| Thank you for your e-mail. We should have eBay listing for the £400
'original Chinese version' of the loudspeakers and £800 'modified
in England' version of the loudspeakers
Many British homes are carpeted, and that makes the huge difference
to the sound.
The £400 "original Chinese version" of the loudspeakers should
work fine, in a 10 feet by 10 feet room, WITHOUT CARPETS.
If you put the £400 original Chinese version in a CARPETED ROOM,
some (but not all) British hi-fi enthusiast (who have different taste
to Americans and their loudspeakers, Japanese and their loudspeakers, French
and their loudspeakers, Chinese and the loudspeakers, ....)
might (or might not) complain of too much booming bass.
We charge £200 to tune the bass of the loudspeakers,
so you get a little bit less bass, but a deeper bass, that is 100 percent
boom free.
Absolutely no boom in the bass whatsoever.
You can listen to the VERY DEEP , VERY CLEAN , VERY TIGHT bass for
10 hours, and still want to listen some more.
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We charge another £200 to put in a 'British notch filter tuned
to the resonance frequency of the tweeter'
This takes a bit more explaining.
The treble of many MODERN British loudspeakers sounds harsh in large
rooms.
30 years ago, at the height of the British loudspeaker industry (and
design),
most British audio engineers would put in
complicated sophisticated 18 decibels per octave or even 24 decibels
per octave cross over for the tweeter.
This helps to keep the mid range out of the tweeter,
so that tweeter is not overloaded by the mid range,
and the tweeter sounds fine, even when you turn up the volume.
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What has gone wrong is that the British loudspeaker industry (and design)
is a small shadow of its former self,
and many of the tricks that the British audio engineer learnt 30 years
ago,
seems to be forgotten. This sounds unbelievable until I explain that
most of the VERY FAMOUS British brand of loudspeakers are owned by Hong
Kong people, and many of these speakers are made in China.
Just because you are paying British prices, it does not mean that you
are supporting British industry.
Our MODIFIED IN ENGLAND speakers are much more British than those VERY
FAMOUS ?British?Branded? speakers
Many modern British loudspeakers (from £180 to £13,000)
will use a capacitor for a 6 decibels per octave cross over for the tweeter.
One famous British brand was boasting that it uses a capacitor for a 6
decibels per octave for the VERY expensive range of speakers ! That just
would not have happened, 30 years ago, at the height of the British loudspeaker
industry ( and design).
The graph on page 254 in Mr Martin Colloms excellent book
'High Performance Loudspeakers' 5th edition explains
why a simple one capacitor 6 dB per octave crossover can cause problem.
It also explain how to use notch filter and zobel network to solve
the problem.
One capacitor for a 6 decibels per octave cross over for the tweeter
is a terrible idea,
because it allows too much mid range to get into the tweeter, overloads
the tweeter, and the tweeter becomes very harsh.
The modern-day method of trying to avoid complicated sophisticated
cross over, notch filters, etc is to squirt ferro fluid (thick viscous
oil + iron filing) into the tweeter. Unfortunately, that does not work
because .... (please read the grey box below).
Limitations of Ferro Fluid
When you turn up the volume,
the voice coil and ferro fluid (thick viscous oil + iron filings)
will get hot,
the ferro fluid (thick viscous oil + iron filings) will become thin
and runny,
the dampening effect reduces,
and the impedance peak (might be 20 ohms) at the resonance frequency
reappears.
So, the 8 ohm crossover does not work very well,
allows the midrange to reach the tweeter,
and overload the tweeter,
and the tweeter becomes harsh.
Essentially, many British loudspeakers (from £200 to £13,000)
will overloads its tweeters, and sounds harsh in 20 feet rooms.
Most of the Chinese loudspeakers that we sell uses 12 decibels per octave
cross over for the tweeter,
which is better then 6 decibels per octave cross over. Fifth for have
but it is still not enough for 20 feet room
We add a ' British notch filter tuned into the resonance frequency of
the tweeter',
that prevents more of the mid range from reaching the tweeter and overloading
the tweeter,
so the tweeter can go louder, and is suitable for 20 feet rooms
-------------
IF YOU HAVE 20 FEET ROOM, WITH CARPETS,
HE £800 MODIFIED IN ENGLAND VERSION
SOUNDS TOTALLY DIFFERENT
TO THE £400 ORIGINAL CHINESE VERSION.
-------------------------------
40 years ago, at the height of the British hi-fi industry (and British
hi-fi magazines)
British hi-fi magazines had a more enlightened methodology for making
recommendations for hi-fi system upgrades.
