Three Way Evil Design Study

[wkhanna]

Take note padawans, how wisely positioned The Maestro has placed himself.

........ When US CEO is back from travel, there will be another F2F, when boss is out here, including CEO. ....should be a slam dunk, and if it isn't, that's the writing on the wall....

Best of luck with your ‘negotiations’.
One thing I am sure of, you will have done the prep work & be loaded for bear at that little get-together.

Darn good thing I bought a lot of great toys this year

More examples by The Maestro from which we should learn!

[speedle]

+1! on all that.

[JonMarsh]

Meeting occurred yesterday, a lot of info shared with CEO and two reps from HR, nothing definitive yet, but agreement that something has to be done, including negotiation with vendor, and probably implementing a local program manager. Also some local accommodations under consideration.

we'll see....

Looking forward to Thanksgiving break, as the customer will be shut down all that week.

[tf1216]

Hello JonMarsh,

From what I have been reading your company appears to be doing very well requiring more and more of your services. Are they hiring folks from around the country? I have an engineering degree and a propensity to work long hours. I've been yearning for a position that will build my professional portfolio in a way to become one of a few that are capable of satisfying certain job requirements.

[JonMarsh]

That's a possibility. I'm an applications engineer, for power conversion; we make power switches, diodes, and SMPS controllers, including mixed signal and full digital. Are those areas you have experience in ? SMPS design? Industrial micro programing/firmware development?

Our US HQ is in Milpitas, CA (near San Jose), though we have offices in other areas, like Detroit, Raleigh NC.

[tf1216]

Experienced gained, for me, is in antenna design, medical device sales, and now applications in 50/60 Hz power quality and distribution devices. Thank you for replying sir.

[wkhanna]

Meeting occurred yesterday, a lot of info shared with CEO and two reps from HR, nothing definitive yet, but agreement that something has to be done, including negotiation with vendor, and probably implementing a local program manager. Also some local accommodations under consideration.

we'll see....

Looking forward to Thanksgiving break, as the customer will be shut down all that week.

I suppose that at this level of corporate hierarchy this could be seen as significant progress.
I have always found it impossible to get our VPofO or CEO to ever commit to a date on anything, with the exception of the company golf outing.

[JonMarsh]

I have always found it impossible to get our VPofO or CEO to ever commit to a date on anything, with the exception of the company golf outing.

:rofl: :rofl: :rofl: :rofl: :rofl:

We probably have our own equivalents, but I don't play golf, so I don't get invited to those kinds of events, either internal or with customers...

We're just going to kick back and see how things unfold. Given certain financial particulars, like fiscal year end bonus, the status quo will roll along (probably) until the end of November at least. If there isn't progress by then, well, I doubt I'll be the only problem in this situation, as a year long run like this is out of the question for others, too.

On another sad note, Tom Clancy passing away at 66 is another reminder that we don't have an infinite amount of time to play with... I wonder when he planned on retiring?

[wkhanna]

:rofl: :rofl: :rofl: :rofl: :rofl:

We probably have our own equivalents, but I don't play golf, so I don't get invited to those kinds of events, either internal or with customers...

Ha! I do not play golf either, nor have I ever been to any such event. Nor would care to be!

On another sad note, Tom Clancy passing away at 66 is another reminder that we don't have an infinite amount of time to play with... I wonder when he planned on retiring?

A quote of yours from different thread that seems most appropriate, "This is at the heart of the matter... "

[Beau]

Anyone interested in accuton mids, mine are up for sale in the classifieds. Negotiable.

[Hank]

Jon, ENOUGH IS ENOUGH! You are being USED. Life is short and you will NEVER recover the excessive hours you spend on your job. We need to talk. There are jobs in Austin. Heed my words, bro.

[JonMarsh]

Thanks for the inputs, Hank, but I'm not in Austin, nor likely to be at this stage of things, though if I had to live in Texas again, that would be my choice! But between GF and daughter, it's not happening. I'll have the incentive payment for the recently ended fiscal year by the end of November, so that's sort of a milestone date. I have a lot of savings, and substantial deferred income that vests immediately on termination; for tax reasons, the best time to do that would be after Xmas, for the new year. I'd rather not retire now (really have been thinking about saving up for a Tesla Model S), but it's not out of the question. I'm not involved in the late night calls, with the approval of my manager, but if this becomes a problem at the customer, then our team has to react with one of the contingencies which I proposed. A lot of other stuff in discussion, which of course I can't go into here.

