Je ne sais trop pourquoi mais malgré un Fiio X7 et ses modules d'amplification interchangeables j'ai la sensation qu'avec juste un DAP+casque mon système est incomplet.
Je ne sais non plus trop pourquoi (c'est stupide et irrationnel encore) j'ai flashé sur les DAC/AMP portable Teac HA-P50 et Onkyo HA-200.
Mis à part leur couleur, la seule chose qui les différencie est que l'un utilise du MUSES8920 alors que l'autre a du OPA1652.
Un autre point qui m'intrigue est que si je craque ce sera surtout pour être utilisé comme ampli.
Voici ce que j'ai lu sur HF
JE me questionne surtout sur la partie en gras, je croyais justement que c'est la seule chose que faisait tout amplificateur. J'ai raté un truc ?Well, considering that the TEAC is really good, the Onkyo should also be really good. It's difficult to predict how changing out the OPA1652 to the MUSES8920 will change the sound; both are FET input opamps, so they have similar performance characteristics (8920 looks slightly prettier on paper). Both are well-regarded opamps and are preferred units by modern designers.
TEAC actually likes using the 8920 a lot, but they tend to use it for I/V LPF conversion in their DACs. Since that step is done in the charge pump of the PCM5102A here, the only thing these opamps are doing is voltage gain, and I don't know how that will impact sound.
The designer of both units has mentioned in a press conference that the two are voiced differently, however, owing to a different sound philosophy between the two firms (TEAC and Onkyo). Interestingly, the Onkyo spec sheet quotes its analog input performance (0.003% THD+N into 32 ohms), while the TEAC quotes its digital performance (0.001% into 32 ohms). Personally, I thought the TEAC's weak link was its analog input performance (even though it supposedly uses a discrete analog stage for the amplifier portion), but I doubt most people would be using it as an amplifier. As a DAC/amp, the TEAC is absolutely excellent, especially for its price. FYI, the HA-P50B is driven to ~2.25 Vrms, while the DAC-HA200 is driven to ~2.15 Vrms, at max. power into 32 ohms.
Overall, I'd say the better buy is the TEAC (slightly cheaper, slightly more powerful, slightly better performance numbers, a pleasant, well-rounded overall sound), but the differences should be minor. I assume that if someone prefers the Onkyo signature over the TEAC's, then it wouldn't be a performance penalty to go with the Onkyo.