A Headphones Reviews Blog
M-Fidelity is a custom in-ear-monitoring and hearing-protection company based in Norway. They were formerly known as “Starkey Norway”, but since their lab’s contract with Starkey has ended they have became “M-Fidelity”. The company has quite a few CIEM offerings in their line, ranging between a large range of prices. Their flagship is called the SA-43 and it has 4 balanced-armature drivers inside of its shells, but there is a twist to that – the user can choose if he wants to turn on the 4th driver in order to change the sound or not. The product of theirs that I am going to write about in this review is called the SA-33. It is very similar to their flagship, and in fact it differs only by not having the 4th BA-driver, meaning that it is actually an SA-43 without the user-controlled sound.
LEAR (an acronym of “Listen & Learn Everything. Acoustic & Audio Revolution) is a Hong-Kong based audio-products manufacturer founded in 2008 (which has recently also opened an HQ in Japan). The company makes portable headphone amplifiers, some different types of cables and adapters and also custom-fit in-ear-monitors (“CIEMs”), but in the past, they’ve also made some universal IEMs too. LEAR is owned by one the most famous audio stores in Hong-Kong, “Forever Source Digital”, which also distributes LEAR’s products. In 2011, LEAR has introduced their CIEMs line. They are proud of it because they say that it is the first CIEMs line to be fully developed, tuned and manufactured in Hong-Kong. About a year afterwards, LEAR released their flagship CIEM, the acrylic-material-made LCM-5, which sports five balanced armature drivers per earpiece with a 3-way crossover. One of the drivers produces the bass, two others are responsible for the midrange and the left two are treble drivers.