有哪位朋友用过这块板的，可否说说效果如何？看资料的频响也不算很高：: c$ N" }) J. P& d- m- ]
Balanced to unbalanced (Section 1):
: n! z- }& @" _& h; e: wInput impedance ≥ 10 kΩ, balanced/floating
5 }1 m: X7 g a. U- I8 \; Q4 SMaximum input level +24 dBu- d) J: l8 l2 a# ^* p" a
Output impedance < 100 Ω, unbalanced
, a' b8 C) \7 v9 h' G& nMaximum output level +20 dBu
|9 U7 \5 B* HMinimum load 600 Ω. ~9 V7 P% b6 A8 t; v f7 R
Frequency response ±0.2 dB, 30 Hz...16 kHz
% h0 J( u' Y" g6 A* qAttenuation 0/15 dB; two fixed steps& a8 U# k2 Y3 P9 c' g3 K
0...15 dB; variable8 a" {0 \7 ~' Q
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu" W7 d3 p; Q/ ]- Y8 s& W- |% y
Unbalanced to balanced (Section 2):
& y3 _5 ~5 e6 ?% D7 S# P& t0 n/ QInput impedance 5 kΩ, unbalanced
* V# b1 M) H3 s" ?* |3 wMaximum input level +20 dBu
" I1 P% P! W# H, q7 w& O4 F* lOutput impedance ≤ 50 Ω, balanced/floating" W) z9 R" T) x1 Z+ n" u6 l, o
Minimum load 200 Ω
5 W4 [- b0 E/ ?8 ]Maximum output level +24 dBu! E% P6 B- j8 W& I$ j
Frequency response ±0.2 dB, 30 Hz...16 kHz
$ p: [6 }) ?* ~" b* HGain 14/30 dB; two fixed steps+ R' ?8 X/ s2 h
0...17 dB; variable- Y+ u. t) Y) G6 E
S/N > 100 dB; gain set to 6 dB, line level +6 dBu
2 _% R! S" @3 ?" X9 h3 v; X; f9 n* s% W% `Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |
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发表于 2013-1-19 13:19:53
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