Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
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EF2C
reviews
Manufacturer details
- Input Impedance: 47k Ohms
- Output Impedance: 32 - 300 Ohms
- Max. Power Output: 600mW@35 Ohms
- Line-in Max. Output: 4.6V
- Distortion (Line-in): 2%
- USB DAC Max. Output: 3.2V
- Distortion (USB DAC): 0.46%
- Frequency Response: 20Hz-20kHz
- S/N: 90dB
- Power Supply: 110v/220v
- Dimensions: 5.7" (144mm) Wide x 4.3" (110mm) Deep x 3.1" (78mm) High
- Weight: 3lbs (1.36kg)
The EF2C combines the warmth and smooth tonal character of a vacuum tube with the precision, detail, and drive of solid-state components. This hybrid approach delivers the best of both worlds: musical richness with exceptional clarity.
Step Potentiometer – Precision Volume Control
Equipped with a 24-step potentiometer, the EF2C ensures precise channel balance and consistent sound quality at every listening level. Each discrete step preserves sonic integrity while allowing fine-tuned volume adjustment.
Hi-Fi Sound Quality – Built for Purity
Engineered with premium components, the EF2C faithfully reproduces music with accuracy and nuance. Its design reflects a commitment to audiophile-grade performance across all sources.
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- HIFIMAN offers a wide range of headphone models, varying in tonality from warm to neutral to balanced, allowing for different listening preferences and catering to various audiophile tastes.
- The brand is known for their "Stealth Magnet" design which reduces wave diffraction turbulence to lower distortion and improve transparency.
- They incorporate planar magnetic drivers in many of their headphones, known for their speed, detail, and impactful bass response.
Select products
EDITION XS:
- Positioning: An entry-level headphone offering compact design and affordability.
- Description: Features stealth magnets design with a frequency response from 8Hz to 50kHz and low impedance for basic home or portable use. Compared to the mid-range options like AUDIVINA and HE1000SE, it provides essential performance for smaller rooms.
AUDIVINA:
- Positioning: A mid-range headphone balancing clear audio performance with a reasonable price.
- Description: Uses refined driver technology to deliver a natural sound signature and balanced frequency response for typical home listening setups. Compared to the simple approach of Edition XS and the more precision-focused HE1000SE, it offers enhanced detail while keeping costs moderate.
HE1000SE:
- Positioning: A mid-range headphone engineered for improved clarity and dynamic range.
- Description: Offers an extended frequency response from 8Hz to 65kHz and higher sensitivity for clearer audio reproduction in critical listening. In contrast to AUDIVINA's balanced performance, HE1000SE emphasizes precise tuning and a robust build.
SUSVARA:
- Positioning: A high-end headphone crafted for immersive and detailed sound reproduction.
- Description: Incorporates advanced driver engineering that extends its frequency range from 6Hz to 75kHz, supporting a wider and more open soundstage. Compared to mid-range models like HE1000SE and AUDIVINA, it offers broader performance and refined tuning.
SUSVARA UNVEILED:
- Positioning: A premium headphone representing the pinnacle of the brand's lineup.
- Description: Features cutting-edge materials and driver technologies that produce exceptionally detailed sound across its wide frequency spectrum. When compared with SUSVARA and other models, it delivers superior engineering and an expansive performance.
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Used
HIFIMAN
What if you spend more?
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Product Strengths
- Improved battery management offering faster charging rates and better efficiency than its predecessor
- Features a new USB-C data input for greater flexibility alongside other inputs
- Offers the world's first lossless DSP for tone adjustments without degrading sound quality, providing customization options
- Excellent resolution and dynamics with a large soundstage and extreme detail
Product Considerations
- The Mojo 2 can get warm when in a pocket for a period of time
- Complicated menu navigation with color-coded buttons that may require the manual
- Still uses Micro-USB for charging, which some find outdated
Takeaway: The Chord Mojo 2 is an exceptional DAC/headphone amplifier for those seeking high-resolution audio and customized sound in a portable format that is easy to move. Its sonic accuracy, detailed soundstage, and improved features provide a versatile and enjoyable listening experience, making it a worthwhile consideration for audio enthusiasts.
