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：3 a: k+ J% X. e; \% v
Balanced to unbalanced (Section 1):
9 u: F* V7 z2 cInput impedance ≥ 10 kΩ, balanced/floating
$ X0 Y5 w/ N# U9 K8 ~Maximum input level +24 dBu
/ p% P# k' h$ {4 VOutput impedance < 100 Ω, unbalanced1 e9 z9 F' E$ p: ?
Maximum output level +20 dBu) ]8 u7 Z+ R! W/ t
Minimum load 600 Ω
$ ^$ g' Q d8 JFrequency response ±0.2 dB, 30 Hz...16 kHz
/ N6 V1 F: I7 x) jAttenuation 0/15 dB; two fixed steps: T& z- T Y1 X% Y
0...15 dB; variable# f/ J4 S- I; a
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu( U/ _' a- t* l: B
Unbalanced to balanced (Section 2):, _, z, M# j9 W# X6 w! D' V
Input impedance 5 kΩ, unbalanced
' I, J) G& W7 `Maximum input level +20 dBu
# Y% S3 y5 z4 N& qOutput impedance ≤ 50 Ω, balanced/floating$ H- e7 L8 ^" x: M. P6 U
Minimum load 200 Ω5 I- t* m+ e0 u: x4 Q9 r
Maximum output level +24 dBu7 q9 K9 R2 c( t/ A: D5 i
Frequency response ±0.2 dB, 30 Hz...16 kHz
& @* n% |2 f0 B( H; k: qGain 14/30 dB; two fixed steps. x+ o) t6 \4 Y9 X
0...17 dB; variable0 z2 O8 q) \& r6 q! I) h9 [$ z6 h' k
S/N > 100 dB; gain set to 6 dB, line level +6 dBu
8 r/ m( p. a: A- o6 A w j tSupply: ±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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