Ortofon ST-70 Moving Coil Transformer Review

[Davey]

Within practical limits, the conditions stated by the manufacturer for correct operation, the output level and the FR will both not vary.

No, "practical limits" are not necessarily the same thing as "conditions stated by the manufacturer for correct operation."
Please don't try to make this more complicated (or maybe 'simpler" is the right word ) than it really is.

 

[Marin]

MC=load dependent voltage source
SUT=impedance matching device
Am I getting closer?

MM is better than good enough anyway.

U Okay, how much would it cost me to invest in an LP turntable?
I have Yamaha AVR V-6 and it's pretty damn good thing it has everything for everyone but it's also little crazy when it comes with 350 book that you need to download and app for walkthrough process of assembly I mean how stupid could you be that you don't know connect HDMI and regular plug?
Then you forget in about a month 100 " ambient preseset for all the best clubs in the world in 5.2.2 or in your cause your speakers are amazing7.2 what ever little processing that little DSP is turning your music to,at least Flecher-Munsson curve is doing lot's of good thing button DSP button I leave off I am purist when it comes to music so stereo, maybe 2.2 for critical and or DD passthrough for movie's, but music PCM all night long and and as far as I understand, the only thing that changes is the Dolby digital simulator 2.0 signal, or real stereo from a good LG LED TV. just transfer the same music at same time is amazing experience , and having that option's

 

[sceptical1]

how much would it cost me to invest in an LP turntable?

Davey would know that better than me.

 

[Balle Clorin]

SUT=impedance matching device

Well, a SUT is not really for impedance matching, it is for gain only, since we are interested in the voltage not power. A MC does not care about the load either. The signal level from MC drops at lower resistance in the receiving device. As long as the load is 5-10 times or more- say 100, the signal loss is not to bad.


Impedance matching for maximum power transfer: setting load resistance equal to source resistance.
Impedance ratio for low signal loss: if load is 10 times the source resistance, the loss is 100/(10+100)=0.909=>0.83dB
So you can run a MC into 47kOhm , but the high resistance may lead to higher noise pickup, so lower is better, and the is why 10:1 factor is used, to not loose more than 1db..

 

[Cbdb2]

Yes, but not by much. If the load is some 10x the cartridge's own impedance, varying the load to an open circuit would increase the voltage by something around 1dB only. Halving the load impedance (so 5x the cartridge's impedance) would reduce the output around 1dB so not a lot.

S

Ortofon has MC cartridges with 6 ohm output that they recommend a load greater than 10 ohms.

 

[sergeauckland]

Ortofon has MC cartridges with 6 ohm output that they recommend a load greater than 10 ohms.

Shows what I mean that low output MC cartridges are pretty immune to loading. What will happen with a 6 ohm cartridge on a 10 ohm load is that output will almost halved, but apart from that, which can be easily remedied by a small turn of the volume control, the sound won't change.
Yes, the S/N ratio will be worse by some 5dB but with any half decent phono stage, it'll still be quieter than the LP.

S

 

[Newman]

with any half decent phono stage, it'll still be quieter than the LP.

So why not just use a solid state MC pre? "It'll still be quieter than the LP" too. And you won't have to turn up the volume.

 

[Bob from Florida]

So why not just use a solid state MC pre? "It'll still be quieter than the LP" too. And you won't have to turn up the volume.

Exactly why I use the Waxwing for any cartridge. I can see a valid case for a SUT in conjunction with a vacuum tube moving magnet phono stage. A good vacuum tube MM phono will have massive headroom and would benefit from a SUT for moving coil use. Not endorsing this as a universal solution, just stating a particular instance for optimization using a SUT.

