二嫂Esoteric F03A合并式功放

二嫂Esoteric F03A合并式功放,日本Esoteric旗下F-03A綜合放大器,它是F系列當中等級最高的,也是唯一的純A類綜合放大器,在8Ω負載條件下,可以提供30W的輸出功率,4Ω時可以翻倍至60W,雖然沒有超大功率輸出,但足以應對大多數家用音箱。

F-03A承襲自家最高階Grandioso系列的技術精華,內部的全平衡前級架構是來自于Grandioso C1,再搭配純A類功率放大。全機采用雙單聲道設計,從前級輸入一直到后級功率輸出的最后階段都是如此,左右聲道完全獨立可以有效降低串音干擾的問題。內部搭載940VA大型EI變壓器,每聲道具備40000μF(10000μF × 4)的濾波電容。每聲道使用3對Sanken的LAPT功率晶體并聯推挽輸出,同樣的晶體也能在旗艦級S1、M1身上看到,可提供17安培的電流供應,最大峰值達34安培。

音量控制部分,F-03A采用獨家QVCS(Quad Volume Control System)音量控制系統,同樣是來自旗艦C1前級的技術,使用4組電阻數組分別控制左右聲道的+、-音樂訊號。輸出/入端子方面,F-03A擁有4組RCA輸入、2組XLR輸入、1組XLR Pre in,還有1組RCA端子支持MM/MC唱頭輸入。輸出端子有XLR、RCA前級輸出各1組,另外前面版上有1組6.3mm耳機輸出,搭配獨立耳機輸出線路。

技術參數

Esoteric F-03A

型式:純A類綜合放大器

輸出功率:30W(@8Ω)、60W(@4Ω)

總諧波失真:0.006%

頻率響應:10Hz~100kHz(1W, +0/-3.0dB)

信噪比:104dB

阻尼因子:370

前級增益:24.5dB(最大音量)

后級增益:29dB

尺寸:445x191x468mm(WxHxD)

重量:32kg二嫂Esoteric F03A合并式功放

二嫂Esoteric F03A合并式功放

Speaker output Rated output 30W + 30W (8Ω)
60W + 60W (4Ω)
Total harmonic distortion
(1kHz, 8Ω)
0.006% (30W)
Frequency response
(+0/-3.0 dB at 1W output)
10Hz - 100kHz
S/N ratio (IHF-A) 104dB
Damping factor 370
Minimum compatible impedance
Speaker output connectors 2 pairs (L/R) (screw type)
Input impedance XLR, RCA 10kΩ
PHONO (MM) 47kΩ
PHONO (MC) 100Ω
EXT. PRE IN 47kΩ
Output impedance XLR, RCA 100Ω
PRE OUT S/N ratio (at 1V output)
XLR, RCA input 110dB
PHONO (MM) input 93dB
PHONO (MC) input 75dB
Gain Preamplifier 24.5dB (when VOLUME at maximum)
Power amplifier 29dB
Tone controls BASS  tone curve ±12dB (63Hz)
MIDDLE  tone curve ±12dB (630Hz)
TREBLE  tone curve ±12dB (14kHz)
General Power supply / Power consumption AC 230V 50Hz / 290W (no signal: 290W)
AC 120V 60Hz / 290W (no signal: 215W)
AC 220V 60Hz
External dimensions
(W x H x D)
445 x 191 x 468mm
(17 5/8″ x 7 5/8″ x 18 1/2″)
(including protrusions)
Weight 32kg (70 5/8 lb)
Included accessories Power cord x 1
Remote control (RC-1301) x 1
Batteries (AAA) x 2
Felt pads x4
Owner's manual x 1
Warranty card x 1
- This product is available in two different power supply variations as shown in the chart above.
Make sure that the voltage shown on the rear panel matches the AC line voltage in your area.
- The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.
- Specifications and appearance are subject to change without notice.
- Weight and dimensions are approximate.

BASS  tone curve

MIDDLE  tone curve

TREBLE  tone curve

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