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:: M- Z t! n E! g" A% ^' ?
Balanced to unbalanced (Section 1):! f& X" c# ]( y
Input impedance ≥ 10 kΩ, balanced/floating, X: H1 } z9 i S% n! c' I
Maximum input level +24 dBu
; Q# P/ @7 B. \1 ~Output impedance < 100 Ω, unbalanced
" Q5 ?) D! Z3 Z$ E3 PMaximum output level +20 dBu
4 t E& W% C" [/ |' l$ r' MMinimum load 600 Ω
. j% u6 ~) @- e4 T4 {, I; EFrequency response ±0.2 dB, 30 Hz...16 kHz9 c- W5 e. d, @: _4 k/ f! H
Attenuation 0/15 dB; two fixed steps( L6 n% Y# M' ?; p& g8 E
0...15 dB; variable' ?5 m! c- E; O1 ?/ t) g
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
9 l4 T& m: J# B2 W& aUnbalanced to balanced (Section 2):5 n9 p- I) b; G2 a' F5 Q+ u: _$ U
Input impedance 5 kΩ, unbalanced
; o* O) `, [1 S% W. ?+ H0 M6 lMaximum input level +20 dBu: J6 t6 U( x/ K, ]4 K
Output impedance ≤ 50 Ω, balanced/floating* H0 c5 ~" f3 N! W8 P) k
Minimum load 200 Ω
# g1 _+ ^' o4 t# H' X$ jMaximum output level +24 dBu8 L7 d( d. q/ ?; P
Frequency response ±0.2 dB, 30 Hz...16 kHz4 f2 N8 S# @! S/ t
Gain 14/30 dB; two fixed steps
0 l0 [3 e, G# Q0...17 dB; variable0 T! m1 a0 j* L* n( C3 c& S
S/N > 100 dB; gain set to 6 dB, line level +6 dBu0 x1 f( w0 D, p' {/ }: r) |- c) x
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |