The KA15 overturns the aesthetic norms of portable DACs with its 0.96” IPS LCD screen, which displays a moving audio cassette during playback. This nostalgic approach, inspired by the iconic Sony Walkman, transforms a simple converter into an object of technical curiosity. The screen also shows real-time audio parameters, voltage, and current, offering unprecedented visual control of performance.
The FiiO KA15 marks a distinctive milestone in the evolution of portable audio converters. Combining powerful technical performance with visual innovation, this DAC/amplifier introduces the first color LCD screen in its category, while maintaining an affordable price around €100. The dual Cirrus Logic CS43198 architecture combined with the THX AAA-78 amplifier delivers 560mW power per channel, sufficient to effectively drive a wide range of headphones and in-ear monitors.
Revolutionary design and user interface
The KA15 overturns the aesthetic norms of portable DACs with its 0.96” IPS LCD screen, which displays a moving audio cassette during playback. This nostalgic approach, inspired by the iconic Sony Walkman, transforms a simple converter into an object of technical curiosity. The screen also shows real-time audio parameters, voltage, and current, offering unprecedented visual control of performance.
The construction is based on a CNC-machined aluminum chassis, anodized and polished, providing premium durability despite the low weight of 21 grams. The three physical buttons adopt retro visual elements, allowing direct access to settings without the need for a mobile app. This standalone approach differentiates the KA15 from many competitors that rely on smartphones for adjustment.
Sound performance and technical architecture
The dual DAC architecture Cirrus Logic CS43198 combined with SG Micro SGM8262 amplifiers offers impressive measured performance. On the balanced 4.4mm output, the device reaches a signal-to-noise ratio of 113dB with harmonic distortion of 0.0004%, while the unbalanced 3.5mm output shows 122dB SNR and 0.00045% THD [according to the provided specifications].
The sound signature is characterized by a slight warmth that avoids digital coldness, while maintaining detail and extension in the treble. This subtle timbre makes listening more pleasant during long sessions, especially with recordings that are overly bright or aggressive. The stereo stage offers good width with precise instrument placement.
The desktop mode delivers up to 560mW per channel at 32Ω, exceeding the needs of most in-ear headphones and sufficient for headphones with moderate driving difficulty. This power is accompanied by exceptionally low background noise, with no audible hiss even at high volume.
Flexibility and extensive connectivity
The KA15 stands out for its versatility thanks to the selectable Class AB and H modes. The H mode prioritizes energy efficiency for portable use, while the AB mode maximizes performance for desktop use. This duality allows adaptation according to the listening environment.
The USB-C connection ensures extensive compatibility with Android smartphones, iPhones (adapter required), computers, and PlayStation 5 or Nintendo Switch gaming consoles. The 3.5mm output also supports USB to SPDIF bridge mode, allowing connection to external DACs or hi-fi systems.
Smart power management automatically detects audio activity and adjusts consumption accordingly. When paused, consumption is reduced by 80% compared to the previous KA5, and by 93% in standby. This optimization preserves the smartphone battery during extended listening sessions.
Software ecosystem and customization
The FiiO Control app offers full control via Android smartphone, complemented by a web interface accessible from any browser. This multi-platform approach ensures access to settings regardless of the source.
The 10-band parametric equalizer allows detailed adjustments of the sound signature. Unlike basic EQs, this implementation enables precise control of the center frequency, bandwidth, and gain, offering audiophile correction flexibility. The settings are stored in the KA15's internal memory, independent of the source device.
The selectable digital filters and volume functions (60 or 120 steps) adapt to listening preferences. The right/left balance, screen brightness, and time delays are also adjusted according to needs.
Premium construction and finishing
The CNC-machined aluminum chassis demonstrates a quality approach rarely seen in this price category. The anodizing and polishing provide a durable finish that resists scratches and everyday wear. The shades midnight black and sky blue offer distinctive aesthetic options.
The integration of a strap loop shows attention to portable use, although the accessory is not included. This omission, along with the absence of a USB-C to Lightning cable for iPhone, are the only reservations regarding the accessories.
The LCD screen, although impressive, introduces a potential point of vulnerability in repeated handling. However, its protection by the metal chassis limits the risk of accidental breakage.
Technical characteristics
Design and Interface
- Body made of CNC machined metal, anodized and polished
- 0.96-inch color LCD screen with retro interface (magnetic tape simulation)
- Customizable physical controls (2 A / B functions)
- Built-in loop for strap
Audio Components
- Dual CS43198 digital-to-analog converter
- Dual SGM8262 operational amplifier
- Support for pulse-code modulation up to 32 bit / 768 kHz and direct stream digital 256
- Audio processing via audiophile digital signal processor with 10-band parametric equalizer
Audio Performance
Balanced Output (4.4 mm)
- Power: 560 mW at 32 Ω
- Frequency response: 20 Hz - 50 kHz (± 0.1 dB)
- Signal-to-noise ratio: 113 dB
- Total harmonic distortion: 0.0004 %
Unbalanced Output (3.5 mm)
- Power: 290 mW at 16 Ω
- Frequency response: 20 Hz - 50 kHz (± 0.1 dB)
- Signal-to-noise ratio: 122 dB
- Total harmonic distortion: 0.00045 %
Connectivity
- USB-C port (detachable cable)
- 3.5 mm mini-jack headphone output (compatible with microphone / coaxial SPDIF output)
- 4.4 mm balanced headphone output
- USB audio class 1.0 mode compatible with Switch, PS5, etc.
Control and Management
- Control via FIIO Control app (Android) or web interface
- Smart power management with activity detection and automatic standby
Accessories and General Information
- Included accessories: USB-C to USB-C cable
- Dimensions (L × W × H): 52 × 11 × 25 mm
- Weight: 21 g