Video review
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Product Strengths
- Versatile connectivity with both wireless (Bluetooth 5.1 with various codecs) and wired options (USB, S/PDIF, analog inputs) makes it suitable for various setups—from desktop to portable usage
- Eloquent, informative, and entertaining sound quality, able to produce clear, non-artificial sound across different headphones
- Features such as XBass II and XSpace provide additional sound shaping options for the user to customize the sound to their liking
- The aluminum build provides a robust and premium feel, with a design that's described as sleek and comfortable to handle
Product Considerations
- The user interface is not very intuitive
- Decent headphones are needed to reveal its quality
- The OLED screen can be difficult to read
- Battery life is around six to eight hours
Comparisons (according to reviewers)
- Compared to the hip-dac2, the Gryphon offers better sound quality, more features, and flexibility
- Compared to the iFi GO bar, the Gryphon is bigger and has a built-in battery, and the GO bar is much smaller and draws power from the source device
- Compared to the iDSD Diablo, the Diablo has more power for very demanding headphones, Gryphon has more functions
- Compared to the Zen DAC, the xDSD Gryphon has a more sophisticated and detailed sound
Takeaway: The iFi xDSD Gryphon is a portable and versatile device delivering high-quality sound with extensive features that cater to audiophiles. Its ability to improve sound quality from various sources and its robust build make it a worthwhile investment for music lovers on the go.
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Product Strengths
- Fully balanced technology, with balanced inputs and outputs.
- Delivers powerful amplification, with up to 7.5 watts of power, capable of driving a wide range of headphones, including hard-to-drive models.
- Features a linear power supply with a large transformer and capacitor bank, providing a stable and powerful power source.
- Provides two current modes (50mA and 100mA) to tailor the sound tonality, allowing users to choose between a more forward/analytical sound and a warmer/fuller sound.
- Employs an R2R network for volume control, ensuring channel balance even at low volumes.
Product Considerations
- Runs quite hot due to its Class A amplification, requiring adequate ventilation, with chassis temperatures potentially reaching up to 50 degrees Celsius, and the unit may switch from 100mA to 50mA mode if it overheats.
- High power output might not be ideal for very sensitive IEMs, potentially limiting volume control flexibility.
- The preamplifier output is always active, meaning it doesn't mute when headphones are plugged in, requiring caution to prevent damage.
- The LCD display cannot be dimmed or switched off, and the red color of the 100mA mode may appear washed out.
- Some report volume slots are not regular or have large jumps, and/or that the remote control can be buggy.
Comparisons (according to reviewers)
- Vs. Topping A90 Discrete: The S17 has a richer sound, wider soundstage, and easier dynamics, especially in 100mA mode, placing it in a higher tier.
- Vs. Topping A90D: The S17 Pro is capable of even stronger dynamic swings, with a slightly cleaner and less cluttered soundstage.
- Vs. Violectric V222: The Aune S17 Pro is more 'tubey' and warmer sounding than the V222.
- Vs. HIFIMAN EF600: The Aune S17 has better volume control, higher dynamic range, better driving power, and better resolution.
Takeaway: The Aune S17 Pro is a powerful and versatile headphone amplifier that delivers rich, detailed sound, allowing listeners to experience music in new ways. With its balanced design and flexible current modes, it can enhance a wide range of headphones and audio setups.
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Unleash the Power of Composite Amplifier Topology
The CH-Amp incorporates a Composite Amplifier Topology, combining the best of both worlds with excellent DC and AC characteristics. Unlike traditional power amplifiers that can experience errors and performance degradation when driving heavy loads, the composite op-amp eliminates these issues, ensuring optimal circuit performance. Benefit from improved DC output-offset and enhanced overall circuitry performance with the CH-Amp.
Unparalleled Design and Construction
EarMen CH-Amp is meticulously crafted with high-quality components, including WIMA capacitors, audio electrolytes, MELF low noise resistors, and SoundPlus OPA1642 operational amplifiers. This carefully chosen combination results in a neutral sound signature and exceptional characteristics, including low signal-to-noise ratio, ultra-low Total Harmonic Distortion (THD), and excellent frequency response. Experience pristine audio reproduction and plenty of power, even under high loads.
Flexible Connectivity and Control
CH-Amp offers two key features: preamp outs and a gain switch. Take advantage of the balanced and single-ended preamp outputs, allowing you to connect powered monitors for a complete audio system. The gain switch provides precise control over output level and impedance, ensuring optimal matching with your headphones. Tailor your audio experience to perfection with EarMen CH-Amp.
Exceptional Craftsmanship
CH-Amp features a full block aluminum chassis, guaranteeing durability and robustness. Its compact design allows seamless integration into any environment or home audio system. The PCB is securely embedded within the solid aluminum housing, providing enhanced protection and insulation against external influences. Enjoy a reliable and long-lasting audio companion with EarMen CH-Amp.
Fully Balanced Architecture for Pure Sound
EarMen CH-Amp embraces a fully balanced architecture, preserving the integrity of the audio signal from the source to the output. The balanced outputs remain intact and are only amplified, ensuring pristine sound reproduction. The single-ended inputs are expertly converted to balanced signals without phase shift or imbalance, guaranteeing optimal phase alignment. Say goodbye to unwanted artifacts and immerse yourself in pure audio bliss.
