juliush írta: ↑2018.12.27., csüt. 09:29
Most olyan kombóról van szó, amelyik praktikusan egy készülékházba építve tartalmazza a DAC-ot és egy komplett analóg előerősítőt, vagy olyanról, amely (horribile dictu) digitális tartományban végez hangerőszabályozást, választható különböző formátumú digitális bemenetekkel, esetleg ne adj'Isten emellé még nagyfelbontásban digitalizált analóg bemenettel is rendelkezik?
Van rajta analóg bemenet is. wittao belinkelte a konkrét eszközt.
Hangerőszabályzás:
Volume control:
The volume control is also different from conventional technology. Conventional volume control technology is the volume control implement in the analog amp input stage through a volume pot to reduce the signal . The volume pots quality effect the sound quality direct , the low quality volume pot cause lost the detail and channels imbalance cause the soundstage distortion . Even the high performance volume pot still cause the detail lose. Whatever quality volume pots, must cause the S/N worst .
But in the Reference 10.32 , we applied the I/V conversion volume control , the volume control just a variable passive I/V conversion place at the ACSS amp output , where the output is the current signal, not the voltage signal. The volume control is I/V conversion, and the volume depends on the current (I) conversion to the voltage (V). (Like R-2R D/A chips output passive I/V conversion) It can keep the signal frequency band flat and not lost any detail. It can't degrade on sound quality in every volume level . After the volume , there are four groups diamond non-feedback buffer output stages offer the very low output impedance .
Mark Levinson also knows that current volume control has great benefits, so in their Top End preamp NO.32 volume control, they use many components to change the signal to current signal (I), then implement the volume control , and then change back to voltage signal (V) again. But Reference 10.32 is simply a more complete work in terms of the current signal, and technically, it is superior to conventional technology. The less conversion bring much neutral sound .
The volume control quality is much important in the real balance gear . It must guarantee the four channels signal control exact to achieve the performance of the real balance gear . If the cool and hot of the balance signal can't guarantee exact, the balance output will has large distortion cause the sound quality and performance even much worst than a single end gear waste the balance gear design and the cost.
In Reference 10.32 is applied a four channels digital control relays based volume control. .Reference 10.32 has total four channels through changing the DALE resistors to control the volume for avoid channels imbalanced ,achieve the best performance and sound quality of the gear.
Reference 10.32 have 100 steps volume control, control range achieve 90DB (usually the steps volume ports, potentiometer volume port, relays base volume control all have around 70DB range ), very smooth control range on first 50 steps , cooperate with 13DB high gain, so can very easy adjust the volume for both high / low sensitivity headphone and speakers. While users change the volume, the different relays break or close, it may had slightly switch sound on output and disappear while stop change the volume.