 

[LeeH]

55 years ago, my AR turntable, Ortofon STA-76 MC amp, and Ortonfon MC20 sounded just marvelous. My friends and I were all amazed.
Today, I have two turntables and two moving magnet cartridges. I listen rarely. Only when it is a euphonic choice, or I want to demonstrate that it is not a superior medium. I have a few vinyl albums that sound better than the same in a digital container... but not many. My streamers and DAC systems are excellent, and very expensive.
Still, I can understand how some people stay with the vinyl and tape hobby.
By the way, I don't think most of the Chinese brands are a good value any longer. Example: the SMSL CD transports. I use an ASUS blueray that outputs USB to my Auralic streamer and it sounds as good or better. It costs $125.

 

[LHI-6262DK]

Hmmm, I have indeed enjoyed Amir's skilled digital equipment reviews - but this one is a disaster that should be deleted as it is the single most un-scientific and totally misleading review of a Moving Coil SUT that I have ever read in my 63 years on this Earth.

Unfortunately Amir and many commenting this "review" of Ortofon ST-70 demonstrates absolutely no understanding for moving coil cartridges and less about audio transformers. Hence the best is indeed simply to delete this horrible blunder from an otherwise excellent site with so many great reviews.

A very few comments demonstrates some proper knowledge about this domain - and the most important point is that a SUT is designed to be loading an impedance - not a resistive "source". Measuring a SUT with a DC multimeter is an absolute No, No, No (and only something an ignoramus would do).

Any Moving Coil SUT is designed to support a rather specific range of Moving Coild Cartridges - Not "any" Moving Coil cartridge. Ortofon SUT's are designed for Ortofon (low impedance - not low resistance ) Moving Coil cartridges - and there are absolutely no low-output Moving Coil cartridges that has a source "load" of 600 Ohms.

Please Amir - you who otherwise are providing excellent no-nonsense information on digital equipment - please do yourself and your (devoted - I included) readers the favour of actually understanding exactly how a SUT is working and why before spreading such misinformation as in this "review". I am truly dissapointed in seeing especially you providing such misinformation and demonstrating lack of scientific knowledge and knowhov in regard to Ortofon (and SUT' in general).

As a Dane who's been involved in audio for decades - and having friends that used to work in Ortofon's R&D back in the days when analogue was the "top of the pops", I can assure you that the extremely poor results that you measured on the Ortofon/Lundahl SUT is not stemming from incompetence at Ortofon/Lundahl but from your own mistakes. Load any Ortofon SUT with a real life Moving Coil cartridge and you'll get a perfectly flat amplitude response within the working zone of an audio transformer. The problem here is that you have applied the wrong method to your attempt to try to measure on a device that you demonstrate not to understand - and that is of course no shame as no-one can be blamed getting things wrong when not having done the proper research before making this (sorry to say it) blunder of misinformation public.

Be aware that I am NOT trying to be blaming your skills in general - just pointing out that you made a huge mistake in this case.

Please do NOT repeat any SUT reviews before you have made sure that you apply the correct science and methodolog to the problem at hand - or please stick to what you do so excellently, work in the digital domain where your skills demonstrate overwhelming good knowledge and knowhow
I am sure that is has not been your intention to provide such misleading and wrong information - especially not as you provide no-nonsense and superior scientific reviews and measurements in digital equipment. Perhaps this blunder has to do with age? I guess that you are perhaps not as old as I and hence do not have lived much when analogue audio was the only option - and the old dudes like I myself that's been around, we are often in need of removing our shoes so we may crumble our toes due to all the misinformation that younger people spread around about analogue techniques. So kindly understand that you're excused for makin a mistake - everybody can, and will do that at sometimes - this one is just the time where you made a mistake. But it can be corrected - and the best way is deleting the entire review as it is misinformation. Applying the wrong method results in the wrong conclusions - no shame but no honour either.

(I think that anyone should be pleased that here in Denmark - where Ortofon is at home - we are very relaxed people. Had Ortofon been a US-based company, 50 angry lawyers would have suied you for slander and that that may be even worse )

For the poor souls that be mistake comes to read this totally flawed review - please seek information otherwhere when it comes to SUT's and please see (correct) measurements done with the correct methodology elsewhere because all you find here is misinformation... :-(
There are a few posts around in this long sad misunderstood discussion where some correct measurements of SUT's are shown. Rest asure that the Ortofon ST-70 will do even better than those shown here.

