It sounds much different at 100 ohms tone wise better , but noisy to much gain, so I think maybe 150 to 200 ohms will do. The Hana sl sounds good at 470 ohms the Hana ml sounds to stringent
Need a sut for Hana ml
I hava a Cary ph301 phono stage Mc has 60dB at 100 Ohms it’s to much gain for cartridge, I tried 1:10 into mm input , gain much better but it produced 470 Ohms sounds more like my Hana sl, the Hana ML needs >100 Ohms ,what ratio sut should I use ,any advise would be appreciated ,thank you ,and happy holidays.
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- 30 posts total
My simple answer: x factor 14, see below. I’m still new to the world of MC and SUT, others will correct me if wrong. I learned a great deal here after I started this thread about SUT for .3mv; 10 ohm resistance https://forum.audiogon.com/discussions/which-sut-for-3mv-10-ohms-mc-cartridge-into-3mv-mm-input-sens... My conclusion was to choose a SUT with a few variations, options, perhaps factory retrofit, to solve both current and future cartridges. Can CARY factory modify yours? In a way you can revert or modify in the future? btw, the impedance settings on the front of a SUT are not the same as the resultant output, it doesn’t know what your cartridge is sending or it’s coil’s impedance. ................................... My choice was AT33PTG/2, output .3mv; 10 ohm impedance. Your Hana ML seems quite similar .4mv out, 7 ohm impedance, I like it’s separation and tight channel balance, that’s why I picked mine. But, the combo of a bit stronger signal with lower coil impedance can be problematic. You need to find the highest signal strength you can work with (highest x factor you can use to control the impedance that will be shown to the phono’s 47k. The simple formula for impedance is to use 10x your coils impedance as a general goal for the amount to show to you preamp’s 47k input (yours: 7 x 10 = 70, go up from there). OEM simply says greater than 100 ohms. Thus you want your phono input 47k divided by x factor squared (xfs) to be up/dn from 70. 47k divided by 70 is xfs of 670, that’s a high x factor of 26. Problem: .4mv x xf 26 = 10.4mv, much too high signal. if x factor 16, then signal = 6.4mv (some loss, still high). Now, xfs = 256, 47k divided by 256 = 183 (much closer to 70). if xf 14: signal 5.6mv; 47k div by xfs 198 = 240 ohms to phono perhaps your best choice. if xfactor 12, signal then 4.8 before a bit of loss, 47k divided by xfs 144 = 326 ohms, ’more above’ 70 ohm guidance, but within OEM guidance, |
It sounds much different at 100 ohms tone wise better , but noisy to much gain, so I think maybe 150 to 200 ohms will do. The Hana sl sounds good at 470 ohms the Hana ml sounds to stringent The SL and ML have similar gain - 0,5mv and 0.4mv respectively, so gain should be the same, The ML is a crisper sounding cartridge, the SL is soft sounding. Although the SL is 30ohms vs the ML 8ohms, what you are hearing is more the cartridge sound than the loading/gain implications, and you might be chasing a rabbit down a hole trying to fix it. Have you rechecked set up including VTA which will need to be more exacting with the ML stylus profile. |
What Dover said . Plus, I gather you are judging the sound of the ML when you play it through the MC section of your preamp with a 100 ohm load compared to the sound going through a step up transformer into the moving magnet section of the very same preamp. In doing so, you are comparing apples and oranges. There are more differences between the two set ups than just the difference in impedance seen by the cartridge in the two set-ups. |
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