SOUNDCRAFT Gigrac 600 SOUNDCRAFT LIVE 4.3

SOUNDCRAFT LIVE 4.2

Mixing in larger venues requires more than just extra inputs and outputs - you need effective means of controlling the way that signals are routed, along with facilities such as grouping and mutes that make it easy to deal with all those channels. The Spirit Live 42, in frame sizes from 12 to 40 channels, is designed for just these situations.

Soundcraft's UltraMic Plus preamp give a 66dB gain range, making it capable of handling a wide range of input signals. The EQ on mono channels is a 4-band configuration with two swept mids, with six aux sends. It has full mute group facilities with four mute groups controlled from the master section.

All mono inputs also feature pre-fade listen, 100mm linear faders, insert points, direct channel outputs, individually switchable +48V phantom power, phase reverse, EQ in/out switching and a hi-pass filter. The stereo inputs - two on every 12-channel frame, four on other frame sizes - feature shelving 2-band EQ and six aux sends.

In the group section, all four groups have 100mm linear faders, insert points, and individual output jacks. The six auxiliary master sends have their own rotary level controls with four stereo returns. Metering is via six 12-segment bargraphs.

It also has a 10x2 matrix in the master section, making it easier to deal with multi-speaker systems in theatre sound reinforcement. The main stereo XLR outputs are ground compensated with insert points and a separate mono output is available to feed a centre speaker cluster.

Key Features
	•	12, 16, 24, 32 and 40 channel frame sizes
	•	4 mute groups
	•	Additional outputs on 6 x 2 matrix
	•	2 or 4 additional stereo inputs
	•	Phase reverse on mono inputs
	•	18dB/octave high-pass filter
	•	6 aux send, 4 of them pre-post switchable
	•	4 stereo returns

SPECIFICATIONS
Noise	Measured RMS, 22Hz to 22kHz Bandwidth.Line inputs selected at unity gain and terminated 150Ω
Mix	26 Inputs routed to Mix, faders at unity, muted	-82dBu
Mix	Mix Faders down	-97dBu
Aux	26 Inputs routed, output at max, input faders down	-84dBu
Direct Output	Input to Direct Output @ unity gain	-87dBu
Direct Output	Input to Direct Output @ 40dB gain	-77dBu
Matrix Output	Matrix Output at max, Sends down	-95dBu
EIN	Microphone Input, Maximum Gain, terminated 150R	-129dBu
Crosstalk	Wide Band except where stated
	Typical Channel Fader Attenuation	>80dB
	Typical Aux Attenuation	>80dB
	Typical Pan Isolation	>70dB
	Adjacent Channel Crosstalk	>85dB
	Adjacent Channel Crosstalk	100dB @ 1kHz
Frequency Response	20Hz to 20kHz	-1dB
THD	-10dBu Input routed to Mix, +20dBu out @ 1kHz	<0.006%
CMRR	Typical at max gain @ 1kHz	-85dB
CMRR	Typical at any gain @ 50Hz	-65dB
Input & Output Impedances	Microphone Input	1.8kΩ
	Line Input	10kΩ
	Stereo Input	8.6kΩ
	Cass/CD Input	12.8kΩ
	Stereo Return	19kΩ
Input & Output Levels	Mic/Line Input Maximum Level	+28dBu
	Stereo Input	+25dBu
	Cass/CD Input	+18dBu
	Stereo Return	+22dBu
	Nominal Input for + 4dBu at Mix Output, level at ‘7’	-10dBu (Lo)
	Nominal Input for + 4dBu at Mix Output, level at ‘7’	-20dBV (Hi)
	Max Mic Gain through longest path to Mix	84dB

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