A Audio, hi-fi and car audio  forum. Audio Banter

Go Back   Home » Audio Banter forum » UK Audio Newsgroups » uk.rec.audio (General Audio and Hi-Fi)
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

uk.rec.audio (General Audio and Hi-Fi) (uk.rec.audio) Discussion and exchange of hi-fi audio equipment.

how good are class D amplifiers?



 
 
LinkBack Thread Tools Display Modes
  #101 (permalink)  
Old May 15th 07, 01:09 PM posted to uk.rec.audio
Keith G
external usenet poster
 
Posts: 7,388
Default how good are class D amplifiers?


"Nick Gorham" wrote



Have a look on your pipex pages, I have left pipex now,



Hah! Tell me about it....


so I can't tell
you what they should be. It will be something like

address: dslftp.dsl.pipex.net
username: your pipex username
password: your pipex password



I'm 'up there' OK but I can't see any files or folders yet - maybe it's the
freebie 'CoffeeCup' software...??

It'll sort.....





  #102 (permalink)  
Old May 15th 07, 03:02 PM posted to uk.rec.audio
Arny Krueger
external usenet poster
 
Posts: 3,850
Default how good are class D amplifiers?

"Keith G" wrote in message


Asitappens, I've made no comments on comparative sound
'quality' between these two systems elsewhere, either -


The myth here is that one comments on the sound of a system in a total
vacuum - no reference to any other system or live music ever heard.


  #103 (permalink)  
Old May 15th 07, 03:16 PM posted to uk.rec.audio
Laurence Payne
external usenet poster
 
Posts: 522
Default how good are class D amplifiers?

On Tue, 15 May 2007 14:05:54 +0100, "Keith G"
wrote:


The problem for both of us is lack of continuity due to lack of opportunity
atm. Those recordings are virtually all *first takes* for both of us - Swim
is rusty by about 10 years on the clart and over 20 years on the piano (or
was) and I'm new to recording anyway, so it's a series of 'Square One'
starts atm and there hasn't been anything newer to replace those early
attempts yet.

There's no rush, it'll sort in time...


So what DO you do with all those microphones and other recording gear?
At:
http://www.apah69.dsl.pipex.com/myhifi/myhifi.htm

you list a pair of Oktavas, a pair of SE1As, a pair of LD condensers,
a ribbon mic, preamps........

That's a LOT of gear for someone who's barely started :-)
  #104 (permalink)  
Old May 15th 07, 03:29 PM posted to uk.rec.audio
Keith G
external usenet poster
 
Posts: 7,388
Default how good are class D amplifiers?


"Arny Krueger" wrote in message
. ..
"Keith G" wrote in message


Asitappens, I've made no comments on comparative sound
'quality' between these two systems elsewhere, either -


The myth here is that one comments on the sound of a system in a total
vacuum - no reference to any other system or live music ever heard.




The key words in my post (above) are 'no' and 'comments'.....


  #105 (permalink)  
Old May 15th 07, 03:45 PM posted to uk.rec.audio
Keith G
external usenet poster
 
Posts: 7,388
Default how good are class D amplifiers?


"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in message
...
On Tue, 15 May 2007 14:05:54 +0100, "Keith G"
wrote:


The problem for both of us is lack of continuity due to lack of
opportunity
atm. Those recordings are virtually all *first takes* for both of us -
Swim
is rusty by about 10 years on the clart and over 20 years on the piano (or
was) and I'm new to recording anyway, so it's a series of 'Square One'
starts atm and there hasn't been anything newer to replace those early
attempts yet.

There's no rush, it'll sort in time...


So what DO you do with all those microphones and other recording gear?
At:
http://www.apah69.dsl.pipex.com/myhifi/myhifi.htm

you list a pair of Oktavas, a pair of SE1As, a pair of LD condensers,
a ribbon mic, preamps........

That's a LOT of gear for someone who's barely started :-)




Not really - the Oktavas and ribbon weren't too cheap but the others weren't
expensive. The rationale is as follows:

Oktavas - mostly clart (stereo or mono)

SE1As - piano (stereo) at the end of the spindly booms

CAD GLXwhatever LDs - general, knockabout (very cheap but good)

Ribbon - mono clart, speech, fondling/admiring....

(I just like microphones! :-)

I also have a Samson multi-pattern USB mike for 'voice emails' which doesn't
seem to like this Nuvistor laptop I'm on atm (yet) - which is arse, because
half the reason for getting it was to be able to expand my 'scope' and get
*cleaner* recordings with the other mics, which is also not happening
yet..!!