So, for now, and because of how important this opportunity is to the company, I figure sticking it out until the end of the year is in the cards. Others are looking at this similarly, and cannot make an year long commitment under these conditions- that information is on the table with our management. What they do with that, well, that remains to be seen.

And yes, Bill, these considerations and things like Clancy IS at the heart of the matter...

I'm still really curious about why he died so quickly. So often it's cardio problems, but I believe I have a regimen that takes care of that, unlike mainstream care. Google "Pauling Protocol for heart disease" if you're curious about that- and you should be, being a member of the great apes family, one of the few animal groups that doesn't successfully manufacture vitamin C in the liver. There are SO many preventable deaths, like James Gandolfini.

I highly recommend EVERYONE read this book, and think about the costs and tradeoffs as well as typical side benefits (haven't had the flu or a cold since 2006).

http://www.amazon.com/Practicing-Medicine-Without-License-Handbook/dp/1435712935/ref=sr_1_1?ie=UTF8&qid=1380809159&sr=8-1&keywords=practicing+medicine+without+a+license

[Hank]

Jon, I know you're in the land of fruits and nuts, just sayin' you need a life - check with your GF for concurrance. I'll Google the heart subject. I'm 66, haven't been sick with anything but walking pneumonia in many years, don't remember a sick day in my 34 years here at 3M, paddle on our 3M Dragon Boat Race Team, eat fairly healthy, lost 17 pounds in Feb/Mar on the Ideal Protein diet, and drink tequila and rum like there's no tomorrow:dancenana::drinker:
Take a look in the mirror on New Year's Eve.

[ColoradoTom]

So, for now, and because of how important this opportunity is to the company, I figure sticking it out until the end of the year is in the cards. Others are looking at this similarly, and cannot make an year long commitment under these conditions- that information is on the table with our management. What they do with that, well, that remains to be seen.

And yes, Bill, these considerations and things like Clancy IS at the heart of the matter...

I'm still really curious about why he died so quickly. So often it's cardio problems, but I believe I have a regimen that takes care of that, unlike mainstream care. Google "Pauling Protocol for heart disease" if you're curious about that- and you should be, being a member of the great apes family, one of the few animal groups that doesn't successfully manufacture vitamin C in the liver. There are SO many preventable deaths, like James Gandolfini.

I highly recommend EVERYONE read this book, and think about the costs and tradeoffs as well as typical side benefits (haven't had the flu or a cold since 2006).

Jon,

I feel your pain about work. I haven't been able to do any woodworking since last December. At my physical three weeks ago my blood pressure was 175 over 105 - I think my doctor thought I was going to stroke out on the table! I've now made a commitment to loose 15 pounds by next summer (already lost 5), I signed up to play tennis three times a week, I take my husky for a 2 mile walk every day, and I'm back to taking a variety of vitamins every day along with a very low dose of blood pressure medicine. Since I run my own business I am the boss, but our clients have made a lot of unusual demands on us over the past nine months - so I'm trying to control our work flow as much as possible! I've been trying to go play my guitars when I've felt over my head - its one thing that really does relax me almost immediately.

The only audio project I've been able to complete in the last year has been to upgrade the toroid in my Sound Lab speakers. It made a significant change (for the good) in their sound. Still hoping to tackle this project or the Ardent in the (hopefully) near future.

Hang in there............

Tom

[JonMarsh]

Well, Tom, not too surprised to hear you're living in similar conditions, but yes, DO take care of those issues; exercise is one of the best things, and something that's been suffering for me the last month- have to turn that around. We had a marketing guy out for a month (August) because his BP had gotten out of control, and wasn't dropping below 180/110 even with reasonable medication levels.

Now we've got a short respite at the customer due to manufacturing delays, and I'm only going in every other day, which will allow a little breathing room and catch up for a week or so.

I hope you manage to find some time to have some audio fun before too long. If you take a peak at the thread about guitar cabinet with RS180's, you'll notice I've been busy regenerating the music side (well, at least buying gear- not nearly enough time for the amount of practice I'd like) but that's come along pretty well this year.

And I'm finally getting digital audio setup the way I want, and even investigating another re-clocker (Mutec MC-3 Plus) over our favored Brainstorm DCD8 (excellent performance, but twice the price of the Mutec). But personal stuff has basically stalled since the middle of September.