It was simply to determine the 'weakest link' of the 'hi-fi chain'.
Which is usually the loudspeakers. Just look at the lousy frequency
response of loudspeakers at 20 watts (not the typical 1 watt measurement),
lousy distortion at bass frequency at 20 watts, lousy waterfall curves
(cumulative spectral decay).
Then we had 'media hysteria' recommending that you spend almost all
the hi-fi budget on the turntable (nowadays CD players), and make do with
cheap speakers.
Please concentrate more on the speakers, and less on the CD player or
turntable and amplifiers. And do not even waste your time pondering about
cables, equipment stands and snake oil.
If your e-mail is about the £400 version, you probably do not
want to pay £800 for the speakers.
Maybe, we can come to a compromise, please look at our eBay listing
for a £900 bundle of £650 speakers + £250 valve amplifier,
for the section that says that REALISTIC human voices will EASILY beat
our best electrostatic speakers.
Treble that will easily beat our best electrostatic speakers. Of course,
the 10 inch woofer will EASILY beat all popular British speakers below
£2000.
---------------------------
QUESTION = how well they perform compared to, say, floorstanding AE
speakers (which I understand do sound very good with your amps) or perhaps
to Monitor Audio SR6s? Your £400 pair, with massive 10 inch woofers,
will sound much better in the bass I feel sure, but would they sound as
nice overall?
MONEY BACK GUARANTEE (less £60 or £30 or overseas shipping
charges, within 30 days)
if you disagree with any of the following claims.
£180 Sony CD player (with a carousel for 300 CDs)
+ our eBay listing for a £900 bundle of £650 speakers +
£250 valve amplifier
+ the FREE interconnects and FREE loudspeaker cables
when compared with
floorstanding AE EVO 3 or Monitor Audio RS6 or any price, any hype speakers
with one or two pieces of six inch woofers
+ any price, any hype, any valve amplifier or any transistor amplifier
or any valve/transistor hybrid amplifier or any digital amplifier
+ any price, any hype, any CD player or any turntable and cartridge
+ any price, any hype, any interconnects , any loud speaker cables
The result will be
The bass of our £650 speakers will be 10 to 100 times better (depending
on how fussy you are)
( Much much deeper. Much less boom free. Attack and decay of bass note
is as perfect as it and can be.)
( You can hear the bass tune played by the bass guitarist or acoustic
bass,
and not a one note boom (that could be anything) from 6 inch speakers
(regardless of the fancy prose in hi-fi magazines)
The most important sound on the CD of your favourite singer, is the
voice of favourite singer.
Our eBay £900 bundle of £650 speakers + £250 valve
amplifiers
will trick you into believing that your favourite singer is in your
living room
10 times to 100 times better (depending on how fussy you are)
(Please read the part of our eBay listing that describes how EASILY
AND CONCLUSIVELY human voices 'out classes' our best electrostatic speakers,
which is 50-year-old technology)
( The design of the cone is all about reducing resonance / cone breakup,
and trying to dampen any resonance/ cone breakup)
( For the SAME WEIGHT, paper is much more rigid than aluminium )
( When it comes to 'mechanical loss' and how fast unwanted resonance
/ cone breakup is dampen,)
( paper is much superior to aluminium. Tap a piece of aluminium and
it rings for long time. )
( I agree that if you could coat an aluminium cone with one millimetre
of LARGE CERAMIC CRYSTALS,)
( then that cone might produce some interesting results.
( If you anodise a piece of aluminium, and you get a microscopic layer
of aluminium oxide, )
( it would be absurd to claim that a MICROSCOPIC layer of aluminium
oxide has MATERIALLY strengthened the aluminium.)
In a nutshell,
our coated paper cones are stronger and better dampened than aluminium
cones.
So, our coated paper cones is is reproduces and voices 10 times to
100 times better.
Most of our competitors do not give any solid technical reasons on how
they have solved the problem of keeping mid range out of the TINY 1 inch
tweeter, so that the 1 inch tweeter can go loud enough for 20 feet room.
I expect that our tweeter + our MODIFIED IN ENGLAND 'British notch filter
tune to the resonance frequency of the tweeter"
to produce sweet treble, without overloading, without harshness in
20 feet rooms,
about 100 times better than most of our competitors (especially competitors
who boasts about using one capacitor for six decibels per octave cross
over for the tweeter selling speakers for £200 to £13,000)
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