Click here to go back to the  MAIN  PAGE  at  http://www.affordablevalvecompany.com
 

 
Draft of sales literature for £2,500 or £1,800 speakers
 

 
Warning about our £2,500 or £1,800 speakers
1. Our speakers do NOT have any grilles.  Most grilles usually affect the treble, badly !
2. Our speakers look lovely from 6 feet away.  The joints of the cabinets are strong,
    but they look slightly untidy.  You will NOT notice this cosmetic problem from your "listening" chair.
3. It is a new model, and production has not yet been "geared up".
    The delivery time for our new speakers is about 3 month.
    (We will NOT charge your credit card, until we dispatch the goods.)
    (The delivery time for our established line of valve amplifiers is normally 7 days to 10 days, for most of the year, but not for Christmas.)

 
£2,500 or £1,800 ?
If you buy the speakers at "roughly" the same time as our amplifier,
we will give you an extremely generous discount and charge you £1,800.
If you buy the speakers to use with our competitors amplifiers,
then we will charge you the full price of £2,500.
(Why should we sell you speakers to make our competitors amplifiers sound better ?)
If we had a better finish, a grille and a famous brand name
then these speakers will sell for £6,000 to £10,000.
As a matter of fact, we challenge you to
audition our £2,500 speakers driven by out KT88 valve amplifiers
against £10,000 speakers driven by transistor amplifiers !
We will refund your money (less £100 return carriage, within 30 days of purchase)
if you think that £10,000 speakers driven by transistor amplifiers
sound better !
As we keep saying "Price is not a guarantee of sound quality" !

 
 
 
 
 
 
 
 
 
Features of our £2,500 or £1,800 "10 inch High End" speakers
or
(  10 inch woofers versus the "typical" 6.5 inch drive units  )
 
Features of our £2,500 or £1,800 speakers

1 inch high end tweeter with massive magnet

4.5 inch dedicated midrange drive unit

10 inch dedicated woofer

Crossover in separate non magnetic aluminium box,
with custom made polypropylene capacitors
and heavy duty "transformer style" inductors.

Tri-wiring with heavy duty half inch thick professional cables.

Insides of cabinet has many partition
to strengthen the external walls,
and make the inside of the cabinet
into a more irregular shape.

The speaker on the left is a "typical" £300 speakers.

The non magnetic aluminium box 
(at the bottom of the picture)
is our crossover that weighs 5 kilogram.
A pair of our crossover probably weighs as much as
the "typical" transistor amplifier !
This is a SERIOUS "High End" speaker !

Please compare the size of the heavy duty
tri-wiring cable and massive Neutrik plugs
(resting at the top of our speaker)
with the "typical" £300 speaker (on the left)
This is a SERIOUS cable, and it is FREE !

 
 
Terminology used in this article
"tweeters" produce the treble (cymbals, etc)
"midrange drive units" produce the midrange (human voices, etc)
"woofers" produce the bass (bass drums, double bass, etc)
"bass/mid drive units" produces the bass and midrange.
This is a reasonable compromise for cheaper speakers.

 

 
 
Features of our £2,500 or £1,800 "10 inch - High End" speakers
 10 inch dedicated woofer to produce the bass (e.g. bass drums)
10 inch woofers are 3 times bigger than 6.5 inch bass/mid drive units !
10 inch woofers are 3 times bigger than 6.5 inch bass/mid drive units,
when you ignore the "useless" metal frame and part of the "useless" surrounds
and calculate the AREA of the MOVING cone.
10 inch woofers are still smaller than 22 inch Kick Bass drums,
but 10 inch woofer are 3 times more capable of reproducing Kick Bass Drums
than 6.5 inch bass/mid drive units !
 4.5 inch dedicated midrange to produce the midrange (e.g. human voices)
Our 4.5 inch midrange is a better match for the modern 1 inch tweeter
Modern 1 inch tweeter are marvellous, because they can go up to 20,000 Hertz
(which the generally accepted limit of human hearing).
Unfortunately, tiny 1 inch domes cannot handle bass drums,
so you to filter out the bass with a crossover at about 4,000 Hertz.
If you have a 4,000 Hertz cross over, it mean than
half of the 4,000 Hertz goes to the tweeter,
and half of the 4,000 Hertz will go to the midrange.
Even at 8,000 Hertz, a fair amount of 8,000 Hertz will go to the midrange.
The midrange must be able to cope with 8,000 Hertz
(even though the cross over frequency is 4,000 Hertz !)
Some 6.5 inch bass/midrange drive units with Kevlar cones, Carbon Fibre cones or glass fibre cones
has an uneven jagged frequency response between 4,000 to 8,000 Hertz,
caused by severe cone break-up.
Our 4.5 inch midrange is smaller, has less cone break-up at high frequency,
and it will go smoothly up to 8,000 hertz, before falling away gracefully,
without any jagged frequency response , without any severe cone break-up.
The result is very audible. You have our money back guarantee (less £30 return carriage) of:-
1. Greatly reduced and well controlled sibilance on female voices !
      (Sibilance is when words like "his" sound like "Hissssssk")
2. Our midranges do not have resonance around 4,000 Hertz to 8,000 Hertz,
    so our speakers do not sound artificially bright, and irritating !
3. Sweet treble. Sometimes, people wrongly blame the tweeter, when they should be blaming
    the terrible frequency response of the midrange at 4,000 Hertz to 8,000 Hertz !
1 inch tweeter with massive magnet to produce the treble (e.g. cymbals)
Sophisticated cross over that come in a non magnetic aluminium box
measuring inch x inch x inch and weight ??kilograms !
This is about 10 time heavier than the "typical" cross over for the "typical" speakers !
Features of our sophisticated crossover
Most of the capacitors are BIG EXPENSIVE high voltage polypropylene capacitors made especially for us
Big heavy duty "Air cored" inductors for tweeters.
"Air cored" inductors for woofers have will have a DC resistance of almost 1 ohm,
and will affect the Q of the woofer dramatically (i.e. encourages boomy bass)
For our woofers, we use BIG EXPENSIVE inductors that look like small transformers !
These big inductors will NOT overload and "saturate".
These is essential for LOUD CLEAN DEEP bass and LOUD clean midrange !
The low DC resistance will help to keep down the Q of the woofer, for TIGHTER bass without boom.
"Hose pipe" size professional tri-wiring cable.
( Flimsy silver cables are a waste of money, and affects the frequency response badly ! )

 
 
6.5 inch bass/mid drive units produces "blur" voices when reproducing a loud bass drum
The "typical" modern speakers uses one or two 6.5 inch bass/mid drive units.
6.5 inch bass/mid try to produce BOTH the bass AND midrange AT THE SAME TIME.
This is a reasonable compromise for cheaper speakers.
This is a reasonable compromise, when you are trying to produce £300 speakers.
It is cheaper to use ONE drive unit to produce the bass AND midrange.
There isn't ANY SONIC ADVANTAGE in producing £1,000 to £6,000 speakers
with 6.5 inch bass/mid drive units !
There is a limit to what you can do with small cars and small 6.5 inch bass/mid drive units.
6.5 inch bass/mid drive units CANNOT produce
LOUD DEEP bass drums AND "crystal clear" human voices AT THE SAME TIME.
When a LOUD bass drums starts, human voices becomes so blur that you cannot hear the lyrics of the song.
This is NOT a problem with BIG 3 way speakers like ours.
Human voices becomes clearer, when you turn up the volume !
Human voices come out of our 4.5 inch dedicated midrange.
Bass drums come out of the dedicated 10 inch woofer,
so the bass drums do not interfere with the 4.5 inch dedicated midrange,
producing the human voices !

 
 
 
 
 

 

 
The bass of 6.5 inch drive units versus 10 inch dedicated woofers
There is a limit to what you can do with small cars and small speakers.
It does NOT matter if the small speaker cost £300 or £6,000,
small speakers CANNOT produce LOUD DEEP bass in LARGE rooms !
Please ignore inexperienced reviewers, who do NOT own BIG EXPENSIVE speakers,
who WRONGLY say that small speakers have good bass.
It is always a struggle for loudspeaker designers
to try and get DEEP bass out of 6.5 inch bass/mid drive units,
so they try to get as much bass as possible out of 6.5 inch drive units.
This results in a "high Q" of 1 or more and a "bass hump" of 3 dB.
In layman's term, lousy boomy bass !
6.5 inch bass/mid drivers give you the choice between
            not enough bass (with low Q of 0.7 or less)
       or "boomy" poorly defined bass (with high Q of of 1.5 or more, and a "bass hump" of 3 dB)
Our 10 inch DEDICATED WOOFER is 100% dedicated to bass,
and will produce the CORRECT amount of bass WITHOUT ANY BOOM in MOST rooms.
We send a demo CD called "Sound Check 2" with a recording of a drum kit.
We challenge you to reproduce the drum kit at REALISTIC LIFE SIZE volume
on your 6.5 inch bass/mid drive units.
We will refund your money if you do not think that the drum kit at REALISTIC LIFE SIZE volume,
sound 10 times more realistic AND EXCITING on our MASSIVE 10 inch woofer.

