Accuphase金嗓子 金嗓子Accuphase E-303

上市参考售价:¥12,250

推出年代:1978.7

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E-303 采用的放大线路是全对称式放大电路结构,这种电路设计可以有效的减少谐波失真;供电部分使用一个大方牛变压器供电,保证供电与输出稳定性;放大部分采用8个FET 金属氧化场效应金封管半导体作为输出级与2个ELNA特制22000微法大电解电容,金嗓子E-303功放机井然有序的内部架构令它处处散发着高级音响的迷人气质,即使是以静态展示已经令人倍生好感,而它那种精致、工整、准确的声音又确实让人心动。

E-303 每声道8Ω输出功率130瓦,搭载6组RCA插座讯号输入其中唱机输入可切换MM和MC唱头,,2组RCA插座讯号输出供录音和外接放大器;采用线性定位器控制音量、高音、低音和喇叭输出。

器材规格

Form Stereo Integrated Amplifier
Output power
(at High Level Input, the time of both channel operation)
20Hz - 20kHz, 0.02% or less of a distortion 4ohm load: 180 W/ch
8ohm load: 130 W/ch
16ohm load: 65 W/ch
THD (for 20Hz - 20kHz) High Level Input->Output: Less than 0.02% (at the time of an Output power)
High Level Input->Pre Output: Less than 0.005% (at the time of an Output power)
DISC(Head Amp:OFF) ->Tape Rec Output: 0.005% or less (at the time of 6V output)
DISC(Head Amp:ON) ->Tape Rec Output: 0.01% or less (at the time of 2V output)
IM distortion (at the time [ High Level Input ] of an Output power) 0.01% or less
Frequency response High Level Input: 20Hz-20000Hz+0 -0.2dB
DISC Input: 20Hz-20000Hz+0.2 -0.2dB
Dumping factor 80 (8-ohm load, 40Hz)
A rated input / input impedance DISC1(Head Amp:OFF): 2.5mV/100, 47k and 82k, 150kohm
1 (Head Amp:ON):0.125mV of DISC(s)/100 ohms
DISC2(Head Amp:OFF): 2.5mV/47kohm
2 (Head Amp:ON):0.125mV of DISC(s)/100 ohms
High Level Input: 160mV/47kohm
Main Input: 1.3V/47kohm
The DISC maximum input (0.005% of a distortion, 1000Hz) Head Amp OFF:300mVrms
Head Amp ON:15mVrms
An Output power/Output load impedance Pre Output: 1.3V/200 ohm
Tape Rec Output: 160mV/200 ohms (in the case of DISC)
Headphones: 0.32V/conformity impedance 4-32ohm
Gain Main Input->Output: 27.8dB
High Level Input->Pre Output: 18.4dB
DISC Input(Head Amp:OFF) ->Tape Rec Output: 36dB
DISC Input(Head Amp:ON) ->Tape Rec Output: 62dB
S/N / Input conversion noise
(at the time of input short-circuit, an IHF-A curve, and a rated input) Main Input:115dB/-112dBV
High Level Input:100dB/-116dBV
DISC Input(Head Amp:OFF):86dB/-138dBV
DISC Input(Head Amp:ON):72dB/-150dBV
Volume control linkage error Less than 1dB
Tone control
Low-pitched sound 500Hz : ±10dB (100Hz)
200Hz : ±10dB (50Hz) 2dB step
2dB step
Loud sound 2kHz : ±10dB (10kHz)
7kHz : ±10dB (50kHz) 2dB step
2dB step
Loudness Compensation COMP1:+6dB(50Hz)
COMP2:+9dB(50Hz)
COMP of 3:+10dB (50Hz), and +4dB (15kHz)
(with volume control and -30dB)
Subsonic Filter 17Hz, -12 dB/oct
Attenuator -20dB
Power meter Logarithm compression type peak level directions
dB and the output Direct reading at the time of 8-ohm load
Load impedance 4-16ohm
The semiconductor used 113Tr, 18FET, 2IC, 39Di
Power source 100V, 117V, 220V, 240V/50Hz, 60Hz
Power consumption At the time of no inputting: 100W
At the time of an 8ohm load Output power: 490W
Dimensions the width 445x height 160(piece -- it includeds) x depth of 370mm
Weight 20kg
Option Wood cabinet A-8 (\15,000)

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