Luxman DA-250

El DA-250 es un convertidor de audio digital USB que se basa en el exitoso diseño del popular DA-200 con la adición de funciones actualizadas y tendencias técnicas integradas en el cuerpo de tamaño compacto. a 192 kHz / 32 bits PCM y 5,64 MHz DSD, cuenta con una sección de amplificador de auriculares con una fuerza de accionamiento significativamente mejorada, incluye el atenuador computarizado LUXMAN ‘LECUA’ * y tiene la adición de una elegante unidad de control remoto. Estas especificaciones permiten crear un entorno de audio de alta calidad con una versatilidad avanzada. El DA-250 está diseñado para ser el núcleo de un sistema de audio de escritorio actualizado y para utilizar la última tecnología para lograr un rico entorno de reproducción de música.
* LECUA es una abreviatura de Luxman Electric Controlled Ultimate Attenuator.
* El reproductor de audio LUXMAN (correspondiente a Windows 10 ／ Mac OS X v10 / 11) y el software del controlador para Windows se pueden descargar desde la página de inicio de LUXMAN.
* Windows es una marca comercial registrada o una marca comercial de Microsoft Corporation en los Estados Unidos y / o en otros países.
* Mac es una marca comercial registrada o una marca comercial de Apple Inc. en EE. UU. Y otros países.
* DSD es una marca registrada.
* Los nombres de empresas y productos descritos son marcas comerciales o marcas comerciales registradas de cada empresa.
* Las especificaciones y la apariencia están sujetas a cambios sin previo aviso
* El producto listado en este catálogo no incluye cables de línea. Adquiera los cables por separado.

Digital Circuit
For the DAC chip, a 32-bit compatible PCM1795(manufactured by Texas Instruments Incorporated) adopted is internally up-convertible to 352.8k/384kHz/32-bit.The USB input is compatible up to 192kHz/32-bit PCM data and DSD data (2.82M, 5.64MHz) whilst the S/PDIF input supports up to 192kHz/24-bit PCM signals. A variety of digital inputs (a coaxial input and 2 optical inputs) are provided as well as the USB input to connect to the digital output of a CD player and other peripheral AV devices. A selectable 32-bit digital filter for PCM and a selectable analog FIR filter for DSD allow the tone to be adjusted to taste. Low phase noise clock modules with high precision and low jitter are fitted independently on both the 44.1k and 48kHz channels to reduce noise. A remarkably reduced jitter for the USB input is achieved by asynchronous communication for the S/PDIF using an embedded DAIR high precision clock.

Analog circuit
The structure of the DAC + pre-amp + headphone amp inherited from the DA-200 has been greatly improved both in terms of the sound quality and functionality. 6 integrated circuited LECUAs are arranged independently in both the headphone and line outputs in order to completely eliminate level deviation at low sound volumes. For both the balanced and unbalanced line outputs, the output signal can be selected between FIX and VARIABLE. When VARIABLE is selected, the system can be connected directly to a power amplifier or active speakers. The drive force of the headphone output has been significantly improved with the addition of a discrete buffer circuit. A sensitivity selector has also been added. All line outputs feature an independent buffer circuit to prevent changes in sound quality when the outputs are used simultaneously. In addition, 1 line of analog input is available. A high-inertia power supply system consists of a large-capacity transformer, an independent regulator for each circuit and large-capacity block condensers.

Additional features
A highly visible 2-stage, 7-segment LED with a dimmer function is mounted on the stylish front panel with a blaster white finish. The DA-250 also features an output phase selection switch that is useful for connecting with other companies’ balanced devices. A compact, card style remote control is provided enabling full control from the listening position. Gold plated 18mm pitch RCA jacks and high grade XLR terminals manufactured by Neutrik® are mounted on the rear panel to allow high-quality, high performance cables to be used. The original LUXMAN high sound quality playback software ‘LUXMAN Audio Player’ is also available, supporting a wide variety of formats such as DSF and FLAC whilst offering a simple operation solution.

Spec
Format 2-channel D/A converter
Supported sampling frequencies USB input (PCM) : 32k, 44.1k, 48k, 88.2k
96k, 176.4k, 192k(16, 24, 32bits)
USB input (DSD) : 2.82M, 5.64MHz (1bit)
COAX/OPT input : 32k, 44.1k, 48k, 88.2k
96k, 176.4k, 192kHz (16, 20, 24bits)
MC HIGH: 0.37mV, MC LOW: 0.12mV
Digital input USB x 1, COAX x 1, OPT x 2
Digital output COAX x 1, OPT x 1
Analog input Unbalance x 1
Analog output Unbalance x 1, Balance x 1, Headphone x 1
Line output voltage/imipedance Unbalance : 2.5V/300Ω, Balance : 2.5V/600Ω
Headphone output 130mW + 130mW(600Ω)
400mW + 400mW(32Ω), 200mW + 200mW(16Ω)
Frequency response 2Hz to 50kHz (+0, -3.0dB)
Total harmonic distortion 0.001%
S/N ratio (IHF-A) 118dB
Power supply 230V~(50Hz) / 115V~(60Hz)
Power consumption 20W
Dimensions 364(W) x 81(H) x 279(D) mm
front side knob of 14mm and rear side terminal
of 8mm included in depth
Net weight 5.4kg(main unit)
Accessories Remote control (RD-24) Power cable