A23 SUT is home !

[inmybackpages]

I found that the choice of phono cables as well as the cables from the A23 SUT to the preamp dramatically affected the ground noise. After swapping some cables around I managed to resolve these issues. I second the recommendation to move it around - it's very sensitive to EM, so you'll want to keep it distant from any PSUs or wall warts.

[restock]

Shindo 0.5m interconnects and somewhat careful placement and the A23 SUT is as quiet as the MC input with the built Lundahl stepup.

You can connect both the A23 ground and the phonocable ground to ground on your Giscours (=star grounded).

[Loop4fun]

Originally Posted by restock

You can connect both the A23 ground and the phonocable ground to ground on your Giscours (=star grounded).

Jerome, Definitely try this... Both my A23 and phono are grounded to the Giscours.

[Jerome W]

WOW !
My friends : I 'm here since almost the first day in april 2009 and I am still amazed by the level of expertise and help we can get here.
Clearly the best audio forum on earth.
Thanks a lot for all your advices.
Will try and report.


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[Jerome W]

Star grounding ( connecting both the ground of the phono cable and the ground of the A23 to the Giscours ground) helped clearly.
Still a small noise in the tweeters with volume at max but I never go there of course.
I also moved the A23 from the back of the Giscours to a dedicated shelf available below the TT. ( Where the REF 2 was sitting indeed) It is funny to see this small thing on a dedicated shelf !
Will also try with changing the IC from the A23 to the Giscours.
I believe the shorter the better ?
Someone suggested a Shindo 0.5 m IC.
I wonder what is the difference in sound and price between Shindo and A23 cables ?

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[Jerome W]

Originally Posted by turntable

Hi Jerome

Congrats. the SUT should be used with the mm stage as it needs 47k load.

The mc input is giving you a warmer as it is not loaded at 47 k, unless your mc input has 47k. Also with you mc input you would be going through 2 x suts. It should not sound better after the sut has broken in.
The sut will need at least a 100 hours to fully flesh out. But, heh if it is sounding better into the mc stage keep listening for the burn in period then try the mm.

6moons audio reviews: Jeff Day's Music Lovers Series - RoadTour 1, Exit Pitch Perfect Audio

As other have indicated, plat around with the sut position and grounding. Run a wire from sit to pre amp, phono stage and even no ground might work. You need to try every option.

Thanks Shane !

Just to make it clear, I was comparing the sound of the 103 direct in the MC of my preamp versus the 103 > SUT> MM of the preamp.
I never plugged the SUT in the MC of the Giscours and of course won't do it.
It is starting to sound really good now with the star ground and moving the A23 from the back of the Giscours to a dedicated shelf far away from any PSU or PC....
Actually the improvement in dynamics is very palpable.

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[turntable]

Originally Posted by Jérôme W

Thanks Shane !

Just to make it clear, I was comparing the sound of the 103 direct in the MC of my preamp versus the 103 > SUT> MM of the preamp.
I never plugged the SUT in the MC of the Giscours and of course won't do it.
It is starting to sound really good now with the star ground and moving the A23 from the back of the Giscours to a dedicated shelf far away from any PSU or PC....
Actually the improvement in dynamics is very palpable.

Sent from my iPad using A.Aficionado

Ah ha. That makes more sense

Whether or not in the long term the sut /mm is better than the mc stage, only you can decide. Have fun finding out