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楼主 |
发表于 2013-1-20 11:04:32
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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：- g7 Q) }- J# N
Balanced to unbalanced (Section 1):% [9 H0 N& h x8 A% W# F+ R) q
Input impedance ≥ 10 kΩ, balanced/floating% ~& O' `2 e* p. d* w& m+ D
Maximum input level +24 dBu% U0 L' N. G: u: ~7 d8 p
Output impedance < 100 Ω, unbalanced+ v! l2 y7 b: Z- S5 Z/ T2 d
Maximum output level +20 dBu
$ f8 `& }3 K# u1 ?7 ~Minimum load 600 Ω
4 i, `/ h9 J- ?/ mFrequency response ±0.2 dB, 30 Hz...16 kHz
# |$ v, A0 Y) sAttenuation 0/15 dB; two fixed steps
% r8 G& i& s' K0...15 dB; variable
; j- R: y$ P+ |4 b u- pS/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
; b- q5 D/ C: l+ R. VUnbalanced to balanced (Section 2):
# V* A* T. b9 Y4 ~3 GInput impedance 5 kΩ, unbalanced
" }& A9 U( h4 M! r) _5 NMaximum input level +20 dBu! ^* }8 i" |& R/ n2 a/ H3 _
Output impedance ≤ 50 Ω, balanced/floating
- J" d. |- q& b, PMinimum load 200 Ω
7 y% U( t, {2 {6 s8 W- J+ RMaximum output level +24 dBu) L4 U1 h+ o! v% @/ K1 T% ^6 g
Frequency response ±0.2 dB, 30 Hz...16 kHz) ^* e2 i# v1 ]% H+ T9 k2 A' r; {
Gain 14/30 dB; two fixed steps$ h& @1 |" w# [% S$ R5 c
0...17 dB; variable
% W; E0 N. l$ o0 S, C0 VS/N > 100 dB; gain set to 6 dB, line level +6 dBu! V: L6 ^; j) R+ ?
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |
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