Troubleshooting; Specifications - Esoteric A-03 Manuel Du Propriétaire

Troubleshooting

If you experience any problem with this unit, please take the time to
look through this chart and see if you can solve the problem yourself
before calling your dealer.
No power
e Check the connection to the AC power supply. Check and make
sure the AC source is not a switched outlet and that if it is, the
power is turned on.
e Insert the power cord into the AC inlet of this unit.
There is no sound or only a very low-level sound is heard.
e Press the POWER switch to turn on the unit.
Press the WARM-UP switch to turn off the WARM-UP mode if the
unit is in warming up.
e Check the operation of the preamplifier. When turning on the
preamplifier, turn off this unit first.
e Make sure a signal is output from a preamplifier etc.
e Check if the preamplifier, speakers and source components are
secure connected.
e Select input setting of the preamplifier correctly.
e Select input setting of this unit correctly.
e Adjust the preamplifier volume.
e The ring around the POWER switch flashes in blue or flashes in
blue and violet when the protection circuit is operating. Turn off
the unit immediately if this indicator is red and solve the cause of
problem.
e The speaker cord may be shorted out. Check your speaker
connections.
Unstable sound.
e Speaker polarity (+/_) is reversed. Check all speakers for correct
polarity.
If normal operation cannot be obtained, unplug the power
cord from the outlet, wait about 60 seconds and plug it again.
This resets the internal circuit which can be disturbed during
electrical storms, power interruptions, etc.
10

Specifications

General
Power supply
Europe model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 230 V, 50 Hz
U.S.A./Canada model . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 120 V, 60 Hz
Korea model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AC 220 V, 60 Hz
Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400 W
External dimensions (W x H x D)
445 x 220 x 430 mm (17 1/2˝ x 8 5/8˝ x 17˝)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 kg (84 lb)
Allowable operating temperature
Allowable operating humidity
Allowable storage temperature . . . –20 °C to +55 °C (–4 °F to 12 °F)
Amplifier Section
Rated output power . . . . . . . . . . . . . STEREO: 50 W + 50 W (1 kHz, 8 Ω)
Maximum useful output power . . . STEREO: 77 W + 77 W (1 kHz, 8 Ω)
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Hz to 100 kHz
Signal-to-noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . .more than 117 dB
Total harmonic distortion . . . . . . . . . . . 0.009 % (1 kHz, rated output, 8 Ω)
Minimum allowable speaker impedance . . . . . . . . . . . . . . .STEREO: 4 Ω
Warranted range for Class A amplification
Input sensitivity (rated output)
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 W + 50 W (8 Ω)
Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RCA (STEREO): 28.4 dB
Accessories
Power cord x 1
Felt pads x 4
Power plug support bracket x 1
Screw for the power plug support bracket x 2
Owner's manual x 1
Warranty card x 1
< Design and specifications are subject to change without notice.
< Weight and dimensions are approximate.
< Illustrations may differ slightly from production models.
+10 °C to +30 °C (+50 °F to +86 °F)
5 % to 85 % (no dew condensation)
100 W + 100 W (1 kHz, 4 Ω)
BTL: 200 W (1 kHz, 8 Ω)
330 W (1 kHz, 4 Ω)
127 W + 127 W (1 kHz, 4 Ω)
BTL: 270 W (1 kHz, 8 Ω)
400 W (1 kHz, 4 Ω)
(1 W, 8 Ω, +0/–1.2 dB)
BTL: 4 Ω
50 W + 50 W (1 kHz, 8 Ω)
RCA (STEREO): 0.76 Vrms/50 W (8 Ω)
XLR (STEREO): 1.56 Vrms/50 W (8 Ω)
RCA (BTL): 1.62 Vrms/200 W (8 Ω)
XLR (BTL): 2.35 Vrms/200 W (8 Ω)
RCA: 150 kΩ
XLR: 320 kΩ