 
The BEST Bass definition in the world
Our MASSIVE 10 inch woofer in a MASSIVE well designed cabinet
has one of the BEST bass definition in the world (regardless of price !)
Money back guarantee (less £30 for return carriage) that :-
        1. You can CLEARLY hear the difference between
                  Kick Bass Drum versus Electric Bass Guitar
                  Tympani versus Double Bass
                  PLUCKED Double Bass versus BOWED Double Bass
             We challenge you to find ANY 6.5 inch bass/mid drive unit  (regardless of price or hype)
              that enables you to CLEARLY hear the above mentioned difference !
             We challenge you to find ANY other speaker or subwoofer  (regardless of size, price or hype)
             that enables you to CLEARLY hear the difference between
             PLUCKED Double Bass versus BOWED Double Bass
       2. You will hear the Bass Player going up and down the musical scale, without losing the lower note !
       3. Church Organ sounds 50% as good as the real thing.
           This is far from perfect, but 6.5 inch bass/mid drive units are 10 times worst !
       4.  There is absolutely NO boom,
            if you put the speakers 12 inches from the rear wall, and 2 feet (or more) from the side wall.
Our MASSIVE cabinets do NOT boom because
1. There is a lot of bracing inside the cabinet.
    This is why the cabinets are so heavy !
2. About 80% of the cabinet is filled with sound absorbent,
    to absorb and reduce "standing wave" and "organ pipe" resonance.
    When you look inside a MASSIVE cabinet that booms, you will find that
    our competitors have tried to save some money
    by leaving out the bracing and sound absorbent !

 

 
Realistic believable human voices
Please ignore the stupid whining of Hi Fi Reviewers about how violins sound like.
I doubt if the reviewer have ever heard a real life Stradivarius played by a world class violist,
to be able to tell how a real life violin actually sound like !
Over thousands of years, human have evolved to heard and understand speech.
You can tell the difference between a male voice and a female voice.
You can hear a person's regional accent.
You can hear if someone is being sarcastic, by the tone of his voice !
It is really difficult for a a Hi Fi set to trick you into believing that the human voice is real !
Money back guarantee (less £30 return carriage) that our £1,800 speakers
driven by our £1,000 "KT88 Triode Connection - Lim Signature" or £1,450 "KT88 Triode Connection - High End"
will fool you into believing that the singer is standing beside (or between) the speakers
when you adjust the volume to a REALISTIC life sized volume,
using a good "live" recording and about 50% of "studio" recording !
Some EXPENSIVE High End system costing £10,000 to £100,000 can do this trick with good "live" recording,
but our modestly priced £2,800 to £3,250 High End system + your existing CD player or record player
can do this trick with with good "live" recording AND ABOUT 50% OF "STUDIO" RECORDING !
Your money refunded (less £30 return carriage) if we are lying !

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
Cymbals sound like EXPENSIVE musical instruments !
Musicians pay hundreds of pounds for ONE good cymbal. 
Surely, there must be a difference between a good cymbal, and a tin can !
There is !  And you can hear the difference with our EXPENSIVE "high end" tweeter with EXPENSIVE High End crossover.
Our High End crossover is so big that it comes in a separate non magnetic aluminium box measuring ?? inch x ?? inch x ?? inch
and weigh about ?? kg
Our sophisticated crossover versus simple crossover 
People who wrongly say that simple crossover are better do NOT understand :-
        1. how the fundamental resonance of drive units react with crossovers
        2. how the inductance of drive units react with crossovers
        3. how the "uncorrected" fundamental resonance and inductance of drive units
            react with valve amplifiers
We challenge any speaker with simple crossovers to a "shoot out" with our speakers.
If the simple crossover sound better, we will mention this in our sales literature, our website,
but not our expensive advertisements.  If we can get the typical 35% trade discount,
we will recommend and sell the winning speakers !
Money back guarantee (less £30 return carriage) that
our £1,800 speaker will produce the sweetest cymbals that you have ever heard,
and make you understand why musicians pay hundreds of pounds for ONE good cymbal !

 
 
 
 
 
 

Regardless of price !

Please ignore silly claims that the 6.5 inch drive units can move 12 mm !
6.5 inch drive units can only move 12 mm, if you prodded it with your finger,
Most 6.5 inch drive units can only move forward and backward by 3 mm, before distorting badly.
When I say distorting, I do NOT mean rattles or other really nasty sound.
I mean 5% to 10% distortion, so that human voices becomes VERY BLURRED !

We are not stupid enough to build a strong cabinet,
and then cut a big hole to mount a big flimsy piece of
plastic for the bi-wiring terminals.
We cut a small hole (about 1 inch) and mount a very strong Neutrik socket.
Sometimes, the Neutrik socket is reinforced with metal !

 
Click here to go back to the  MAIN  PAGE  at  http://www.affordablevalvecompany.com