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Full Version: How to reduce hiss with phono at high volumes?
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Hi All,

First off, I have to admit, I'm not nearly as knowledgable as a lot of people on this forum and this is my first post to any type of audiophile chat room, so please excuse any unintentionally dumb statements or questions.

I just got an Expert Pro 250 and Linn Sondek LP 12 with a Windfeld Ti cartridge. Everything sounds great, but I'm surprised at the amount of hiss coming from the system at high volumes. I reduced the sampling rate from 192 kHz to 96, but the hiss is still quite noticeable. In fact, it's far greater than my previous system, which was far less high end.

Any recommendations? I greatly appreciate everyone's input!
Hi

Welcome to the forum.

Unfortunately you are not the first to complain about the hiss from the Devialet MC phono input. There has been quite a lot of posts about this subject here.

I looked up your cartridge and it has quite a low output, 0.2mV, so the gain of the MC stage needs to be quite high.

As you have already discovered the high gain wIll give rise to some hiss from the phono stage in the Devialet.

My recommendation would be to find a suitable step up transformer for the Windfield and set up the phono stage in the Devialet to a moving magnet setting.

I am using a Koetsu Black Goldline MC which has a comparatively high output compared to the Windfield at 0.6mV, I get some hiss when using the Koetsu directly on an MC setting on the Devialet 440, but it’s not really that obtrusive.

However I have found that the best result is to use a step up transformer into the MM setting on the phono stage, no hiss and the sound is much better.

You have two other options of course. You could use a high quality moving coil head amplifier in place of a step up transformer. Or you could also use a separate MC phono preamp into a line input on the Devialet. However neither of those solutions will be as low noise as a step up transformer.







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Aginst hiss , use a step Up transformer , i do that With cadenza Black, With Wery good result .
What could be good step up for Dynavector DV20X2L?
(06-Oct-2018, 10:54)Finn Wrote: [ -> ]Aginst hiss , use a step Up transformer , i do that With cadenza Black, With Wery good result .

Hi Finn,

What SUT do you use with the Cadenza?
Thanks so much to everyone who replied. I've been really impressed with this community as a whole. Yet as helpful as the answers are, they are equally disappointing. Spending near $20,000 for an amp was a very large purchase for me, and I have to admit that given everything that I read about how high quality the phono stage of the Expert Pro was, I'm kind of shocked that it leads to so much hiss. Is this something that you have commonly dealt with and therefore expect this type of problem or is it something to be really upset about?
To Dev _Steve i use ortofon verto , but if i should have ortofon caridge winfeldt i Would bye that sut / ortofon st -80 se ,perfect match too ortofon Vincent . You have a high end pu use SUT who is made for ortofon high end pu.
(06-Oct-2018, 15:27)Dev_Steve Wrote: [ -> ]Thanks so much to everyone who replied. I've been really impressed with this community as a whole. Yet as helpful as the answers are, they are equally disappointing. Spending near $20,000 for an amp was a very large purchase for me, and I have to admit that given everything that I read about how high quality the phono stage of the Expert Pro was, I'm kind of shocked that it leads to so much hiss. Is this something that you have commonly dealt with and therefore expect this type of problem or is it something to be really upset about?

What are the settings you used in the Configurator for the cartridge?
I Think if people use lov output caridge ,With Any amp they Will have ploblem With hiss. Ofcorse if you bye high output i Think you Don,t have hiss? Mabye if people play With the settings they Can have just a little hiss , i Don,t know i go from MM , to MC and find out that SUT is the bedst for me , no hiss and fantastic Sound.
(06-Oct-2018, 16:48)baddog Wrote: [ -> ]
(06-Oct-2018, 15:27)Dev_Steve Wrote: [ -> ]Thanks so much to everyone who replied. I've been really impressed with this community as a whole. Yet as helpful as the answers are, they are equally disappointing. Spending near $20,000 for an amp was a very large purchase for me, and I have to admit that given everything that I read about how high quality the phono stage of the Expert Pro was, I'm kind of shocked that it leads to so much hiss. Is this something that you have commonly dealt with and therefore expect this type of problem or is it something to be really upset about?

What are the settings you used in the Configurator for the cartridge?

460 ohms; 100PF; Max Level @ 600; WiFi Standby On; 96 KhZ sampling
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