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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
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英文电子说明书
5 l: W9 y# K' v! @5 Z[1] POWER Switches the unit on or off. The unit is ready to operate with the factory0 v9 f5 U( Q7 L; n
default settings. The subsequent settings remain stored in a Flash EPROM
% B/ a$ f' P) ]# Q6 V S& f# f6 V9 M$ A after switching the unit off (unit contains no battery).
+ G% H2 ~9 o! L[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position0 ]' ]/ v) D# a* G$ ]" N
between microphone and line sensitivity setting ranges.
& I* c3 p2 E8 v8 R9 ] Mic: Range –40...+20 dBu% f: b8 H2 s8 e8 {$ f
Line: Range +14 dBu, +24 dBu
, [) ]. e3 @' f e3 K/ R[3] Fine Gain Potentiometer for fine input sensitivity setting.- v# T. u3 ?( T" b' _% r; R/ o" w) x
Range of additional gain: 0...+15 dB.+ i, S2 Q. C- D( }, t" B
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents' g" K5 o# {, N+ O6 w: s/ Q5 N
the dBu value of an analog input signal which causes a full-scale output of
" X' e: f; b& o. \, A, c the A/D converter.
7 ]7 I% T2 e! p: y% v! Y3 M. h Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
2 }+ E/ c/ i {3 [ the peak level is therefore +16 dBu. The “Input dBu FS” rotary& X6 R+ Q7 O, a" F1 {/ m
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
: d2 t1 r9 h& N1 c8 K, c4 J Gain” potentiometer [3] increases the gain by 8 dB.
. {1 h, |% Z0 f3 [2 t1 L[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.$ F9 s) K, M1 E
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
! T; _- e! Z: L+ _ r have more body; percussive instruments are less aggressive.
7 P, D' h8 [" p O4 H The group delay behaviour due to AC coupling of the stages is different in
3 s- C- T2 Y5 ^ tube amplifiers.. m, x. t7 M2 d1 q2 X3 N! ^8 Y
The “Bass Warmth” control allows to select the frequency range; L: q% \! J# I
(10...200 Hz) within which the effect is active.
+ j6 I, U# o- c8 {7 ?: m. K[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
% U$ `, [3 Y' g/ C, U% s: k$ D& P Valve amps have a characteristic response, mid-frequency harmonic content
9 Z' m2 T" a7 Z! u, }; [ is emphasized.
- {6 L, `1 @8 z& \ s* M1 Z/ y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.5 O6 j1 }$ T& T8 W- w1 w% V
The harmonics spectrum of a delicately overloaded valve amplifier is completely
5 U4 g6 c/ U1 u, `) g: n different from an overloaded transistor stage.
! T4 R' w+ {: ?0 V# Z5 e3 _" W The “Gain” control adjusts a gentle overload while the odd-harmonics content* g6 X9 ]( N, P# h
can be adjusted with the “Clip” control.( |7 D" @, f, i4 J
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24' ]8 s; [; {3 o4 ]' Y
dBu FS.
% r4 v4 ?8 ?9 {. f! y* m[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the1 E4 I1 O6 \( I* C) I3 g0 D7 `
desired channel.
$ w. }% r* z) ~; c* m The “VALVE” LED is on when the Valve Dignifier stage is active.; Z& U: ~! D; N3 `) g% W
[9] INSERT INSERT function.
5 @; g1 f f! I" t$ T& Q& D1 ` First key pressure: INSERT POST VALVE, the Insert Send is tapped after8 a, U8 g2 R% T0 A5 n0 \
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
I, w' o7 u* I# t1 \, z+ Q and AES/EBU outputs.
, b! r, P- r* |% A) Q7 q Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
$ Q8 R0 W R' W! ~+ B$ D the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
5 i6 \8 N7 m) z( H6 }. P. D the valve dignifier stage to the Line and AES/EBU outputs.
4 `5 n" J6 |8 ? Third pressure: INSERT OFF, the input signal is fed via the valve dignifier c& _9 Z- z D% M
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
4 E) y, T" h. J* z- u1 ?* w/ i8 `0 c receives this signal; display: none).
+ j; N; h% B6 @! R Insert Send and Insert Return are electronically balanced and equipped with
% r- V3 _* T; {& `$ U2 o; i XLR connectors.4 w. ?- H8 j$ [6 ?
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or; b% c1 Y8 Y. s2 c/ |7 t$ g
ADAT digital interfaces. Each input channel can be switched to one of the& d/ ^' @" v' U5 k9 {
channels 1...8 of the multichannel interface. If desired, also a mono mix is* U3 s% S7 ?: d
possible by selecting the same output channel for both input channels.
5 r, f( b% @/ }* x1 l[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
+ a1 d& l7 A- d! O8 E/ X! l channel.& s9 q3 u$ u$ Q1 j7 w/ _' Z, w
Can be operated only if the input gain selector is in Mic position. The
6 x' o5 @( f1 l5 [ setting remains stored when switching over to a line gain setting.
2 H% V& o& y8 R$ y, y: X$ ` ~[12] Activates the high pass filter on the microphone inputs of the desired channel.: I* ]; C8 t* s5 i( _- P
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
0 D# N. b+ j. q9 v/ M9 t! D1 F( K Can be operated only if the input gain selector is in Mic position. The
. W/ S0 x! t# \ setting remains stored when switching over to a line gain setting.
$ V2 a% b) y) ^ y; c- {, e4 N4 `[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
) r9 v/ Y* e' B' F' U( H& d[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:& k( M$ q. D8 e( ~ n
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
3 }4 |$ F7 }) E5 x& [7 G& e Noise Shaping (display: “16NS”) can be selected.
' a+ O' G. F ~7 S2 i1 q( ^[15] SYNC Selects the synchronization source for the unit. Possible selections are:
+ o0 u! ]* g2 o) I5 S INT 48 Internal quartz reference, 48 kHz
% R* G% [, v0 ^% B2 X; S INT 44 Internal quartz reference, 44.1 kHz
, _4 n! T) D7 ]- E- V. z WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized). O, S$ r1 N3 z! N! r6 |. x3 r9 L
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized): C- s, n) e+ y0 G; @
AUTO Selects sources automatically in the sequence AES-WCLK-INT1 T9 A) z {: [* f' e! ~- B! I
VAR Indication only, active if the external source frequency deviates from 48 or3 R3 {& n# K8 |# w2 d; G5 f
44.1 kHz for more than approx. ±3 %.- S7 Q6 W7 v- }+ T0 m6 V6 x
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –) ^6 U: I8 ^0 Z, e, M" A
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.9 f* i! } O* z: z3 y; x; R
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce& e/ M8 D, T2 t. M
the danger of overloading the A/D converter with short signal peaks (if
. l/ ~* \, g* G; e% B* I" @ active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
) ^6 p5 f( |1 U5 g8 g3 p allowing for approx. 6 dB reserve before hard clipping occurs
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