1795MKII AL

A minor change model that enhances compatibility with portable environments from Oriolus 1795MKII

[Oriolus 1795MKII AL]
This product is a minor change model based on the Oriolus 1795MKII, known for its calm tone like aged whiskey. It has been revised in terms of weight, output, and exterior specifications to further enhance ease of use in portable environments and harmony with IEMs.

"Fusion of industrial design and aged tuning"
The calm appearance and warm, matte metal exterior combine traditional taste with modern precision. Inheriting traditional design philosophy and combining it with modern circuit technology, we aimed for a smooth and expansive sound. Output balance is also optimized for use with IEMs. With a maximum output of 228mW, it achieves a sharp rise and a natural texture that is not fatiguing to listen to.

"PCM1795, refined to its origin"
The 1795MKII AL is equipped with the PCM1795, which has been adopted in many famous devices. The sound quality of traditional differential current output is greatly influenced by the surrounding circuit design, giving engineers a wide range of tuning options. Without compromising the familiar analog-like texture, meticulous adjustments were made over several years, focusing on the power supply layout and analog stages. While retaining the relaxed tone, rather than high resolution, and the slightly warm mid-range that has been praised since the first Oriolus 1795, it combines well-defined contours and a quietly sinking background, aiming for a natural density that is easy on the ears. It clearly portrays any music without leaning too much towards a particular texture.

"AK4137EQ upsamples Bluetooth input"
The built-in AK4137EQ is a sample rate converter that operates based on an internal oscillator, adopting an independent clock configuration that suppresses timing fluctuations during resampling. It upsamples audio signals input via Bluetooth to PCM 24bit/192kHz through a high-precision filter, while simultaneously reducing clock-derived noise components, including jitter. In the 1795MKII AL, the signal transmission path around the AK4137EQ is designed to be as short as possible to suppress the effects of external noise. This achieves a sound with clear, extended highs without turbidity at the edges of the band, and a quiet background. The sound image rises smoothly, and the reverberation naturally fades, aiming for a resolution and detail expression that is not fatiguing even during long listening sessions.

"XMOS XU316 USB Receiver"
The XMOS XU316 is adopted to provide stable connection with PCs and smartphones. Its multi-core configuration enables high-speed processing, contributing to stable transmission of high-resolution audio sources with large amounts of information. Independent regulators are placed in the digital processing section to suppress voltage fluctuations caused by load changes in the USB section, stabilizing the timing processing within the XMOS. Designed with jitter suppression in mind, the power system is equipped with the CG5125. By reducing power supply noise in the digital processing system, it maintains signal purity and supports a silent background and detailed reproducibility.

"Adoption of QCC5125 for powerful stability"
Qualcomm QCC5125 is a multi-core Bluetooth audio SoC combining a dual-core CPU and dual-core Kalimba DSP. It stabilizes signal processing during wireless transmission and contributes to low-latency and smooth sound rise. By improving the accuracy of internal clock management, it suppresses processing disturbances and the effects of unnecessary noise, achieving reproduction where the soundstage and the quietness of the background are easily felt. In addition to major codecs such as aptX, aptX HD, aptX LL, AAC, and SBC, it is designed to widely support other codecs for high-quality audio playback, and with the adoption of a large antenna, it ensures a stable connection of approximately 10m in an unobstructed environment.

"Precise yet enticing design for portability"
The bright, hard-textured aluminum body is combined with a translucent glass panel that subtly reveals the internal structure. The integrally molded glass panel is smoothly rounded to the edges, enhancing the natural feel in hand and the neat, integrated feel as a precision instrument. The metal parts are given a matte, warm texture with a hairline finish to make them familiar, aiming for a presence that makes you want to take it out with you every day.

"Sound that blends into every aspect of daily life"
Sound engineering that caters to various situations, from commuting and work to relaxing at night. The bass is tight and deep without relying on quantity. The mid-range has a gentle density that is not harsh on the ears, and the treble has an extended reach that is smooth without losing information. It is a straightforward tuning that feels natural even to first-time users and can be enjoyed for a long time.

"Designed for 8 hours of continuous playback"
Achieves a balance between power saving and output performance, ensuring stamina with an emphasis on portability. Specifications that allow you to concentrate on music even outdoors.

"Exterior frame combining lightness and precision"
To enhance ease of use in portable environments, the exterior frame is made of aluminum, which has excellent thermal conductivity. By reducing excessive weight and efficiently dissipating heat from inside the casing, it achieves both portability and stability as a precision instrument.

※Some images use 1795MKⅡ.

■ USB Audio Specifications
PCM: 16–32bit / 44.1–768kHz
DSD: DoP / Native, DSD64–256
DXD: 24–32bit / 384kHz

■ Bluetooth Audio Specifications
•Bluetooth Version: 5.2
•Supported Sampling Rate: 16–32bit / 44.1–96kHz
•Supported Codecs: SBC, AAC, aptX, aptX LL, aptX HD

■ Headphone Output
•Output Terminals: 3.5mm (unbalanced), 4.4mm (balanced)
•Output
・3.5mm: 165mW (1kHz / 32Ω)
・4.4mm: 228mW (1kHz / 32Ω)
•S/N Ratio (A-weighted)
・3.5mm: 110dB
・4.4mm: 115dB
•THD+N
・3.5mm: 0.001%
・4.4mm: 0.009%
■ Recommended Load Impedance
•16–600Ω
■ Continuous Use Time
•Approximately 8 hours
■ Power Supply
•USB-C Charging (5V / 2A)
■ External Dimensions and Weight
•Size: 98mm × 53mm × 18mm
•Weight: 130g