Measurements of Audiolab 8300XP PowerAMP

前阵子在某群里遇到火狼电声的老大,他说他的群里不少看我网站的网友(惊喜啊)然后还问我:接不接受网友送测?接,当然接!于是经过他的介绍我和某网友经过一番沟通之后收到了这台来自傲立(Audiolab)的8300XP后级:

Photo
Photo
Rear
Rear

以六千底七千头的价格来说,这台设备无论是体积、重量、接插件的品质乃至于做工来说都是值回票价的。而且非常简洁的设计和配色我其实挺喜欢的。如果要我直说的话我不知道测量的情况下是只会选择这货而不是LA90。虽说设计上只是方方的盒子,但细节还不错:

Photo2
Photo2
Photo3
Photo3
Photo4
Photo4
Photo5
Photo5
Photo6
Photo6
Photo7
Photo7

不过这里有个小小的问题,输入切换开关和桥接切换开关从位置到形态简直是一模一样的……我一开始测试的时候就不小心按错了,导致测试数据一塌糊涂(相位还反了180度)……还好在大佬的提示下检查了下=。=

光外观好看是没有用的,我们先看一下原厂公布的参数:

8300XP Specifications

Rate power output140W RMS (8Ω <1% THD, 1kHZ stereo)
230W RMS (4Ω <1% THD, 1kHZ stereo)
480W RMS (8Ω <1% THD, 1kHZ bridge)
Gain29dB @ 1kHz (stereo)
36dB @ 1kHz (bridge)
Input sensitivity1100mV
Input impedance15k (balanced) 10k (unbalanced)
Frequency response -3dB20Hz – 80kHz
+/-1dB20Hz – 30kHz
Total harmonic distortion (THD)0.004% (20W, ref. 1kHZ)
Intermodulation distortion (IM)0.004% (20W, ref. 7kHz + 60Hz)
Transient inermodulation distortion (TID)113dB (A Weighted, ref. 140W)
Signal-to-noise ratio (S/N)140W / 113dB
Damping factor160
Power Requirement240V ~ 50-60Hz
230V ~ 50-60Hz
115V ~ 50-60Hz
100V ~ 50-60Hz
Dimension (mm) (WxHxD)444 x 149 x 367
Carton Size (mm) (WxHxD)550 x 260 x 580
Weight16Kg (Net) 18.5Kg (Gross)

开始测量:

4R5W
4R5W
8R5W
8R5W

Dynamic-Range
Dynamic-Range
THD+N-Ratio-Ω-5W
THD+N-Ratio-Ω-5W
SMPTE-Ratio-vs-Measured-Level-8Ω
SMPTE-Ratio-vs-Measured-Level-8Ω
Multitone-8Ω-5W
Multitone-8Ω-5W
THD+N-Ratio-vs-Measured-Level
THD+N-Ratio-vs-Measured-Level
THD+N-Ratio-vs-Measured-Level-Mono
THD+N-Ratio-vs-Measured-Level-Mono

总结:这货以前价格过W,我会觉得偏贵了点。但看着现在7K上下的淘宝价格……其实……拿来推低音也还不错?(虽然不如失落神器但那货买不到了嘛)

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