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：
; R" U' z( j2 {, C1 X+ w" OBalanced to unbalanced (Section 1):
+ D0 W5 i- P) S; OInput impedance ≥ 10 kΩ, balanced/floating1 R4 q3 B1 @+ d( H# V8 `6 ?
Maximum input level +24 dBu7 V: V; S1 A/ v- u. X! |
Output impedance < 100 Ω, unbalanced& W! e" B5 j+ @9 ] G
Maximum output level +20 dBu
* ]; t7 ^3 Q# G; P& t3 zMinimum load 600 Ω
" p' ?9 M+ o9 C; }* Y- a LFrequency response ±0.2 dB, 30 Hz...16 kHz
" ~% x9 b4 f! rAttenuation 0/15 dB; two fixed steps6 Z5 t. ^. C' \0 |1 z/ H5 `
0...15 dB; variable/ [- i% W% }# S/ m+ C; q# ~; U. a
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu. Z2 X2 c* p+ I9 x, g3 V& ^
Unbalanced to balanced (Section 2):; l! H. [! U5 r2 k
Input impedance 5 kΩ, unbalanced/ i8 R9 C- ~9 F: k; e4 r% k
Maximum input level +20 dBu7 X2 W9 M3 d" L6 I. e+ v' Z( U. q- L
Output impedance ≤ 50 Ω, balanced/floating
L: {& r& \" ]) A5 `0 I S& W: H GMinimum load 200 Ω
+ d3 K; |2 _8 I# k) u! sMaximum output level +24 dBu
) Q4 q" J; b% J' hFrequency response ±0.2 dB, 30 Hz...16 kHz
6 Z, ]; n4 F$ ^$ o7 ]- DGain 14/30 dB; two fixed steps
& _: H% d+ }* `5 F: h0...17 dB; variable: Y. S6 v! z6 B- d0 h O5 R
S/N > 100 dB; gain set to 6 dB, line level +6 dBu
( V& P! ? B3 I2 T1 J. ?" NSupply: ±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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