What do you do with a *lively* room?
 

"Serge Auckland" wrote in message
...
Keith G wrote:
"Serge Auckland" wrote in
message ...
Keith G wrote:

Keith,

As one who *does* have a lifetime's experience of audio (and I'm only
now realising how little I know)there's nothing new under the (audio)
sun. Corner enclosures were very popular in the late '50s and '60s in
part for the reasons you state: i.e. using the room corners to boost the
bass, but also to keep them out of the way of furnishings. It was hard
enough for people to find room for one large 'speaker, but when stereo
came along, finding room for two was difficult. The WAF was as alive
then as now.



Serge, no-one is more aware that there's 'nothing new under the (audio)
sun' than me - my amps date back to the 20s and 30s (design) and my
speakers feature drivers that have been in *continuous production* for
the last 50 years in a design probably just as old!!


However, putting 'speakers in the corners won't make much difference in
a live room over putting them elsewhere. The problem with a live room is
reflections, which affect the mid and treble. Bass sees hard walls
whatever they are covered with unless you take special steps to create
bass traps. However, using single drive units, the treble will beam more
than using separate dome tweeters, and angling them as you have will at
least help keep the treble away from the walls.


Yes and the angled sides allow the air to move freely - I'm back to
thrumming doorframes here...!!


I have just received a copy of the 1959 Audio Year Book and a copy of
the July 1959 American "High Fidelity" magazine and they are full of
weird and wonderful enclosures trying to make stereo acceptable
domestically.


:-)


In spite of my long teeth, what's an OB 'speaker other than Outside
Broadcast?


Open Baffle - see the view down the back:

http://www.apah69.dsl.pipex.com/show/openbaffle.JPG


Also this, just to prove I can still do *handheld* at 1/8 of a second!!

http://www.apah69.dsl.pipex.com/show/obspeakers4.JPG

:-)


Thanks, I'd forgotten about open baffles. However, what you have isn't
really an OB if you put them in the corner. If it fits tightly in the
corner it will approximate to a sealed box, sometimes referred to as an
Infinite Baffle, but as the fit isn't likely to be airtight, you will have
some gaps, so it will work to some extent something like a Bass-reflex
cabinet, but with very indeterminate performance. An OB needs to be clear
of the wall, or sealed to the wall in which case it is an IB or, if
vented, then a bass-reflex.



Yep, in other words I'm *using* the room, like I said originally but it's no
way *sealed* - you could stand behind it!! There's no doubt it's very
effective what ever you might want to call it!! I don't say it's a permanent
arrangement - it has to beat the Fidelios to stay, for starters!!


Wharfedale used to do a
sand-filled open baffle with an upward firing tweeter, designed for
free-field siting.


Yes, when my friend P the T called earlier he started waffling about Briggs
and early Wharfedales!



You really should try a corner horn or Transmission Line someday.


It's in there with all the other little 'maybe projects'! ;-)

Now, have a go at this one - one of the *inimitable* Laurie Anderson's
tracks:

http://www.apah69.dsl.pipex.com/show/laurieanderson.mp3


Remember it's miked (silly cheap CAD GXL2400 large condensers at 49 quid a
pop from UKProAudio on eBay*) - there's a nice lot going on in there and I
think the single driver acquits itself rather well...!!??


* What? You thought they were Neumann U87s...?? :-)

What do you do with a *lively* room?
 

In article ,
Keith G wrote:
Yep, in other words I'm *using* the room, like I said originally but
it's no way *sealed* - you could stand behind it!! There's no doubt
it's very effective what ever you might want to call it!! I don't say
it's a permanent arrangement - it has to beat the Fidelios to stay, for
starters!!

As you move that type of speaker into a corner it will load the bass
somewhat - but not evenly. The frequency response will look like a dogs
hind leg...

--
*Heart attacks... God's revenge for eating his animal friends

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

What do you do with a *lively* room?
 

Keith G wrote:

Serge, no-one is more aware that there's 'nothing new under the (audio) sun'
than me - my amps date back to the 20s and 30s (design) and my speakers
feature drivers that have been in *continuous production* for the last 50
years in a design probably just as old!!

From what I've heard, they sound like it too !

Graham

What do you do with a *lively* room?
 

In article ,
Eeyore wrote:
Serge, no-one is more aware that there's 'nothing new under the
(audio) sun' than me - my amps date back to the 20s and 30s (design)
and my speakers feature drivers that have been in *continuous
production* for the last 50 years in a design probably just as old!!

From what I've heard, they sound like it too !

I can't remember the last single driver pro monitoring speaker, but the
BEEB had gone to a twin unit in the AM only days...

--
*I must always remember that I'm unique, just like everyone else. *

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

What do you do with a *lively* room?
 

