Out-of-Stock and Discontinued. The New X-Series MS-1 Model is available, here.

Alessandro Grado MS-1 Heaphones.

Alessandro Grado MS-1 Headphone is a special modified Grado Headphone for musicians/pro users. Please note that these are the latest Music Series One w/mini 2009 version "e" model, although the external box may be relative to the old version. Model listed "w/ mini-plug" comes with a small 1/8" plug plus the adaptor to convert to full size 1/4".

Music Series One
Transducer type: Dynamic
Operating principle: Open air
Frequency response: 20 - 22K Hz
SPL lmV: 100
Nominal impedance: 32 Ohms
Driver match db: 0.1
Features:
- Vented diaphragm
- Non resonant air chamber
- UHPLC voice coil wire
- Standard copper connecting cord

Alessandro High-End Products and Grado Labs have combined their design capabilities to create a new line of headphones. The Music Series headphones focuses on the needs of the music industry. Each model has been specificly tuned to produce extra ordinary results at their respective price points.

Superior Design & Precision
All Music Series headphones have a vented diaphragm design that incorporates a large air chamber. This design lowers the frequency resonance (distortion) of the diaphragm and extends bass response. A unique process to de-stress the diaphragm results in enhanced inner detail. The diaphragm is made of a low mass polymer, carefully formed to broaden resonant modes to reduce their amplitude. The diaphragm's total mass is calculated to provide a full 20 KHZ bandwidth while avoiding breakup at lower frequencies.

The Music Series One, Two and Pro headphones all feature voice-coils that are wound from ultra-high purity, long crystal (UHPLC) oxygen free copper. Ultra-high conductivity copper yields the clearest transmission and lowest coloration possible. This combined with high power neodymium magnets provide maximum efficiency giving a smoother, cleaner and more dynamic sound and a larger perceived sound stage.