Little Red Bookshelf Speakers

Been a while sorry guys ! Been busy working on Nelson Pass F5 Amplifiers & other Audio related things.

Thought I would post some pics of the progress on my little Red bookshelf speakers ! I did a quick inside the house Measurement the other day and “DAMN” for no crossover or any filter they are pretty smooth. ! ( will post more on that later )

For now a few photos of how they look so far ! I’m very happy with the look’s and color !

Red Book Shelf Speaker Project!

Been working on a design for the last few moths and the CNC’d pieces were finish for me this week !! Excited.

The speaker will use a Ribbon, Neox-2.0 and the 5″ driver is a Sbacoustics SB15MFC30-8 5″ woofer.

The box will be all rounded over corners & painted Chalk Paint red!

I did a project a few moths ago, and really really liked this red paint so im doing another pair of speakers with it !

SMPS & Aleph Mini Progress !

Today’s 2 Project’s Finish soldering on all the SMD Melf resistors for my Stereo All in one SSR board and do some testing. & THEN work on my Aleph Mini Class A project using 2 MeanWell SMPS powersupplies !  I have been working on this for a few weeks now and FINALY got the noise removed on the PSU’s so now I have clean ripple free 25V dc rails :)  VERY excited because now I can work on the next stage of this project !!

SMPS units are Meanwell IRM-60-25 units.

Happy dance !

Qa401 unit, with new 18″ XPS Touchscreen tablet!

New toy ! My old Dell XPS 18″ tablet with touch screen was donated back to me ! Owner didn’t use it so, back it came.

After giving it a clean up & fresh install of Windows 10 pro & activation she was ready to go, but wait, it needed a ton of Dell Firmware updates so I did those too.

The machine is nothing special, just a basic I5 with 6 gigs ram and a 256 gig ssd.

BUT now going to be used for the test becnch since it has a nice big 18″ touchscreen.

Lenovo Server Gets Second PSU!

OH ! man it’s been a long time since I have bought anything for this Awesome Lenovo St550 server of mine. She runs my life and the whole house but I have neglected her 🙁

This spring I will be taking her covers off and giving her a nice blow job !

HOWEVER ! Today I received her new “second” hot-swap psu ! Why ? well, because I have some upgrades for her planned.

Next up, “already ordered” another 64 gigs ram, bringing the total to 128gigs DDR4 2666 ECC ram.

After that “not ordered” second Xeon Silver 4210 spu.

Then, a pcie x16 16 port Raid card, currently only have a 8 port one in there.

SSR V2.0 – Ordering PCB’s

Well, looks like all my hard work that I have put into this project has lead me to ordering Revision 2.0 ! Will be ordering 20 boards to populate a few and test then give a few away for others to use !

Once the new boards arrive & I have a few built, I will do another video and post it on my youtube channel.

Video of me testing V1.0

SSR DEMO & Measurement ! ! – YouTube

My New QA401 Audio Analyzer

YEP ! For Christmas present I bought my lab a new tool ! Almost every year I try to buy a new piece of equipment, slowly building up my equipment pile for the bench. ! Last year was my JBC Soldering Station !

This year we got a new QA401 Audio Analyzer from QuantAsylum ! I have been reading lots about what it can do, not sure how to use this device fully yet BUT that’s the best part, learn and have fun !

QA401 Audio Analyzer – QuantAsylum < I got mine used from a Good friend in Denmark.

I also creating a series of youtube videos on how to use the device from opening to final measurements !

SSR Rev 2.0

Been working on my SSr project over the holidays and when I had downtime at work. I’d have to say 40% just looking at the screen figuring out how to make the board flow nice, look nice, and build nice.

I’m pretty happy with Revision 2.0, it allows to be mounted to a pair of binding posts & also be mounted off board ( oh look I need to add mounting holes ) BUT wait, there is a reason for this, Revision DUAl 1.0 is going to come out soon so, we can wait for that.

Going to order 10 boards soon, then test these, if all goes well, I’ll order more boards and possibly sell kits as blank boards OR fully populated.

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