KK Ans:
1) I think that I shall plan to attain some training courses (e.g. UcD power amp, AN-M7 tube preamp, DAC, etc…) organized by HiFi Fever in according to my budget allocation and time available. With electronic background, I think I can handle harder HiFi DIY jobs in your training workshop though I am not an experienced HiFi DIY fever. Do both of your DIY AN-M7 preamp and UcD400 power amp provide true balanced input/output in order to achieve my goal of “full balanced silver interconnect cables from CD transport to amplifier”?
For the price VS perfomance, I choose AN-M7. But sure you can choice other as you like, we can provide the material and training.
PS : If you need full utlized the UCD balance in, you need balance out preamp. pay attention on preamp, adding a balance driver like DRV136 is not = balance out.
2) In the training course of tube preamp, some models such as AudioNote M7, ARC LS-7, ARC SP-10, Conrad Johnson PV-3, Marantz 7, GG, 禾田茂氏, etc.. are introduced. You selected AN-M7 for me. Why? Is AN-M7 is the best suit to my goal of sweet, warm and thick sound quality with listening to vocal, country or Jazz music?
Same as ANS 1.
3) For new modules of UcD400 HG or HGHXR, rather than old version of UcD400 AD, which one shall I select? What criteria to guide this selection decision?
What is your budget regarding to UCD power amp?
4) For my Lite DAC-AM with true balanced input/output, you said that TDA1543 was not for HiFi use. I am quite in doubt , but not challenge you because the Lite DAC-AM DAC chip AD1853 is also used in hi-end Accuphase CD player with cost around $20K~30K. In fact, used this Accuphase CD player to tune for modification. As result, the sound quality is similar or even slightly better than this Accuphase CD player. But, I shall accept to upgrade to a higher graded DIY DAC if available in your workshop, but set to lower priority. No money!
Sorry, I don't know AM model is AD1853.
You can use AD1855 to upgrade AD1853. Or adding a sampling rate converter inside the box (not outside). Hififever can provide this.
And upgrade it by another DIR IC.
5) For CD transport, I shall set it into the lowest priority to upgrade to DIY Philips CDPRO2 if you said that the improvement would not be much significant in comparing to my current Philips DVD player. But, my concern is that the DVD player has no balance output. Hence, I still need a CD transport with balance output to achieve my goal of full balance interconnect eventually. In fact, a cheap DIY CDROM with balance output is also OK to me if the sound quality is similar to DVD player or Philips CDPRO2.
the balance output is depend on the DAC, not the loader, also if you talking about AES link (balance digital output), this is anoher story.
6) You mentioned a statement that “CD Transport --> DAC --> Preamp --> Electronic crossover --> 2 X power amp --> High driver and Low driver.” Do you mean a Bi-Amp connection, for example with UcD400 power amp to higher driver of speaker and Denon AV amp to lower driver of speaker? Please elaborate more in detail or refer a website which you did early March. If yes, let me to handle the critical issues first.
It is not a bi-amp, it is a electronic crossover. Traditional crossover is at speaker box inside. For ele crossover which remove the loss in the driver since the speaker box don't equip with any RLC.
KK.HO |
[複製鏈接]
