8
2.
LAYOUT OF THE MIXER
2.1
ARCHITECTURE
MONO INPUT CHANNELS
Input channels 1 – 6 are for Mono use; each fitted with an XLR and standard 1/4”
jack socket enabling the channel to be used as a balanced mic input or line input. A
high rating power supply ensures low noise and high transient response in all
conditions.
STEREO INPUT CHANNELS
Input channels 7/8, 9/10, 11/12, 13/14, 15/16 and 17/18 are a further 12 Line Inputs that
are configured as 6 Stereo Input Channels. These are suitable for use with multi-track
tape recorders or output signals from keyboards etc.
CHANNEL OUTPUTS
Smooth, high-quality logarithmic Fader potentiometers (S 3) on each channel feed the signal to the
Master section via Pan-Pots (S 13).
AUX SENDS
Three Aux Send busses are available in the AD 1823. Each
has its own send level control in each channel. AUX 1 is
stereo and AUX 2 /AUX 3 can be made to be Pre/Post
Fader functional, selected by a push button switch (PB 7,
PB 8). AUX 2 /AUX 3 are implemented with PFL (Pre-Fade
Listening) and status LED (L 4) in the Master section (see
diagram below, in Master Output).
TAPE IN/TAPE OUT CONNECTIONS
Connection of Tape Input and Tape Output are provided in the top right hand
corner of the panel with the possibility to adjust the volume of the input signal
(TAPE IN) (S 14). These sockets can be also be used for stereo effects return (Aux
returns).
MASTER OUTPUT
Main Master output levels are controlled by the two high-quality
logarithmic MASTER faders (S 1/2) on the right hand side of the panel.
These are monitored by two LED Bar meters.
2.2
METERING
Clip LEDs (L 1) are available on channels 1 – 6, indicating when the
input signals to these channels ar e overloading. The Master L and R
Outputs are monitored by the LED Bar meters. These L/R bars also
function as mono PFL and Stereo Solo meters.
☞
The main LED Bar meters should ideally read around 0 dB for the
loudest passages. If they frequently reach the Clip LED, you should
either reduce the MASTER fader and/or the individual Channel
faders. You may even find that you will have to reduce the MONO IN
GAIN control (S 5). The situation can usually be corrected by a quick
session of PFL.