At least we got our hike in walking across northern England on the Wainwright trail this summer. With this program ongoing, no vacations are likely until after this time next year. But then, GF wants to go to Antarctica February 2015, on a Sierra Club trip, (it's summer there, then), so maybe this will all work out...

Take care of yourself!

[JonMarsh]

Hot damn! Backordered parts from August order have finally shipped from PE!


Qty Ordered Qty Shipped Part Number Description
12 12 027-498 JANTZEN 15UF 800V Z-SUPERIOR CAPACITOR
0 0 027-948 JANTZEN 47UF 400V CROSSCAP CAPACITOR
1 1 027-950 JANTZEN 56UF 400V CROSSCAP CAPACITOR
0 0 027-954 JANTZEN 82UF 400V CROSSCAP CAPACITOR
0 0 255-662 JANTZEN 0.27MH 14 AWG COPPER FOIL INDUCTOR
1 1 255-684 JANTZEN 1.2MH 14 AWG COPPER FOIL INDUCTOR

Time to start planning the new mid board layout once these get in!

[wkhanna]

You are going to be a busy boy over the Thanksgiving holiday!

[JonMarsh]

You are going to be a busy boy over the Thanksgiving holiday!

Yeah, and I'm not likely to much spare time before then!

[JonMarsh]

wish me luck- it's measurements and crossover module swapping at GF's this afternoon- will be trying out the newly built LF and HF modules today, as well as installing a new subwoofer (that I built for her this summer) in her HT system. Also will probably take the music server boxes over there just to try out this evening and load some of her CD's, though I've got more to do with that here.

Should be a busy day!

[JonMarsh]

welcome to HT Guide, Kelvin!

There is also a thread I've started about configuring the current digital system and adding in a Brainstorm DCD-8 with a 10MHz rubidium clock, as well as pending investigations in to the Mutec MC-3 Plus you might be interested in.

I'm very happy with the performance of the TotalDAC-D1, but it is responsive to improvements in the upstream digital source timebase, in spite of the excellent reclocking buffer it uses internally.

[Kevin P]

welcome to HT Guide, Kelvin!

Kelvin is no longer with us. He sneaked a spam link into the quoted part of his post, so he's now in the dungeon from whence no spammer ever escapes.

It was a nice try though, his post seemed to be on-topic.

[JonMarsh]

Dang! I didn't even notice that! But then, things are kind of hectic...

[WilZirkle]

and here I just though Jon was talking to himself....(again)

[JonMarsh]

and here I just though Jon was talking to himself....(again)

that happens from time to time, too... that's why my GF and I get along, she does the same thing... :W

[Hank]

I not only talk to myself out loud, but I ANSWER! And, I refer to myself in the plural: "Now let's order those upgrade caps today". I'm in serious need of help, methinks. :??

[JonMarsh]

I not only talk to myself out loud, but I ANSWER! And, I refer to myself in the plural: "Now let's order those upgrade caps today". I'm in serious need of help, methinks. :??

Nah, I suspect we exhibit pretty normal and typical behavior for our demographic - particularly with the answering thing... It's one way to feel like SOMEONE is listening to us!

Back ordered parts from PE we're waiting for me last night when I got home at 8:30- one less thing to worry about, and lots of shiny new red 800V Jantzen caps to work with!

[PMazz]

It's really bad when you tell yourself a joke that you never heard before.....

[JonMarsh]

It's really bad when you tell yourself a joke that you never heard before.....

It's a right brain/left brain sort of thing... especially for men, who don't have as much interconnection in the corpus callosum between the two hemispheres! And that's why talking to yourself DOES help mental integration and memory... :W

[Hank]

Okay, FINALLY, I top the mighty Jon: My order for replacement/upgrade parts for my Acoustat interfaces arrived. I laugh at your paltry 800 volt caps: I've got some 6,000 volt Wima's!:heh: And, some 25 and 50 watt resistors. And a couple of 47uF film caps (man, those are big). BWAHAHAHAHAHA!

[JonMarsh]

Okay, FINALLY, I top the mighty Jon: My order for replacement/upgrade parts for my Acoustat interfaces arrived. I laugh at your paltry 800 volt caps: I've got some 6,000 volt Wima's!:heh: And, some 25 and 50 watt resistors. And a couple of 47uF film caps (man, those are big). BWAHAHAHAHAHA!

