QULOOS MUB1 Portable USB & Bluetooth DAC/Amplifer Review Introduction: Quloos (former QLS HiFi) is a Chinese brand located in ShenZhen, GuangDong, China, which is specialized in design and production of High End Desktop & Portable Audio Players, DAC’s and Amplifiers. The MUB1 is the companies latest an All-in One portable audio solution in a pocket friendly package. It is a versatile and powerful device that can serve as a portable USB DAC/Amplifier, a High-Definition Bluetooth Player that supports the APTX-HD, APTX, AAC SBC and the Hi-Res LDAC...

KEFINE Klanar IEM Review Introduction: KEFINE is a new brand focusing on portable audio products. The brand name KEFINE (Kəfaɪn) comes from the combination of the founder name Ke (Kə) and the word “Refine”. KEFINE is planning to provide refined audio products for music lovers with affordable price. The first product is a new Planar Driver IEM named Klanar that has been inspired from the word Planar. The Klanar features a 14.5 mm diameter customized Planar Magnetic Driver located inside a 5-Axis CNC machined Aluminum Alloy shell that has a pretty...

FiiO FW5 TWS IEM Review Introduction: FiiO FW5 is the brand new True Wireless (TWS) earphone of the company with a 2BA + 1DD Hybrid Driver configuration that has some pretty interesting features such like an independent AK4332 DAC chipset, Qualcomm QC5141 Bluetooth SoC with LHDC, AptX Adaptive codec support, IPX4 Water Resistance, up to 7hours of battery life and many more. Disclaimer: I would like to thank FiiO for providing me the FW5 TWS Earphone for review purposes. I am not affiliated with FiiO beyond this review and these words...

FiiO K7 DAC & Headphone Amplifier Review Introduction: The K7 is FiiO’s latest true balanced desktop DAC & Headphone Amplifier that comes with some interesting specs such like a Dual AK4493SEQ DAC Chip setup, 2x THX AAA 788+ amplifiers, XMOS USB receiver and NJU72315+OP Volume chips. Moreover, the device features USB, Optical, Coaxial, RCA inputs and both 6.35mm Single-Ended + 4.4mm Balanced analog output interfaces. Disclaimer: I would like to thank FiiO for providing me the K7 DAC & Headphone Amplifier as review sample. I am not...

Quloos QLS MC01 Review Introduction: Quloos (former QLS HiFi) is a Chinese brand located in ShenZhen, GuangDong, China, which is specialized in design and production of High End Desktop & Portable Audio Players, DAC’s and Amplifiers. The Quloos QLS MSC1 that I will now review for you is the company’s first USB DAC/Amplifier dongle. It features 2x Cirrus Logic CS43131 DAC Chips, an Advanced 2×6 Layer PCB Design, Panasonic Film Capacitors, low noise LDO LT3042 & ADM7171 regulators and a Low-Power MCU Management chip. Moreover, it is equipped with...

IKKO Heimdallr ITB03 BT & USB DAC/Amplifier Review Introduction: IKKO Audio (IKKO Technology Co. Limited) is a relative new Chinese brand that designs & develops Hi-Fi components like In-Ear Monitors, Portable DAC/AMP, Docking Stations and many more. The Heimdallr ITB03 that I will now review for you is the companies first Portable Bluetooth & USB DAC/Amplifier, which is an Ultra-Portable and very capable All-in One solution that is compatible with a wide variety of platforms including Android, iOS, MAC OS, Windows 10/11, Nintendo Switch...

FiiO FH7S Hybrid IEM Review Introduction: The FiiO FH7S is the successor of the FH7 that has been released 2019. The FH7S comes with a 4BA+1DD driver Hybrid Driver configuration same like the original FH7, which now located inside an impressive looking monitor shell that comes with a so called Sci-Fi Armor Design. Moreover, the FH7S features FiiO’s 2nd generation semi-open design dedicated for the 13.6mm large DLC diaphragm Dynamic Driver. Some other remarkable features are the Patented S.TURBO Acoustic Design, FiiO’s all new HS18 Silicone...

FiiO BTR7 Ultra Portable Bluetooth & USB DAC/AMP Review Introduction: The BTR7 is FiiO’s latest flagship All-in One BT & USB DAC Amplifier with MQA support, which offers some impressive hardware features such like Dual ESS9219C DAC Chips, Qualcomm’s latest QCC5124 Bluetooth Chipset with LDAC, aptX HD, aptX LL, aptX, AAC, SBC audio codec support, XMOS XUF208 USB input, THX AAA™ Achromatic Audio Amplifier & Fully Balanced Design and many more that I will now review for you. Disclaimer: I would like to thank FiiO for providing me the...

Questyle M15 Ultra Portable USB DAC/Amplifier Review Introduction: Questyle Audio is a Chinese company that is specialized in research of high-tech lossless audio system such like Desktop Amplifiers (CMA800/CMA800R), DAC/Amplifiers (CMA Twelve, CMA Fifteen, CMA 400i), Wireless Audio Systems, Portable DAC’s (M12) and Audio Players (QPM, QP2R). Questyle has won over 20 international awards since 2015, such as CES Innovation Award, iF Industrial Design Award, and VGP Lifestyle Award, while Foxconn Technology Group is a strategic partner of the...

FiiO M11 Plus Portable Digital Audio Player Review Introduction: I am sure that many audiophiles do remember that FiiO released last year the M11 Plus LTD with the AK4497*2 Dual DAC chipset, but since the fire outbreak in AKM’s factory the quantity of any AKM DAC chip is very limited on the market. However, FiiO promised that they do plan to release a M11 Plus with ESS Saber DAC chip in 2022. The M11 Plus that I will now review for you comes with the latest ESS chipset, that utilizes two ES9068AS DAC’s (Digital to Analog Converter), which do...

