Monday, November 12, 2012

YL and Goto..

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I had the opportunity to make a fairly informal comparison of a YL driver and an early Goto driver recently.  As many of you know, Goto and Kondo worked together at YL.  The story is that Goto left when they began to use folded horns.  This was a compromise he just could not accept.  Not sure of the accuracy of that, but that is how it was passed to me....

Goto photos:






so this comparison was not a perfect A>B... it was not really fair to the YL driver as we had to use it below its recommended range.  However, the horns were the same.. and should load the driver just fine to well below where we were crossing... I think we were crossing in the 500 range and the horn is a cast very early Goto horn of about 250Hz flare with a too small mouth... but this is a system that was designed for listening from anywhere.. .upfiring horns.. Altec 416's in a big sealed box below... and TAD 4001's used as tweeters.. even given all of these caveats, it was easy to discern which driver was which...

here are the same horns in one of my old "lashups":




in general, the Goto was a bit richer... which is obvious as it went lower, but this quality extended to the treble as well... the YL was just as quick and delicate, but it had a touch of tizzy.. not a lot, but it was there... neither driver had giant scale, but they did Soul/R&B/Blues well at medium volumes, and the slight feeling of compression worked very well on Nirvana's "D7" from Live at Reading... which was *way* too loud... just awesome...

YL photos:







Peace,
Me

Monday, November 5, 2012

Big Star - Memphis Indie Pioneers...

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too many coincidences lately... watch for them.. it is late in 2012.. but first, the story..


last night I was privileged to see the Big Star documentary at the Indie Memphis Film Festival.  I was invited by Chris Bell's niece.. in turn, I invited one of his best friends... and in this group, the circles of friends all closed quickly... Ardent, the Fry family, the Turleys who started a local restaurant with Chris's family... dang it.. I fell into coincidences again... let's just say small circles... like my friend Tommy, who owns the first amps I ever built, was in the movie!

I need to get to Big Star... move along, 2012...  Big Star was a local band that was a commercial flop... copies of their albums were impossible to find... yet somehow they survived.... almost legend... whisper on the wind... from musician to musician did #1 Record pass... and somehow, despite zero sales and less promotion, an alternative rock album from  early 70's Memphis is here today... Elvis was still around.. Isaac Hayes ruled the other side of town... this record was definitely Memphis, but had no home...


 the music was too far ahead of its time... REM and the Replacements cited Big Star as their major influence..  jangly guitars would belong to college rock, but not for at least another decade... but critics did recognize them... all three of their albums are in Rolling Stone's top 500.... so.. I guess I am saying that if you like Indie.. or college rock... these guys are who you owe... pick up #1 Record... or, perhaps more so, you really need Chris Bell's I am the Cosmos..


(YouTube links and ramblings of an actual music writer are here:  Stereogum)

PS to JC - hey man... there were quite a few partying scenes with Eggleston (yes, audiogeeks, Eggleston Works)... I am wondering if your old man was in this doc as well?  It certainly looked fun!

Monday, October 29, 2012

The center... side three.



With a hurricane approaching I was excited to see the media mail show up today.



I lost power.  Luckily I was the first and it came back on quickly.  Time will tell the rest. 



I am spinning at 33 for the moment. 


power interrupt.


Saturday, October 20, 2012

Too Hip To Kick It?



Both JJ and I are huge fans of Kickstarter. Is Kickstarter a fan of us?  Not so much.



In order to get things moving with the phono corrector we decided to try Kickstarter and offer up a few units at a reduced cost to get the EMIA ball rolling.  Ultimately the EMIA model has the units being sold through dealer network so the final price will need to take that into consideration.  However with all of our capital at risk we decided a few of the early ones could "squeak out the back door" at a reduced price to ramp things up.  We did need a means to draw a line in the sand to protect us in the future.

