intactaudio

Responses from intactaudio

Mono Cartridge Question
@wallytools  Hey JR... I agree 100%...  there is no chance of a conical tracing a purely lateral cut groove without adding a vertical component to the movement.  IF there is no vertical compliance something has got to give and it ain't going to b... 
SUT - electrical theory and practical experience
@holmz  But I’ll need to check the diagram to see if that built-in 1:4 SUT is loaded on the primary or secondary side There are two possible loads that this SUT could have. The unintentional which is the typical 47kΩ input of a MM phono and th... 
SUT - electrical theory and practical experience
@atmasphere   I would agree 100% with you if the only thing loading of a cartridge does is effect the LC resonance you laid out.  I believe loading of a MC cartridge has a dramatic effect on the electromechanical behavior of the cartridge but that... 
SUT - electrical theory and practical experience
@holmz  I am only trying to find a way to load the cart for my 1:4 SUT. This seemingly simple statement is the basis for much of the confusion that exists around SUT's in general.  People feel the need to lump similar things together hence the... 
SUT - electrical theory and practical experience
@rauliruegas  That gentleman that pass away was a tube lover Art made his system choices on what gave him the most musical enjoyment and had a large readership of similar minded people.  If those choices do not align with your measurement-cent... 
Stereo cartrdge now playing mono!!
this is kinda perplexing since I cannot think of a failure mode that would turn a stereo cartridge into a mono one.   The fact that you reversed the phase of the right channel (swapping red and green) suggests to me that you were mischaracterizin... 
Mono Cartridge Question
@solypsa  absolutely....  as long as the cartridge has vertical compliance I'll take an advanced profile every time. dave  
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...