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:
4 m; M" A9 v# R8 nBalanced to unbalanced (Section 1):
9 M8 c2 G5 m' q, w0 `0 [Input impedance ≥ 10 kΩ, balanced/floating' z4 N! K& v) a/ G
Maximum input level +24 dBu
* _5 e+ ]/ l) w3 E% f( cOutput impedance < 100 Ω, unbalanced
% `* \6 [# b4 N9 [8 W8 U7 yMaximum output level +20 dBu( K) c7 P4 _' Y1 b# J
Minimum load 600 Ω: W9 g& ~# x$ f# Y1 A, \4 f
Frequency response ±0.2 dB, 30 Hz...16 kHz7 o# T# J# p3 X* q$ Q
Attenuation 0/15 dB; two fixed steps
6 U+ U( l6 H4 [; ], U/ z9 s: i! M0...15 dB; variable
, I; ^) I( q" R4 z8 eS/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
6 c& J# c) }) [) ^! a) F" M8 zUnbalanced to balanced (Section 2):
- \8 D( ?/ @$ Z: ]( v; p% F* _1 iInput impedance 5 kΩ, unbalanced; z% ~3 Y3 O0 e
Maximum input level +20 dBu
& p9 W; {4 z6 V: P' nOutput impedance ≤ 50 Ω, balanced/floating
W# j x5 @0 q( lMinimum load 200 Ω
% @2 F$ B9 I+ YMaximum output level +24 dBu
% l1 f' E6 n( r; h# K& C5 }Frequency response ±0.2 dB, 30 Hz...16 kHz
/ W* f) ]/ l% l; L3 a! FGain 14/30 dB; two fixed steps
@; v+ V n0 @8 R+ Y" J0...17 dB; variable* c' C, e! B' O, G% _$ ^0 D" s
S/N > 100 dB; gain set to 6 dB, line level +6 dBu* t$ w! [" f* B9 h1 R* H4 ^8 ~
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |