24
1073 Preamps 1
Overview 1
The 8424 console has two Neve 1073
®
preamps which are produced to
the exact specifications of the original modules and feature Marinair® input
and output stage transformers. Considerable resources have been devoted
to the acquisition of the original components to ensure the sound remains
true to that of the classic units. The 8424 1073’s have Smart Routing,
enabling them to be routed to console channels 17 & 18 at the push of a
button with no patching required. By default, the preamps are routed to the
XLR outputs at the rear of the console. This XLR output is active even if the
1073 is routed to 500 series slots or to channels 17/18, splitting the signal to
record two outputs from the same source. The 1073 preamps can be hard-
patched to any channel Input B by using an XLR> ¼’’ TRS cable from the two
1073 XLR outputs and into any channel Input B at the rear of the console.
Gain Control 1
The two 1073s on the master section of the console feature the same classic
stepped attenuator which cycles through the dual amplifier gain settings for
either Microphone +20dB to +80dB or Line levels -10dB to +20dB in 5dB
steps. The SIG light at the top of each 1073 preamp illuminates at -
30dB to show level coming into the preamp. The SIG light will illuminate
at +26dB to indicate overload.
Trim Control 1
Beneath the stepped gain control is the rotary gain trim pot which can
adjust the preamp gain from -20dB to +5dB. The trim pot is especially useful
for precise preamp gain control and allows signals to benefit from 1073
harmonic distortion by dialling in high gain levels on the main gain control
then trimming back the final preamp output with the trim pot. The trim pot
smart routing push-function can be pressed to assign the output of each
preamp to channels 17 and 18 Input B respectively. TO CH 17/18 light will
illuminate to indicate that the 1073 outputs are routed to channel 17
and 18.
1073 Trim is not included in the Save/Load Recall feature.
Preamp controls -
Ø = 180° Phase flip
Lo Z = Impedance switch changes signal impedance from 1.2kΩ (HI-Z) to
300Ω (Lo-Z). Useful for ribbon microphones with lower impedance
requirements.
+48v = phantom power for condenser microphones. Phantom power can
only be selected and activated when the 1073 preamp is set to mic gain.
500 series routing 1
Each of the two 1073 preamps can use the 500 series slots 1 or 2 as inserts
before the TO CH routing. The 500-1 500-2 switches at the bottom of the
1073 section activate the 500 slots as inserts.
Note: the 1073 output XLR at the rear of the console will not be affected by
the 500 series insert.
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