I hope, you can agree, that this type of table do add value in this general step up thread.
If you can add even more tables of data and links, fine!
I am sure, this will be seen as helpful as well
Popularity of a step-up transformer?
- Thread starter Corinthian
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If you can add even more tables of data and links, fine!
I am sure, this will be seen as helpful as well
Your list points at a somehow limited experience with vintage SUTs but indeed the data can be helpful.
I don't know all SUTs on the market for my own experience, so my list is certainly not complete, but I have at least tested, owned, or still own the ones on the list I shared.
I don't know all SUTs on the market for my own experience, so my list is certainly not complete, but I have at least tested, owned, or still own the ones on the list I shared.
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Rather than starting a new thread I'll ask on this.
What is the opinion on me adding a SUT to my system and if people think it would be a viable option what sort of price range should I look?
I'm assuming for my cartridge I'd be looking for a 1:10 ratio?
My amp is integrated but obviously has a MM stage.
Cartridge specs are as follows:
What is the opinion on me adding a SUT to my system and if people think it would be a viable option what sort of price range should I look?
I'm assuming for my cartridge I'd be looking for a 1:10 ratio?
My amp is integrated but obviously has a MM stage.
Cartridge specs are as follows:
| Total mass | 7.5g |
| Frequency response | 20Hz – 20kHz |
| Output voltage (at 5 cm/sec) | 0.5mV |
| Channel separation | > 32dB |
| Channel balance | < 0.5dB |
| Tracking ability | 80µm |
| Recommended tracking force | 2.8g (± 0.2g) |
| Cartridge impedance | 50Ω |
| Cantilever / stylus shape: | Boron / Clearaudio Prime Line |
| Compliance | 15µ/mN |
| Coil assembly | Absolutely symmetrical design |
| Coil material | 24 carat gold |
| Cartridge body | Bullet proof wood |
Cartridge impedance and outputlevel are not perfect for a SUT,
You might consider an active head amp, like offered from Allnic
You might consider an active head amp, like offered from Allnic
1:10 SUT should be OK, but you need to test it if you can
If you like it. Does it sound good. Is it better than you have already.
Why not clearaudio phono sounds pretty fine perfect match
P.S when you want really a sut then this
mk-analogue.com
P.S when you want really a sut then this
Step-up transformer SUT-1M | MK Analogue
Fully balanced MC transformer for medium and high impedance pickups from 12 ohm internal resistance – transparent, uncoloured, involving sound
mk-analogue.com
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The Allnic MC Head AmpHA-5000 is in their regular product line up and from not very rare.
Your local Allnic Dealer should have one in the Demo
Nonsense. This would be a good match for any classic SUT with high Impedence 40ohm tap.
A Denon AU-320 or 340 would be very suitable.
The 40 ohm tap give 1:10 gain and will give 4.5mV to RIAA at 0.5mV signal.
50ohm internal resistance is close to the 40ohm tap and will give a linear respons with wide bandwidth.
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Would you be so kind to accept my personal experience, that High Coil Resistance carts and Carts with an output of 0,5mv and higher do work better with head amps than with SUT.
Do you have any personal experience with medium output voltage and high resistance carts and SUT?
You might share a list of well working combinations, that I can find out and learn.
I prefer a scientific approach doing measurements to see what what works.
I have found that matching the cartridge internal resistance to the same nominal tap value gives the best response, like this 3ish ohm to 3 ohm tap and 40-ish to 40
Without a good match , load tuning is required like here
..
So with a 50 ohm cartridge a SUT made with nominal 40ohm tap will be suitable
Here is the Denon AU-320 40 ohm response,
The right SUT to the right cartridge is the key to success, many fail using a non optimal match.. match the cartridge resistance to the same nominal tap value and the chance of success is greatly improved . If not matching well anything can happen..
I have found that matching the cartridge internal resistance to the same nominal tap value gives the best response, like this 3ish ohm to 3 ohm tap and 40-ish to 40
Without a good match , load tuning is required like here
..
So with a 50 ohm cartridge a SUT made with nominal 40ohm tap will be suitable
Here is the Denon AU-320 40 ohm response,
The right SUT to the right cartridge is the key to success, many fail using a non optimal match.. match the cartridge resistance to the same nominal tap value and the chance of success is greatly improved . If not matching well anything can happen..
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Thank you for sharing your measurements.I prefer a scientific approach doing measurements to see what what works.
I have found that matching the cartridge internal resistance to the same nominal tap value gives the best response, like this 3ish ohm to 3 ohm tap and 40-ish to 40
Without a good match , load tuning is required like here
..
So with a 50 ohm cartridge a SUT made with nominal 40ohm tap will be suitable
Here is the Denon AU-320 40 ohm response,
View attachment 157935
The right SUT to the right cartridge is the key to success, many fail using a non optimal match.. match the cartridge resistance to the same nominal tap value and the chance of success is greatly improved . If not matching well anything can happen..
My personal experience belongs to listening only.
Different ways to reach sound heaven sometimes result in different results.
I’ve had two Allnic SUTs, the AUT-2000 is copper wound and the AUT-8000, my current SUT, is silver wound. It has adjustability for gain and capacitance, as well as two inputs, which is really nice and allowed me to add a second table. I compared the two before settling on the AUT-8000 which bumps up the resolution a tiny bit and brings out reverb on recordings better. If you only have the need for one input, you can do a lot worse than a used AUT-2000. Perhaps only second to my open baffle fanboyism is my SUT fanboyism. Absolutely live what they do to analog playback.
NOT using a SUT is of course an option too.
Just remember there are som myths about MC loading into a transistor stage too.
I have found that the only thing that changes with Transistor MC load setting is the signal level , but that gives an impression of different tonality , which is easily explained by the Fletcher-Munson curve. “ everything louder sounds better” , you get more bottom and top at higher listening level.
I did not find 47k the choice best, it increased noise compèred to lower settings. I use 200ohm and I cannot really differentiate between that and my SUT at 47k by ear when levels are matched. The differences are outside my hearing range.
But with SUT the noise floor improves a few db..
Another reason that I use a SUT with variable settings and a bypass mode is that it allows me to run 2 turntables into one single input RIAA.
Just remember there are som myths about MC loading into a transistor stage too.
I have found that the only thing that changes with Transistor MC load setting is the signal level , but that gives an impression of different tonality , which is easily explained by the Fletcher-Munson curve. “ everything louder sounds better” , you get more bottom and top at higher listening level.
I did not find 47k the choice best, it increased noise compèred to lower settings. I use 200ohm and I cannot really differentiate between that and my SUT at 47k by ear when levels are matched. The differences are outside my hearing range.
But with SUT the noise floor improves a few db..
Another reason that I use a SUT with variable settings and a bypass mode is that it allows me to run 2 turntables into one single input RIAA.
Allnic can produce great SUT,
but, as said above, high resistance, relative high output carts very often sound better with the Allnic (tube based) headAmp
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