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Mono Input Channels

Channel Equalisation

In the process of describing the mono input
channel, controls will be described in order or
signal flow .

48V

PAD

PHASE

PRE

GAIN

DIRECT O/P

Treble Frequency

Treble Gain

Treble Width

bell

Treble Bell

The Heritage 4000’s mono input channels each have a
single balanced microphone input, an insert point via two
(2) quarter-inch (0.25”) TRS jack plugs and a balanced
direct output all conventionally wired.

- Phantom power is provided to allow the connection of

condenser microphones, direct inject boxes and other devices that
r48V phantom power to operate. When depressed the 48V
LED will light, indicating that +48V is being applied.

- When enabled, the PAD switch provides 25dB attenuation to

the input signal which allows the connection of high output
microphones or line-level signals. If the input amplifier is transformer
coupled (option), the pad greatly reduces the risk of saturation at
very low frequencies. When depressed the pad LED will light,
indicating that the pad is enabled.

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- The phase switch causes a 180 degree phase

change (with respect to the input) in the input amplifier. Hence
the input channel signal has inverse phase (with respect to the
input). When depressed the phase LED will light, indicating that
the phase change is being applied.

- The PRE switch, in this instance, controls the operation of

the direct output. When enabled the pre LED is lit to indicate that
the direct output signal is derived PRE-Insert and PRE-EQ.

It is worthy of note that in either state, the direct output is PRE-MUTE and hence is unaffected
by changes in channel mute.

- The input gain of the Heritage 4000’s input is continuously variable from +15dB to

+60dB.

- The direct output pot allows the continuous alteration of the direct output

level from - inf (minus infinity) to +10dB.

The treble equalisation is selectable fully parametric or high shelving via the bell switch.

- Selectable frequency centre. Continuously variable from 1kHz to 20kHz.

- The inner dial on the dual-concentric pot controls the gain of the treble EQ

stage and is continuously variable from -15dB to +15dB with a centre detent at 0dB.

- The outer dial on the dual concentric pot controls the band width of the treble

filter when in fully parametric mode (i.e. when the

switch isdepressed) from 0.1 to 2

octaves with a centre detent at 0.5 octaves.

- When depressed, the treble equaliser full parametric mode is enabled. When

released, the equaliser Midas shelving mode is enabled.

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bell

freq

20k

treble

MIDAS

H4002

PRE

Mono Input Module

The auxtender pod provides each input channel strip with an additional 16 mixes (eight stereo auxes) making the
total number of ‘auxiliary’ (aux) outputs for the console forty (40).

Each stereo aux send is enabled by pressing the numbered switch adjacent to the dual-concentric pan/gain
potentiometer (pot). When enabled the accompanying LED will light according to the pre/post switch position.

Green

= Stereo Aux send is POST-Fader

Red

= Stereo Aud send if PRE-Fader

The inner ring of the dual-concentric pot provides gain control for the aux send while the outer ring provides the
PAN (left-to-right balance) control, allowing the user to position the channel within a stereo image.

dual-concentric pots

Dual-concentric pots have an independent
inner and outer ring to allow a greater range of
controls in the same surface area.

INPUTS

Direct

Output

Return

Send

Microphone

Input

+60

+25

+35