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[CAS] 堅過石堅,再見 Soundgenic!QNAP HS-453DX NAS

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 樓主| 發表於 2019-1-21 11:18:16 | 顯示全部樓層
diamondblack 發表於 2019-1-21 10:54
用Kondo嘅窮L我都係第一次見。


往後你會見到更多我呢 D 窮 L
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 樓主| 發表於 2019-1-21 11:19:48 | 顯示全部樓層
diamondblack 發表於 2019-1-21 11:12
m2只係physical interface,如果本身部機只係sata,m2只係sata個extension,performance唔會同傳統2.5寸p ...

冇錯,453DX 個 M.2 只是 6GB SATA,所以同 SATA SSD 速度上冇分別,只是另一 interface。
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發表於 2019-1-21 11:33:56 | 顯示全部樓層
我相信NVME 的SSD 有比較大的noise,無論部機是否支援,也覺得SATA 的SSD 會好聲D。

NAS 不是local storage,HDD 轉動的聲音聽到嗎?期待師兄分享實際經驗。

Fanless 的設計是確有好處的。
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發表於 2019-1-21 11:35:40 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:33
我相信NVME 的SSD 有比較大的noise,無論部機是否支援,也覺得SATA 的SSD 會好聲D。

NAS 不是local storag ...

"NVME 的SSD 有比較大的noise"....................Yessssss


Even SSD (sata) has more noise than traditional harddisk........
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發表於 2019-1-21 11:36:12 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:33
我相信NVME 的SSD 有比較大的noise,無論部機是否支援,也覺得SATA 的SSD 會好聲D。

NAS 不是local storag ...

Fanless 的設計是確有好處的......not necessary......
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發表於 2019-1-21 11:38:57 | 顯示全部樓層
vhs 發表於 2019-1-21 11:35
"NVME 的SSD 有比較大的noise"....................Yessssss

用了師兄的pure reference SATA 就不會了。
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發表於 2019-1-21 11:44:16 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:38
用了師兄的pure reference SATA 就不會了。

audio grade SATA cable is a must!  

you will hear the improvement instantly...........
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發表於 2019-1-21 11:46:08 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:38
用了師兄的pure reference SATA 就不會了。

I am now using Afterdark SATA cables...and the improvement is already significant........
Roon Server.jpg
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發表於 2019-1-21 11:46:58 | 顯示全部樓層
vhs 發表於 2019-1-21 11:36
Fanless 的設計是確有好處的......not necessary......

對此我依然覺得Fanless NAS 是有好處的。風扇的問題在於有時增加轉速或減少轉速,會對電氣方面做成spike。至於有否效果要看實際與系統的結合和用法而定,也要看整體系統的resolution 而定。無論如何,這個設計不會比有風扇的NAS 差(假設其他的都不變),MPOV。
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發表於 2019-1-21 11:48:57 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:46
對此我依然覺得Fanless NAS 是有好處的。風扇的問題在於有時增加轉速或減少轉速,會對電氣方面做成spike ...


but the onboard dc-dc switching regulators are more noise than the fans...........
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發表於 2019-1-21 11:53:49 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:46
對此我依然覺得Fanless NAS 是有好處的。風扇的問題在於有時增加轉速或減少轉速,會對電氣方面做成spike ...

From my personal experience, the networking and the SATA chipset are more important than anything........
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發表於 2019-1-21 13:01:55 | 顯示全部樓層
vhs 發表於 2019-1-21 11:35
"NVME 的SSD 有比較大的noise"....................Yessssss

不過我將WIN10置於M2 NVME,開機快到

如果係Intel optane,我諗會快到
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發表於 2019-1-21 13:15:50 | 顯示全部樓層
hakman 發表於 2019-1-21 13:01
不過我將WIN10置於M2 NVME,開機快到

如果係Intel optane,我諗會快到  ...

But sound no good......
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發表於 2019-1-21 13:22:21 | 顯示全部樓層
greenleo 發表於 2019-1-21 11:33
我相信NVME 的SSD 有比較大的noise,無論部機是否支援,也覺得SATA 的SSD 會好聲D。

NAS 不是local storag ...

NVMe,SATA SSD,HDD,呢個係魚與熊掌問題。
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發表於 2019-1-21 13:42:52 | 顯示全部樓層
vhs 發表於 2019-1-21 11:53
From my personal experience, the networking and the SATA chipset are more important than anything. ...

But then that goes back to lower the latency of the system as much as possible. Every penny counts. I don't really see why not using much faster interfaces such as NVMe. It's more if you understand the tradeoff and then to get around or mitigate the tradeoff.
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發表於 2019-1-21 13:43:59 | 顯示全部樓層
vhs 發表於 2019-1-21 11:53
From my personal experience, the networking and the SATA chipset are more important than anything. ...

in the digital domain, the improvements are additive.  I don't see why the noisy dc-dc coupling negates the fanless case?  If one is very serioius, one may mod the system and feed a better PS.  LPS is one of thy ways, better DC cables is another.

When the primary bottlenecks are resolved, the 2ndary bottlenecks become the primary.  
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發表於 2019-1-21 13:57:01 | 顯示全部樓層
greenleo 發表於 2019-1-21 13:43
in the digital domain, the improvements are additive.  I don't see why the noisy dc-dc coupling ne ...

Even you use a very good LPS for a x86 computer....the benefit is not that huge unless all the dc-dc switching regulators have been changed to all ultra low noise ones. There are various voltages across the x86 motherboard (CPU, Ram, etc.).

You could just focus on the last step of the path within the x86 computer such as the network card which can be powered by an external LPS.

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發表於 2019-1-21 13:58:16 | 顯示全部樓層
diamondblack 發表於 2019-1-21 13:22
NVMe,SATA SSD,HDD,呢個係魚與熊掌問題。

I agree that it's a matter of choice/trade off.  To me, for a 7x24 music server, quick boot-up is really not that necessary because it's one off.

The SATA and the NVME noises are always there, not one time only.  Anyway, what is the most important is if the user likes the sound or not which is sujective.  However, the magnitude of the noise between different hardware is measurable and relatively objective.
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發表於 2019-1-21 14:06:07 | 顯示全部樓層
greenleo 發表於 2019-1-21 13:58
I agree that it's a matter of choice/trade off.  To me, for a 7x24 music server, quick boot-up is  ...

I am using my Roon Server for other purpose as well (i.e., working using Excel and Word, internet, ripping disc, watching youtube, etc.).

I am still using Intel i5 (gen 4) and a regular SSD (sata) which are fast enough. Unless you have to do some video editing, then it is a different story.
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發表於 2019-1-21 14:07:57 | 顯示全部樓層
vhs 發表於 2019-1-21 13:57
Even you use a very good LPS for a x86 computer....the benefit is not that huge unless all the dc- ...

There are guys I know who separately power each part of the PCB using different more than great PS.  Better not to mention the price.

It really depends on how you tackle the system.  The JCAT is one way and clock mod the other and a great switch another, ...  I won't claim one superior to the rest because the whole is greater than the sum of the parts.  The implementation is usually of higher importance.

Technically, the principle of the PCIe JCAT and the excellent switch are more or less the same: better PS, excellent clock, ...  Logically the same.
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