INTRODUCTION

    Audiophiles looking for the best in terms of audio reproduction will always put wired connectivity above wireless and yes, I also feel the same way. Of course there's no denying that wireless connectivity is far more versatile since such models ditch cables entirely and offer certain features not found with wired ones (like ANC) but when it comes to audio quality wired connectivity will probably always be in the lead (alas not by much eventually). Fosi Audio is an audio manufacturer I never had the opportunity of cooperating within the past so when they recently reached out asking whether or not I'd like to test their latest i5 Planar Magnetostatic Headphones I was very intrigued.

    Fosi Audio, established in 2017, is dedicated to the development, manufacturing, and global distribution of high-quality HiFi audio products. Our extensive range includes home audio amplifiers, preamps, DACs, headphone amplifiers, speakers, portable DAC amps, and more. Fosi Audio has rapidly emerged as a prominent player in the HiFi audio sector, earning accolades from audiophiles worldwide. With a distribution network spanning over 100 countries, we have sold an impressive 20 million audio products to date. Guided by our mission statement, "Redefining HiFi with Unmatched Value," Fosi Audio is committed to advancing the HiFi industry. We continuously enhance our R&D efforts and collaborate with users to co-create innovative HiFi equipment. Our pledge is to offer exceptional HiFi gear that combines high value for the price, innovative design, cutting edge technology, and premium quality. All our products are backed by a 24-month warranty, ensuring customer satisfaction for audiophiles worldwide.

    The i5 is an full size open back wired model based on two 97mm sized planar magnetic drivers that sport a grand total of 44 high-strength (N50) neodymium magnets (arranged symmetrically - 11 on either side of the diaphragms) together with 2nm ultra-thin diaphragms, 1.3nm thin silver-etched voice coils and acoustic damping rear chambers. This configuration requires a power input of over 100mW (250mW recommended) and allows the i5 to produce a very wide frequency response of 10Hz-50kHz with 28Ohm impedance, 98dB sensitivity and a maximum SPL of 120dB. Fosi Audio has also equipped the i5 with a memory (silicon adjustment slider system) metal headband, dual axis earcups made of CNC machined aluminum and walnut wood, left/right 3.5mm audio ports, and easy to remove Velcro earpads. So, time to see what the brand new i5 Planar Magnetostatic Headphones by Fosi Audio are all about.