1) TDA7294 2.1 Power amplifier board 80W X 2 +160W Subwoofer -A36 <br><br>2) Power Supply: AC Dual 18-28V  <br><br>3) Dimension: 218mm x 98mm? <br><br>4) Power: 80W x 2 +160W Subwoofer <br><br>5) Subwoofer is made with BTL 2pcs TDA7294 <br><br>6) Potentiometer features: low frequency adjustment? subwoofer volume. Left and right channel volume? treble? bass <div class="params_begin">Specification:</div><div class="params_group"><table border="0" class="params_group_table">  <tr>	<td class="params_group_name">			Package Weight		</td>	<td class="params_props">			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">One Package Weight</td>			<td class="params_value">				0.48kgs / 1.05lb			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Qty per Carton</td>			<td class="params_value">				40			</td>					</tr>		  </table>		</div>			<div class="params_prop ">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Weight</td>			<td class="params_value">				14.10kgs / 31.08lb			</td>					</tr>		  </table>		</div>			<div class="params_prop last_prop">		  <table border="0" class="params_prop_table">			<tr>					<td class="params_name">Carton Size</td>			<td class="params_value">				40cm * 30cm * 30cm / 15.75inch * 11.81inch * 11.81inch			</td>					</tr>		  </table>		</div>		</td>  </tr></table></div><div class="params_end"></div> <p>&nbsp;<img src="//lh3.googleusercontent.com/-oYp3-Nj18a0/Vzl4ATG8byI/AAAAAAAAiB0/flsa52IW_io-CXISwM-o_wO6Gth2NbbmgCCo/s829/sg%2Bback.jpg" alt="" /></p>