RE: The definition

Posted by pictureguy (A) on June 26, 2012 at 11:53:30

In Reply to: RE: The definition posted by Ralph on June 26, 2012 at 11:08:31:

Yes, charging caps for bursts is easier than full-time high current supply neede for 'a' operation.
I did note the headroom idea in my first reply::

However, don't count out a/b just yet. My favorite example would be back to the Pass amps.
The xa30.5 and the x150.5 are very similar. I don't know how 'under the skin' this goes, but they each weigh about 75lb.....and are both offered as integrated amps. I suspect the major difference is in bias PS and how that is managed.
The 'a' amp? Stereophile got about 100 a side while the 150 was honestly rated. Remember me at Christmas.

Now, a question for 'ya.
My 'd' amp is rated at 250rms, yet that is for 60 seconds. the FTC rating is much lower.
Now, do you call that headroom or specsmanship or ??? The amp uses B&O modules with included SMPS.

I'd also think that unless you were simply a fan of 'a' amps, that listening and intended use would be one of the arbiters of amp choice. I know I never tap the RMS part of my amp, regardless of how it's rated. I may use 20 RMS and allow for a 10x peak factor. Easy for the amp and it never warms. (4 ohm panels)
Too much is never enough

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Follow Ups Full Thread

Topic - What is Headroom and how can it be described? - airtime 09:52:47 06/26/12 (21)

Baggy Underwear - dtz 10:44:27 07/02/12 (0)

So then it sounds more like the PS slew rate and uf capacity - airtime 08:58:55 06/27/12 (0)

RE: What is Headroom and how can it be described? - abs1 21:52:56 06/26/12 (0)

Not really a measurement - G Squared 20:14:12 06/26/12 (3)

but it can be measured for sure :) - Penguin 16:18:25 06/28/12 (2)

Agreed, but - G Squared 13:22:20 07/02/12 (1)

Funding ??? - Penguin 17:02:08 07/03/12 (0)

The prior answers are too narrow... - mls-stl 17:33:09 06/26/12 (0)

Headroom can be for voltage amps and EQ as well as amplifiers...........s - Interstage Tranny 15:55:48 06/26/12 (0)

High current - Sordidman 13:25:27 06/26/12 (0)

When I think of the term... - mkuller 12:15:39 06/26/12 (1)

RE: When I think of the term... - Sondek 14:11:40 06/26/12 (0)

RE: What is Headroom and how can it be described? - FenderLover 12:03:36 06/26/12 (0)

RE: What is Headroom and how can it be described? - Jack G 11:01:51 06/26/12 (0)

RE: What is Headroom and how can it be described? - pictureguy 10:15:27 06/26/12 (6)

The definition - Ralph 10:27:32 06/26/12 (5)

RE: The definition - pictureguy 10:31:31 06/26/12 (4)

RE: The definition - Ralph 11:08:31 06/26/12 (3)

RE: The definition - pictureguy 11:53:30 06/26/12 (2)

RE: The definition - Ralph 12:43:15 06/26/12 (1)

RE: The definition - pictureguy 13:52:11 06/26/12 (0)

Follow Ups

RE: The definition - pictureguy 11:53:30 06/26/12 (2)

RE: The definition - Ralph 12:43:15 06/26/12 (1)

RE: The definition - pictureguy 13:52:11 06/26/12 (0)

RE: The definition

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