Recent content by Risto_H

Shure V15 Type IV MR / CA-TRS-1007 (B) The same measurements as above but with Shure MR needle: Notes: Turntable: Denon DP-51F MR needle is 40 years old but estimated use is 100 - 150 hours so should be in a pretty good shape VTF: 1.5 g with damping brush in use Phono stage: RH_RIAA 3.0...

Shure V15 Type IV / Jico SAS-B / CA-TRS-1007 (B) As promised, measurements with correct settings for full 96 kHz sampling rate and two different capacitance settings (see post #852 for my original attempt): Lower load capacitance (the lowest setting of my RIAA): Notes: Turntable: Denon...

I have noticed in this thread that in many cases you get very different crosstalk graphs from left to right and right to left. To make it more difficult to assess if the problem is in the test record or cartridge installation, results seem to vary from system to system and also between test...

@mackat very nice results. Interestingly in your measurements we don't see the the azimuth related crosstalk problem. I wonder if different issues of that test record behave differently in this respect? I will pay more attention to the side of the test record next time...

Yes, not bad and the FR is quite good. I will repeat the measurement though since I had not figured out that I have to adjust Windows sound device settings as well to capture with 96 kHz. I will do some different capacitances and the original MR needle as well.

Yes, I realize that and I did set the audio settings in Audacity to use 96 kHz sampling but now I'm not sure if it really did that correctly. There really is no distortion data past 10 kHz in my graph. I guess the combination NI Komplete Audio 2 + Audacity is not the most common here and I'm a...

OK, thanks. Then it is quite weird how I got a normal looking output when I did that first try. I'm sure I did not swap the channels for file 1 (R)... Nevertheless, I know now how to perform the recording and .wav file processing correctly!

I can do a measurement with capacitance set to about 170 pF since my RIAA has minimum of ~50 pF and I estimate the cables to add 120 pF. This change has a small effect but as far as I can see, the setting I used for this measurement seems to be very close to optimal. I did one measurement with...

Shure V15 Type IV / Jico SAS B It took me a few attempts to understand how the TRS-1007 was recorded and how to mitigate that with the script settings (riaamode = 2, riaainv = 1). I also found that if you record with 96 kHz sampling, the sample with Right channel must be channel swapped but...

In my opinion, there are other pretty good methods to suppress problems caused by warped records in addition to this. I'll just make a short list (not in any particular order) here: Damping brush added to the cartridge like Shure did with a few models Servo tonearm that tracks the surface...

Well, I prefer full SMD design myself and I also hand solder them on 4-layer boards, no problem at all and don't have to cut those extra wires after soldering. :) But THT design has its benefits too so it is more a matter of preference than anything else. I can of course say that fighting RF and...

Having designed a couple of phonostages myself, I find this very interesting. I like the reasoning behind your choices and the end result is also very impressive. Still, I took a quite different approach. This is the power supply part of my RH RIAA 3.0. First of all, almost all the components...

Well, here's the SINAD graphs of my RIAA from both MM and MC inputs and lowest gain setting. I use 5 mV input signal for MM and 0.5 mV for MC (as used in the reviews here). I find < 40 dB of gain something that would not be normally needed with MM and that's why the four selectable gain steps...

Yes and the noise floor follows approximately the shape of RIAA equalization unless there's some sort of anomaly that bends either high or low frequencies.

Yes.