@PS Audio PLEASE bring back this series, I'm dying to learn more! Darren is an excellent teacher and I'd love to learn more about building my own phono stage!

Excellent! 👏👏👏 It's refreshing when a company treats their audience with such respect. So many high-end audio vendors take the tack of "the customer wouldn't understand." Thank you PS Audio for reinforcing the reality that your and many other high end proprietors' value lies in being a Swiss watch maker, not merely in telling time, a skill all should possess.

What's happened to Part 2/3 of the phono preamp

Excellent, well explained Darren. Looking forward to Part 2.

Hi Darren, thanks for stepping up! We appreciate the engineering side of things. I see this is just the start of a whole new video series that can last a long time. Since these are technical subjects please don't dumb it down too much, so that we who are interested can remain interested.

Thanks! Love that you posted this video! When will you be posting part 2?

Nice to see the white board getting some love 😄

that was a good little lecture. enjoyed that. food for thought. hope the next one in this series is as good or better.

Finally videos to engineer minded people are back... Paul did some while ago but is now doing more faq level videos (which are still great) but I sure missed some diagrams explained on a white board. Great stuff!

Very good. I like the technical videos.

This is great. Please make more!

Keep them coming Darren, your diy audiophiles are keenly awaiting 🕺.

Two years and counting! Are part 2 and others ever to see the light of day Darren?

This video was awesome. I haven't done any electronics since college. You have me intrigued.

After getting my BS in computer science and engineering (sw & hw), I had the inspired idea of getting a masters in EE. First course, linear integrated circuits (op amps). Open book, open note tests. You wouldn't think, given how easy op amps are to use (they are easy, and you can do some magical things with them, buffering the easiest, inversion a close second, amplification a close third, then integration, differentiation, filters...), but it was the hardest course I ever took. Spent 40 hours/week just doing the homework for that one class. Dissuaded me from continuing on with the masters. Major props to the EEs.

Thanks,I'm an electronic tech nice to see a little more circuitry.

OH, I love it....more , more.....!

great video! keep 'em coming!

Great video showing how you can go shopping in DigiKey for parts and Amazon for tools and soon have an audiophile phono amp for the parts cost of a BigMac.

This is good stuff! Darren sounds a little nervous, but he is a damn good teacher. I can't wait to see the next video.

There was definitely something special about P.S. Audio's approach to design that in 1979'ish (in my & many's opinion) made the quietest & best sounding phono-preamp on the market for under £1000 (equivalent to £"loads" today) in their 4.5/hi-current PSU preamplifier which like the Stellar, was fully discreet in it's signal path with 15'ish trannies on each channel. (when vinyl was king & a preamp's phono-stage was the deal maker or breaker) I mostly run a fully tubed 2-chassis phono-stage with step-up trannies but i've heard enough about the Stellar now to re-focus my future upgrade possibility, into (somehow?) trying and possibly liking & buying a Stellar because fully tubed phono-stages are not the quietest, esp' on m.coils, at least in the price-band i could afford. (p.s. those older circa' 1980's P.S. Audio Phono-preamps make dirt-cheap s/h phono-stage bargains & i don't think today's stages could beat them for under a grand after recapping it's psu)

This is so great :-)

I called the other day. I am looking for a phono stage that can reproduce orchestral strings well. I find that a rarely, rarely, rarely, hear the lower strings with the woody boxy resonance of the G and D strings on violins, C and G strings on viola and 'celli. Haven't heard yours yet.

great,,great

Excellent. Now, where is part 2? ;-)

Bravo, bravo, encore!

Great video Darren, When is part 2 coming?

I’m liking this

Now I'm tempted to build one just for fun!

Isn't it fun to have a short revision of the EE class? Thanks

Great video ! any chance of part 2 ? or Im missing something here ?

Hmmm, Did Nelson Pass stop by and give you guys some guf for not being more involved with the DIY community? Great video, hope we get more like it.

Cool stuff!!!

Nice

You rock Darren - great info! Build my pair of m700's with care this week ;) can you sign them?

When is Part 2 dropping?

I would change one of those resistor to a preset. To nail the target gain precisely

Great video, hope this ends up in a finished and buildable project. You only use a capacitor on the input to reduce RF, what about using a ferrite cores on the input, maybe together with the capacitor, or are there issues with that idea?

You’re headed in a great direction take this one step further to produce PS audios own line of do it yourself kit and schematics a phono stage,amplifiers, per-amps. Like Nelson Pass provides do it yourself kit with the Pass LABS or First Watt class A sound signature at DIYaudio.com PS Audio should become the guru of class D amps ,schematics and kits simplified for the do it yourself or with the PS audios sound signature but just lower wattage version so not to be in direct competition with your own product. Keep up the technical videos as a continuous series like “ Mr. Carlson’s Lab” on KZfaq. “Blue Glow Electronics” on KZfaq who Mark who teaches construction and repair of tube amplifiers. If you can pull off this caliber nation with your superior knowledge of class D amplifiers having a KZfaq channel and a present online in some of the major audio forms with the PS audio signature series for do it yourself first you’ll probably dominate the class D amplifier builds for high end do it yourself kits and remember these consumers some day by the real product when they can afford it or when friends ask them for suggestions that they usually suggest the manufactures amplifiers that they like building from do it yourself kits to friends and relatives or colleagues guaranteed free advertisement and return consumers for your excellent product line.

Oh I know this one! What’s inside a phono preamp? Nougat.

Your block diagram implies a passive RIAA EQ. In your next video you may want to touch on the differences between PASSIVE EQ and ACTIVE EQ done in the output driver feedback loop. The reason being there is much controversy in audiophile circles between passive and active phono EQ sound quality differences - or lack there of? Also note that an active EQ does not need to be OPAMP based either. Many legacy tube circuits also employed active feedback based EQ.

need to do more video's like this how different parts of a system work Paul do you go to the burning amp festival i learned a lot from nelson pass

Does this mean your finally building a phono pre-amp?

It has been awhile for me so be gentile if I am wrong, but isn't the opamp equation a linear scale ? 20log(30) = 29.54dB, I mean it works but it can be confusing if you picked a different gain.

You need 2 of everything for stereo, right?

Hi Darren was a pleasure to see your message on Mike F youtube Channel, Audio planet, i'm am an Electronics Engineer with a Passion For Audio , still trying to find my Dream job at middle age , my Passion for Vinyl/ Audio /CD with a electronics knowledge and hobby from mid 1980's , would love to contact you and have a Chat do you have an E-mail address ? do you on Linked in ?

I would like to have a phono preamp with Balanced output.

I am puzzled, are you using 5% resisters or more likely 1%. Your choice of 3k indicates 5% values, but adding 3.3 ohms to 100 ohms doesn't make sense (5% of 100 ohms is 5 ohms). Why would you want to make the gain so precise that a gain of 31 db is not acceptable.

Weird looking Paul McGowan 🤔 Or is this a very old video 😂?

The audio is quite harsh and clipping often :(

40 seconds in and i can't do it. This guy seems very condescending. I don't like it at all. I miss Paul