EQ231G User Manual
2
1. Introduction
The EQ231G is a high quality dual 31 band 1/3 octave graphic equaliser.
The EQ231G also has a switchable 12dB per octave Hi-pass filter.
A delayed by-pass relay allows silent on/off switching and also provides direct
throughput when the unit is not powered.
Centre detent long stroke faders give up to 12dB of cut and boost at 31 ISO centre
frequencies, covering the entire audio spectrum (20 to 20KHz).
Inputs and outputs are electronically balanced.
Each channel has a Peak Indicator illuminating for an equivalent output signal of
+18dBu.
Options
The graphic equaliser section can be supplied with a hybrid combination of gyrators and
inductors, in order to maximise performance in terms of dynamics and signal-to-noise
ratio.
The unit can be augmented by parallel outputs offering a unique transformer distortion
cancellation circuit, this reduces distortion by an order of magnitude compared to
conventional designs.
2. Repairs and warranty
The EQ231G is a ruggedly constructed solid state unit which requires no preventative
or routine maintenance.
The unit is constructed from the highest quality components, which are selected so as
to be conservatively rated for maximum life. Each unit is soak-tested before despatch to
reduce the possibility of component failure in the field.
The LA Audio EQ231G has been manufactured to a high standard using quality
components. If correctly installed and operated the unit should give years of problem
free operation.
However in the event of a defect in material or workmanship causing failure of the unit
within one year of the date of original purchase we will agree to repair, or at our
discretion replace, any defective item without charge for labour or parts. To receive
service under this warranty it is necessary to return the unit to an LA Audio authorised
