SMSL DO300EX MQA DAC Hoofdtelefoonversterker, AK419+ AK4499EX XU316 DSD512 PCM768kHz DAC, USB/Opt/Coax/BT5.1/IIS DAC Omvormer, RCA/XLR/4,4 mm/6,35 mm uitgang, HiFi Audio Desktop MQA-CD DAC HPAs, Zwart

Lo sto usando da due giorni e la prima impressione è positiva. L'ho collegato in ingresso con cavo ottico e con cavo coassiale mentre in uscita ho usato entrambe le possibilità RCA e XLR senza notare malfunzionamenti.Molto buona la qualità audo, tanto da percepire il miglioramento rispetto al fratellino minore DO-100pro.Menù ricco di funzioni con la rotella del volume che consente regolazioni molto precise, buono anche il telecomando.Non ho notato differenze di suono tra questo e il dac interno del Marantz CD-6007.

First off, the service from Aoshida Audio Ca. is excellent. Had a minor problem with damage during transit and they responded very quickly and offered a good resolution. The DAC has a good heavy feel and this is due to its solid all metal construction. The input/output terminals are of good quality. It has a nice sized clear, color display with a well designed menu system. There is a front panel knob that controls all menu functions and can be used as a volume control. The remote control works fine. It is the same model as from other recent SMSL DACs and seems to be universal. The sound quality is very good out of the box and it connected to a PC without a hitch and no need for any drivers to be installed. It compares favorably to the sound quality of a high end SACD player. It sounds as good but not better. This is quite good for the selling price. It does improve the quality of sound from a mid level CD player when connected to the digital outs and used as the players DAC before an amplifier.

Using this in my main stereo system being fed by a Wiim Pro plus (coaxial connection) and cd transport (optical connection). The DAC is connected via balanced xlr into a Quad pre-amplifier. The Quad has an option to bypass the tone shaping circuits for the balanced connections, which is what i selected. The Quad pre then connects to a pair of Neumann studio monitors and sub. Initially I left all the default settings on the SMSL DO300EX unchanged as I wanted to check whether the reviews of it sounding neutral were 'true'. Well it did sound flat, as I expected. The Neumanns do not add anything that isn't in the signal already so what I was hearing was the recording of the music and nothing else. There is a noticeable gain drop when using this DAC compared to using the Wiim plugged direct into the Quad. The Wiim has an AKM chipset also (AK4493SEQ) so I'm not sure if this behaviour is related to the pcm filters always being 'on'. With ESS based DACS there is usually an option to turn off the filters. That might be important to you or not, so you might want to choose your chipset carefully. I messed about with the volume pot on the SMSL and settled on -3dB in the end. You are able to 'lock' the volume pot at your chosen level in the comprehensive menu to prevent unwanted changes. Next I altered the sound colour setting and noticed very subtle changes between each setting. Like really subtle! I reverted back to the default filter '1) sharp roll-off'. The included manual provides basic information only. There is no illustration or description of how the sound profiles or pcm filters alter the sound spectrum. You will have to go online to find the graphical plots of the filters for the chipset installed in this device.Listening to a variety of music sources it is obvious that the level of detail is excellent and comparable to the Wiim Pro Plus direct as you would expect. Forget terms like "warm" or "less digital" sounding, this is a DAC. Phrases by AKM of "sound as if you were there" are marketing mumbo jumbo! Everything else in the chain has to be up to scratch too for this to be a close reality. What I did find was that listening to this DAC for several hours straight was more pleasurable than when listening through the Wiim Pro Plus direct. Even with the Wiim's EQ abilities. This DAC does a job and it does it very well. No glitches, no hair on the sound, just a conversion with all the detail present. The headphone stage is an added feature which might sway your final decision.

Hace unos tres meses que tengo este convertidor Digital/Analógico, el nuevo SMSL DO 300EX. Para quienes piensen que es una revisión del SMSL DO 300EX, no es el caso.Este nuevo Convertidor Digital/Analógico usa el convertidor tope de gama de la marca japonesa AKM, a diferencia del DO 300 que usa el IC tope de gama de la americana Sabre.Habiendo tenido ambos Convertidores instalados en el mismo equipo, me quedo con el nuevo DO 300EX.En mi opinión ambos tienen el mismo nivel de detalle, pero encuentro el sonido del DO 300EX mucho menos fatigante a altos volúmenes y sesiones largas de escucha que el DO 300. El DO 300EX tiene un sonido más agradable a los oídos, como más "analógico", y sin sacrificar detalle respecto al DO 300.A mi personalmente me encanta el sonido del DO 300EX, es un verdadero placer escuchar mi música preferida usando este Convertidor Digital/Analógico, tanto con CDs, archivos en alta resolución de hasta 192 kHz/24 bits y SACDs y archivos DSD.Si lo compras a Amazon no arriesgas nada, pruébalo con tu música preferida y si no te gusta lo devuelves, aunque si lo pruebas seguro que te lo quedas.Algún detalle que se me quedó en el tintero al escribir inicialmente esta reseña:La imagen sonora (o "imaging" como lo llaman en inglés) de este convertidor Digital/Analógico es muy amplia, ancha, con los altavoces bien posicionados. No voy a decir enorme porque podría dar a entender que está "inflada" porque se podría interpretar como que es artificial. No creo que sea así porque como ya dije inicialmente, el sonido de este DAC me parece muy natural.La función "Sound Color" no es una ecualización "al uso", no funciona así. En laas opciones Sound Color 1 y 2 el "chip" que hace el sobremuestreo funciona x128 (5.6 MHz) y usa diferentes "órdenes" de modulación Delta/Sigma. Con los Sound Color 3 y 4 el sobremuestreo funciona a x256 (11.2 MHz) y también usa diferentes "órdenes" de modulación Delta/Sigma. Esto modifica el sonido del "chip" DAC.Yo personalmente uso el Sound Color 1 para grabaciones Rock y Pop bien grabadas.Para grabaciones de grandes orquestas, como música clásica y bandas sonoras de películas orquestales uso el Sound Color 4.No me voy a extender, pero el Sound Color 1 da a grabaciones Rock y Pop la imagen sonora, pegada en graves (imprescindibles para la base rítmica de este tipo de música, batería y bajo) manteniendo una buena separación entre instrumentos y voces claras.El Sound Color 4 consigue una imagen sonora y separación entre instrumentos excelentes con grandes orquestas.Los Sound Color no enfatizan ningún rango de frecuencias, por eso digo que no son ecualizaciones preajustadas "al uso" como en IC DACs de Sabre.

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