intactaudio

Responses from intactaudio

Discuss The Viv Lab Rigid Arm
Raul    The underhung just has not that "perfect "equilibrium Can you provide a list of underhung arms you have experimented with?   dave  
Discuss The Viv Lab Rigid Arm
I guess the questionable part is whether the bearings being aligned with an offset headshell is going to make the rest of the experiment invalid? My take on it is Just Do It....I  think the flaw here is without actually doing the test,  to assu... 
Discuss The Viv Lab Rigid Arm
  Hey Lew, Will you accept the possibility that due to geometry differences (overhung vs. underhung) different metrics may dominate the sonic behavior of each?  I experimented with this a bit last year and found that TAE dominates the overhung... 
Step Up Transformer with Moving Iron Cartridge?
the key with LOMI and SUT's is the LC resonance gets to be too close to the top of the audio band for my liking.   assuming 2.75mHy and a 150pF load the 1:10 will reflect back 15nF which will resonate with the 2.75mHy @ 25kHz.  The typical 47kΩ lo... 
Step Up Transformer with Moving Iron Cartridge?
In addition to what Lew said, The LOMI carts still have appreciable inductance and the step up ratio needs to be kept low (generally under 10) to avoid issues at the top end of the audio band.     dave  
Hagerman Piccolo Zero: New transimpedance head amp
The thick wire that nets a low DCR also restricts movement so from the cartridge to the din connector is typically 12" of #36 or #37 which puts you at about 1/2Ω per foot.   I have an early Schick and a Schröder and both are in the 1Ω range from p... 
Hagerman Piccolo Zero: New transimpedance head amp
It should be noted that tonearm wiring DCR should be added to the internal cartridge impedance for your calculations.  This can often be 1-2Ω which becomes substantial in relation to the super low impedance cartridges. dave    
Miracle by Joseph long on Dynavector XX2MKII cartridge
I have had a few conversations with Joseph about the finer points of retipping and would not hesitate to recommend him.  He is a genuine problem solver and the stories on his instagram page lay out his capabilities. dave https://www.instagram.co... 
Step Up transformer
this is one of those ideas that works really well In the simulated world where an ideal  2:1 stepdown nets a 2X increase in output voltage.  Real world reality of greater than 0 input Z of the current stage and DCR's of the windings makes the actu... 
Step Up transformer
I have the VDH Grail SB transimpedence (current) phono stage to drop the noise floor, not sure if I have to purchase another phono stage (voltage) in order to try a SUT. a SUT will not work with the grail.  Of morbid curiosity, a step down tran... 
Discuss The Viv Lab Rigid Arm
the elephant is every other thing about vinyl playback that obscures the ability to measure minor changes in THD as a result of TAE.  Attempting to assign an accurate and consistent FOM to TAE from THD has thus far proven to be an effort in futili... 
Discuss The Viv Lab Rigid Arm
Hey all, Another problem I am having with this discussion is the term 'distrotion' is being used way too generically.  I believe that the original use of the term by Löfgren etal was referring to THD caused by having a HMA (horizontal modulating ... 
Discuss The Viv Lab Rigid Arm
@mijostyn  How do you know you actually have the alignment you say you do?  Here is a test report of three random samples of stylus assemblies from an order I placed.  This is representative of the best numbers I have seen thus far and are kind o... 
Discuss The Viv Lab Rigid Arm
The fact that the Viv arm sounds good to some people speaks to the lack of sensitivity our ears have to the distortion created by zenith error. It is well made and trick which helps.  @mijostyn   While your supposition above seems plausible, I ... 
Discuss The Viv Lab Rigid Arm
@rauliruegas Well, something to share with you is that I just finished my listening tests making on purpose a 2mm overhang error and other test changing only ( what more or less permits the headshell ) the angular offset. I think you need to do...