Vacuum Tube Speakers with FM/AM Radio Excellent circuit and fine component ensure good sensitivity Utilizes perfect circuit design for excellent sound effect Particular vacuum tube preamplifier Wooden box and iPod design style Stereo input interface With FM/AM radio Frequency range: FM 88 - 108MHz AM 540 - 1,600kHz S/N: FM > 40dB AM > 30dB Noise sensitivity: FM < 15dB (S/N=30dB) AM < 60dB (S/N = 20dB) Distortion: FM >1% AM < 2% Non-distortion output power: > = 2 x 6W and 16W Speaker frequency response: 80Hz - 16kHz Single signal selectivity: 30dB Amplifier frequency response: 30Hz - 20kHz