Profile: Acoustic Sounds, Inc. is associated with acoustic products such as speakers, headphones and amplifiers. The Creek OBH-11 headphone amplifier is a miniature audio amplifier designed specifically to drive headphones from a line-level source. It has stereo phono sockets on the rear panel for input from any line-level source, along with a DC power jack for connection to a custom OBH power supply adapter. The PH 3000 tube headphone amplifier has features such as 6N16B tubes, two buffered outputs, ALPS Type 27 potentiometer for volume adjustment, CD & AUX inputs and pre-amplifier output.