Crane Song SPIDER - Manual (Page 3)

spider
The Power supply is an external 2 rack space box that is about 12 inches deep. Spider its self is 4 rack
spaces and 6 inches deep. There is a 3-foot power cable to connect the 2 units.
Ventilation is a must if you block air flow you will have trouble. The total
power is in the range of 100 watts of heat. It is best to have one rack
space above and below each part of the system. If you mount them
together leave a space between. Class A circuits run hot, but it turns
out that the discrete class A analog circuits can handle heat much bet-
ter that the digital components.
THE INPUT CHANNEL
The GAIN SWITCH is a 11-position step control which is adjustable from 6 to 66 dB of gain in 6 dB
steps.
The CHANNEL LEVEL CONTROL is a variable control that controls the channel output level and the
stereo bus mix level.
The PAN OR PANORAMIC CONTROL positions the channel output on the left - right stereo bus. This
affects the stereo bus only.
The PHANTOM POWER SWITCH turns on or off the 48V power for phantom power and is active when
the switch is pressed in
The LINE/MIC SWITCH selects between the line and mic inputs for the channel. When the switch is out,
the mic input is selected and when it is pressed in, the line input is selected.
The PHASE SWITCH provides phase reversal for the channel. When the switch is out the channel
operation is with normal phase. When the switch is pressed in the phase is reversed. This is referenced
to pin 2 signal + on the mic input and tip signal + on the line input. The mic connector is an XLR where as
the line input connector is a 1/4" TRS connector.
The LOW CUT FILTER is engaged when the switch is pushed in with a cutoff frequency of approx. 80
Hz. The filter is intended to be used in eliminating rumble, undesired low frequency content, and mud,
while keeping the effect on the desired audio to a minimum. The slope reaches 12 dB pre octave. When
the switch is out, the filter in not engaged and the low frequency response is to 3Hz.
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