My credentials: Extensive experience with different SUT's such as Ortofon STM-72, Ortofon T-20, Ortofon T-30, Ortofon Verto (that by the way is also based upon Swedish Lundahl audio transformers so quite similar to the ST-70 in concept), Ortofon T-2000 and Ortofon T-3000 - and let me tell you "non-analogue" people that the T-2000/T-3000 are absolutely superior both in sound quality as well as scientific measurements and well worth their whopping 2.000 USD retail prices back then (but of course those are not for anyone as 2.000 USD is indeed a load of money by any standard, and less can indeed to it for most audiophiles - even audiophools ).
The very basic requirement: Load the SUT with the correct Moving Coil cartridge (in the Ortofon case 3 ohm impedance - NOT 3 ohm resistance).

I also see a lot of ignoramuses bashing analogue audio in this discussion - and fine, you do not personally like analogue - nor harm in that and nothing wrong with that but going to the extend of providing totally misleading information and with one hand bashing out anyone being an audiophile as "religious" and then with the other hand being exactly merely "religious" does really not suit this otherwise excellent place for no-nonse scientific information (in general but not in this particular incident).
If you think that digital is the "only way" to go - fine by me. If you think that analogue is the "only way" to go - fine by me. But you'll be equally wrong in both cases;
Let's be honerst there is no such thing as a perfect solution that is "digital only" or "analogue only" - use the correct domain when trying to fix a problem that belongs to either the digital domain or the analogue domain.

Looking forward to seeing this misleading and wrong review being deleted - and looking forward to read a lot more excellent reviews on ACR in the domains where Amir's knowledge shines as a positive light.

 

[Hayabusa]

The very basic requirement: Load the SUT with the correct Moving Coil cartridge (in the Ortofon case 3 ohm impedance - NOT 3 ohm resistance

So I assume the 'impedance' is changing so much in the audio band that we can not emulate a moving coil source by a resistor network with an output impedance of 3 ohm?

 

[Davey]

So I assume the 'impedance' is changing so much in the audio band that we can not emulate a moving coil source by a resistor network with an output impedance of 3 ohm?

Amir was using the wrong source resistance.....and the wrong load resistance. This is all explained earlier in the thread.

 

[Hayabusa]

Amir was using the wrong source resistance.....and the wrong load resistance. This is all explained earlier in the thread.

I know, but I was trying to get an answer how he could have done the measurements correctly without having a real moving coil as a source.

 

[LHI-6262DK]

I know, but I was trying to get an answer how he could have done the measurements correctly without having a real moving coil as a source.

As already mentioned, the key fault here is that the "wrong" generator impedance has been used in this (hence useless and totally unfair) "review".

You may assume that using a 3 Ohm generator (impedance or resistance for that matter) will indeed provide measurements that will be (much more) representative of the Ortofon ST-70 SUT real-life performance in regard to amplitude response.

The measured result in this "review" are not really that surprising - if you go back reading SUT reviews from say 45 years ago it has been proven numerously times that e.g. doubling the generator impedance will result in a narrowing of the bandwith of the SUT. So when Amir is using 20 Ohm "generator impedance" it is really not a "poor result" seeing somewhat 3dB-4dB drop of the amplitude response at low/high end of the spectrum when the SUT is designed for a 3 Ohm-6 Ohm generator impedance - in fact this is quite spot-on what you should expect in that case. So the measurement is in its-elf not necessarilly "wrong" as such - it is the CONCLUSIONS that Amir provides from his (totally wrong) methodology that are indeed (very) wrong

Then continuing out of the path of this very wrong methodology and perform a measurement of a SUT designed for 3 Ohm - 6 Ohm generator impedance with a generator impedance of 600 Ohms only demonstrates having misunderstood (low output) Moving Coil cartridges and SUT design. It is no surprise that such "mismatch" will result in the shown non-usable amplitude response with a 600 Ohm generator impedance but again the measured result should be expected by anyone having knowledge about cartridges and SUT's as any such person would expect to see the a narrow bandwidth when attaching a 600 Ohm generator to a SUT designed for a 3 Ohm - 6 Ohm generator.
You should not expect any usable results in that case so providing any kind of conclusion that the SUT is "flawed" or of "poor design/poor technical quality" assuming that you will get any opjective results from a completely flawed measuring methodology is approaching the level of slander and is certainly misinformation only - and that is my point when critizing this "review".

There is no such thing as a low output Moving Coil cartridge with a 600 Ohm generator and this is where it all does wrong in this "review". Low output Moving Coil cartridges are in the range of 2 Ohm generators to some approx 40-50 Ohm generators (and the higher generator impedance the higher output voltage from the cartridge). Using a 600 Ohm generator will be more representative of a Moving Magnet/Moving Iron cartridge - and those are not used with a SUT so again the methodology is this "review" is flawed - not the product tested

The whole setup is made completely wrong and hence should never have been published (and should be deleted for being what is is - total misinformation that results in bashing a product that should indeed be working perfectly according to manufacturers specifications when using the correct methodology).

All that said - it is not a big surprise that there are a lot of confusion out there about Moving Coil cartridges and SUT's. The manufacturers themselves has most certainly contributed to this situation themselves. An example: When Ortofon is specifying below 10 Ohm they are in fact NOT talking about a 10 Ohm "load impedance" (or "input impedance" if you like) for the SUT- but are talking about below 10 Ohm GENERATOR impedance of the cartridge itself. This is of course very confusing for probably 99,5+ percent of all people (as it does indeed defy the logic otherwise normally used in audio) so making the mistakes that many does when considering SUT's is not surprising.

(So I am certainly NOT "bashing" Amir for making the mistakes that he did - I'm just a bit dissapointed that an otherwise quite clever guy makes such "beginners errors", but at the same time understand that - most likely - growing up in the "digital age" will influence backwards experiences that probably has never been part of any younger engineers curriculum now a days . The same by the way applies to old dudes like I myself - we may not be spitzenklasse when it comes to the latest digital technologies/methods either - so I choose to conclude that the mistakes made here are mostly due to generations and experiences.)

Any transformer has to do with the winding ratio between primary and secondary connections - and that means that a SUT with some approx. 30dB gain does most certainly not represent a 10 Ohm "load" (og "input impedance" if you like). As someone did mention in the discussion above - a Moving Coil SUT is NOT designed to "impedance matching" (or maximum power transfer) but designed to achieve a desired GAIN for a low output Moving Coil cartridge.
Unfortenately SUT's are not interchangable or universal devices that can be combined with any Moving Coil cartridge - and at the same time expecting optimum results in any random combination of cartridge and SUT is not attainable. To make things more complicated to comprehend is that it is in principle possible to combine virtually any Moving Coil cartridge to a Moving Coil head-amplifier (being solid-state or vacuum tubes - or even suitable OP-AMP's, but it would be a similarly "wrong" conclusion to make if saying that then head-amplifiers are "better" than SUT's. Personally I have never heard a head-amplifier that is as good as a "perfect" matched cartridge and SUT, regardless of pricetag - but that is also a matter of personal taste, not necessarilly a matter of objective conclusions?!?).

Buttom line: This review is flawed - not the product tested. Hence the "review" should be deleted in all fairness to both Ortofon as well as readers of this forum. Just look at the wotes where a huge portion of people (after having been totally mislead by this very poorly performed and totally wrong measurements) are agreeing to the Ortofon ST-70 being a "poor product"... No, no, no - please get it - the only "poor" thing here are the wrong CONCLUSIONS made by Amir and most others in this discussion. This forum does not deserve to be a source of Fake News - so please do the only right thing; Delete this wrongful review in order to keep up our confidence that we can trust the conclusions in other reviews at ASR... (Remember one "wrong" takes a hundred "rights" or more to redeam the "wrong".)

