review33.com:影音天地:陳年解碼器一問

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[#1] 陳年解碼器一問見網上有師兄BID左部WADIA X64 部機好似都有十幾年歷史了請問呢的機入邊的電子零件仲可以用幾耐?		FRAPPECCINO 正式會員 122.xxx.xxx.41	2011-04-11 02:13

[#2] 陳年解碼器一問
呢樣真, 我整過 Wadia D 機, 佢用 Motorola Micro-computer 做 software Dac, 塊線路板好多好多密麻麻Logic IC. 壞左的話, 睇怕原廠先有人識整!! 做修理的, 點會有深入的數碼知識, frank!!

254mm

正式會員
219.xxx.xxx.55

2011-04-11 06:24

[#3] 陳年解碼器一問
部 WADIA X64 有乜咁特別?

vt75

正式會員
75.xxx.xxx.247

2011-04-11 10:14

[#4] 陳年解碼器一問
呢類古董同計時炸彈基本上冇分別, 以下係一位苦主嘅惨痛經歷, 買咗部 Mark 仔 36s, 一年就玩完:

http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1274187991

05-19-10: Steam3642
Hi Hellofidelity
Thanks for the confirmation on reliability of the No36s dac , I bought a Audio Synthesis dax last year as you may see from another of my posts , unfortunately it developed a fault with the ultra-analog chip and upon returning it to the dealer it was confirmed it was non-repairable , got full refund so no problems . Shame because it was a lovely sounding unit! , although i was a bit unsure of the build quality as the buttons on the front panel were not very solidly fixed and very light to touch , first rate sound though and i miss it! i hope the Levinson No36s would be up to the audio Synthesis in the sonic department if so i would be a happy camper

粒 DAC chip 一有事成部機就報廢!!!

最後修改時間: 2011-04-11 11:50:46

路易斯

正式會員
203.xxx.xxx.227

2011-04-11 11:49

[#5] 陳年解碼器一問
有事無人識攪無零件無線路圖無數據死硬

空中飛人

正式會員
61.xxx.xxx.242

2011-04-11 12:14

[#6] 陳年解碼器一問
以 Mark 仔為例, 九十年代嘅 DAC 供應商 ultra analog 摺埋九世, 舊型號有乜頭暈身熱, 就算 Mark 哥本人都冇符!!!

路易斯

正式會員
203.xxx.xxx.227

2011-04-11 12:33

[#7] 陳年解碼器一問
at such time..those Audio Synthesis dax , PS Audio ultralink..was dame nice.

hahayanyan

正式會員
202.xxx.xxx.53

2011-04-11 14:23

[#8] 陳年解碼器一問
當年之 Wadia 數碼味非常重，唔明仲 bid來做乜。

gingergarlac

正式會員
183.xxx.xxx.107

2011-04-11 20:42

[#9] 陳年解碼器一問
當年之 Wadia 數碼味非常重
----------------------

同宜家差不多

vt75

正式會員
75.xxx.xxx.247

2011-04-11 20:52

[#10] 陳年解碼器一問
G Hing,
您咁hurt我:-(
禾都係用緊Wadia解碼喎！

cowboychan

正式會員
222.xxx.xxx.27

2011-04-11 21:28

[#11] 陳年解碼器一問
驚都未驚過, 就算粒UltraAnalog 20400死都唔怕....:-)
千祈迷睇小D修理師傅....X64是好東西, 碰到合理價都要考慮入番部

yukclee

正式會員
219.xxx.xxx.138

2011-04-11 22:33

[#12] 陳年解碼器一問
＞＞ Wadia 數碼味非常重

這是真的

還有粒DAC 己很out了
BB1704都是舊，還好可解 24/96

gingergarlac

正式會員
183.xxx.xxx.107

2011-04-11 22:43

[#13] 陳年解碼器一問
No, BB1704 is not out. It is one of the best DAC in the market now.

Many high end gears are still using it. Naim DAC or Primare CD31 are still using it. An Esoteric DAC costing over $100,000 are using 8 pcs of BB1704.

Do not overlook it.

avdirect

正式會員
218.xxx.xxx.38

2011-04-12 04:31

[#14] 陳年解碼器一問
He said {BB1704都是舊，還好可解 24/96}
He did not said 1704 is out!!

T72BM

正式會員
203.xxx.xxx.153

2011-04-12 05:17

[#15] 陳年解碼器一問
近日在R33看到有車佬Dac(1996年製品)及高錳Dac(約1990產品)出讓，叫價兩皮多或一皮多，昔日是王者戰神，在台灣甚為受落，但數碼科技一日千里，今時極可能敗於數千元的新秀。

sowk

正式會員
119.xxx.xxx.168

2011-05-10 18:55

[#16] 陳年解碼器一問
＞昔日的皇者，敗於今天幾千蚊的新秀...

是真的嗎？

OPP9546

正式會員
123.xxx.xxx.78

2011-05-11 00:56

[#17] 陳年解碼器一問
""是真的嗎？""

不是。

thomasc2

正式會員
61.xxx.xxx.176

2011-05-11 10:24

[#18] 陳年解碼器一問
can the old museum items handle native hi rez files?

can a pentium 3 handle win7?

cpu8088

正式會員
115.xxx.xxx.214

2011-05-11 10:27

[#19] 陳年解碼器一問
賣電腦，鬥科技；

賣hifi，鬥校聲多於鬥科技。

不能類比。

AlexKY

正式會員
203.xxx.xxx.175

2011-05-11 12:23

[#20] 陳年解碼器一問
dac processing is similar to computer processor.

just look at video scaler. isnt a newer one better than those old ones in handling higher resolution?

old dac cannot handle 24 bit depth.

from soundstage magazine:

"In a 16-bit system -- the CD standard -- there are 65,536 possible discrete values. That means that the value between any two recordable voltages for our +/-2V example is about 0.00006V, or 60µV. Consequently, the maximum error in the signal is only 30µV, which seems pretty small -- except when you consider that the maximum resolving power of a good analog circuit is at least an order of magnitude better than that.

Fortunately, analog-to-digital converters with bit depths of 20 and 24 are quite common.

The ratio between the largest and smallest values recordable by a system is that system's dynamic range. Typically, dynamic range is expressed in decibels (dB), which represent this multiplicative difference logarithmically. There is a precise equation to convert from bit depth to dynamic range in dB, but the more useful rule of thumb is 6dB per bit. Applying that rule, a 16-bit system has a dynamic range of 96dB, and a 24-bit system has a dynamic range of 144dB. In the real world, electrical noise prevents A/D converters from achieving full 24-bit resolution. The best specification for dynamic range that I've seen on an ADC is 127dB, which is slightly better than 21-bit resolution. Other factors can drive that number even lower."

cpu8088

正式會員
115.xxx.xxx.214

2011-05-11 12:46