Kickstarter seemed to be the perfect venue to draw that line.  We jumped through all their hoops and they declined us providing a list of smaller hoops we needed to jump through.  We thought we did pretty well, hell JJ even played "Ed Wood" and uploaded a video!  Alas we were declined again.  They did do us the favor of allowing a public preview of the declined project so we ask you to take a peek and tell us where we went wrong.  (the video alone is worth the price of entry)

Our Kickstarted project.
 

Here is a list of the "special guidelines" we were required to meet.

• A functional prototype must be shown. If an adequate demonstration requires video, a video demo must be included in the project description or project video. Still images alone will not suffice.



check...

• Simulations of functionality and photorealistic renderings are prohibited. Products can only be shown performing actions that they're able to perform in their current state of development. No exceptions.


sure sounds like music to me... maybe a picture of the bling on the back panel would convince them.



• Detailed information regarding the creator's background and experience must be included in the bio or project description.

our bios say it all... anything more would be BS.

• A thorough manufacturing plan must be described. Details should include steps taken in the product development process up to the point of project launch as well as production and fulfillment plans post project success.

working prototypes.... done.... playing as I type.  delivery by Festivus is a promise not to be taken lightly.

• Creators can only offer one of a single item or one sensible unit of multiple items. For example, if you had a drinking glasses project, you could choose to offer 1 glass per reward tier, or if a set makes more sense, 1 set of 4 for each tier. You could not offer 1 glass in one tier and 4 in another tier.


check.  single item, single tier.  Do they really want to be a place to hawk $25 T-shits and $50 record bags?

Unfortunately, this project did not satisfactorily meet these requirements, which means we are unable to accept it. This isn't a judgment on the quality of this project, just a reflection of our focus.Ahh... Focus.  That must be it.

I guess that means we need to refocus and offer up the same deal here.  The quantity is limited to 6,  4 commitments are needed for the "deal" to go through.  As a plus since Kickstarter will not be getting their 5% the price is now $2400.

Comments below secure your place in line.  Private correspondence will hash out the details if needed.

peace,

us




Monday, October 15, 2012

The Anti-Audiophile rack...

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so what to do when you have a bunch of gear?  Do you really want to look at all of that mismatched stuff?  I don't.  I will be completely honest and say that I would much rather have it all in a closet than look at it - yes, even Eimac tubes... To me, it keeps the focus on music and away from gear.  Are there exceptions?  yeah.. of course!  most turntables... the REL Precendent.. and my Marantz Model Twenty makes me smile... but now I have wandered off task... so I googled "ultimate audiophile rack"... and this kind of gave me the shivers:



So what to do if you have no closets and want easy access but no staring at nerd gear?  Well, you scrounge until you get lucky..  and lucky is what I must be... check out the Art Deco cabinets from Simplex! 



yeah...  I will need to customize it a bit... so that the right components are easy to get to... and the noisy and hot items are down below... but I can handle having this baby in my listening room... maybe some strategically placed mercury tubes behind those openings?  or Tungar field coil supplies?  or just a power switch and a classic jewel bulb as an indicator?



so I do have a couple.. one is spoken for... drop me a line if you are interested... I will post a follow-up when completed...



Peace,
Me

Tuesday, October 9, 2012

There's a new blogger in town...

I checked his credentials... apparently he really has owned damn near everything HiFi and Theatre related from about 1925 to 1975... he even sold "audiophile" gear in the 80's... I guess you have to know the enemy... but Dave and I are not scared of him... (Iain might be)... because we know that all you have to do is put on some James Brown and he loses all focus... but then, so do I... so maybe we need a Plan B?


The above shows how Joe normally dominates the conversation - with a WE24a to cheat!  I guess this is his new online equivalent...


Papa Joe's Blog:  www.JunkyardJukebox.com


Peace,
Me

Monday, October 8, 2012

audio as art.





This is by far the most beautiful cartridge I have laid my grubby paws on.  It only took a decade to find one... it doesn't work... but  someone circa 1954 "got it"




For those of you that thought that the Strain Gauge cartridge was an invention of the 70's, think again.

dave

Monday, October 1, 2012

how do you shrink metal?







