Yamaha WXA-50 Service Manual page 11

■ Audio Section / オーディオ部
Rated Output Power / 定格出力 (with AES-17 20 kHz L.P.F.)
[WXA-50]
– 2 channel driven –
20 Hz to 20 kHz, 0.06 % THD
U, C, A, B, G, L models
(120/230 VA/C) 4 / 6 / 8 ohms .................... 105 / 70 / 55 W
T, K, S, V models
(110/220 VA/C) 4 / 6 ohms .................................. 90 / 60 W
J model
(100 VA/C) 4 / 6 ohms .................................. 70 / 50 W
1 kHz, 0.9 % THD
U, C, A, B, G, L models
(120/230 VA/C) 8 ohms .............................................. 65 W
– 1 channel driven –
1 kHz, 0.9 % THD
U, C, A, B, G, L models
(120/230 VA/C) 4 / 6 / 8 ohms .................... 130 / 90 / 70 W
T, K, S, V models
(110/220 VA/C) 4 / 6 / 8 ohms .................... 120 / 90 / 70 W
J model
(100 VA/C) 4 / 6 ohms .................................. 90 / 65 W
Maximum Effective Output Power / 実用最大出力 (JEITA)
[WXA-50]
– 1 channel driven –
1 kHz, 10 % THD
U, C, T, K, A, B, G, L, S, V models
(120/230 VA/C) 4 / 6 / 8 ohms .................. 165 / 110 / 85 W
(110/220 VA/C) 4 / 6 / 8 ohms .................. 150 / 105 / 80 W
J model
(100 VA/C) 4 / 6 ohms ................................ 115 / 80 W
Total Harmonic Distortion / 全高調波歪率 (20 Hz to 20 kHz)
(with AES-17 20 kHz L.P.F.)
[WXA-50]
SP OUT ................................................................. 0.02 % THD
[WXC-50]
PRE OUT ............................................................ 0.003 % THD
Frequency Response / 再生周波数帯域 (1 kHz, +0/-3 dB)
AUX OUT
OPT IN, NETWORK, USB ...............................10 Hz to 50 kHz
AUX IN ............................................................10 Hz to 40 kHz
[WXA-50]
SP OUT
OPT IN, NETWORK, USB .............................10 Hz to 80 kHz
AUX IN .........................................................10 Hz to 40 kHz
[WXC-50]
PRE OUT
OPT IN, NETWORK, USB .............................10 Hz to 80 kHz
AUX IN .........................................................10 Hz to 40 kHz
Signal to Noise Ratio / 信号対雑音比 (IHF-A)
(with AES-17 20 kHz L.P.F.)
OPT IN, NETWORK, USB, Bluetooth
[WXA-50] ......................................................................110 dB
[WXC-50] ......................................................................112 dB
AUX IN ..............................................................................98 dB
Channel Separation / チャンネルセパレーション
(1 kHz / 10 kHz)
[WXA-50] .............................................................. 90 dB / 72 dB
[WXC-50] ............................................................. 95 dB / 85 dB
Rated Output Level/Output Impedance /
定格出力電圧／出力インピーダンス
PRE OUT SUBWOOFER (30 Hz, L=R) ....... 4.0 V / 470 ohms
AUX OUT ......................................................... 2.0 V / 1 k-ohms
[WXC-50]
PRE OUT L/R (1 kHz) .................................. 2.0 V / 470 ohms
Maximum Output Level / 最大出力レベル (PRE OUT, 0.9 % THD)
[WXC-50]
PRE AMP/PLAYER mode (Gain offset +6 dB)
........................................................................................ 4.0 V
Volume Control Range/Step / 音量可変範囲／ステップ
.............................................MUTE, -80 dB to 0 dB/0.5 dB step
Support terminal / 対応端子
[WXA-50] ............................................................... SPEAKERS
[WXC-50] ...................... PRE OUT L/R, OPT OUT, COAX OUT
Equalizer Characteristics / EQ 特性
Bass
Variable width ......................... +6.0 dB to -6.0 dB/0.5 dB step
Center frequency .......................................................... 350 Hz
Middle
Variable width ......................... +6.0 dB to -6.0 dB/0.5 dB step
Center frequency ......................................................... 1.1 kHz
Treble
Variable width ......................... +6.0 dB to -6.0 dB/0.5 dB step
Center frequency ......................................................... 3.5 kHz
Bass Crossover Frequency / 低域クロスオーバー周波数
Cut off frequency ............................................................ 250 Hz
L.P.F. ...........................................................................12 dB/oct.
Maximum Input Signal / 最大許容入力 (1 kHz, 0.5 % THD)
AUX IN ..................................................................2.4 V or more
■ General / 総合
Power Supply / 電源電圧
[WXA-50]
U, C, S, V models ............................. AC 100–120 V, 50/60 Hz
T model ......................................................... AC 220 V, 50 Hz
K model ......................................................... AC 220 V, 60 Hz
A, B, G, L models ............................. AC 220–240 V, 50/60 Hz
J model ..................................................... AC 100 V, 50/60 Hz
[WXC-50]
U, C models ..................................... AC 100–120 V, 50/60 Hz
K model ......................................................... AC 220 V, 60 Hz
A, B, G, L, S, V models ..................... AC 100–240 V, 50/60 Hz
J model ..................................................... AC 100 V, 50/60 Hz
Power Consumption / 消費電力
[WXA-50]
........................................................................................ 60 W
[WXC-50]
........................................................................................ 12 W
No Signal Power Consumption (reference data) /
無信号時消費電力（参考値）
[WXA-50]
........................................................................................ 15 W
[WXC-50]
.......................................................................................... 5 W
WXA-50/WXC-50
11