- #81 [addyg], 19-11-12 16:13
- #82 [patkwok], 19-11-12 16:24得罪R33管理團隊都要講句
R33無講過、討論過既機種就好打有限?
眼光會唔會窄左D呀?
對唔住呀R33管理團隊!我知你地好努力維持呢個討論區,我好支持你地架。
同埋HiFi界都公認有皇冠的1541質素係好過無皇冠架喎
雖然我無玩過聽過1541
大把機用1541皇冠
http://vasiltech.narod.ru/CD-Player-DAC-Transport.htm
最後修改時間: 2019-11-12 16:35:23 - #83 [addyg], 19-11-12 17:58#82
講唔過人就想報警。你哋都幾得意。要不要call你老豆投訴呀。 -
- #84 [Patkwok], 19-11-12 18:11報警?
你都幾攪笑。
用心睇下大家寫咩啦。
做人唔好迷迷糊糊。
人地講野唔啱你聽就爆粗,咁唔係討論呀。
唔好只係活係自己個世界先至得架。
最後修改時間: 2019-11-12 18:15:33 - #85 [addyg], 19-11-15 20:03#84
你搵到部Sony R1同三皇冠未呀。
唔吹唔曬你係咪xx - #86 [patkwok], 19-11-16 08:27http://www.dutchaudioclassics.nl/Philips-TDA1541.asp
一個有趣的1541網頁,要睇曬都相信要用幾多時間。當中一段提到
The evolution of DAC & the digital filter
Multi-bit DACs
Philips TDA1540 | Top
The evolution in the use of digital filters and DACs, which greatly influence the sound quality of Super Audio CD/CD players, is also a fascinating topic. In the Red Book, which defines CD standards, the resolution is quoted as being 16 bit.
However, the first DAC used in the first Marantz CD player, the Marantz CD-63, and the Philips LHH-2000, was the 14-bit resolution Philips TDA1540. Since Japanese CD players all employ 16-bit resolution DACs, the Marantz/Philips specification would seem inferior, but according to data taken from actual performance situations and among audiophiles with a good ear for sound quality, the performance of the TDA1540 CD player with its 14-bit DAC is rated outstandingly high.
In actual fact, the secret to the excellent sound produced by the Philips SAA7030 digital filter incorporated into the TDA1540 is not obvious at first. The SAA7030 with a 4x over sampling filter capacity utilizes a top quality noise shaping circuit called a secondary noise shaper. When the Marantz CD-63 went on the market, the effect of noise shaping (imposing frequency characteristics onto distribution of quantized noise in order to shift noise component to an ultra-high ranges that are difficult to hear with the naked ear) was lagerly unknown. The combination of the SAA7030 and TDA1540 used noise shaping to achieve a resolution equivalent to 16-bit.
That's not all. Analog filters built into the analog output circuits after the DACs were set for smooth 3rd order slopes with particular attention given to regularity of the phase characteristics.
At the time, the filter characteristics of Japanese products were set as high as the 9th or 11th order, and the superb sound quality of the Marantz products was overwhelming. The sound quality of the Marantz CD-34 was given high praise as being nearly equal to that of the ultra high-end Philips LHH-2000.
Philips TDA1541 | Top
The next DAC developed after the TDA1540 was the 16-bit resolution multi-bit DAC TDA1541, well known among audiophiles. As with the TDA1540, the TDA1541 series are multi-bit DACs employing a DEM (dynamic ekement matching) circuit.
To put it simply, DEM is a superior system developed by Philips technicians that employes 4 to 5 current sources inside the DAC applied in turn to achieve a 1/4 to 1/5 reduction in DAC conversion errors. At first, the TDA1541 was used in combination with the Philips-made SAA7220P/A 4x over sampling digital filter (a noise shaper circuit was not required and was not used).