Western Electric 16A update....

wow... pretty vertical pieces.... ahhh.... but... but... 

I have to be honest here... although I knew the 16a would be a formidable project, I was a little aloof and dismissed most of the work as just requiring labor as it was simple sheet metal, right?  wrong.  The initial impression from walking up to a 16a is that it is finished very simply and crudely.. and in many ways, it is.. but.. but... the more we looked, the more we realized it was very accurate.. very accurate... very smooth flares...

but we also noted a differing level of finish on the several examples we have seen up close... so we thought maybe the plans were just shipped around to regional metal shops.. but now, having tried to make some of these parts ourselves, we are convinced that at least the horizontal pieces were stamped... under very high pressures... there is no other way to get the flare that smooth...

so those of you who want to follow along in the geekery, here is an example of a section:



see that upturned lip of just under an inch running the length of each side?  yes.  that one... well, if the panel were flat, you could just take it to a sheet metal break and bend it.  but because this piece is helical, the lip must stretch on convex turns and SHRINK on concave turns!  how the heck do you shrink metal?  yes, I know stretchers and shrinkers exist.  But they are crude.  inexact.  there is no way to get this level of accuracy, much less repeatability, with a shrinker.  You have to use brute force over a die.  so in the name of doing this thing properly... so that every one will be the same... and so that each will flare smoothly... we are making dies... old school.. the proper way to build this...

but until we finish that, here are some pretty vertical pieces...




Monday, September 17, 2012

Guest post: Shines pays Clippy a visit

Guest post: Shines pays Clippy a visit


So, a short while back, that has since turned into a long time, I shows up at Clip's place with assorted beers, which previous experience suggests works better than "Open sesame". Seeing as this a blog on stereos, let's get the beer thing out of the way first. Top tip: avoid smoked beer. Raising a bottle to my lips, it smelled of BBQ. "Strange," I thought, but interesting. Damn near tasted of BBQ too, but alas, closer to ashtray.

Thankfully, the remainder of the selection met with our approval. On to the sounds...

Let's begin with a disclaimer: as with all vicarious accounts of sonics, particularly those online, your prior position should be that I can't be trusted. Let me assuage some of your doubts. First, I am a *very* experienced listener, in fact, I have been listening for pretty much my entire life, beginning inside the womb, actually. Which, incidentally, is good for Lowther shout (more of which later).

Secondly, as my Q-tips will attest, I am quite the golden ear.

Anyways, the great thing about visiting Clips is your never quite sure what he's going to serve up. In my case, the speakers were the EMIA Field Coil Lowthers on rear loaded horns, driven by a 4304CB amp. Clips spun a record.
Initial impression: what the hell? These Lowthers were -somehow - smooth. Wha? Ordinarily, I'm not a fan of "fullrange" drivers, and in particular, *lowth* anything with a whizzer, but in this case, the usual banshee howl was gone. In its place: velvety, microtextured, gentle and relaxed (i.e. correct) sonics. Really very nice indeed. That field coil must be doing a lot more to the Lowther than just running a few lines of flux through its steel gizzards.

Again - I think the concept of a one-way speaker is a non-starter, at least for the stuff I like to listen to, but I would *gladly* build a front-horn loaded system around these puppies providing the midrange.  I know that since my visit, they've been played in the big Azuras and relieved of bass duty. Would love to hear that setup some time.

Another beer interlude, and now that I had loosened up, Dave proceeded to fuck me up. To clarify: he asked me to compare two autoformer volume controls, identical save for the windings - one copper, one silver. I listened in that order, thinking, yeah, I'm probably gonna struggle to hear the difference, but I might probably convince myself that the silver sounds brighter up top, and confidently relay that back to him, so as to preserve some measure of Aural Cred with the EMIA boys and - erm - that's it.

No. No way. Not in a thousand years.

