Bob Katz book “Mastering Audio the art & the science” 2nd ed.
Category Archives: Data
A design on the board
JL Sub-Woofer
Took a look inside a JL subwoofer… quite the coil and suspension system. http://www.jlaudio.ca/home-audio-powered-subwoofers-fathom
JL audio dominates the Car stereo market in terms of driver quality. The salesman said the best line “We learned a lot from our 12 Volt line of products in designing this home theatre sub” so from now on, Car audio will be forever “the 12 volt industry”
Dual Spiders to support the super high excursion of the woofer… simply incredible design
Super cool Philips console

From the sale:
Moving stuff across the country
I most certainly had a busy “reading week”. It started with finishing up a job My brother Mike started. Moving 7 pallets of equipment from my moms garage in Saskatoon. Followed by great visits with Family and friends. I’m sorry I did not get the chance to meet with everyone I had planned to visit with. Things got a little busy in the IT support world and there was so much family to visit!

Three consoles were packaged and palleted up for shipment across the country.

Custom made dollies were built for the two large sections of console frames.
Modules were packed, boxed and palleted. A small fortune in bubble wrap and pallet wrap were employed.
This is the PSU for a console along with a 1″ Studer A80 8 track Recorder that was made transportable.
I’m excited to work on these projects again in my “Spare time”
Stay tuned for updates of what’s happening with this lot. We’re very excited for what’s planned :-)
Balancing and un-balancing simulation
Visualization of what’s on your hard drive
I was introduced to “Disk Inventory X” that displays a visual representation of what’s on your hard drives. Within minutes I identified HUGE files that were plugging up my laptop. The worst culprit is parallels… but I already knew that virus was huge!
By selecting a file, you can reveal it in the finder and see what it’s really doing!
I would recommend checking it out, just for fun!
Ward-Beck Systems Dinner Box 4 – Ready to be soldered – dB-4
Here is the prototype for the dinner Ward-Beck Systems Dinner Box 4 – Ready to be soldered – dB-4
The parts can be quickly ordered here and assembly the simplest DIY project out there.
Soldering and tests to follow!
Ward-Beck Systems “DINNER BOXES” dB-4
Well after some time away, I’ve gotten back to the Dinner Box
The dinner box is a PCB that users can solder EDAC connectors that mate with Ward-Beck Systems Auxiliary modules.
With a standardized 5 PIN XLR power connector, users can simply power up (4) WBS filters and Compressors.
In Addition to power and audio, there is the interconnections stereo linking of the M466 compressors using either M466M OR M467 Noise gate modules.
the dB-4 also allows user to mix and match equalizers: any of the M462, M462A, M462B or M464 Filter interchange seamlessly into this bucket.
A balancing card for M472 eq modules is on the drawing board.
Here is a revised version.
The major change is the addition of XLR connectors… The idea of using a dB25 connector is now optional!
The History of Sound at the Movies
A fantastic and very thorough history of sound recording and playback systems in theatres
48 TB….
Speaker cut in half
Dinner Box – M461
Ward-Beck Systems “DINNER BOX” – dB-4
Working on the new Ward-Beck Systems “DINNER BOXES” dB-4
Because there’s real Meat in it… Because sometimes I skip lunch… Because they don’t serve lunch at 4AM… Because I eat lunch for breakfast…
It’s a backplate to simply wire and power up (4) WBS filters and Compressors. M466, M466M, M462, A, B or M464 Filter. A balancing card for M472 eq modules is on the drawing board too!

Herman Miller Chair repair
My Old Herman Miller wheels were really ruining my floor. This is something you don’t really think about until it’s too late…
I ordered hardwood floor safe wheels for my chair. I really recommend them for any surface… the soft rubber really keeps your floor looking new.

While I had the chair upside down I thought I’d share a mod I do to them. If you’ve spent a lot of time in these chairs you’ll know the KLANG the legs make… to keep that klang down to a minimum I Supper 77 in some scrap acoustic foam to the legs.
Passive HP/LP Filter calculator – More fun with Excel
To better understand the behavior of a Passive Resistor Inductor / Resistor Capacitor I built another excel calculator….
ly
Transistor Man
a whole semester summed up in one drawing
From the Art of Electronics second edition – Paul Horowitz and winfield Hill
An electrical lesson…
Ampex MM800
RLC calculator for components in series
I’ve been calculating a lot of components in series lately for an ECR255 class. I’ve also had to graph them on impedance diagrams and a power triangle.
In an effort to better understand the math I made a calculator for myself. Here is it for you to use and enjoy. If you see any problems please let me know. It was designed in excel 2011 for mac… there WILL be compatibility issues and I hope they’re minor.
How it works:
You can fill int the info you have in the orange boxes. Once the boxes are filled in the calculator should fill in the rest.
If you need to modify anything else, it’s all dependant on the orange boxes. I suggest a goal seek by modifying and orange cell.







































