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：
+ t( U/ G* |9 M3 u d9 H2 HBalanced to unbalanced (Section 1):
( g$ k) U& [- v# I( E+ |# g( u2 m4 jInput impedance ≥ 10 kΩ, balanced/floating; n. `# d% y. `- Y t5 i
Maximum input level +24 dBu
. G- x) x$ g. I5 WOutput impedance < 100 Ω, unbalanced
) O5 S( _$ ] @ Z$ z5 GMaximum output level +20 dBu8 ^( y8 h& U1 u1 P3 j n" ^+ i$ z/ X
Minimum load 600 Ω
$ \" Y' ^, b7 u. }( DFrequency response ±0.2 dB, 30 Hz...16 kHz( k I. e* _4 h* C+ }, N
Attenuation 0/15 dB; two fixed steps( ~3 z2 ?; }* |6 t% D
0...15 dB; variable- h, F# ^* }; R
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
2 k7 G# V' ]) E6 F( E& f$ o7 E) B- eUnbalanced to balanced (Section 2):/ y4 z2 c# y8 [7 T) `* S+ @+ i
Input impedance 5 kΩ, unbalanced/ P% O; ]5 O6 b1 r( R( ^
Maximum input level +20 dBu
7 C/ \& ]: h0 `Output impedance ≤ 50 Ω, balanced/floating9 g: K# E5 N5 G# w
Minimum load 200 Ω& `# j- ?" c% S0 x& j) k$ a
Maximum output level +24 dBu% c3 O! g& ?4 C+ s- y3 d
Frequency response ±0.2 dB, 30 Hz...16 kHz
9 ]+ q$ a9 v! W, W3 m) FGain 14/30 dB; two fixed steps1 `8 {; O" a7 g* X! e* Y) r8 o. L
0...17 dB; variable
5 ]$ q }7 W2 q% h8 j! u+ a2 VS/N > 100 dB; gain set to 6 dB, line level +6 dBu" D8 K4 A2 {% ?7 o
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |
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发表于 2013-1-19 13:19:53
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