Manual

2. Feature
2
Honorable users:
When you use our company's product EQ2231,please read this manual carefully and operate
seriously as per this manual .If you have any questions, please ask the local dealer or visit
our website www.elderaudio.com for help.
EQ2231 is a general graphic equalization with excellent function which is suitable for many
kinds of sound adjustment in the audio projects. below is the function character:
1. The EQ2231 is a two channel graphic equalizer that provides a generous +/-15dB of
control range on each of 30 constant Q frequency bands.
2. Centre bypass. When any eq fader is in its centre detent position, the filter is
automatically bypassed, for optimum performance.
3. Sweepable high pass filter, frequency adjustable from OUT (flat) up to 250Hz.
4. LF Contour Smooth shelving filter, +/-6dB of gain at 50Hz.
5. HF Contour Smooth shelving filter, +/-6dB of gain at 14 kHz.
6. GAIN Used for overall unity gain adjustment. Adjustable from - infinity to +10dB.
7. Triple-point clip detector that indicates red when the internal signal is clipping at any
one of EQ filter, HF/LF contour and Gain.
8. Precise LED indication. When EQ switch is off, the LED indicates the input signal
level. When EQ switch is on, the LED indicates output signal level.
9. Relay bypass. When switched out, or power fails, a high-quality relay switches the
input signal directly to the output connectors.
10. The high-quality relay drive incorporates a power on delay and AC power loss,
ensuring that there is no possibility of on/off thumps being generated by the unit.
11. The standard 3U structure, To make installation easier, we've provided different
interface connectors.