SEE-THROUGH HORN SPEAKERS
Hasehiro had received
requests mainly from young
adults for it very often at
the Audio Fair.
That's a smaller speaker for PC than MM-S
(Minimum MM-S type is MM-141S, and the size is
x H45 x D25cm.)
But commercial PC speakers are
So, Hasehiro hesitated to
produce the smaller back
Will it play low-tone range
even a short horn...?
Hasehiro designed it as about
two-thirds the size
|of MM-S type. (That is W12 x H35 x
can put it on the table and it doesn't provide a sense of
incongruity if put it aside
Hasehiro completed their first desktop
speaker UMU-131SS and he
mounted DIY Audio SA/F80AMG
Hasehiro inserted CD into the CD drive of PC,
and he drived it by
own small digital amplifier
First, he listened to bossa nova by
Floaty her voice, wind of saxophone blowing
through the space and
brilliant piano; UMU-131SS is
open and realistic sound quality in her
Hasehiro changed the speaker driver to other 8cm
drivers, but it
became languid sound from lack of low-tone
It seemed UMU-131SS has good chemistry with DIY
Anyone can enjoy dynamic 8 beat
bass if the drivers are DIY Audio
and that is magna-guard video shielding
UMU-131SS is a reasonable feeling of the
massiveness of sound and
|the low-tone range compared|
maybe that's just as well
if the owner listen to music
operate a PC.
Above all, UMU-131SS has
Hasehiro got into the sound.
heard the song called
Ayaka Hirahara when
he operate a
|This song is so dolce music of an unhurried
singing voice with clear-cut sweet notes of a
UMU-131SS played realistic about the vibration of
tight harp strings.
Visitors said "Is the
sound from a PC?!"
It was hollow
note like harped with gloved fingers when they hear this song
through closed-box small speakers with the same
Hasehiro's first desktop speaker UMU-131SS was
to enjoy even smaller backloaded horn speaker as home
The undertone was deeper than Hasehiro thought, and
of UMU-131SS is its sense of speed and its
Hasehiro came up with a unique idea
one has cherished for many years once
backloaded horn speaker.
enjoy the exponential curve, too.
The side baffle
boards are clear
acrylic board 10mm thick,
a transparent bond.
this idea since olden days, but acrylic board is costly so he
couldn't use it to their previous big
Hasehiro had a tricky issue.
They glimmer like
if looked at from different angles
glimmering transparent bond scars.
|by refraction of light. (See the
Hasehiro looked for the dissoluble
through professional company,
but he couldn't find
He tried a transparent double-stick tape.
also glimmers and lack of adhesion strength.
It's too roughly made if he bolt the side
Because the side baffle boards are
Gilded bolts and nuts are
found the amazing thing in a storehouse of a
wholesaler, and he decided to make the second
prototype once again.
by a different color...
based on the color of
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