Extra Low Linear Power Supply
With the CH-Amp, you also receive an extra low noise linear power supply designed without compromise, using top-of-the-line components and the latest circuit design techniques. EarMen's linear power supply is both reliable and simplistic, producing minimal noise for an undistorted audio experience. It is custom-made for our devices to deliver exceptional efficiency and exceed your expectations. Furthermore, it includes protection against current overload, short circuit, and thermal overload, adhering to the highest safety standards.
Release the Full Potential: Create Your All-in-One System
The EarMen Linear power supply can be seamlessly connected to the EarMen Tradutto DAC and EarMen Staccato Streamer, transforming your setup into a powerful all-in-one audio system. Enjoy the convenience and flexibility of a unified audio solution without compromising on performance.
Product Strengths
- Very clean, smooth, and enjoyable sound without harsh edges or digitization
- Plenty of power for a wide range of headphones and IEMs due to its 3.8 watts into a 32 ohm load
- Comes with a linear power supply that provides clean power and minimizes noise
- Includes a remote control that can also control the matching DAC
- Offers versatile connectivity with balanced and single-ended pre-outputs, as well as multiple line inputs
Product Considerations
- 4.4mm connections are used for balanced input/output, which may require purchasing new cables if existing XLR cables are already owned
- The VU meter on the front of the device may not be very useful for normal listening levels
- Settings are not held when the amplifier is turned off
- There is noise in headphones when the unit is turned off or on from standby mode
Comparisons (according to reviewers)
- Vs Burson Audio Soloist 3XP: Champ provides more body and weight to the sound, while the Soloist 3XP offers greater space and separation
Takeaway: The CH-Amp is a compact and versatile amplifier that delivers a clean and enjoyable sound, making it a great choice for those looking for a high-quality listening experience. Its ability to pair well with a variety of headphones and IEMs makes it a worthwhile addition to any setup.
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What competes at this price?
Our Summary
Product Strengths
- Well-built and substantial, with a clean, industrial design.
- Feature-packed, including Hifiman's Himalaya R2R DAC chip, which is unusual for its price point.
- Offers both high and low gain modes, and oversampling filter selection (OS/NOS).
- Delivers a natural and balanced sound signature, with a smooth and organic tonal reproduction.
- Powerful amplifier section, capable of driving most full-sized headphones comfortably.
- Supports network streaming via Ethernet.
Product Considerations
- Can get a little warm during long listening sessions.
- Soundstage is intimate, prioritizing depth over width.
- Resolution and transparency may be somewhat lacking compared to some competitors.
- Lacks an optical S-PDIF input.
- Missing a 4.4mm balanced output.
Comparisons (according to reviewers)
- The EF500 outshines its sibling, the EF499, in two crucial aspects.
Takeaway: The EF500 is a feature-rich DAC/AMP that offers a natural and balanced sound, along with streaming capabilities and solid power, making it a good choice for people who stream music. Its build quality and versatile features make it a great addition to any desktop setup.
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Our Summary
Product Strengths
- Affordable all-in-one DAC/AMP with good value, especially for a wired streamer that supports Tidal Connect and Spotify Connect
- Natural sound signature that is almost impossible to replicate with chip-based DACs and op-amp-based headphone amplifiers, especially at this price point
- Substantial power output and can drive various headphones, including planar magnetics
- Generally positive build quality, with an all-metal chassis that contributes to a sense of durability and solidity
- It offers both oversampling and non-oversampling modes
Product Considerations
- There are no analog inputs, so an external DAC cannot be used with it
- The Philips R2R DAC supports up to DSD64 and PCM at 24BIT/192kHz, which might not be enough for some users
- The EF499 lacks a preamp function, the line out at the back will always output the signal at maximum volume
- It may not be the best choice for super-sensitive IEMs due to potential noise
- It might sound too forward with certain headphones, according to one reviewer
Comparisons (according to reviewers)
- Vs EF500: The EF500 is considerably more resolving and provides more micro level information
- Vs EF500: The EF500 has better sub-bass response and overall more dynamic presentation
- Vs EF400: The EF499 provides a wired streamer that works great with Tidal Connect and Spotify Connect, but less impressive dynamics, resolution transparency, and dynamics
- Vs aune X1s GT: The EF499 is much more powerful and has a stronger kick, while the aune X1s GT has Bluetooth
- Vs Creative X5: The EF499 is purer in the sound, with more driving power and better control of all headphones
- Vs KAEI TAP-1 DACs: The EF499 sounds detailed, forward, but has a low distortion, has a much stronger and fuller bass, deeper extension and a higher extension in the treble with better clarity, and more instrument separation
Takeaway: The EF499 is a solid entry-level all-in-one unit that delivers a natural and musical sound, making it great for those who want to connect with their music. Its streaming capabilities and powerful headphone amplifier offer amazing value.
