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:
' C3 b$ E% ], d* M$ NBalanced to unbalanced (Section 1):
" H5 M' e& j6 _( C3 ~, @Input impedance ≥ 10 kΩ, balanced/floating
4 a: |0 _" n$ `$ H0 y' g- R6 S. G. }Maximum input level +24 dBu! }3 R5 x- p: q2 [9 h) @$ R8 i% ]
Output impedance < 100 Ω, unbalanced7 t6 p+ D4 I) @% {7 m5 V
Maximum output level +20 dBu, @% o9 x {2 R) F0 F4 L
Minimum load 600 Ω
" n% a4 Z% u) N1 y7 QFrequency response ±0.2 dB, 30 Hz...16 kHz
, E' P# z4 a2 k! {$ s, Q& L3 W0 ]& gAttenuation 0/15 dB; two fixed steps
1 K9 {; i) B% g1 \1 t$ ]0...15 dB; variable
9 \# k; [ _- p' y' o3 ?1 I* v. ~S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
- V5 O3 \" i$ l$ k# Q+ [Unbalanced to balanced (Section 2):
; {2 |8 d$ j- b. o# O# hInput impedance 5 kΩ, unbalanced2 k: b1 y: g; V- g4 F( ?* O
Maximum input level +20 dBu6 G+ o q) p# {( E
Output impedance ≤ 50 Ω, balanced/floating, Q& x& j, J* C$ Q2 U: \
Minimum load 200 Ω
8 |9 D7 T6 ?! W% Y- r# MMaximum output level +24 dBu
3 q+ Q" f3 |6 A7 W5 pFrequency response ±0.2 dB, 30 Hz...16 kHz' g6 V* _- i/ t& n2 n
Gain 14/30 dB; two fixed steps
3 N1 Q- h/ n% ?4 A3 f5 q0...17 dB; variable
& b9 ~7 |. H0 Z: b# q0 OS/N > 100 dB; gain set to 6 dB, line level +6 dBu
) c- `3 ?' q5 ^" eSupply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |