Always the cry of the 'practical' man!vynuhl.addict said:
Let us assume I tried it and liked it. What does that demonstrate? Simply that I prefer a little treble boost i.e. a fixed tone control. I note that people are promoting this change on the basis that it is 'technically correct', but then switch to 'we prefer it' when its technical correctness is questioned.
Interestingly, it is not that long ago when people were criticising non-inverting active RIAA stages because they accidentally included an HF boost. Now it is an advantage? How fashion changes!
dp96,
We are talking practical wih vinyl, with very well known hf losses 🙂. Accuracy per se my friend is something different to everyone. Show me a mm cartridge that doesn't roll off around 10k, let alone a MC that doesn't Boost the highs around 10 k. Ortofon cutting rolls off around 40khz to protect them. I've designed all of my gear with the aim towards minimal to almost no phase shift within the audible band, I can hear it surprisingly, along with electrostatics that have extreme phase linearity, and if it's audible it's audible 🙂. I was skeptical, at first, but there is a rightness to the "sound". Though, I still suggest you try it, that is unless your ears only contain probes 😀
Colin
We are talking practical wih vinyl, with very well known hf losses 🙂. Accuracy per se my friend is something different to everyone. Show me a mm cartridge that doesn't roll off around 10k, let alone a MC that doesn't Boost the highs around 10 k. Ortofon cutting rolls off around 40khz to protect them. I've designed all of my gear with the aim towards minimal to almost no phase shift within the audible band, I can hear it surprisingly, along with electrostatics that have extreme phase linearity, and if it's audible it's audible 🙂. I was skeptical, at first, but there is a rightness to the "sound". Though, I still suggest you try it, that is unless your ears only contain probes 😀
Colin
Andy,
Thanks for your application 🙂. For those inquiring if any, :/, I weighed the general frequency response against the cd equivalent, while there is much to speak against cd sound it is accurate frequency response wise 🙂. Dp96, as a practical man as you say I can deduce your not a music connoseur 🙂. I offer no apologies, and welcome to Doug Selfs world :/.
Colin
Thanks for your application 🙂. For those inquiring if any, :/, I weighed the general frequency response against the cd equivalent, while there is much to speak against cd sound it is accurate frequency response wise 🙂. Dp96, as a practical man as you say I can deduce your not a music connoseur 🙂. I offer no apologies, and welcome to Doug Selfs world :/.
Colin
Most of them.
http://www.diyaudio.com/forums/loun...ch-preamplifier-part-ii-1226.html#post4218832
DF96, see? We're already up to #3, you just don't like music.
I once had a boss who had a stock phrase. Like all bosses he sometimes asked us techies to do something which couldn't/shouldn't be done, or stop doing something we considered essential. When this happened we would explain to him why it was not possible/desirable to carry out his wish. As a former engineer he could at least partially understand our concerns, but he would always say "Don't confuse me with facts!" with a big grin on his face.
People on here sometimes say DCMWF without grinning.
The probes in my ears were left there by aliens. Since then I have been unable to enjoy music. The plus side is that I no longer need to use an oscilloscope.
People on here sometimes say DCMWF without grinning.
The probes in my ears were left there by aliens. Since then I have been unable to enjoy music. The plus side is that I no longer need to use an oscilloscope.
It is fiction. Douglas Self has refuted this myth in his Small Signal Audio Design. There was never any such pole, in Neumann cutters or anywhere else.
Since this originally referenced the VSPS, I should like to update this thread with the news that that since Alpuy tried removing the AW mod from his VSPS and reported that more pleasant, greater emphasis on bass, a little more midrange and since the phonoclone never used it anyway, it was in my mind since a while back to officially remove it from the VSPS.
I've since had independent confirmation of what Alpuy concluded, and redone the VSPS board to change the RIAA accordingly. I've already propagated the changes to the dual-mono VSPS200 and 400 boards. The Stereo VSPS can be modded easily to remove it: just short over R3. Ideally R4 should be 110k and R5 768k though the original BOM values 105k/732k can be kept, the error introduced by keeping the old values is sufficiently small.
All we are talking about at the end of the day is whether people want a very small treble boost applied to their LP playback. I guess for some it might be just the lift they want, but it turns out most people prefer what amounts to at worst a tad of upper treble rolloff or, what is far more likely, just a more balanced signature.
I've since had independent confirmation of what Alpuy concluded, and redone the VSPS board to change the RIAA accordingly. I've already propagated the changes to the dual-mono VSPS200 and 400 boards. The Stereo VSPS can be modded easily to remove it: just short over R3. Ideally R4 should be 110k and R5 768k though the original BOM values 105k/732k can be kept, the error introduced by keeping the old values is sufficiently small.
All we are talking about at the end of the day is whether people want a very small treble boost applied to their LP playback. I guess for some it might be just the lift they want, but it turns out most people prefer what amounts to at worst a tad of upper treble rolloff or, what is far more likely, just a more balanced signature.
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