Fiio K9 ESS Preorder

Comparison

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<table border=”1″ cellspacing=”0″>
<tbody>
<tr>
<td><strong>Model</strong></td>
<td></td>
<td><strong>K9 Pro</strong></td>
<td><strong>K9 Pro ESS</strong></td>
</tr>
<tr>
<td colspan=”1″ rowspan=”5″><strong>appearance</strong></td>
<td>Dimensions</td>
<td>200*224.5*76mm (height including feet<span style=”color: inherit;”>)</span></td>
<td>200*224.5 * 72mm (height excluding feet<span style=”color: inherit;”>)</span></td>
</tr>
<tr>
<td>weight</td>
<td>About 2750g</td>
<td>About 2700g</td>
</tr>
<tr>
<td>Volume knob</td>
<td>Stainless steel PVD silver</td>
<td>Aluminum alloy PVD gold</td>
</tr>
<tr>
<td>Heat emission hole</td>
<td>/</td>
<td>On both sides</td>
</tr>
<tr>
<td>
<pre>Material&amp;color</pre>
</td>
<td>
<pre>All aluminum alloy, black</pre>
</td>
<td>
<pre>All aluminum alloy, black</pre>
</td>
</tr>
<tr>
<td colspan=”1″ rowspan=”6″>
<pre><strong>Interfaces</strong></pre>
</td>
<td>power supply</td>
<td>AC + built-in Linear Power Supply</td>
<td>AC + built-in Linear Power Supply</td>
</tr>
<tr>
<td rowspan=”1″>Digital input interface</td>
<td rowspan=”1″>USB; Optical; Coaxial; Bluetooth</td>
<td rowspan=”1″>USB; Optical; Coaxial; Bluetooth</td>
</tr>
<tr>
<td>Analog input interface</td>
<td>RCA;4.4mm balanced input</td>
<td>RCA;4.4mm balanced input</td>
</tr>
<tr>
<td>USB interface</td>
<td>USB B ;Type C</td>
<td>USB B ;Type C</td>
</tr>
<tr>
<td>
<pre>Headphone output</pre>
</td>
<td>Balance: XLR-4;4.4mm;
<pre>Single-ended:6.35mm/3.5mm</pre>
</td>
<td>Balance: XLR-4;4.4mm;

Single-ended:6.35mm/3.5mm</td>
</tr>
<tr>
<td>Line out</td>
<td>RCA/Balanced XLR * 2</td>
<td>RCA/Balanced XLR * 2</td>
</tr>
<tr>
<td colspan=”1″ rowspan=”12″><strong>Configuration</strong></td>
<td>
<pre>Power supply unique design</pre>
</td>
<td>
<pre>Digital and Analog Isolation Design</pre>
</td>
<td>
<pre>Digital and Analog Isolation Design</pre>
</td>
</tr>
<tr>
<td>
<pre>Audio processing layers</pre>
</td>
<td>
<pre>6 layers</pre>
</td>
<td>
<pre>6 layers</pre>
</td>
</tr>
<tr>
<td>Clock design</td>
<td>dual mode dual crystal oscillator</td>
<td>dual mode dual crystal oscillator</td>
</tr>
<tr>
<td>filter</td>
<td>6 kinds</td>
<td>7kinds</td>
</tr>
<tr>
<td>USB CHIP</td>
<td>XMOS XUF208</td>
<td>XMOS XUF208</td>
</tr>
<tr>
<td>MQA</td>
<td>Renderer</td>
<td>Renderer</td>
</tr>
<tr>
<td>Bluetooth</td>
<td>QCC5124</td>
<td>QCC5124</td>
</tr>
<tr>
<td>
<pre>Audio clock</pre>
</td>
<td>
<pre>High precision PLL + dual crystal oscillator</pre>
</td>
<td>
<pre>High precision PLL + dual crystal oscillator</pre>
</td>
</tr>
<tr>
<td>Audio DAC</td>
<td>AK4499EQ*1</td>
<td>ES9038Pro*2</td>
</tr>
<tr>
<td>
<pre>Output mode</pre>
</td>
<td>
<pre>HP/LO/DAC</pre>
</td>
<td>
<pre>HP/LO/DAC</pre>
</td>
</tr>
<tr>
<td>
<pre>Gain</pre>
</td>
<td>
<pre>Three gears</pre>
</td>
<td>
<pre>Three gears</pre>
</td>
</tr>
<tr>
<td>
<pre>Amp chip</pre>
</td>
<td>Dual THX AAA 788+</td>
<td>Dual THX AAA 788+</td>
</tr>
<tr>
<td colspan=”1″ rowspan=”5″><strong>Output performance</strong></td>
<td>Output power (PO)</td>
<td>2000mW(32 Ω), 278mW(300 Ω)

&nbsp;</td>
<td>2100mW(32 Ω),281mW(300 Ω)

Balance: 2100mW(32 Ω),1100mW(300 Ω)</td>
</tr>
<tr>
<td>Output power (BAL)</td>
<td>2000mW(32 Ω),1100mW(300 Ω)</td>
<td>2100mW (32Ω)

1100mW (300Ω)</td>
</tr>
<tr>
<td>
<pre>Peak output voltage</pre>
</td>
<td>51Vpp</td>
<td>52Vpp</td>
</tr>
<tr>
<td>THD+N</td>
<td>≤ 0.0003%</td>
<td>≤ 0.00025%</td>
</tr>
<tr>
<td>SNR</td>
<td>≥ 123dB</td>
<td>≥ 129dB</td>
</tr>
<tr>
<td><strong>Other</strong></td>
<td>
<pre>APP control</pre>
</td>
<td>Android/iOS</td>
<td>Android/iOS</td>
</tr>
</tbody>
</table>
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