Part of the Processing Section of the Inline Module are the hi-pass and low-pass filters and the insert section. The filters are a separate element that operates independent of the EQ. Wide sweep ranges allow drastic treatments. The fully buffered, switched insert section can be routed to different points.

Inline Module 5MT Series D

Filters

The Filters Section of the IO5-D/c Inline Module is totally independent of the equalizer. Both the hi pass filter and the low pass filter are 'maximum flat' filters to assure best possible frequency and phase response. The steep rate of both filters is 12 dB/oct. The sweep range allows to adjust the edge frequency of the high-pass filter from OFF, which means below 20 Hz, to 600 Hz. The low-pass filter has a sweep range from OFF (more than 20 kHz) to 1 kHz. The scaling of the pots is carefully adjusted to make precise adjustment possible in the mostly used frequency range between 40 and 150 Hz for the high pass and between Off and 7 kHz for the low pass filter. The unit is normally bypassed. The FILT switch inserts the section into the signal chain.

Insert Section

The inline module has one insert section that can be routed by two switches to 4 points inside the module. The default position of the insert section is post EQ, pre fader, in the tape chain. The PRE switch routs the insert post the filters while the REC switch moves the section to the record chain. The pre switch works in the same way if the section is switched to record.

The entire insert section is fully buffered and it operates on 0 dB level. The output can drive 600 ohm loads. It is always available on the insert output jack on the patch bay. The insert input is half normalized with the output. The INS switch activates the insert input.

The
Block Diagram Insert Section
shows how the insert section is configured.

Though there is only one insert, it is possible to use the half normalized break jacks of the tape input, the line input and the multitrack input to insert additional equiment on the patch bay. All these inputs and outputs operate on the same, 0 dB, line level.