Aug - AmericanRadioHistory.Com

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HI -FI AUTOMATIC
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AT LEADING HI -FI
MUSIC CENTERS
WRITE TODAY FOR COMPLETE LITERATURE
ERCONA CORPORATION
Electronic Dinsiu,
551 Fifth Ave., Dept. H9, New York, N. Y.
AUGUST 1955
dead singer, full and resonant, in a hall
in which one has heard the living
voice, partly due to the fine quality of
the reproduction. Most of the aria was
under the one watt level, a climax hit
ten watts for a moment. Three piano
recordings which probably are very
satisfactory at home did not have the
quality I felt was needed for the hall.
Piano solo (around mf) required only
about two watts, and a Mozart concerto
called for ten watts in the fuller passages
and stayed around four warts most
of the time the orchestra was playing.
Some excellent sound effect, percussion,
and solo instrumental sounds
were also low wattage items on the
whole.
Two ideas stick in my head as a
result of the afternoon. The most
power Mr. Briggs needed was a couple
instants of eighty watts in the loudest
parts of the EMI tape. Therefore if
this is all it takes to produce a solid fJ
in the Festival Hall, one would assume
that with reasonably sensitive speakers
an amplifier with a peak output of
around forty watts is plenty for any
normal home application, and smaller
rooms can be filled with all the sound
their air space can take by the medium
class amplifiers (rated output around
r o- r5 watts) which are most popular
in England. I wonder if enthusiasts do
not use high levels (and thus, high
wattage) in an attempt to get a sense
of "the whole room playing" ( to steal
a phrase from Columbia) ? The most
effective of Mr. Briggs's recorded
items was the Vaughan Williams Sea
Cpmphony [British Decca LXT 2907]
with recorded choir and orchestra playing
with live organ, for the sound of
the speakers was then just a part of a
larger mass of sound radiating out
from the organ pipes across the back
of the stage, and the special effects
which had been missing in the EMI
rape were suddenly restored. If I may
intrude into the final words of this report
a conclusion from my own researches
this year, in music, the ear
wants to hear sound coming from
more than one source, and no one
speaker system, however high its
volume level, will ever satisfy it. In
other words, the spatial effects one
may desire often are to be secured, not
by getting a more powerful amplifier,
but by acquiring a second speaker
system.
Ili . . . Mr. Ili Fi
Titis is It . . .
The BRADFORD
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Radically new idea In loudspeaker enclosures.
Not a bass reflex or folded horn.
The primary purpose of a loudspeaker enclosure
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front and rear waves. emanating from both sides
of the speaker cone. merge.
It is obvious that no rear waves can escape
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.Since this action ronforms lo an ultimate
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BAFFLE is the only enclosure that ran gire you
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And that, specifically, Is ...
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ANY SPEAKER. Accommodates any speaker .. .
any size. weight, shape or make.
NO TUNING. No part turning or speaker matching.
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NO RESONANCES. No false cabinet or air resonances.
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INCOMPARABLE CONSTRUCTION.
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Prices slightly higher West of Rockies.
*Patent pending.
BRADFORD
PeVece
BRADFORD &
BAFFLE
COMPANY
315 East 6th Street NEW YORK, N. Y.
s