 

[Hayabusa]

As already mentioned, the key fault here is that the "wrong" generator impedance has been used in this (hence useless and totally unfair) "review".

You may assume that using a 3 Ohm generator (impedance or resistance for that matter) will indeed provide measurements that will be (much more) representative of the Ortofon ST-70 SUT real-life performance in regard to amplitude response.

The measured result in this "review" are not really that surprising - if you go back reading SUT reviews from say 45 years ago it has been proven numerously times that e.g. doubling the generator impedance will result in a narrowing of the bandwith of the SUT. So when Amir is using 20 Ohm "generator impedance" it is really not a "poor result" seeing somewhat 3dB-4dB drop of the amplitude response at low/high end of the spectrum when the SUT is designed for a 3 Ohm-6 Ohm generator impedance - in fact this is quite spot-on what you should expect in that case. So the measurement is in its-elf not necessarilly "wrong" as such - it is the CONCLUSIONS that Amir provides from his (totally wrong) methodology that are indeed (very) wrong

Then continuing out of the path of this very wrong methodology and perform a measurement of a SUT designed for 3 Ohm - 6 Ohm generator impedance with a generator impedance of 600 Ohms only demonstrates having misunderstood (low output) Moving Coil cartridges and SUT design. It is no surprise that such "mismatch" will result in the shown non-usable amplitude response with a 600 Ohm generator impedance but again the measured result should be expected by anyone having knowledge about cartridges and SUT's as any such person would expect to see the a narrow bandwidth when attaching a 600 Ohm generator to a SUT designed for a 3 Ohm - 6 Ohm generator.
You should not expect any usable results in that case so providing any kind of conclusion that the SUT is "flawed" or of "poor design/poor technical quality" assuming that you will get any opjective results from a completely flawed measuring methodology is approaching the level of slander and is certainly misinformation only - and that is my point when critizing this "review".

There is no such thing as a low output Moving Coil cartridge with a 600 Ohm generator and this is where it all does wrong in this "review". Low output Moving Coil cartridges are in the range of 2 Ohm generators to some approx 40-50 Ohm generators (and the higher generator impedance the higher output voltage from the cartridge). Using a 600 Ohm generator will be more representative of a Moving Magnet/Moving Iron cartridge - and those are not used with a SUT so again the methodology is this "review" is flawed - not the product tested

The whole setup is made completely wrong and hence should never have been published (and should be deleted for being what is is - total misinformation that results in bashing a product that should indeed be working perfectly according to manufacturers specifications when using the correct methodology).

All that said - it is not a big surprise that there are a lot of confusion out there about Moving Coil cartridges and SUT's. The manufacturers themselves has most certainly contributed to this situation themselves. An example: When Ortofon is specifying below 10 Ohm they are in fact NOT talking about a 10 Ohm "load impedance" (or "input impedance" if you like) for the SUT- but are talking about below 10 Ohm GENERATOR impedance of the cartridge itself. This is of course very confusing for probably 99,5+ percent of all people (as it does indeed defy the logic otherwise normally used in audio) so making the mistakes that many does when considering SUT's is not surprising.

(So I am certainly NOT "bashing" Amir for making the mistakes that he did - I'm just a bit dissapointed that an otherwise quite clever guy makes such "beginners errors", but at the same time understand that - most likely - growing up in the "digital age" will influence backwards experiences that probably has never been part of any younger engineers curriculum now a days . The same by the way applies to old dudes like I myself - we may not be spitzenklasse when it comes to the latest digital technologies/methods either - so I choose to conclude that the mistakes made here are mostly due to generations and experiences.)

