New SUT for Denon 103r

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mgsboedmisodpc2

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New SUT for Denon 103r
« on: 28 Dec 2015, 09:14 pm »
I want to upgrade from my 1:10 Denon AU-300LC Step Up Transformer to one of the Step-Up-Transformers using the new 1:20 CM-1254 "The CM-1254 is the replacement part for the CM-1131. The CM-1131 is hand made by David Geren while the CM-1254 is manufactured on the factor floor. The CM-1254 does go through final test by Mr. Geren. " This should improve what I hear from my Denon 103r.

 Has anyone tried a SUT using the new CM-1254 transformer yet?

plastico

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Re: New SUT for Denon 103r
« Reply #1 on: 3 Jan 2016, 09:39 pm »
I went from a Denon AU-300LC Step Up to a Budgie 1254 Step Up just before Christmas for my Denon DL-S1. It will elevate your cart to another level, that's for sure! I am sure mine has not broken in yet. I am now using my Denon AU-300LC Step Up for an emergency wheel chock! :lol:
Cheers, Doug

AvFan

Re: New SUT for Denon 103r
« Reply #2 on: 3 Jan 2016, 09:45 pm »
I have the Budgie 1254 as well and it is my first SUT so I can't offer a comparison to other SUTs.  However, I use it with a DL-103 and a Shelter 501 II and my Budgie phono preamp with good results. 

mgsboedmisodpc2

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Re: New SUT for Denon 103r
« Reply #3 on: 4 Jan 2016, 03:33 pm »
AvFan on your Denon  DL-103 are you using the 1:20 or the 1:40.  I have read a review of the reviewer perfering the 1:40 setting with his Denon  DL-103.  Which lever are you uising?

AvFan

Re: New SUT for Denon 103r
« Reply #4 on: 4 Jan 2016, 05:50 pm »
I'm using the 1:20 setting on the SUT with the 103 as Shannon Parks recommended.  It is plenty of gain and allows for 200 Ohms loading versus around 50 Ohms at 1:40 on my Budgie phono preamp.  I think loading the 103 at 200 Ohms is more important than the gain provided at 1:40 but at 50 Ohms.  However, that may not be to your liking in your system so at least you have the option.  Also, the 1254 SUT allows flexibility should you want to use cartridges with less than 0.3mv output. 

mgsboedmisodpc2

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Re: New SUT for Denon 103r
« Reply #5 on: 4 Jan 2016, 07:17 pm »
Hmmm interesting the Denon AU-300LC recommended use is for  3 ~ 40Ω cartridges this SUT has a Primary & secondary impedance: 40Ω and 4Ω.  DENON recommends the 103 and 103r be loaded at 40 Ohms
I have read for Active pre amp the Recommended Load Impedance is 100 Ohm or greater except for MC Step up transformer where the recommendation is 40 Ω and so this suggests the 1:40 selection with a 50 ohm load might be best.

Question is what have you heard and have you tried both and if so which do you perfer?

Can you hear extension within the high frequencies with one choice over the other?

Can you hear a difference within image presented with one choice over the other?

plastico

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Re: New SUT for Denon 103r
« Reply #6 on: 4 Jan 2016, 09:58 pm »
I have tried the higher setting with the Denon DL-S1 and it becomes too bright. It is not extended highs, just bright. So I prefer the low/1:40 setting. And my recommended loading with SUT is 40 ohms as well.
Cheers, Doug

bacobits1

Re: New SUT for Denon 103r
« Reply #7 on: 4 Jan 2016, 11:59 pm »
Doug I thought you were using a Denon AUS1 or AU 103 or something with the DLS1?

plastico

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Re: New SUT for Denon 103r
« Reply #8 on: 5 Jan 2016, 01:22 pm »
Hey bacobits1, long time no hear! Yea, I had to sell that fine SUT for emergency funds and use a 300LC SUT in the meantime. I thought It was OK till I took the plunge and got the Budgie. Oh, and I also got the WE wire and Belden IC. Nice!
Cheers, Doug

bacobits1

Re: New SUT for Denon 103r
« Reply #9 on: 5 Jan 2016, 01:46 pm »
Isn't that old wire something!!! HA people will not believe it. The usual source dosn't have the WE16GA anymore. Just picked up some 14ga though.
Cinmag do make nice stepups. Very responsive to the wire you use to hook it into the Pre. Not just shielding.

Enjoy!

plastico

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Re: New SUT for Denon 103r
« Reply #10 on: 5 Jan 2016, 02:14 pm »
Thanks man! I think that Budgie is up there with the Denon AU-S1 for sure!
Cheers, Doug

sunnydaze

Re: New SUT for Denon 103r
« Reply #11 on: 5 Jan 2016, 03:34 pm »
I heard the Budgie MM phono stage over the weekend and was absolutely floored at how good it was.  Given its budget price, I guess I had low expectations.  I try to avoid this reaction, as I'm constantly on the lookout for great performing / reasonably priced gear from small boutique companies,  but I guess sometimes I succumb to audio snobbery.    :nono:       :roll:

Inserted it into my small rig that I use for relaxed nearfield listening at night, and it absolutely crushed my integrated's (Copland CSA 28) onboard phono section.  Not even close.  Didn't compare it directly with my nice JuicyMusic tubed phono sections  (Tercel outboard,  Blueberry preamp onboard)  in the same rig, but I get the sense it's every bit as good, if not better.

Sweet, round, warm with plenty of detail and drive.  The soundstage was big and layered.  Big rich tone, textured and palpable, with nice image density.  Music sounded really alive had nice pace and flow and hung together in a natural coherent way, but the individual threads were still easy to hear (but not in a surgical / analytical way).  To my ear it had all the good qualities of vintage toob sound, without the negatives of soft / fat / bloated / dark/ veiled.  Really pulls you into the music.

And this was with the nothing special EH 6922 stock tubes.   IME it's a really nice sounding unit, at a giveaway price.   :thumb:

System:  Townshend Rock 3 /  Linn Ittok /  Cartridge Man Music Maker mk3,  Copland CSA 28 integrated,  JMR Twins Mk3 (using Vaughn Triode self-powered bottom section for LF support, low-passed at 80 hz),    Morrow cabling

plastico

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Re: New SUT for Denon 103r
« Reply #12 on: 5 Jan 2016, 03:52 pm »
Man sunnydaze, you can really put into words what I really feel about the Budgie. 8)
Cheers, Doug

AvFan

Re: New SUT for Denon 103r
« Reply #13 on: 5 Jan 2016, 04:57 pm »
I heard the Budgie MM phono stage over the weekend and was absolutely floored at how good it was....
 
And this was with the nothing special EH 6922 stock tubes.   IME it's a really nice sounding unit, at a giveaway price.   :thumb:


Replace the stock EH 6922s with Amperex 7308s and it goes to another level.   :green:   Add the Budgie 1254 SUT and it is a really nice setup with very flexible loading.