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Our Summary
Product Strengths
- Detailed and expansive presentation, offering a sonic upgrade to phones, especially when portability is a priority
- Versatile, with both wired and wireless connectivity options, including balanced and unbalanced headphone outputs
- Impressively small size and lightweight design, making it pocket-friendly and convenient for on-the-go use
- Sound quality is generally linear, with fast and accurate bass, flat and clean mids, and a detailed treble that is not harsh
- XBass and XSpace features offer customized listening experiences
- Build quality and aesthetics are generally well-received, with its design standing out from other devices
- ChronoDial volume knob is particularly praised for its tactile feel and functionality
Product Considerations
- Black rubberized plastic casing can feel a bit flimsy to some users
- Some reviewers noted hiss with sensitive IEMs, especially on the balanced output
- Battery life estimation can be unreliable
- No dedicated app for the device, limiting EQ and DSP options
- Lacks a clip, making it less convenient for truly portable use
Comparisons (according to reviewers)
- Compared to the Audiolab M-DAC Nano, the Go Blu offers a wider soundstage, better separation, and dynamic sensitivity, though the M-DAC Nano is fractionally punchier in the bass
- Compared to the AudioQuest DragonFly Cobalt, the Go Blu is a wireless proposition, unlike the DragonFly Cobalt, which is a USB plug-in DAC
- Compared to the FiiO Q3, the iFi GO blu highs are a bit too brilliant, but everything else sounded quite impressive
- Compared to the NuPrime Hi-mDAC, the iFi GO Blu mids sound a lot like it, even if voices are slightly less natural
- Compared to the Hidizs S9 Pro and Aune BU2, the GO Blu provides a relaxed sound and has better build and functionality compared to the Hidizs S9 Pro, but is better when using bluetooth compared to Aune BU2, however when competing on wired terms, the Aune is clearer
Takeaway: The iFi GO blu is a tiny but mighty device that delivers impressive sound and versatility—improving the wireless music experience. It is easy to use and has some cool features, making it a good pick for anyone looking for a portable upgrade for their headphones.
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Our Summary
Product Strengths
- Phenomenal sound quality.
- Very usable and enjoyable interaction due to a physical volume knob.
- Plenty of power for almost everything and can drive just about anything.
- Versatile; it can be used as a desktop all-in-one, a Bluetooth portable DAC/amp, a portable amplifier, and even a DAC for speakers.
Product Considerations
- Susceptible to EMI noises, which can be a deal breaker; static noises, pops, and crackle sounds can occur when a phone is placed directly on top of it.
- Not a completely balanced architecture; the 3.5mm & 4.4mm headphone outputs sound the same.
- Charging port may not indicate charging on anything higher than an 18W charging block, and some chargers may not work.
Comparisons (according to reviewers)
- Vs FIIO BTR-7: Sounds more refined and has more detail and resolution.
- Vs SMSL C200: The C200 sounds significantly warmer with a fuller, juicier bass line and a little bit more airy, while the G5 is more focused on clean and clear edges, tidy, well-focused—and clean.
- Vs SMSL M500 MK2: The M500 MK2 sounds overall better with dynamics at the same level as the G5 and fuller, warmer tonality—and a bigger, more spacious soundstage.
- Vs Moondrop Moonriver 2: The treble is more refined, better details up top, and a sharp edge without being overboard like the Moonriver 2 can.
Takeaway: The G5 is a well-built and versatile portable DAC/amp with a neutral, clean, and dynamic sound. It is great for those looking for an all-in-one solution that can drive almost any headphone or IEM.
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Our Summary
Product Strengths
- Fantastic build quality, aggressive contemporary design
- Includes a solid, workable leatherette case
- Delivers fun, V-shaped tuning with thumping bass, direct midrange, and bold treble
- Delivers fun, detail, dynamics, precision and a bold sound character
- Versatile, functioning as a Bluetooth receiver, a dongle DAC, and a desktop DAC amp combo
Product Considerations
- Buttons rattle a bit
- Larger than past models like the BTR5
- Mediocre battery duration
- Sharp edges
- FiiO only recommends headphones of up to 150Ω
Comparisons (according to reviewers)
- Compared to the Questyle M15, the M15 has a more balanced sound and even more textures and resolution
- Compared to the iFi Audio Go Blu, the BTR7 wins in sound staging depth
Takeaway: The BTR7 is a competent Bluetooth DAC/AMP that will handle IEMs and headphones alike and also works as a capable USB dongle. With a dedicated smartphone app for EQ and solid sound quality, it is an excellent value.
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