dB(V)
10 ________________________________________________________ [V]
1.0 ________________________________________________________[V]
0.1 ________________________________________________________[V]
logarithmic divided ===> now the division between the sections is no longer linear.
10 ________________________________________________________ [V]
1.0 ________________________________________________________[V]
0.1 ________________________________________________________[V]
logarithmic divided ===> now the division between the sections is no longer linear.
If we do not want to or cannot take the suspension and fixation (i.e. the damper) of the tongue (cantilever) for responsibility, then all that remains is the rounding of the tip, i.e. the huge, conical diamond. He will rise out of the groove base with higher frequencies - to be cut (scanned) and, above all, towards the center of the circular disk. It glides over the modulation, over the wave. The useful level drops and all kinds of distortion products are happy to exist.
Without an optimized needle cut and reduced mass (due to the acceleration), undistorted treble reproduction up to over 15kHz can be ruled out.
For this reason alone, the transducer is electrically terminated in accordance with the manufacturer's specifications. A comprehensive electrical equivalent circuit diagram (with an extended range of validity) will not be of real use with a conical needle (heavy and large).
#
If there are no (further) questions from the audience, this practical session is now over.
Bye,
HBt.
Without an optimized needle cut and reduced mass (due to the acceleration), undistorted treble reproduction up to over 15kHz can be ruled out.
For this reason alone, the transducer is electrically terminated in accordance with the manufacturer's specifications. A comprehensive electrical equivalent circuit diagram (with an extended range of validity) will not be of real use with a conical needle (heavy and large).
#
If there are no (further) questions from the audience, this practical session is now over.
Bye,
HBt.
AT-VM95-C with Supra24 plus Ruby3
If I have not made any significant mistakes in the manipulation (correction = equalization) of the 96kHz / 24Bit data stream /set, the Ortofon sweep (known test LP), then the FFT confirms the frequency response above 1kHz already determined in the steady state case.
The dynamic picture is therefore almost identical. 14k7Hz < fh < 16k9Hz, i.e. a geometric mean somewhere around 15kHz. So the pickup meets the age-old hi-fi standard flawlessly, and our equalizer preamplifier does too - it's a class above. The spherical diamond tip in undamaged condition is also not an exclusion criterion. Its actual mass is also completely uncritical, it is a joke. It is the entire moving mass, consisting of the adhesive /glue, cantilever and permanent magnets, that is essential.
The groove takes over the grip at the end of the pin (or tip). This grip now moves the stylus (cantilever or tongue) around a virtual (and vertical) reference axis.
This axis moves inwards over time, the radius decreases (of course the circumference, the length on which the modulation, the wave trains can be mapped).
Further inwards it goes, the more the maximum permissible excursion and the maximum signal frequency decrease.
The additional restriction already mentioned is significant solely due to the mass and the damper, the spring /suspension. With a constant force effect, a lower mass can experience greater acceleration - and this is the crucial point for the upper limit frequency of the transducer.
With an MM system, a relatively large mass simply has to be accelerated. And upper cut-off frequencies between 15kHz and 25kHz (mid 19k4Hz) are typical and physical limits.
The cutting engineer cannot cut more than this, and only at the beginning with the largest circumference, the distance. I am still convinced that a steep bandwidth limiting to about 17kHz is usually applied.
It's a gut feeling, an intuition - for 33+1/3 rpm - and the linear downward trend is (clearly) due to the damper and not the sliding effect, pure physics.
#
Incidentally, the sound is flawless, even though the tracking test only revealed undeformed amplitudes of 65µm (315Hz) at maximum. Whether OREAD or Supra24 doesn't matter, both equalizers give pleasure. Even if they somehow sound totally different.
This shall now be my last word,
HBt.
If I have not made any significant mistakes in the manipulation (correction = equalization) of the 96kHz / 24Bit data stream /set, the Ortofon sweep (known test LP), then the FFT confirms the frequency response above 1kHz already determined in the steady state case.
The dynamic picture is therefore almost identical. 14k7Hz < fh < 16k9Hz, i.e. a geometric mean somewhere around 15kHz. So the pickup meets the age-old hi-fi standard flawlessly, and our equalizer preamplifier does too - it's a class above. The spherical diamond tip in undamaged condition is also not an exclusion criterion. Its actual mass is also completely uncritical, it is a joke. It is the entire moving mass, consisting of the adhesive /glue, cantilever and permanent magnets, that is essential.
The groove takes over the grip at the end of the pin (or tip). This grip now moves the stylus (cantilever or tongue) around a virtual (and vertical) reference axis.
This axis moves inwards over time, the radius decreases (of course the circumference, the length on which the modulation, the wave trains can be mapped).
Further inwards it goes, the more the maximum permissible excursion and the maximum signal frequency decrease.
The additional restriction already mentioned is significant solely due to the mass and the damper, the spring /suspension. With a constant force effect, a lower mass can experience greater acceleration - and this is the crucial point for the upper limit frequency of the transducer.
With an MM system, a relatively large mass simply has to be accelerated. And upper cut-off frequencies between 15kHz and 25kHz (mid 19k4Hz) are typical and physical limits.
The cutting engineer cannot cut more than this, and only at the beginning with the largest circumference, the distance. I am still convinced that a steep bandwidth limiting to about 17kHz is usually applied.
It's a gut feeling, an intuition - for 33+1/3 rpm - and the linear downward trend is (clearly) due to the damper and not the sliding effect, pure physics.
#
Incidentally, the sound is flawless, even though the tracking test only revealed undeformed amplitudes of 65µm (315Hz) at maximum. Whether OREAD or Supra24 doesn't matter, both equalizers give pleasure. Even if they somehow sound totally different.
This shall now be my last word,
HBt.
Last edited: