Spark High Definition In-ear Headphones are the combination of precision acoustics, unique design and expert ergonomic research. Powerful and accurate acoustics are achieved through high performance dynamic driver and special high definition acoustic filter built-in, resulting in full, explosive bass, intense mid-range and clear treble frequency response that will put a smile on your face...
“ Check out the thread & review here as well: http://www.head-fi.org/t/604971/the-starkey-hf-2-thread-affordable-custom-iem-for-your-phone Intro Not long ago Starkey launched their canal-sized custom in-ear monitor HF-2. I've been lucky enough to get to review it and share my thoughts with the rest of the Head-Fi community. The Starkey HF-2 utilizes a 2-way...” --Staal
General Info Taken From Starkey: Proprietary precision-balanced armatures Dual low, single mid, single high Integrated 3-way crossover Noise isolation -30dB Frequency response: 30-18000 Hz Input sensitivity: 104dB Impedance: 50Ohms Price: $1,048,00 + Shipping 2-year warranty on parts & labor Review: http://www.head-fi.org/forum/thread/494930/review-starkey-sa-43-jh-13-pro-jh-16-pro