Philips TDA1541A | Top
The SAA7220P/A digital filters and TDA1541 were slightly improved and re-released as the SAA7220P/B and TDA1541A. These new digital filters conformed to the 28kHz DAT sampling rate, and plans were implemented to improve the precision of DACs. These were incorporated into the Marantz CD-94 after its initial release and also used in the Marantz CD94ltd and Marantz CDA-94.
Philips TDA1541A S1 | Top
While the value of Philips multi-bit DACs increased day-by-day, Marantz technicians were trying to achieve an even better sound quality. At about the same time, Philips, who was manufacturing the devices, proposed a special "select" version of the TDA1541A that had a particularly high rate of conversion precision. (Makers often release these kinds of special "select" devices.) Thus, the ultimate 16-bit resolution mutli-bit DAC, the TDA1541A S1, with a carved crown, was born and installed in the Marantz CD-80, Marantz CD-95, Marantz CD-99SE and the Philips LHH-1000. Naturally, the digital filter used in was the SAA7220P/B, which had already gained quite a reputation.
From the audiophile point of view, the TDA1541A S1 was a unique experiment that tested the performance limits of current device technology.
Philips TDA1541A S2 | Top
The "select" version TDA1541A S1 progressed to become the TDA1541A S2, with an even stricter selective standard and a so-called double crown mark. In fact, previous "select" product levels were ealisy exceeded through improvements in the manufacturing process and manufacturing precision of the device. The TDA1541A S2 was installed in the Marantz CD-95Ltd together with the SAA7220P/B. Later, Marantz successfully employed the TDA1541A S2 16-bit D/A converter as a finishing touch in the Marantz Project D-1.
Production of the SAA7220P/B digital filter had stopped long before this, so Marantz technicians programmed an 8x over sampling digital filter circuit for use as a high speed DSP.
The legendary 16-bit CD player Marantz CD-7, which is still highly praised, was the last Marantz CD player to feature the TDA1541A S2. Since actual production of the TDA1541A S2 has stopped long before, the number of players that could be produced using this device was limited from the start. Marantz used their precious stock of TDA1541A S2 to design digital filter circuits with high-speed DSPs in the same way as the Marantz Project D-1. The Marantz CD-7 however used 4x over sampling equivalent to the SAA7220P/B and a primary noise shaping circuit modeled on the secondary noise shaping circuitry in the digital filter SAA7030 (used with the first 14-bit DAC TDA1540) but fitted with an on/off function.
Actually, since the phase characteristic could also be calculated, the digital filter was used to calculate the pass-through characteristics of the analog low-pass filter and its phase correction. In other words, the unit was engineered on the premise that the signal output from the CD player would be completely linear and receive no phase correction. In addition, a variety of other technologies have been used during the process of converting the digital signal back to analog. This concludes the history of the Philips multi-bit digital audio DACs.
1-bit DACs | Top
The 1-bit DAC, also referred to as the Bitstream DAC, is based on a completely different concept to that of the multi-bit DACs. Multi-bit DAC rely heavliy on LSI manufacturing precision, Bitstream DACs by and large are not infuenced by such factors, and are characterized by the simplicity of the circuit itsef. Although the linearity of 16-bit DACs is impeccable, production costs are a big drawback. Thus, the current worldwide trend towards cost reduction supports the development of Bitstream DAC.
Philips SAA7320 & Philips SAA7321 | Top
Philips developed their first Bitstream DAC, the SAA7320, with a digital filter circuit. This however was not utilized in any Marantz CD players. Their next Bitstream DAC, the SAA7321, featured 4x over sampling and secondary noise shape digital filter circuitry. This was used in the Philips LHH-300 and Philips LHH-500.
Marantz began seriously employing Bitstream DACs from the SAA7350, which incorporated a secondary noise shalping circuit. This DAC was used in conjuction with the newly developed custom made Philips 18-bit output and 8x over sampling digital filter SM5840FP in the Marantz CD-42, Marantz CD-52, Marantz CD-72 and Marantz CD-72a.
