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  #11  
Old 03-23-2014, 12:36 PM
FastEddy FastEddy is offline
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Quote:
Originally Posted by Bodhisattva View Post
I've noticed Boulder haven't responded to emailed communications lately, so it's good you're posting some info Wizard so we're not completely in the dark....
I've never had trouble getting information from Rich Maez at Boulder so don't know what to say about this. I think Rich sometimes reads this forum so if you have questions maybe you should just post them.

Last edited by jdandy; 03-27-2014 at 11:22 AM. Reason: Edit quote at member's request.
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  #12  
Old 04-01-2014, 06:23 PM
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rich@boulder rich@boulder is offline
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Hi Guys,

I'm not sure what may have been going on with communications, but I haven't received any direct emails that have not been responded to (at least in the U.S.).

Last edited by Masterlu; 04-01-2014 at 07:38 PM. Reason: PM sent
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  #13  
Old 05-02-2014, 01:40 PM
Anatta Anatta is offline
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What is the 2160's input impedance?
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  #14  
Old 05-02-2014, 06:07 PM
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200k ohms, balanced (100k ohms per leg); 100k ohms unbalanced.
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  #15  
Old 05-03-2014, 09:42 AM
wizard wizard is offline
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What's the slew rate in V/uS of 2100 and 3000 amp series?
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  #16  
Old 05-03-2014, 11:49 PM
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rich@boulder rich@boulder is offline
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If I have an idea why you'd be asking about slew rate, I'd answer the question. Much like transformer kVA or damping factor, these are specifications that mean nothing on their own and were promoted as a way to play the specs game by a certain manufacturer in the '80s and '90s (they also liked to talk about maximum current delivery without telling anyone that a tweeter can be burned and smoked by even the smallest amplifier...) because that manufacturer knew that the average consumer had no idea what these specifications meant but they could be bandied about by both dealers who knew the consumer had no idea what they meant and the consumer who wanted to try to make some sort of qualitative judgement based on a numbers game. The highest slew rate in the world doesn't guarantee any specific type of performance parameter any more than the highest tire pressure means anything by itself when choosing a car. Simply looking at the distortion levels of any of our amplifiers at high frequencies and maximum power will indicate that they have enough voltage slew to handle just about any AUDIO-BASED signal you throw at them.

In short, the hundreds and hundreds of design decisions made in the overall topology and scheme of the amplifier as a whole make the product. So if you ask what the slew rate is because of ______, it'll lead me to understand exactly what it is you're trying to find out.
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  #17  
Old 05-04-2014, 08:53 AM
Still-One Still-One is offline
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Rich
I appreciate your response. As a non-technical type I am more concerned about the end result than worry about what the numbers your engineers have been working towards.

That said it would be hard for anyone to look at your gear and believe corners have been cut anywhere in the parts quality or industrial design of your products.
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  #18  
Old 05-04-2014, 12:14 PM
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High damping factor specs is so yesterday...

I'm a techie, and when I select components I see the specs as a whole.
I ask the manufacturer about the missing specs that I need, they tell me, but some don't - and say that the specs is good enough for you and won't tell.

This attitude will maybe work for most of the audiophiles, but for the most extreme audiophiles it will not work - we will loose interest in the product quickly.
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  #19  
Old 05-04-2014, 12:20 PM
Still-One Still-One is offline
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I don't hear specs I heard the end result. Couldn't care less what the specs are.

Maybe that is the problem with the "most extreme audiophile" they are into the product and not the sound of the music.
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  #20  
Old 05-04-2014, 12:31 PM
wizard wizard is offline
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Quote:
Originally Posted by Still-One View Post
I don't hear specs I heard the end result. Couldn't care less what the specs are.

Maybe that is the problem with the "most extreme audiophile" they are into the product and not the sound of the music.
For me the specs and the sound of the component is important.
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