<p>ART 300-Series graphic equalizers are designed for live sound, studio, and installation audio applications to provide intuitive sound shaping, versatile features, and silent operation.</p>
<p>The EQ351 is a single-channel 31-band EQ with a switchable range of 6 or 12 dB, for subtle shaping or dramatic sculpting of your sound. The high-pass and low-pass filters can quickly dial in the optimal bass and treble response, and the bypass control lets you compare the dry and processed signals for easy reference.</p>
<p>The rear panel has balanced XLR, balanced 1/4 TRS, and unbalanced RCA connectors, so the EQ351 is easy to integrate into any system. It also features a ground lift switch to help eliminate hum.</p>
<h3 class="ps-0">Features</h3>
<ul>
<li>31-Band Graphic EQ</li>
<li>20mm Sliders with Centre Detent</li>
<li>Switchable 6 dB or 12 dB Range</li>
<li>Variable High-Pass and Low-Pass Filters</li>
<li>Master Level Controls</li>
<li>Balanced XLR and 1/4" TRS Inputs and Outputs</li>
<li>Unbalanced RCA Input and Output</li>
<li>1U Rackmount</li>
</ul>
<h3>Specifications</h3>
<table width="100%">
<tbody>
<tr>
<td class="fs-7 p-1 w-25">Channels</td>
<td class="fs-7 py-1 ps-5">1</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Bands per Channel</td>
<td class="fs-7 py-1 ps-5">31 (1/3 Octave, ISO Spacing)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Accuracy</td>
<td class="fs-7 py-1 ps-5">+/- 3% of Centre Frequency</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Sliders</td>
<td class="fs-7 py-1 ps-5">20 mm with Centre Detent</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Range</td>
<td class="fs-7 py-1 ps-5">+/- 6 dB or +/- 12 dB</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Inputs</td>
<td class="fs-7 py-1 ps-5">Balanced XLR and 1/4"<br />Unbalanced RCA</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Input Impedance</td>
<td class="fs-7 py-1 ps-5">20 kΩ (Balanced)<br />15 kΩ (Unbalanced)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Maximum Input Level</td>
<td class="fs-7 py-1 ps-5">+22 dBm (Level Control at Centre)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Outputs</td>
<td class="fs-7 py-1 ps-5">Balanced XLR and 1/4"<br />Unbalanced RCA</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Output Impedance Level</td>
<td class="fs-7 py-1 ps-5">&lt;150Ω (Typical)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Frequency Response</td>
<td class="fs-7 py-1 ps-5">20 Hz to 20 kHz (+/- 0.5 dB)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Signal to Noise Ratio</td>
<td class="fs-7 py-1 ps-5">-94 dB</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Total Harmonic Distortion</td>
<td class="fs-7 py-1 ps-5">0.01%</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">High-Pass Filter</td>
<td class="fs-7 py-1 ps-5">10 Hz - 250 Hz (12 dB per Octave)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Low-Pass Filter</td>
<td class="fs-7 py-1 ps-5">3 kHz - 40 kHz (12 dB per Octave)</td>
</tr>
<tr>
<td class="fs-7 p-1 w-25">Overload LED Threshold</td>
<td class="fs-7 py-1 ps-5">6 dB below Clipping (All Filters Flat)</td>
</tr>
</tbody>
</table>