Philips DAC7 TDA1547 | Top
Advancementin Bitstream DAC technology kept pace with advancements in peripheral devices. The SM5803APT, an 8x over sampling digital filter capable of 20-bit output, and the newly developed "DAC 7" switched capacitor type Bitstream DAC TDA1547, were used in the Marantz CD-15, Marantz C-16, Marantz CD-16SE, Marantz CD-23, Marantz CD-17, Marantz CD-17D and the Philips LHH-700. A secondary noise shaping circuit, the SAA7350, was positioned between the digital filter and the DAC 7. This added the solid feeling of depth found in the multi-bit DACs to the highly praised smoothness and spaciousness of the Bitstream DAC, making it even more desirable.
Philips DF7 TDA1307 | Top
The last lot of Marantz Bitstream system CD players used newly developed Philips TDA1307 digital filter that incorporated 8x over sampling and secondary noise shaping circuits (the so-called "DF7") together with the DAC7 (TDA1547), like the Marantz CD-14 and Marantz CD-16D.
Even in the Super Audio CD era, this combination of the TDA1307 and TDA1547 displays real audio quality. This combination was employed in the first Marantz Super Audio CD/CD player, the SA-1. However, the SA-1 uses four TDA1547 circuits per channel, each of which performs a single clock data shift in order to move quantized noised components beyond audible frequencies. In addition, the TDA1307 digital filters are only used for CD playback.
During Super Audio CD playback the 2.8MHz 1-bit delta sigma modulated DSD data is sent directly to the DAC 7.
Cirrus Logic CS4397 | Top
Currently, the Cirrus Logic (Crystal Semiconductor) super DAC known as the CS4397 is the main DAC used in new Marantz Super Audio CD/CD players. The CS4397 DAC features a built-in digital filter that enables input of not only Super Audio CD DSD streams but also PCM data up to 192 kHz/24 bits. It also contains a delta sigma modulator and DEM (dynamic element matching) circuitry inherited from the gloriously high fidelity 16-bit DAC TDA1541A S2. A switched capacitor DAC circuit is used in the final stage, and each stage has anti-jitter performance exceeding that of previous 1-bit(Bitstream) DACs. Each CS4397 has a dual channel structure.
Apparently, the same skilled Philips engineers involved in the development of the TDA1541 also participated in the CS4397 DEM circuit. The CS4397 is therefor a super DAC that inherits the tradition of Philips technology.
(source: All about Marantz - stereosound)
最後修改時間: 2019-11-16 08:35:36 - #87 [addyg], 19-11-16 21:30如果我同你講用普通1541返印皇冠上去,10個人有9.999個聽唔出。
我自己用普通1541佢根本就係好清,已很正。
所以我完全有理由相信市面好多假嘢。 - #88 [Akaigxc], 19-11-18 12:20#87
你自己現在米係度自暴其短羅,因為你套系統能力有限,分析力唔夠,不能夠有鉅細靡遺的分析重播能力,所以你無能力分別出有冇皇冠的分別!你自己知好啦,唔好拉哩人地落水,話9.999聽唔出…你自己水平如此低,無接觸過皇冠機種,就以偏概全,以為人地玩d器材級數都同你一樣,所以就聽唔出分別,哩d米所謂駝鳥政策羅,自己做咗駝鳥就以為人地個個都係!唉,!真係無藥可救!
唔講Sony R1, 假如你有能力買下,玩過聽過philips LHH1000系列,或者Marantz CD+DA12系列哩d皇冠機種,又或者學人玩分體CDP+DAC玩法,玩更高階機種,才出來指指點點那些真假皇冠1541啦!唔好又講又話在香港未見過上述機種呀!R1或者可以比你講得通,LHH1000及CD/DA12在香港二手市場經常見架,更高級數的分體CDP+DAC牌子如KRELL WADIA MARK仔等,多的是,你聽過未呀?只有玩到哩個級數系統的人,就好自然有能力悉别真假皇冠1541的表現,騙不到的,你根本都未去到哩個級別,分唔出真假,唔出奇啦,仲係度講乜春?歸位啦!
最後修改時間: 2019-11-18 12:39:22 - #89 [spyder], 19-11-18 12:53求經驗:
有無師兄試過同一部機比較有皇冠與冇皇冠嘅分別?
例如 Marantz CD95 換上無皇冠作比較?
又或者LHH1000。
如非同一部機,很難比較出 1541A 跟 1541AS1 的分別,因用得 S1 既機型,其他部份都會更高級,勝出是理所當然的。 - #90 [addyg], 19-11-18 13:29點解有人覺得有皇冠先聽得,又唔自己開個"有皇冠1541同好會"呢?
如果果佢地覺得普通1541唔好聽點解重留係呢個貼到呢?
Think think - #91 [老四], 19-11-18 14:41#90
有病你就睇医生啦....咪食咁多 - #92 [林菲], 19-11-18 15:11講開又講,日本女星啲名字都改得幾古怪 :)
- #93 [高原], 19-11-18 15:57#54
Ax1大哥, 找到了以前拍下Tandberg 3015A的圖, 清晰看到是兩棵TDA1540P, 上次把玩已是幾年前的事, 正宗厚潤的聲底但不覺含糊, 當然解像力不及現代機。 - #94 [patkwok], 19-11-18 16:04#88
Akaigxc兄
Marantz CDA-94 Limited 玩唔玩得過?
最後修改時間: 2019-11-18 16:05:08 - #95 [patkwok], 19-11-18 16:16
- #96 [patkwok], 19-11-18 16:19#93
TDA1540P比TDA1541仲要早
正! - #97 [羅密歐], 19-11-18 16:26#93 那台是舊一代的Tandberg 14bit機,新一代已改為TDA1541 16bit DAC,型號不變。
最後修改時間: 2019-11-18 16:27:09 - #98 [Ax1], 19-11-18 18:47#93
高原大哥,我都想改一部雙1540玩下, 可唔可以比嗰塊線路板張相睇吓或者我PM你,whatapp比我方便嗎 - #99 [Ax1], 19-11-18 18:52有幸可以幫個朋友,搞緊呢部studer A730
- #100 [Akaigxc], 19-11-18 21:24#94 PatKwok兄:Marantz CDA94 DAC, 即係Philips DAC960, 兩部都係同一樣的DAC,當然,馬記版本用料比較高级D,原裝出廠時只係用TDA1541A, 我曾擁有過DAC960,係90年代初2手買返來,經上一手改裝過,配上TDA1541AS1雙皇冠,S1原本係單皇冠但有一批再經philips原廠再揀選多次而形成雙皇冠,分析力比單皇冠更厲害,Dynamic更濶,人聲更warm,上手機主同我講,原裝非皇冠版本係出唔到現時效果的,一定要換上皇冠版本才可以,後來,因為我要升級玩Wadia,而同時又有人願意出超高價收我部機,我才割愛,那時期Windows95仍未出現!自此到今天,我仍然係Wadia用家,不過,我以過來人身份講,dac960/cda94本身底子係唔錯的,值得買入玩住先,如果上手機主已經換上皇冠版本當然更好,未換的,你可以嘗試找行內人問問,可否從劏機中劏出一粒皇冠版本出來再找師父更換上去,我現在仍有部1541DAC係拿來粗用的,即係看卡通片或電視劇或演唱會時用的,真正聽野時會改用Wadia,哩部粗用的1541DAC,其內部粒皇冠就係我收到部Marantz死機劏出來的!只有劏機劏出來的才是真品,淘仔上面d1541全部係假皇冠,千萬不要買!
最後修改時間: 2019-11-18 21:33:44 - 下一頁 (5 of 16)
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使唔使印係機頂"此機有皇冠"