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Old 31st December 2006, 08:53 PM   #21
Pano is offline Pano  United States
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Was my last post one of them? I can't even find it in Texas. I didn't think it was nonsense, just talking about market share.....
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Old 31st December 2006, 09:13 PM   #22
john65b is offline john65b  United States
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Darn, missed that one...a possible repost?
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Old 31st December 2006, 09:24 PM   #23
Daveis is offline Daveis  United States
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Quote:
Originally posted by fokker


class d's selling point is its efficiency (its sound quality is either no better than traditional class ab or the mass market doesn't care).

the same thing can be said about UcD.

If my buddy with multichannel Rotel is willing to loan it to me, I will put his class ab up against my UCD. It should be interesting.

The start of this thread is that Tripath is going out of business. If that's the case then there are plenty of Class D offerings from TI, UCD, and others.

So what are you implying about UCD? That it sounds bad or that the company is going out of business?

I am currently using a UCD alongside a Threshold T200 class a amp. Both are good amps. Do not discount the power efficiency of ClassD being a benefit. I have 4-way speakers now with active crossover.

If I used 4 similar Threshold amps I'd be stuck with 4 times 400 watts of heat, or 1600 watts of heat.

Triamping with Class A amps isnt very feasible. But I will be testing some common Class AB amps soon just to see if my enthusiasm for UCD is warranted.

I'd personally love to discover that I can't tell the difference between my favorite amps and cheap multichannel H/T amps. But so far I've havent found that to be true.
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Old 31st December 2006, 09:48 PM   #24
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Pan, it may have gone walkabout if you posted whilst I was splitting, I'll have a look later.
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Old 31st December 2006, 10:32 PM   #25
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Pan, this one?

http://www.diyaudio.com/forums/showt...14#post1094114
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Old 1st January 2007, 02:54 AM   #26
fokker is offline fokker  China
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Quote:
Originally posted by Daveis
So what are you implying about UCD? That it sounds bad or that the company is going out of business?
I don't think UcD has the longevity to it. the fact that DIYers and class D fans love their products have zero bearing on its business success - we are just so tiny piece of the market to support any sizeable company. For them to be successful, they will have to commercialize their products on a reasonable scale. The fact that they have been around for a while and no one (of any reasonable size) is using them should be quite alarming for their investors, i would think.

to me their market positioning is foundamentally flawed.
I am currently using a UCD alongside a Threshold T200 class a

Quote:
If I used 4 similar Threshold amps I'd be stuck with 4 times 400 watts of heat, or 1600 watts of heat.
if you do the mass, you will find the numbers to be a little misleading. most of us listen in the <10w territory, less if you bi/triamp. I bet you at that level the UcD's efficiency isn't much higher than 1/4 - 1/3, in line with a typical class ab amp and you dissipate about 7w of heat per amp. or in your case 30w of heat for either your class D or class ab configuration.

the efficiency comes into play only when you play near the amp's full output levels. At that point, we are talking about 80-90% efficency for Class D vs. 60-70% efficiency of Class AB. or a gain of 20%.

However, even with the least efficient speakers, you are talking about deafening levels of loudness and you certain risk hearing damages at those levels for a prolonged period of time.

Quote:
I'd personally love to discover that I can't tell the difference between my favorite amps and cheap multichannel H/T amps. But so far I've havent found that to be true.
that doesn't mean the difference exists. it depends on how the tests are set-up and if they are done correctly.
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Old 1st January 2007, 08:46 AM   #27
cotdt is offline cotdt  United States
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well at least it's good to know that there will be a stock of Tripath chips are a while. But a few years from now i bet there will be a big increase in price for tripath chips.
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Old 1st January 2007, 04:21 PM   #28
speaker is offline speaker  United States
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Default Re: The End For Tripath??? Say It Ain't So!

Quote:
Originally posted by john65b
It looks like Tripath may be dead...
Darnit, first Firefly and now this!

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Old 1st January 2007, 10:49 PM   #29
Pano is offline Pano  United States
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Quote:
Originally posted by pinkmouse
Pan, it may have gone walkabout if you posted whilst I was splitting
No worries, Mouse. Cal found it over in Texas.

Nothing that hasn't been said already.

I don't agree with Fokker about the sound of the amp, but I certainly agree about the market. It's not the tiny Audiophile or DIY market that can keep a company like Tripath afloat. Doesn't matter what the chips sound like. The general public doesn't care. But they are the market. The big chip makers are in a much better position to mass market their product.

Tripath made a good stab at it, I think. Whether the Tripath sound we like was design or accident, I hate to see them go under.
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Old 1st January 2007, 11:55 PM   #30
speaker is offline speaker  United States
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Quote:
Originally posted by panomaniac
It's not the tiny Audiophile or DIY market that can keep a company like Tripath afloat.
Absolutely correct,

The needed someone like Samsung stuffing them into every DLP set or mobile phone they made.
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