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发表于 2012-5-21 23:23:18
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 ' H" d6 L1 W l
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英文电子说明书
' w. k' O: T7 i[1] POWER Switches the unit on or off. The unit is ready to operate with the factory! ^7 y, Q/ R9 w7 @+ q( A+ F& c5 N4 D
default settings. The subsequent settings remain stored in a Flash EPROM
: w w2 c5 ? J, b- a6 A8 M: Y after switching the unit off (unit contains no battery).$ s6 b) Q; `* v% S; ?5 B7 g
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
' X1 y' Q$ s2 e between microphone and line sensitivity setting ranges.
! }8 F( h0 L" O* K Mic: Range –40...+20 dBu6 t+ u& R0 Q+ r: O/ q5 t
Line: Range +14 dBu, +24 dBu
0 C6 d( J; U& ?% C2 t' c1 S1 {[3] Fine Gain Potentiometer for fine input sensitivity setting.
2 o+ l o n# N/ n$ v7 Z4 S4 _9 @- N Range of additional gain: 0...+15 dB.
$ x n$ ?8 e6 `9 [& i6 S* s- s Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
7 \6 ?6 P u, l. k the dBu value of an analog input signal which causes a full-scale output of# ]( ^0 x+ h) ~7 B! V
the A/D converter.0 H2 z3 B, l: |! i3 i
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;, g/ K3 b/ T$ }3 @1 H
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
* v" d8 g6 _) e switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine: a& l- t' ~. } Y5 d3 S% K
Gain” potentiometer [3] increases the gain by 8 dB.
( A" r$ y- v5 D4 m6 y[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
0 d- {' a+ G0 [; ^. R8 k) o3 z* }[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals" n) x; m# Y7 n2 {# m# c* r
have more body; percussive instruments are less aggressive.
- V+ u( H; {' _$ A6 Y1 z' R The group delay behaviour due to AC coupling of the stages is different in
1 o: B3 ^) B$ L3 w: r8 V tube amplifiers.6 G9 M9 `, f; Z
The “Bass Warmth” control allows to select the frequency range; @/ O# W, k6 J. p+ u, x/ Y
(10...200 Hz) within which the effect is active.+ p: [0 A/ V5 T5 H" ^
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.2 r" f: N8 C8 h& j3 b8 d4 B) B
Valve amps have a characteristic response, mid-frequency harmonic content
5 p& K* i+ ~: l. _; U is emphasized.
9 s0 n9 v) {. s) k4 C4 @1 ^& j3 I1 d[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
& L4 X2 V# n) J& Y The harmonics spectrum of a delicately overloaded valve amplifier is completely4 C0 d" G0 H: x" G. s
different from an overloaded transistor stage.+ l& y! H* _, P _: ]
The “Gain” control adjusts a gentle overload while the odd-harmonics content
2 w- J6 X5 F) N, A can be adjusted with the “Clip” control.
! R m5 W+ O* w0 K[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24% A: u* i5 |# M7 i: s! r; w! O
dBu FS.
. l( w0 b, j! _6 u2 ^[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the: y" X! w9 H, x4 v, L& Q
desired channel.
6 [+ p( a* D& ~1 j+ W% d6 B The “VALVE” LED is on when the Valve Dignifier stage is active.+ m a, r5 j( D; E3 F5 k
[9] INSERT INSERT function.
% K# X9 `7 }0 e4 \! t' }. a First key pressure: INSERT POST VALVE, the Insert Send is tapped after
, V0 t5 l( `9 w+ Y8 a2 \ the valve stage (display: “INS”); the Insert Return is directly fed to the Line5 F2 N2 L! D! j, K; c1 C, W2 o
and AES/EBU outputs.1 O, o2 z) B4 q+ ]& w" ~4 V. S! T* s
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before) f5 {) W& t) H, Y) D% u( @7 o7 ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via. X+ m v, _7 Z/ o+ P# T9 Z( y
the valve dignifier stage to the Line and AES/EBU outputs.0 s: b- r2 K( S- b( } I
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
, B1 `4 S8 \: r stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
" ?& l! ~" b6 g" d9 } receives this signal; display: none).
: M2 d3 L. U8 a1 M E& n Insert Send and Insert Return are electronically balanced and equipped with3 v8 d0 Q# Z) ?& P& u
XLR connectors.. p A, K! o. s$ k% S) m7 Z
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
9 b$ z& H% y( e1 [) W ADAT digital interfaces. Each input channel can be switched to one of the
9 R) ^2 h* O- F channels 1...8 of the multichannel interface. If desired, also a mono mix is: v& W4 o) Q1 @9 p$ S! z8 _8 ]
possible by selecting the same output channel for both input channels. c4 g) A) W" ~3 S
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
% J4 t1 `1 W8 c3 e- i. E channel.
, o5 A/ v4 g: ]) g' b Can be operated only if the input gain selector is in Mic position. The5 G1 N3 H5 U9 x: J! j1 U
setting remains stored when switching over to a line gain setting.
" o. w( g+ g! T[12] Activates the high pass filter on the microphone inputs of the desired channel.
2 X+ I( _3 ?9 f0 R8 h1 b' T } Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave./ }) r# C, }/ {: I
Can be operated only if the input gain selector is in Mic position. The# S6 \: `, Q% u! ~9 j
setting remains stored when switching over to a line gain setting.6 a$ d/ U. p6 X7 t* k, P3 s4 n
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
# r# W d8 p& i# e8 t: X[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
, h n& G }: E9 @8 ^) k6 R “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% i. x) j' ~/ F: A5 H
Noise Shaping (display: “16NS”) can be selected.1 C& K5 m5 b4 ~; \, J* Z
[15] SYNC Selects the synchronization source for the unit. Possible selections are:: m* D0 d8 ]" b/ i
INT 48 Internal quartz reference, 48 kHz
. O! s, @! u/ R5 | INT 44 Internal quartz reference, 44.1 kHz
( V4 u7 K! q8 M# k1 S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)2 o& c. ~3 x9 U) s6 o" ]6 B( z- a
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
: i( B3 C+ S9 l. l4 c2 ?% g$ u4 }5 ^ AUTO Selects sources automatically in the sequence AES-WCLK-INT7 N! h* p. P; g% U {% {! [
VAR Indication only, active if the external source frequency deviates from 48 or
5 g& C9 P1 l) Y4 \4 K 44.1 kHz for more than approx. ±3 %.6 \0 k$ [' }/ n+ U
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
/ x. q- F/ j/ C" x1 E. F } either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
/ d8 J& z* K+ u" s- H[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
2 P, _1 E& Z& V' K8 s5 r" K! k the danger of overloading the A/D converter with short signal peaks (if( r( F0 j( Q* n& Y
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
0 W/ C3 u* ^/ O* b5 H( J5 R0 t allowing for approx. 6 dB reserve before hard clipping occurs
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