FiiO UTWS5 TWS BT Amplifier Review Introduction: The UTWS3 was a decent BT Amplifier Module that was available with both MMCX and 2Pin (0.78mm) connector interfaces, which I highly enjoyed with IEM’s like the FH7, FH5 and FH3. The brand new UTWS5 is the successor of the UTWS3, which comes with some interesting features like the new Qualcomm QCC5141 Bluetooth 5.2 SoC with SBC/AAC/aptX and aptX Adaptive codec support, an independent AK4332 DAC for each channel, IPX4 water resistance, up to 8 hours of playback time with a single charge and many...

FiiO FH9 Hybrid IEM Review Introduction: 2021 was a very productive year for FiiO, especially when it comes to In-Ear Monitors, whether Hybrids (FH5s/FH5s Pro), Single Dynamic Driver (FD3, FD5, FD7/FDX) and Pure Balanced Armature Driver (FA7s) In-Ear Monitors. The FH9 is the brand new flagship Hybrid IEM of the company that features a 6BA+1DD driver configuration. The Hybrid Driver configuration is a combination of 6x Balanced Armature Drivers + 1x Dynamic Driver with a 13.6mm Diameter Self-Developed DLC (Diamond like Carbon) Diaphragm. The...

Earsonics ONYX IEM Review Introduction: Earsonics is a famous French company that was founded in 2005 by Franck Lopez and is specialized in the design and production of Custom (CIEM) and Universal (UIEM) In-Ear Monitors and gained a high popularity in the Audiophile community with products such like SM3, S-EM6, SM64, SEM-9, Velvet, Grace, Spark/Blade/Corsa and many more. The ONYX is a project created by Earsonics with the goal to offer a High-End Universal IEM for an affordable price. It was therefore necessary to reduce distribution and...

FiiO FD7 Pure Beryllium Diaphragm Dynamic Driver IEM Review Introduction: FiiO announced last year in August their Brand New Dynamic Driver Flagship IEM the FD7 together with the FDX, which is their 14th Anniversary Limited (Collector’s) Edition In-Ear Monitor. The FD7 features a top tier Single Dynamic Driver with a 12mm Pure Beryllium Diaphragm and utilizes a front acoustic prism & semi-open acoustic design. Moreover, it comes with an anti-standing wave “volcanic field” system and offers 3 pairs of interchangeable sound tubes. Product...

FiiO FD3 Dynamic Driver IEM Review Introduction: The FD3 is the latest member of the FD Series (FiiO Dynamic Driver Series) that features a pretty large 12mm Diameter Dynamic Driver with DLC (Diamond Like Carbon) Diaphragm Driver that is equipped with a robust magnet of 1.5 Tesla magnetic flux paired with an ultra-fine copper-clad aluminum Japanese Daikoku voice coil. Moreover, it comes with some interesting features such like an acoustic prism design, changeable sound tuning tubes and a semi acoustic open design. FiiO Product Website...

SIVGA SV021 (Robin) Headphone Review Introduction: SIVGA Electronic Technology Co., Ltd, is a Chinese brand located in Dongguan city of China, focuses on designing and producing high-end audio products include wooden earphones, In-Ear Monitors with multiple drivers and planar magnet headphones. All products of the company are designed and produced internally. The SIVGA SV021 (also called Robin) is the latest member of the Headphone Series with Dynamic Driver. The SV021 features a 50mm diameter Dynamic Driver with an in-house developed Special...

Earsonics CORSA Universal IEM Review Introduction: Earsonics is a famous French company that was founded in 2005 by Franck Lopez and is specialized in the design and production of Custom (CIEM) and Universal (UIEM) In-Ear Monitors and gained a high popularity in the Audiophile community with products such like SM3, S-EM6, SM64, SEM-9, Velvet and many more. The Earsonics CORSA that I will now review for you is the latest Universal IEM of the company that features a 3BA Tripe Driver (3x Balanced Armature Drivers per side) configuration that are...

METALURE WAVE IEM Review Introduction: METALURE originated in New York and the team is formed by the audio design team from NuForce with the mission to achieve diversified fashion craftsmanship with continuous development to bring products on the market with a natural luxury. METALURE Webpage The WAVE is an In-Ear Monitor that features a solid Brass Housing and special Dynamic Driver with a polymer coated Liquid Silicone Rubber (L.S.R.) diaphragm, which is called the NOMAX diaphragm. Disclaimer: I would like to thank METALURE for...

ISN Audio CU4 Upgrade Cable Review Introduction: ISN Audio is a relative new Chinese brand that is producing portable audio gears like Earbuds, In-Ear Monitors and Cables. The ISN Audio CU4 is a 4 core High Purity Single Crystal Copper upgrade cable with 115 strands and 460 wire (4×115) conductors in total. ISN Audio Official Website: https://isnaudio.com/ Disclaimer: I would like to thank ISN Audio for providing me the CU4 Upgrade Cable sample via Penon Audio for review purposes. I am not affiliated with ISN Audio and Penon Audio...

SIVGA Phoenix Headphone Review Introduction: SIVGA Electronic Technology Co., Ltd, is a Chinese brand located in Dongguan city of China, focuses on designing and producing high-end audio products include wooden earphones, In-Ear Monitors with multiple drivers and planar magnet headphones. All products of the company are designed and produced internally. The SIVGA Phoenix is the latest member of the Over-Ear Headphone product series with an open back design that features a 50mm diameter dynamic driver. This dynamic driver has a uniquely developed...