This messed me up. First thought was that the silver sounded just a little bit duller. A few seconds later: it's actually quite a lot softer, more relaxed - in a good way. A short while later, and I'm relaxed, enjoying "This one's for Blanton" -(incidentally, I gather this is a bit of an audio cliche disc, but having not heard it before, I actually really liked it). Just as I'm zoning out, Dave shouts from the control room (upstairs): would I like to switch back to the copper? Well, this ain't the time for enjoying the music, this is the time to figure how to enjoy the music more in future. So...

Back to the copper. It now sounded harsh and disjointed, almost distorted by comparison. A bit of back and forth... it was easy to pick out which -  I asked Dave to switch stuff randomly and "blind" to make sure.

This, my fellow junkies, has so messed me up that it has even got me thinking of going scorched earth for OTL, for the simple reason that I can't afford the good stuff... and the thing is, the copper actually sounds quite lovely until you hear otherwise.

Confession: my textile ears have never been much good at picking out differences between passive components. It's probably why I love playing with different speaker drivers over other stuff. This, OTOH, was so damned obvious that I dread to think how miles apart MC step-ups in Ag vs Cu might be.

I don't want to think about this any more, at least, not until Silver hits 3 bucks an ounce again. Yah.

More beers, more records, a bit of post-midnight meat (ribeye and peppers on the grill). I'm absolutely zonked and ready to crash, but somehow, Clips persuades me that - at 2:30am -  it would be a capital idea to stack some 80% nickel lams into some bobbins (thankfully, already wound and around), and compare to the amorphous outputs we had been listening to...the previous day.

Now I know why this site is called what it is. I must have inhaled 3 lungfuls of the mysterious fine powder that the lams came coated with. Clips assured me it was the manufacturer's proprietary coating - gotta admit, it made sense - you want high resistivity between laminations, that's the whole point of lams in the first place, and what keeps your transformer eddy current losses low, but erm, don't most guys apply some kind of varnish or lacquer coating? Hmmmm....

Dave checks the gap and characteristics on the bridge, pronounces the transformers healthy, and one of us has to wire these OPTs into the amp running at 1kV... ok, so my bronchioles are now nicely lined with lam powder and there's therefore no way a current can conduct across my chest, but not for nothing do they call him Clips. I return to the listening chair downstairs.

I've been rambling, so long story short. Amorphous: clean, crisp leading edge, clear. Nickel: big, billowing soundstage, very relaxed, built for comfort not speed.
*Somewhat* like copper vs silver respectively; but here - as Dave is fond of saying - we are talking a difference in flavour. In the former case (geddit?) - the silver/copper thing is more like eating your food vs having it delivered through a tube.

This has me thinking that an amorphous/silver combo might have a very, very interesting blend of sonics, but for now, I am confident that ye brethren would be absolutely delighted with 80% nickel.

Cheers,
shines

Tuesday, September 11, 2012

drug store needle tester



This one came from a most unexpected source.  I was bored and checking out all of the old familiar places when someone suddenly mentioned a "Mystery Retipper". Knowing most of the usual suspects,  I took a peek and the guy is in Seattle.  The two things that caught me from his bare bones site were the fact that he also repaired watches and the picture of the Fidelitone Needle Clinic.

To this day I never knew there was a "drug store needle tester"  and this thing just looks awesome. 



I really didn't want to call the guy for permission to use his pictures but 20 minutes of searching for this unique device had me dialing the phone.  Chong answered the phone and we chatted a bit. The thing that  impressed me from the entire conversation of cartridges, cantilever materials and stylus profiles was his pride in owning this "souvenir"





Wednesday, September 5, 2012

Directly Heated Triode Line Stage...

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directly heated triode line stage
71a or Western Electric tennis balls
mercury rectified
film and foil in oil capacitors
six hand wound pieces of nickel (permalloy)
sixteen pieces of iron total
remote with balance and mute
-47dB to +15dB in 1dB steps

10dB bandwidth = 3Hz to ~1MHz
1dB bandwidth = 14Hz to 125kHz

steel, brass, bronze, walnut, and maple chassis



 
 

  

 









and the filament glow....

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