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:
9 _' F% E# L+ L6 S9 b* B+ KBalanced to unbalanced (Section 1):" S5 D" x! t8 h9 g3 e
Input impedance ≥ 10 kΩ, balanced/floating/ q9 F( l3 Q' [4 L$ Z: ]6 y" v3 @
Maximum input level +24 dBu) c, I6 Z" a( d3 {; o* t
Output impedance < 100 Ω, unbalanced
; M" x. ~6 l% I6 t# D a1 C) LMaximum output level +20 dBu
$ [" K4 Q+ V/ K8 VMinimum load 600 Ω
% q; {0 e [$ f' K1 {Frequency response ±0.2 dB, 30 Hz...16 kHz. }' l1 ^4 j- ?4 t, m
Attenuation 0/15 dB; two fixed steps$ r! N; _( j0 l" a# Z) _+ e/ C* t
0...15 dB; variable
+ P- W; v- H' j; ~ T/ SS/N > 100 dB; attenuation set to 6 dB, line level +6 dBu6 s3 U+ f: N4 j7 L. V# M
Unbalanced to balanced (Section 2):1 ?" L# z8 _7 W0 u- j; l
Input impedance 5 kΩ, unbalanced
5 j% y" D2 i: x/ fMaximum input level +20 dBu
9 n3 J3 p0 H5 D9 LOutput impedance ≤ 50 Ω, balanced/floating
: j1 r3 H8 C7 O9 c% ^' TMinimum load 200 Ω. M: X$ f3 u. L; q! L
Maximum output level +24 dBu
; p [; y6 Y( m$ L6 CFrequency response ±0.2 dB, 30 Hz...16 kHz/ U' D$ F7 Z& F1 w9 z
Gain 14/30 dB; two fixed steps4 q* {5 W# X( V" ]+ ~% z2 ^+ }0 d
0...17 dB; variable& a, O5 J; V) E! y
S/N > 100 dB; gain set to 6 dB, line level +6 dBu- L0 w6 }; ?3 k* y5 a
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |