Meticulously designed and beautiful in appearance—just like a musical instrument
As befits a top-end
audio component, the A-S3000 gives off the presence of a fine musical
instrument, with absolutely no screws or fasteners that can be seen from the
outside. Every single aspect of its construction and design exudes master
craftsmanship and reflects an obsession with quality—a truly musical quality
possible only for Yamaha, a world class musical instrument manufacturer. The
amplifier with its refined design has been meticulously finished by the
skillful use of advanced processing technologies: integrating the top panel and
side wood connection, leaving no gaps while using different materials—metal and
wood—for the connection.
Rigid Streamlined Construction— provides strict anti-vibration protection,
and enables shortest
cabling routes
The A-S3000 has
adopted a newly designed highly rigid double structure construction in order to
achieve profoundly pure and accurate audio amplification. The bottom chassis
and insulator ward off external vibration, and provide each circuit board a
floating structure supported by an independent inner frame, thoroughly
eliminating the impact of vibration. And the power source unit, which consists
of a power transformer and capacitors, which are major sources of internal
vibration, is fixed firmly with a three-dimensional structured inner frame, and
is supported solidly by the front panel and the rear panel. The power amp
circuit board and the weighty heat sink are attached to the left and right
inner frames. The power supply unit and amplifier circuits are thus
structurally isolated, achieving an ideal chassis structure which thoroughly
blocks the transmission of vibration. Moreover, the inner frame that supports
the power transformer is shaped with ample space below it, allowing passage of
the wiring to each circuit over the shortest possible route. The newly
developed chassis with this innovative structure helps to minimise the length
of the signal paths and achieve low impedance, as well as providing high
rigidity and anti-vibration benefits. The result is a dramatic reduction in
signal loss, for remarkably pure audio amplification.
Left-right
symmetrical design for independent pre amp and power amp blocks
The amplifier
circuit design features independent pre amp and power amp blocks, and perfect
left-right symmetry. Separation of the pre amp, which handles low energy
signals, from the power amp, which handles high-energy amplified signals,
greatly reduces sound deterioration caused by mutual interference. Moreover,
the left-right symmetrical design, which keeps the left and right power stages
completely separate, ensures greater channel separation and enhances clarity of
the stereo image.
Exquisite,
large level meters reflect the dynamics in the music
Floating
and Balanced Power Amplifier with MOSFETs
All-stage
balanced transmission
Direct
drawing toroidal transformer for complete elimination of signal transmission
loss
Exceptionally
low impedance through secure screw connections
Superior
quality electronic volume control for optimum sound
Discretely
configured phono amp
Large
toroidal transformer, solidly mounted with independent three-dimensional inner
frame
Comprehensive
low impedance design, shortened signal paths and copper-plated chassis
Six mm
thick top panel made of non-magnetic aluminium plate
Insulators
allow use of spikes or pads
Original
speaker terminals for high sound quality, as well as beauty and ease of use
Obsessive,
meticulous switch design— elaborate, richly textured, easy-to-use
Remote
control with simple design and superior texture
Technical Specifications
for A-S3000
POWER SECTION
• Rated Output Power
(8 Ω, 20 Hz to 20 kHz, 0.07% THD): 100 W
+ 100 W
(4 Ω, 20 Hz to 20 kHz, 0.07% THD): 150 W
+ 150 W
• Dynamic Power (IHF)
(8 Ω) : 120 W + 120 W
(6 Ω) : 150 W + 150 W
(4 Ω) : 200 W+ 200 W
(2 Ω) : 300 W + 300 W
• Dynamic Headroom (8 Ω) : 0.79 dB
• Maximum Output Power [U.K.
and Europe models only] (4 Ω, 1 kHz, 0.7% THD): 170 W + 170 W
• Maximum Effective Output Power (JEITA) [Taiwan, China, Korea, Asia and U.K. models only]
(8 Ω, 1 kHz, 10% THD): 130 W
+ 130 W
(4 Ω, 1 kHz, 10% THD): 210 W
+ 210 W
• IEC Output Power [U.K. and Europe models only]
(8 Ω, 1 kHz, 0.02% THD): 105 W + 105 W
• Maximum Power (JEITA) [Taiwan,
China and Asia models]
(8 Ω, 1 kHz, 10% THD): 120 W
+ 120 W
(4 Ω, 1 kHz, 10% THD): 190 W
+ 190 W
• Power Bandwidth (MAIN
L/R, 0.1% THD, 45 W, 8 Ω): 10 Hz
to 60 kHz
• Damping Factor
(1 kHz, 8 Ω): 250 or higher
• Maximum Input Signal Voltage
PHONO
MM (1 kHz, 0.003% THD) : 50 mVrms
PHONO
MC (1 kHz, 0.003% THD) : 2.3 mVrms
CD,
etc. (1 kHz, 0.5% THD) : 2.80 Vrms
BAL 1/BAL 2 (1 kHz,
0.5% THD)
(BYPASS)
: 2.80 Vrms
(ATT.
-6 dB) : 5.60 Vrms
• Rated Output Voltage/Output Impedance
REC
OUT : 200 mVrms/1.5 kΩ
PRE
OUT : 1.0 Vrms/1.5 kΩ
• Frequency Response
CD,
etc. (5 Hz to 100 kHz) : +0/−3 dB
CD,
etc. (20 Hz to 20 kHz) :
+0/−0.3 dB
• RIAA Equalization Deviation
PHONO
MM : ±0.5 dB
PHONO
MC : ±0.5 dB
• Total Harmonic Distortion
PHONO
MM to REC OUT (20 Hz to 20 kHz,
1.2 Vrms) : 0.005%
PHONO
MC to LINE 2 REC (20 Hz to 20 kHz,
1.2 Vrms) : 0.02%
BAL
1/BAL 2 to SPEAKERS (20 Hz to 20 kHz, 50
W/8 Ω): 0.025%
CD,
etc. to SPEAKERS (20 Hz to 20 kHz, 50 W/8 Ω): 0.025%
• Signal to Noise Ratio (IHF-A Network)
PHONO
MM (5 mVrms, Input shorted) : 93 dB
PHONO
MC (500 μVrms, Input shorted): 85 dB
CD,
etc. (200 mVrms, Input shorted) : 103 dB
• Residual Noise (IHF-A Network) : 33 μVrms
CONTROL SECTION
• Input Sensitivity/Input Impedance
CD,
etc. : 200 mVrms/47 kΩ
PHONO
MM : 2.5 mVrms/47 kΩ
PHONO
MC : 100 μVrms/50 Ω
MAIN
IN : 1 Vrms/47 kΩ
BAL
1/BAL 2 : 200 mVrms/100 kΩ
• Headphone Jack Rated Output Power CD, etc. (1 kHz, 32 Ω,
0.2% THD): 70 mW + 70 mW
• Channel Separation CD,
etc. (Input, 5.1 k Ω Terminated, 1 kHz/10 kHz) : 74/54
dB or higher
PHONO
MM (Input shorted, 1 kHz/10 kHz, Vol.: −30 dB): 90/77 dB or higher
PHONO
MC (Input shorted,1 kHz/10 kHz, Vol.: −30 dB): 66/77 dB or higher
• Tone Control Characteristics
BASS
Boost/Cut
(50 Hz) : ±9 dB
Turnover
Frequency : 350 Hz
TREBLE
Boost/Cut
(20 kHz) : ±9 dB
Turnover
Frequency : 3.5 kHz
GENERAL
• Power Supply
[U.S.A
and Canada models]: AC 120 V, 60 Hz
[Taiwan
model]: AC 110 V, 60 Hz
[China
model] : AC 220 V, 50 Hz
[Korea
model] : AC 220 V, 60 Hz
[Australia
model] : AC 240 V, 50 Hz
[U.K.
and Europe models]: AC 230 V, 50 Hz
[Asia
model] : AC 220 - 240 V, 50/60 Hz
• Power Consumption
[U.S.A
and Canada models] : 500 VA
[Other
models] : 350 W
• Standby Power Consumption : 0.3 W
• Dimensions (W × H × D): 435 × 180 × 464 mm (17-1/8” × 7-1/8” × 18-1/4”)
• Weight: 24.6 kg (54.2 lbs)