intactaudio

Responses from intactaudio

Mono Cartridge Question
@lewm   It may be that I own very few mono LPs that are old enough to require 1.0mil. The 1.0 mil for the early monos assumes a conical profile and many of the advanced profiles play the early mono's perfectly. dave    
SUT - electrical theory and practical experience
@holmz ​​​​​​ the CBS STR-112 has a 1kHz square wave for the test you propose but be warned the results of this test from a cartridge is not for the feint of heart. And yes as you suspect due to the riaa filter the actual cut of the track appears... 
SUT - electrical theory and practical experience
@rauliruegas  So, Dave hopefully you can share your know-how and experiences about. All I can give is my subjective opinions from my experiences comparing the myriad of options out there.   In my system the SUT's are always silver wire on 80% ... 
SUT - electrical theory and practical experience
@drbond  from rothwell... In order to make this transformer match the cartridge with a load impedance at the primary of 5 ohms, a load on the secondary of 6480 ohms could be employed instead of the 47k normally found on an MM phonostage. Lets... 
SUT - electrical theory and practical experience
People try to lump all kinds of technical truths into simple rules of thumb which then become the norm. After being accepted, the underlying truths these norms are built upon tend to get lost.  The three main things that need to be considered when... 
SUT - electrical theory and practical experience
@alexberger  I use 20 Ohm input (26dB, 1:20). The phonostage has overload points - (1% THD+N) for the 834P were 69.2mV at 1kHz, 260mV at 20kHz, and 7.85mV you seem to have a frequency number missing from the above since you have three voltages... 
SUT - electrical theory and practical experience
@o_holter  I tested a SUT with the Io and did not like it - sounded good at first but then I noted that it subtracted from the purity, the sound became more hi-fi, for lack of a better word. But that was with a mid level SUT years ago and things... 
SUT - electrical theory and practical experience
@rauliruegas  Btw, @intactaudio  : you capacitance parameter of 80pf coukld be not real to make SUT measurements as the 300k load. as stated in the text you pulled the above numbers from, those are the actual values of the referenced phono sta... 
SUT - electrical theory and practical experience
Whether a cartridge is a 'voltage' or 'current' generator simply comes down to the load you present it with.  Make the load an open circuit (volt meter) and it will deliver max voltage and essentially 0 current.  Make the load a short circuit (amm... 
SUT - electrical theory and practical experience
@rauliruegas  I should be sure you have that RIAA deviation already measured and maybe you can share with us and your customers. I'm hesitant to give you a measurement which you will certainly turn into a cudgel to use on me in the future but ... 
SUT - electrical theory and practical experience
@rauliruegas  Blindly parroting frequency numbers without clear designation of the related decibel level is an effort in futility.  In looking at the 3-200kHz number of the Technics you reference (SH-305MC) there is no designation of the attenuat... 
SUT - electrical theory and practical experience
@rauliruegas Btw, could be interesting that your friends can ask to EMIA its measured FR due that even that exist audiophiles that just do not care about that kind of measure is really of critical importance and the manufacturer just " dead sil... 
Field coil dava cartridge
@rauliruegas     you are rigth, the 12" against a 10" EL tonearm in reality makes almost insignificant " improve " in tracking error. Using Löfgren A alignment IEC: for someone who insists on 0.1dB riaa accuracy for hi-fi, you sure seem to ha... 
What is the “World’s Best Cartridge”?
@frogman  I know and am confident in what I hear. well put!  I often find that those who rely heavily on the objective are incapable / uncomfortable forming a consistent subjective opinion.  I am by no means suggesting that the objective has n... 
What is the “World’s Best Cartridge”?
@mijostyn  In order to fool the human ear you only need a 0.3 dB difference in volume. do you have a reference on this?  I know the origin of the decibel scale is based on 1dB being the smallest difference in level detectable by the average pe...