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biosailor

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About biosailor

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    Basel, Switzerland

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  1. Just bought a tiny Little Pro-Ject Pre Box S2 Digital for serious headphone listening. A little add-on to my Devialet system that has no headphone out. Very nice listening when working at my computer. It‘s amazing what they pack into these tiny boxes!
  2. Fantastic album, didn’t know this one before, so thanks for the tip!
  3. One of Herbie Hancock's lesser known oeuvres, yet, very good, just as the film!
  4. An interesting guitar man, and an even more interesting album: recorded when Lenny Breau was only 20 years old and the record was forgotten for more than 40 years! Great music!
  5. Share your hobbies beyond being an audiophile: I am afraid I have to deviate a bit from the topic 😳. Besides sailing, mountaineering, snow shoeing, ski touring and all that, there are times when the weather does not permit any of the outside hobbies. Again, being a recently retired scientist, I cannot stop my mind not to think along science terms. During my professional life, I used to use a lot of scripting in R to statistically validate our data. The last few years I pondered if MatLab wouldn't be the more suitable software for our purpose, but I never had the time of getting to know it. Now that I have time, I am making my first steps into MatLab by analysing my precious audio files at hand. The first file I had a look at is Bill Evans' 'You go to my Head', the legendary concert in the Black Forest recorded in 1968, but released only in 2016. A marvel of a concert! I first loaded the file, an AIFF file/96 kHz/24 bit into MatLab and tried to display the left and right channel waveforms separately. Voilà, after some trying, and with a lot of on-line forums, I managed to display the two channels separately (see screenshot). It's fascinating playing with these audio files. I do not understand all the details behind it, but I'll go on with MatLab to do some further spectral analysis, etc. Real fun for rainy days! The code, if someone is interested, is very simple: >> [y,fs] = audioread('You_Go_to_My_Head.aiff'); % y = samples, fs = sampling frequency >> l = y(:,1); % left channel >> r = y(:,2); % right channel >> t = linspace(0, length(y)/fs, length(y)); % linspace creates the time vector >> figure; >> subplot(2,1,1); plot(t,l, ‘b’); title('Bill Evans/You Go to my Head/Left Channel'); xlabel('time(s)'); ylabel('Amplitude'); % plots the left channel in blue to the top panel >> subplot(2,1,2); plot(t,r,’r’); title('Bill Evans/You Go to my Head/Right Channel'); xlabel('time(s)'); ylabel('Amplitude') ;% plots the right channel in red to the bottom panel
  6. Absolutely, safety first!!!
  7. Haven't tried the other rails too, except that I tried the 19 V rail with my Nucleus and it didn't power up the Nucleus. So my guess is, all rails are dead. In the meantime, I settled things with Larry. I send the power supply back and he'll refund what I paid. The chapter is closed!
  8. So, I sacrificed one XLR/2.5 mm cable, and cut the barrel plug away, exposing two cables, a white and and red one (see attached image 1). I stripped the two cables to expose the wires, and wound them around the individual probes of my voltmeter (image 2). I then set the A regulator to 12 V out, switched the power supply on (image 3). As you see, the voltmeter reads 0.00 V, so no output voltage at all (see image 4). Again the test with a 9 V battery reads 9.46 volts, so my voltmeter works well.
  9. Well, all good measures, but what a client needs is some easy visual indication that the unit is on and delivering voltage, say in the form of an LED on the fron plate and some internal LEDs
  10. Fuse looks OK, although I can replace it. But would need fuse specifications. I don't have different cables, so I can't try (yet). I already thought about measuring the output voltage on the XLR pins. Carefully, yes, of course 🙄!
  11. I measured the voltage at the XLR/2.1 mm outlet and my voltmeter shows 0 volts, same when switching to the 3.5 V supply. Being a trained biochemist, I am not sure if I properly handle a voltmeter. I did test my voltmeter with a 9 V battery first, and it shows 9.36 V. So I guess the voltmeter is fine. Nevertheless, as a customer, I do not feel inclined to do trouble-shooting for a product I paid for. I expect from a QC department (if they have one at all) to check the product and provide warranty that their product is functioning properly. I am opting for sending the unit back for getting a refund. I am fed up with HDPLEX!
  12. Larry‘s help is non-existent. A sparse line of an e-Mail I get. HDPLEX is a nightmare! We as customers should be warned, and protected, from such phoney companies as this one!
  13. Thanks for the hint, will look into it. BUT: delivering a unit with obvious faults in assembly tells me everything about HDPLEX‘s QC: non-existent! The whole experience is disappointing.
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