;x( ;x( ;x( ;x(

Oh mighty exalted one, you have humbled us with your exalted system and wondrous components! I shall never take soldering iron to speaker crossover again, so humbled I am by the heights you have now reached (think Phd; Piled Higher and Deeper.... ) :lol:

[elessar]

:alol: i was just looking through some parts i have lying around and found a 8k ohm 50W resistor ... that would be 632V. Not near your 6kV but it's a resistor.

I wonder where it came from

[Hoangminh]

can u send me the layout dimension for bass module below mid trebble module which was already been given. thank you

[JonMarsh]

can u send me the layout dimension for bass module below mid trebble module which was already been given. thank you

I just need your email. PM me or send to my email in my profile.

[Hank]

(think Phd; Piled Higher and Deeper.... )

I'm tempted to say: "My voltage is higher than your's", but that would be too cheesy so I'll refrain.

[JonMarsh]

You know, the Borg may say "Resistance is futile", but as an engineer, I say resistance is voltage divided by current....

Do enjoy your Acoustats... We'll still let you hang out on Mission Possible DIY... :W

[JonMarsh]

More slow work takes time....

Jeez this lifestyle is getting to me...


Have to fit in whatever bits of progress I can during the day.... not usually getting home now until about 8:30 to 9 at night, and just going to bed.

However, this is the update on the complete crossover, with the updated midrange broken down by components. Note that the tweeter caps could be MR or Z-Superior, and the recently built ones are Z-Superior as a test.





I need to double check that all resistors are on hand, but I think I'm good, and hope to start the build this weekend for the new midrange boards which can be mounted in the cabinets. The woofer and tweeter boards are done.

[bigg]

Hey Jon,

I liked the Phenolic(?) piece you put between the modules.

If you were building this today, what woofers would you use?

[bigg]

Sorry folks. Sometimes it seems like I have a talent for ending threads with my less than brilliant posts!

[JonMarsh]

well, I'd still do it with the Aurasonds, they're available through Asia, though not easy to source- and I have more.

IF NOT going with the Aurasound, the new Scan-Speak 32W/4878T Revelator is something I'd want to look at, but the T/S parameters really aren't where they need to be for a sealed system.

For bang for the buck, I'd try measuring and modeling the ScanSpeak Discovery 30W/4558T- a lot of driver for ~$250, but again, not quite the right T/S parameters (more for ported than sealed). But worth a look for a Qts alignment of say, 0.5 to 0.55- with judicious room placement and boundary lift, might work out well.

another possibly interesting driver is the Wavecor SW310WA01/2; there are 4 and 8 ohm versions, and the Qts is in a better range for sealed systems, but they don't use the new balanced drive motor concept. But they do have aluminum field rings to reduce motor distortion. Rather an unknown quantity, they claim to have a very stiff aluminum cone. It would be one to investigate.

[Face]

How about AE? http://www.aespeakers.com/drivers.php?driver_id=11

With room gain.

[JonMarsh]

I was thinking about them, too, while writing the post, but most of their drivers are on the low side for Qts- but I'd certainly look closely at anything they do before making a choice.

[Jonasz]

IF NOT going with the Aurasound, the new Scan-Speak 32W/4878T Revelator is something I'd want to look at, but the T/S parameters really aren't where they need to be for a sealed system.

Well, in good old SS tradition I'm sure you can add 30-40% to their Qts...

[Jonasz]

Btw, another vote for the AE-woofers, they're really nice.

Oh and whadabout these SB-Acoustics?

http://www.sbacoustics.com/index.php/products/woofers/12-sb34nrx75-6/

Never heard them though... and maybe the Le is s little on the high side...

[Face]

Le is fine for a woofer in a three way. I have a pair of those that I haven't done anything with yet.

[bigg]

More slow work takes time....

Jeez this lifestyle is getting to me...


Have to fit in whatever bits of progress I can during the day.... not usually getting home now until about 8:30 to 9 at night, and just going to bed.

However, this is the update on the complete crossover, with the updated midrange broken down by components. Note that the tweeter caps could be MR or Z-Superior, and the recently built ones are Z-Superior as a test.





I need to double check that all resistors are on hand, but I think I'm good, and hope to start the build this weekend for the new midrange boards which can be mounted in the cabinets. The woofer and tweeter boards are done.

Maybe this has been covered. Or maybe its a stupid question but why the swtch with resistance option on the tweeter?