Electronics-Salon Stereo Phono RIAA Preamplifier Module Board， Preamp， MD-A310.<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Best Operating Voltage: +/-9Vdc to +/-15Vdc.</li><li>Gain: 30 / 50dB， DIP switch on board option.</li><li>RIAA Accuracy: &lt;1.5dB.</li><li>Bandwidth: 20 to 20KHz (-3dB).</li><li>Distortion: 0.05% (at 1KHz).</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61eZ7xgG-yL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61TfkN5XdRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51gnte-JTVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51rXBkXb-mL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51eKLU4HkxL.jpg" noproxy>