Optimised for low noise and distortion
ISO frequency centres
Balanced inputs and outputs on XLR and 1/4" jacks
24dB sub-sonic filter
5Hz-200Hz variable high pass filter
EQ bypass
User-definable Peak indicator (-10dB to +22d)
Band gain makeup control
Ground lift switching
The EQ312 provide 31 ISO centred filters per channel.A fader range switch is provided to allow selection of either 6dB or 12dB of band cut or boost about unity gain.
Technical Specifications
Input Impedance 10kOhm, electronically balanced
XLR and 1/4" jackCMRR >50dB Output Impedance 200 Ohm, electronically balanced
XLR and 1/4" jackMax Output Level +22dBu Frequency Response 20Hz-20kHz, +0/-0.5dB Distortion 0.01% @1kHz, +4dBu Noise (unweighted) <-100dBu Peak Indicator Variable from -10dBu to +22dBu Gain -infinity to +6dB Filters - max boost/cut Selectable +/-6dB, +/-12dB High Pass Filter 5Hz-200Hz, 24dB /octave Weight Shipping 5Kg (11lbs) Dimensions 483mm x 220mm x 88mm (2U)
19" x 8.7" x 3.5" (2U)Power IEC connector, 220/240V ac +/-20% 50Hz
Architect's and Engineer's Specifications
The active equaliser shall be a 1 (or 2) channel rack-mountable unit with 15 (or 31) 'high definition' filters per channel placed on ISO centres. Equaliser settings shall be graphically displayed by the position of each filter's centre-detented high-resolution control fader. A fader range switch shall be provided to allow selection of either 6dB or 12dB of band gain or attenuation relative to unity gain.
Inputs and outputs shall be via XLR and 1/4" jack connectors and shall be electronically balanced.
The equaliser shall have a unity gain frequency response of +0/-0.5dB from 20Hz to 20kHz, distortion of no more than 0.01% @ +4dBu, and hum and noise of at least -100dBu unweighted.
The equaliser shall be capable of delivering +22dBu (12V rms) into a 600 Ohm load. Equalisation and operational functions shall include 30-step detented rotary controls for: trimming output gain between -infinity and +6dB, a user-definable peak indication threshold control ranging from -10dB to +22dB, and a 24dB per octave high pass filter with corner frequency continuously variable between 5Hz and 200Hz.
The equaliser shall incorporate a facility to bypass the graphic filter section but not the high pass filter. A rear-mounted panel switch shall be provided to safely isolate signal grounds from AC and chassis grounds.
The equaliser shall be capable of operation from a 220/240V 50Hz AC power source, and shall be 2 rack units (3.5") high. A perspex front panel security cover shall be available.
The published specifications shall be met or exceeded.
The equaliser shall be a model EQ 152/311/312 manufactured by C Audio, Herts, England.
Trade Descriptions Act: C-Audio have a policy of continual product improvement and accordingly reserve the right to change features and specifications without prior notice.