  #106 (permalink)  
Old May 15th 07, 07:12 PM posted to uk.rec.audio
Arny Krueger
external usenet poster
 
Posts: 3,850
Default how good are class D amplifiers?

"Keith G" wrote in message

"Arny Krueger" wrote in message
. ..
"Keith G" wrote in message


Asitappens, I've made no comments on comparative sound
'quality' between these two systems elsewhere, either -


The myth here is that one comments on the sound of a
system in a total vacuum - no reference to any other
system or live music ever heard.


The key words in my post (above) are 'no' and
'comments'.....


Well, if you admit that you said comparative, then you're sunk. Oh, you did.
Sorry about that!


  #107 (permalink)  
Old May 15th 07, 08:52 PM posted to uk.rec.audio
Keith G
external usenet poster
 
Posts: 7,388
Default how good are class D amplifiers?



"Arny Krueger" wrote in message
. ..
"Keith G" wrote in message

"Arny Krueger" wrote in message
. ..
"Keith G" wrote in message


Asitappens, I've made no comments on comparative sound
'quality' between these two systems elsewhere, either -

The myth here is that one comments on the sound of a
system in a total vacuum - no reference to any other
system or live music ever heard.


The key words in my post (above) are 'no' and
'comments'.....


Well, if you admit that you said comparative, then you're sunk. Oh, you
did. Sorry about that!




I spend half my life sunk, but I've no idea what you are driving at - try to
build *positively* on the 'I like them both' bit I posted earlier....

(This is all very strange - I am 20 miles from my 'usual 'computer
place.....)





  #108 (permalink)  
Old May 15th 07, 10:47 PM posted to uk.rec.audio
Dave Plowman (News)
external usenet poster
 
Posts: 5,872
Default how good are class D amplifiers?

In article ,
Keith G wrote:
Nevertheless, thanks for that! I knew that useless little **** Plowie
(also Pipex, I believe) couldn't/wouldn't come up with the goods -
pointless *yap* is all he's any good for! :-)


You may have nothing better to do than sit on your computer all day, but
I'd only just got back home.

--
*Beauty is in the eye of the beer holder...

Dave Plowman London SW
To e-mail, change noise into sound.
  #109 (permalink)  
Old May 15th 07, 10:51 PM posted to uk.rec.audio
Dave Plowman (News)
external usenet poster
 
Posts: 5,872
Default how good are class D amplifiers?

In article ,
Serge Auckland wrote:
Knowing Keith's equipment, it comes as no surprise:-


His horns have a sensitivity of about 100dB/watt, so his 8 watts will
provide a level of around 109dB.


Full range?

His IMFs have a sensitivity of around 84dB/watt, so his 100 watt
amplifier will provide a level of around 104dB.


So, his 8 watt valve set-up will sound louder. This is before any
subjective loudness increase caused by higher distortion in the valve
set-up.


Keith made no claims as to which sound better (at least not in this
thread) only loudness.


A PA horn would sound louder still.

--
*Why don't sheep shrink when it rains?

Dave Plowman London SW
To e-mail, change noise into sound.
  #110 (permalink)  
Old May 15th 07, 11:02 PM posted to uk.rec.audio
Dave Plowman (News)
external usenet poster
 
Posts: 5,872
Default how good are class D amplifiers?

In article ,
Keith G wrote:
If you can't actually hear the
difference in quality between the first and last tracks on this sort
of LP


Yeah...??


Why are you commenting on this part of the thread since you refused to
give an answer to a straightforward question about it?


load them into your computer and look at them on a spectrum analyser.



You *are* kidding - right...???


No. I assumed you'd have such a programme given the money you spend on
mics etc and the amount of recordings you put on your site via a computer.


It's
quite revealing.



That certainly was (wot new?), but forget that stupidity and tell me
what is the correct Pipex 'hostname' and what 'username' it expects for
ftp transfers to my website - I've tried all the likely candidates and
it ain't having none of it...??


I haven't a clue as I don't have and never have had a website. Have you
tried asking Pipex if you've lost the paperwork?



I'm actually trying to think of one which has a reprise at the end
which might give an even more meaningful listening only comparison.



Streuth! You've obviously got no work on today.....


I've just come back from installing a new consumer unit at a friend's
place in Basingstoke. Have you done anything useful today apart from
whinging?

--
*A day without sunshine is like... night.*

Dave Plowman London SW
To e-mail, change noise into sound.
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 01:22 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.SEO by vBSEO 3.0.0
Copyright ©2004-2025 Audio Banter.
The comments are property of their posters.