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Old 21st August 2009, 03:38 PM   #21
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Originally Posted by SY View Post
Very reasonable prices, seemingly well-engineered, therefore they have to be terrible.
Where do you see the prices?
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Old 21st August 2009, 04:25 PM   #22
SY is offline SY  United States
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See the post above- they may have been taken down. A stereo unit was like $100.
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Old 22nd August 2009, 03:11 PM   #23
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I did a quick survey on a Polish forum and it doesn't seem like people are familiar with that product, maybe it's something completely new.

It's also being sold here: http://allegro.pl/item714176976_pasy...e_symasym.html
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Old 22nd August 2009, 06:52 PM   #24
piero7 is offline piero7  Italy
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I've written to them and they told me it will be available in the next two weeks
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Old 2nd September 2009, 08:35 PM   #25
Nrik is offline Nrik  Denmark
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subscribe.

Did anyone ask them if they make linear?
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Old 2nd September 2009, 08:40 PM   #26
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Did anyone ask them if they make linear?
They do customs for a bit extra, but don't recall the pricing for customs other than custom quad which was $199 I believe.

Why linear? For something other than volume control?

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Old 2nd September 2009, 08:44 PM   #27
Nrik is offline Nrik  Denmark
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Yep - balance and eq
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Old 18th July 2010, 01:37 AM   #28
KBK is offline KBK  Canada
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Default Khozmo Ladder attenuator 48 step MBB 50kohms

Just got my first unit, I'm gonna see how she sounds. Looks pretty good so far!

I do not suggest taking the unit apart unless you are excellent at aligning mechanicals in quadruplicate alignment. There is very little room for error. The first time/attempt at re-assembly would be quite the task for the average Joe, methinks. I cannot imagine the quad ladder unit assembly headache.

In case you are wondering, there is obviously an insulator for the wiper to isolate it from the shaft and lock system. You can't quite see it from the given internal picture.
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File Type: jpg Khozmo ladder attenuator 004.jpg (131.8 KB, 928 views)
File Type: jpg Khozmo ladder attenuator 006.jpg (138.4 KB, 924 views)
File Type: jpg Khozmo ladder attenuator 008.jpg (122.1 KB, 851 views)

Last edited by KBK; 18th July 2010 at 01:56 AM.
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Old 18th July 2010, 02:40 AM   #29
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wow!

I can not imagine what it takes to assemble those things!!
Whew!

I have some concerns about the wiper assembly and the thickness of the traces... but it is a magnificant effort no matter what...

What was the price for this beast?

How many DB per step - and are these "pots"?? (tapped string of resistors)

(I note the Dale resistors... I presume those are 1/4 watt??)

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Old 18th July 2010, 03:56 AM   #30
KBK is offline KBK  Canada
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They were about $189 each delivered to N-A, from Poland. My biz partner has ordered two of the surface units, and I grabbed one of the dale resistor types. They appear to be 1/8th watt, according to the website.

The thing about attenuators is that they are like isolated resistive loaded '3-d' field spaces with respect to their action and innards. Due to this, mechanical loading and mechanical control (or any other aspects) of the elements is critical as they can do get into motor effects from vibrational input. This is why people say that the knob of a volume pot can make such a sonic difference. It changes the mechanical damping of critical components. it's almost like a case of when microphone cables are overtly sensitive to mechanical noise input becoming signal. Actually, it's exactly that.

Music isn't steady state, so there are microseconds of the transient structure of the signal passing though them (volume pots) that momentarily have near infinite impedance (due to sharp delta)...so microphony rears it's head and becomes a notable problem.

With two seconds of thinking attached to that, then it becomes clear that this happens in all equipment in all areas all the time. Not just the volume pot. But the volume pot is a near special case, as it is an electrically isolated variable system. Like some loose cannon of a connected but isolated high impedance transistor noise function. Under maximum load variation, no less. With a critical circuit on either side. Think of it as a variable spring hooked up between two spring like structures. And you are attempting to get variable levels of signal modulation through all three..by varying the middle one. You'd better have a really well built middle one and it had better be under excellent control.

I'm glad to say that this unit is mechanically stable and quiet. Which, as you can read above, is critical to getting superior sonics. However, I have not tried the unit yet to check on it's electrical considerations and I many never report on that aspect, I may leave it up to the inquisitive to investigate.


Whatever the situation may turn out to be, it's a great looking unit. I wholeheartedly support the design and sale of these units, which is why I have one. We need this stuff to be out there and being developed.

Last edited by KBK; 18th July 2010 at 04:12 AM.
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