"Dave Plowman (News)" wrote in message
...
In article ,
Eeyore wrote:
Serge, no-one is more aware that there's 'nothing new under the
(audio) sun' than me - my amps date back to the 20s and 30s (design)
and my speakers feature drivers that have been in *continuous
production* for the last 50 years in a design probably just as old!!

From what I've heard, they sound like it too !

I can't remember the last single driver pro monitoring speaker, but the
BEEB had gone to a twin unit in the AM only days...

--
*I must always remember that I'm unique, just like everyone else. *

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



I suspect (almost certain) that if I *bustled* I could have a pair of
LS3/5As here by noon today...

What do you do with a *lively* room?
 

"Dave Plowman (News)" wrote in message
...
In article ,
Keith G wrote:
Yep, in other words I'm *using* the room, like I said originally but
it's no way *sealed* - you could stand behind it!! There's no doubt
it's very effective what ever you might want to call it!! I don't say
it's a permanent arrangement - it has to beat the Fidelios to stay, for
starters!!

As you move that type of speaker into a corner it will load the bass
somewhat - but not evenly. The frequency response will look like a dogs
hind leg...

--
*Heart attacks... God's revenge for eating his animal friends

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



What the FR *might* look like is not my main concern - we're into the realms
of 'hit & miss' audio here. What is far more important is how they sound,
the bass has indeed been reinforced appreciably but whether I can *tune*
into the sound overall is another question - I still have not had any
opportunity for proper listening.

IOW, the jury's not even been selected yet.....

What do you do with a *lively* room?
 

In article ,
Keith G wrote:
As you move that type of speaker into a corner it will load the bass
somewhat - but not evenly. The frequency response will look like a dogs
hind leg...


What the FR *might* look like is not my main concern - we're into the
realms of 'hit & miss' audio here.

Heh heh. But if it *looks* like a dogs hind leg it will sound like it too.

What is far more important is how
they sound, the bass has indeed been reinforced appreciably but whether
I can *tune* into the sound overall is another question - I still have
not had any opportunity for proper listening.

Perhaps you're after that radigram 'one note bass' sound? It's what often
happens with open back enclosures. ;-)

IOW, the jury's not even been selected yet.....

Make sure it's twelve men good and true.

--
*See no evil, Hear no evil, Date no evil.

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

What do you do with a *lively* room?
 

In article ,
Keith G wrote:

"Dave Plowman (News)" wrote in message
...
In article ,
Eeyore wrote:
Serge, no-one is more aware that there's 'nothing new under the
(audio) sun' than me - my amps date back to the 20s and 30s (design)
and my speakers feature drivers that have been in *continuous
production* for the last 50 years in a design probably just as old!!

From what I've heard, they sound like it too !

I can't remember the last single driver pro monitoring speaker, but the
BEEB had gone to a twin unit in the AM only days...

I suspect (almost certain) that if I *bustled* I could have a pair of
LS3/5As here by noon today...

With a decent sub properly 'crossed over' they take some beating in a poor
room - they are one of the least position influenced designs. Assuming you
can find a pair still within spec. They aren't that long lived.

--
*Does fuzzy logic tickle? *

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

What do you do with a *lively* room?
 

Keith G wrote:



Miking them thus:

http://www.apah69.dsl.pipex.com/show/obspeakers3.JPG

Could I suggest Keith that if you want to demonstrate how the speakers
actually sound you should use a coincident pair at the listening
position. Close miking is for guitar amps.

Roy.

What do you do with a *lively* room?
 

"Dave Plowman (News)" wrote in message
...
In article ,
Keith G wrote:
As you move that type of speaker into a corner it will load the bass
somewhat - but not evenly. The frequency response will look like a dogs
hind leg...


What the FR *might* look like is not my main concern - we're into the
realms of 'hit & miss' audio here.

Heh heh. But if it *looks* like a dogs hind leg it will sound like it too.

What is far more important is how
they sound, the bass has indeed been reinforced appreciably but whether
I can *tune* into the sound overall is another question - I still have
not had any opportunity for proper listening.

Perhaps you're after that radigram 'one note bass' sound? It's what often
happens with open back enclosures. ;-)

IOW, the jury's not even been selected yet.....

Make sure it's twelve men good and true.

--
*See no evil, Hear no evil, Date no evil.

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



I have only recorded two CDs from the speakers and so don't have too much to
choose from, but these two clips are enough to tell me the bass isn't the
least bit 'one-note':

http://www.apah69.dsl.pipex.com/show/Sample%2004.mp3

http://www.apah69.dsl.pipex.com/show/Sample%2005.mp3


Or that there's any shortage of nice 'top end':

http://www.apah69.dsl.pipex.com/show/Sample%2008.mp3


Or clarity and detail...???

What am I missing? - The more I listen to these clips, the more I'm liking
the sound...