SPEC Technical Philosophy
We aim to manufacture best amps to experiencemusic. The sound full of “MUSICALITY” faithfully
reproduces the artistry of the performer. Themusicality can be achieved by the tone as close as
possible to the actual sound and the drive ability tofollow the change without delay.We make anamplifier that is closest to the world's most realistic
sound.

An amplifier is a musical instrument
Woods are not for appearance , but musical instrument itself.

The top of a violin

The back and ribs

Like a musical instrument , woods vibrate with music andcreate inspirational sound.

It’s a minute signals to reproduce "Musicality"

A harmonic
wave degree

A harmonic
wave degree

Harmonics(Violin)

Harmonics(Oboe)

Music sounds contain an enormous amount of detailed
harmonic signals, which form a beautiful tone color.
Especially, the tone of the violin contains sharp
waveforms.

On the other hand,basics of spatial
expression is stereophonic. Then,thebasic of stereophonic is slight signal
differences between left and rightchannels.

SPEC takes special concern in thefaithful representation of minute audio signals.

PURE DIRECT SYSTEM for minute signals
The SPEC PURE DIRECT SYSTEM
amplifies all those minute and steep signals
accurately without exception.

Transmission at large level does not lose minute signals.

It's an analog amplifier
The PWM-based amplifier can be said an analog amplifier because
the amplitude value is amplified maintaining infinite resolution.

Music is always changing

SPEC takes special concern in the DYNAMIC
DRIVE ABILITY to follow changes.
SPEC doesn’t take concern in the Static characteristics. Many
specifications measured with a 1 kHz continuous signal hardlyrepresent the sound quality. Because music is constantly
changing,the speaker drive ability to follow the changes
enables highly musical reproduction.

Class D is the most suitable for dynamic drive
Class D is the most suitable method for reproducing minuteaudio signals and dynamic drive ability.
Class D has a very high ability to drive thespeakers since the impedance of the final
device is very low in principle.

Speaker generates back electromotive force(EFM), disturbing
accurate drive.

Class D drives the speakers more dynamicallyand accurately, absorbing the back EMF.

A small FET amplifies the music signal directly.
A very smallFETs
by Infineon
Technologies
amplify musicsignal up to300W amplitude.
Simple and small circuit enables the sound with highspeed and highly clear tone. Furthermore,it is due toFETs almost completely prevent heat generation.

As it doesn’t generate heat…
"No Heat" allows the amplifier to be hermetically sealed andmakes it possible to attach wood to an amplifier.
We can use wood in close
contact with the chassis.
A sealed structure is possible because noholes are required for heat dissipation.
Since the dust do not enter into theamplifier, the interior is kept clean for along time. Therefore, it is also hard tobreak down.

Natural sounds are made by natural materials
As a result of various trials, we came to the conclusion that parts
made of natural materials are suitable for the reproduction ofnatural sounds.
Sandwiched wood of maple and spruce

These PAPER-OIL-CAPACITORS havebeen tuned exclusively by SPEC. Inner
KRAFT PAPER brings beautiful tonesounds like a TUBE .
Mica capacitors used in SPEC amplifiers
are made of highest quality ruby mica.It is
produced only at the foothills of theHimalayas. It is made by orogeny of theHimalayas.Mica of high purity is a great
benefit from
Himalayan orogeny
movement andwe can hear the
profound silence.