Any transformer has to do with the winding ratio between primary and secondary connections - and that means that a SUT with some approx. 30dB gain does most certainly not represent a 10 Ohm "load" (og "input impedance" if you like). As someone did mention in the discussion above - a Moving Coil SUT is NOT designed to "impedance matching" (or maximum power transfer) but designed to achieve a desired GAIN for a low output Moving Coil cartridge.
Unfortenately SUT's are not interchangable or universal devices that can be combined with any Moving Coil cartridge - and at the same time expecting optimum results in any random combination of cartridge and SUT is not attainable. To make things more complicated to comprehend is that it is in principle possible to combine virtually any Moving Coil cartridge to a Moving Coil head-amplifier (being solid-state or vacuum tubes - or even suitable OP-AMP's, but it would be a similarly "wrong" conclusion to make if saying that then head-amplifiers are "better" than SUT's. Personally I have never heard a head-amplifier that is as good as a "perfect" matched cartridge and SUT, regardless of pricetag - but that is also a matter of personal taste, not necessarilly a matter of objective conclusions?!?).

Buttom line: This review is flawed - not the product tested. Hence the "review" should be deleted in all fairness to both Ortofon as well as readers of this forum. Just look at the wotes where a huge portion of people (after having been totally mislead by this very poorly performed and totally wrong measurements) are agreeing to the Ortofon ST-70 being a "poor product"... No, no, no - please get it - the only "poor" thing here are the wrong CONCLUSIONS made by Amir and most others in this discussion. This forum does not deserve to be a source of Fake News - so please do the only right thing; Delete this wrongful review in order to keep up our confidence that we can trust the conclusions in other reviews at ASR... (Remember one "wrong" takes a hundred "rights" or more to redeam the "wrong".)

Ok, short answer: yes a resistive 3ohm source would work well

 

[Hayabusa]

Ok, short answer: yes a resistive 3ohm source would work well

Btw your (correct) answers look like AI rambling very repetitive and too elaborate haha

 

[Gibsonian]

Hmmm, I have indeed enjoyed Amir's skilled digital equipment reviews - but this one is a disaster that should be deleted as it is the single most un-scientific and totally misleading review of a Moving Coil SUT that I have ever read in my 63 years on this Earth.

Unfortunately Amir and many commenting this "review" of Ortofon ST-70 demonstrates absolutely no understanding for moving coil cartridges and less about audio transformers. Hence the best is indeed simply to delete this horrible blunder from an otherwise excellent site with so many great reviews.

A very few comments demonstrates some proper knowledge about this domain - and the most important point is that a SUT is designed to be loading an impedance - not a resistive "source". Measuring a SUT with a DC multimeter is an absolute No, No, No (and only something an ignoramus would do).

Any Moving Coil SUT is designed to support a rather specific range of Moving Coild Cartridges - Not "any" Moving Coil cartridge. Ortofon SUT's are designed for Ortofon (low impedance - not low resistance ) Moving Coil cartridges - and there are absolutely no low-output Moving Coil cartridges that has a source "load" of 600 Ohms.

Please Amir - you who otherwise are providing excellent no-nonsense information on digital equipment - please do yourself and your (devoted - I included) readers the favour of actually understanding exactly how a SUT is working and why before spreading such misinformation as in this "review". I am truly dissapointed in seeing especially you providing such misinformation and demonstrating lack of scientific knowledge and knowhov in regard to Ortofon (and SUT' in general).

As a Dane who's been involved in audio for decades - and having friends that used to work in Ortofon's R&D back in the days when analogue was the "top of the pops", I can assure you that the extremely poor results that you measured on the Ortofon/Lundahl SUT is not stemming from incompetence at Ortofon/Lundahl but from your own mistakes. Load any Ortofon SUT with a real life Moving Coil cartridge and you'll get a perfectly flat amplitude response within the working zone of an audio transformer. The problem here is that you have applied the wrong method to your attempt to try to measure on a device that you demonstrate not to understand - and that is of course no shame as no-one can be blamed getting things wrong when not having done the proper research before making this (sorry to say it) blunder of misinformation public.

Be aware that I am NOT trying to be blaming your skills in general - just pointing out that you made a huge mistake in this case.

Please do NOT repeat any SUT reviews before you have made sure that you apply the correct science and methodolog to the problem at hand - or please stick to what you do so excellently, work in the digital domain where your skills demonstrate overwhelming good knowledge and knowhow
I am sure that is has not been your intention to provide such misleading and wrong information - especially not as you provide no-nonsense and superior scientific reviews and measurements in digital equipment. Perhaps this blunder has to do with age? I guess that you are perhaps not as old as I and hence do not have lived much when analogue audio was the only option - and the old dudes like I myself that's been around, we are often in need of removing our shoes so we may crumble our toes due to all the misinformation that younger people spread around about analogue techniques. So kindly understand that you're excused for makin a mistake - everybody can, and will do that at sometimes - this one is just the time where you made a mistake. But it can be corrected - and the best way is deleting the entire review as it is misinformation. Applying the wrong method results in the wrong conclusions - no shame but no honour either.

(I think that anyone should be pleased that here in Denmark - where Ortofon is at home - we are very relaxed people. Had Ortofon been a US-based company, 50 angry lawyers would have suied you for slander and that that may be even worse )

For the poor souls that be mistake comes to read this totally flawed review - please seek information otherwhere when it comes to SUT's and please see (correct) measurements done with the correct methodology elsewhere because all you find here is misinformation... :-(
There are a few posts around in this long sad misunderstood discussion where some correct measurements of SUT's are shown. Rest asure that the Ortofon ST-70 will do even better than those shown here.

My credentials: Extensive experience with different SUT's such as Ortofon STM-72, Ortofon T-20, Ortofon T-30, Ortofon Verto (that by the way is also based upon Swedish Lundahl audio transformers so quite similar to the ST-70 in concept), Ortofon T-2000 and Ortofon T-3000 - and let me tell you "non-analogue" people that the T-2000/T-3000 are absolutely superior both in sound quality as well as scientific measurements and well worth their whopping 2.000 USD retail prices back then (but of course those are not for anyone as 2.000 USD is indeed a load of money by any standard, and less can indeed to it for most audiophiles - even audiophools ).
The very basic requirement: Load the SUT with the correct Moving Coil cartridge (in the Ortofon case 3 ohm impedance - NOT 3 ohm resistance).

I also see a lot of ignoramuses bashing analogue audio in this discussion - and fine, you do not personally like analogue - nor harm in that and nothing wrong with that but going to the extend of providing totally misleading information and with one hand bashing out anyone being an audiophile as "religious" and then with the other hand being exactly merely "religious" does really not suit this otherwise excellent place for no-nonse scientific information (in general but not in this particular incident).
If you think that digital is the "only way" to go - fine by me. If you think that analogue is the "only way" to go - fine by me. But you'll be equally wrong in both cases;
Let's be honerst there is no such thing as a perfect solution that is "digital only" or "analogue only" - use the correct domain when trying to fix a problem that belongs to either the digital domain or the analogue domain.

Looking forward to seeing this misleading and wrong review being deleted - and looking forward to read a lot more excellent reviews on ACR in the domains where Amir's knowledge shines as a positive light.

Thanks for the explanation. I own and use a Lundhal coiled SUT and my ears though old I think would not enjoy a performance like was presented in the review. I lack the technical expertise to explain the issues with the measurements made though. It is a wonderful sounding device actually. A real keeper.

 

[Hayabusa]

Btw your (correct) answers look like AI rambling very repetitive and too elaborate haha

I am wrong!

 

[Davey]

@LHI-6262DK
You are a couple months late to the party and it seems you joined the forum just to flame Amir.
I'm sure Amir is no longer subscribed to this thread, so if you want him to take down the review I suggest you contact him directly.

 

[Garry]

@LHI-6262DK
You are a couple months late to the party and it seems you joined the forum just to flame Amir.
I'm sure Amir is no longer subscribed to this thread, so if you want him to take down the review I suggest you contact him directly.

Why are you suggesting he is flaming Amir?