 

The filters are of a special type that provide a very clean and smooth sound. To add flexibility to the equalizer a color knob is inculuded.

The color knob is an additive second / third harmonic distortion type of process, it can be applied to the full program or any one of the 4 bands. When doing a “cut” it will
subtract the harmonic content. The Color Knob is not stepped on the standard version and is stepped on the mastering version.

The use of the color function will allow you to change the equalizer from a very transparent sound to a colored sound. Using it on the low frequencies, band 1, it will add warmth. On
band 3 it will add presence and some nice upper midrange detail. On the high frequency band it will add air.