The Bmaster5 is a five-driver hybrid earphone made by BASN Audio for stage and personal use, placed above the triple-driver Bmaster in the company's stage monitor range. BASN sells it in two versions that differ in cable socket and dynamic driver. The MMCX edition lists at USD 159.99 in black, white, gold and blue, while the PE connector edition in midnight black lists at USD 199.99, with sale pricing at USD 175.99.
Key specs that matter
Every earpiece combines one dynamic driver with four balanced armatures. In the PE version the dynamic unit measures 10 mm and uses a diamond-like carbon composite diaphragm, and in the MMCX version it measures 8 mm with a liquid silicone diaphragm. BASN specifies a response from 20 Hz to 22 kHz, 16 ohm impedance and 110 dB sensitivity. Both editions terminate in a 3.5 mm stereo plug and use detachable cables.
Engineering and use context
In BASN's description the moving-coil driver covers the bass while the four armatures take care of the midrange and treble. The maker picked the diamond-like carbon diaphragm of the PE edition for rapid transient response. The PE connectors are described by the maker as lowering contact resistance, and the cable ends use an elastic structure intended to survive repeated plugging on tour. The PE model has black aluminium construction, while the MMCX model relies on sockets that let the lead be replaced or upgraded. A sealed shell isolates the wearer from outside noise at live rock gigs, church services and band rehearsals. Two leads come in the box - a 4-core oxygen-free copper cable for monitoring and a microphone cable with in-line volume control for phones. Twelve pairs of tips in silicone and memory foam, adjustable ear hooks, an aluminium or hard case, a leather pouch, a 6.3 mm adapter and a cleaning brush complete the kit, and BASN offers a 12-month replacement warranty.
Pairing
As an easy and efficient load, the Bmaster5 is driven comfortably from smartphones and portable players, and BASN names headphone amplifiers, in-ear monitor systems, wireless transmitters and receivers and audio interfaces as suitable sources. The full-size adapter covers mixing desks and keyboards with full-size outputs, and the microphone cable handles calls when the earphones are used away from the stage.
Alternatives
The BASN Bmaster is the triple-driver option in the same series, pairing two dynamic units with a single armature in each shell.