The Lotoo Mjölnir is a limited-edition, high-end all-in-one portable and desktop audio system that combines the advantages of a flagship music player, DAC, headphone amplifier, and preamplifier. It is designed for music enthusiasts who want reference-quality sound at home, in the office, or while traveling—without compromises or separate components. Its solid metal chassis, enormous power output, and battery-powered design provide a unique solution for those seeking desktop-class audio with portable flexibility.

At the heart of the Mjölnir is the AKM4499EQ DAC chip and eight LME49600 headphone op-amps, delivering extremely low distortion, an immense dynamic range, and a crystal-clear, noise-free background. The sound signature is neutral and close to reference: precise, highly detailed mids, controlled and powerful bass, and extended yet natural highs, faithfully conveying the true tones of the recording. This character makes the Mjölnir ideal for audiophiles, studio work, and users who want to clearly hear the differences between cables, headphones, and recordings.

One of its key strengths is versatile connectivity: on the front panel you’ll find 3.5 mm and 6.35 mm headphone jacks, along with 4.4 mm Pentaconn and 4-pin XLR balanced headphone outputs capable of delivering up to 2.5 W of power at 32 ohms. This is sufficient to confidently drive even demanding high-impedance or low-sensitivity headphones. On the rear panel there are analog RCA and XLR line outputs, allowing the Mjölnir to integrate easily into an existing hi-fi system or alongside active studio monitors, functioning as both a preamp and a DAC.

High-end, all-in-one portable and desktop audio player

AKM4499EQ DAC
8 × LME49600 heafphone-opamp

PCM up to 768 kHz
DSD up to 512

The digital side is just as powerful: the device works as a USB DAC when connected to a computer or mobile device, and it also offers AES/EBU, coaxial, and optical outputs. This means it can even be used as a digital transport for an external DAC while also serving as a standalone internal player. The built-in Bluetooth module supports SBC, AAC, and LDAC codecs, while DLNA-compatible networking allows music streaming from a local network—effectively combining a classic file player with a modern network streamer.

In terms of format support, the Mjölnir handles virtually everything: in addition to DSD64/128/256/512 (DFF, DSF, ISO), it supports WAV, FLAC, APE, OGG, MP3, M4A, and AAC files, with PCM sampling rates up to 768 kHz. The advanced conversion system enables real-time PCM-to-DSD conversion and upsampling, allowing users to freely experiment with the sound character they prefer. The high-speed UHS-II SD slot supports cards up to 2 TB, making it easy to carry an entire music library with you.

Two displays ensure convenient operation: a 4-inch 800×480 touchscreen on the top, and a 2.2-inch 480×360 LCD on the front panel, making all information easy to read whether the device is used on a desk or in “desktop DAP” mode. The proprietary LTOS operating system is specifically optimized for music playback—fast, stable, and free of unnecessary background processes. The logical menu structure, precision rotary knob, and solid switches together provide a professional feel, further enhanced by the meticulously crafted full-metal chassis.

Power is supplied by a 10.8 V, 9000 mAh (97.2 Wh) lithium-ion battery, which offers surprisingly long operating time considering the device’s performance level. The unit can also be used continuously from mains power, but when running on battery, electrical noise from the power grid can be completely eliminated—an important factor for users sensitive to power quality. The USB-C PD charging port, separate USB-C data port, and standard USB-A connector allow the Mjölnir to be charged while simultaneously connecting external storage devices.

The Lotoo Mjölnir is a special choice for those seeking a single, uncompromising central unit to serve both headphone and speaker systems. Whether for home listening, office use, or even a “traveling” high-end setup at a vacation house, the Mjölnir delivers the same precise, audiophile sound everywhere. Thanks to its limited availability and premium build quality, it is not only a technical device but also a long-term investment in the world of high-quality music listening.

Formats

DSD64/128/256/512 DFF, DSF, ISO, ALAC, WAV, FLAC, APE, OGG, MP3, M4A, AAC

Sample Rate

Up to DSD512
Up to PCM 768kHz

Processor

NXP iMXN6LL
ADI Blackfin BF706 DSP
Ingenic X1000

Main Product

Lotoo Mjölnir

Accessories

Genuine leather carrying case (with adjustable strap)
High-end USB-C cable

Extra

Quick-start manual