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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 ; z' g5 p" ?/ j+ ]* y: T
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英文电子说明书, ]: H5 [ N7 I1 g) ~
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory. Z3 M# ?! M: e. ^
default settings. The subsequent settings remain stored in a Flash EPROM' }9 l r+ S) B
after switching the unit off (unit contains no battery).
! D, v0 l, w4 Z. Q[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; F0 q' m6 U1 ?2 t( I; o
between microphone and line sensitivity setting ranges.
6 c" B# c, H: k3 t# a Mic: Range –40...+20 dBu
% M: Y/ Q8 ]: z, h. Q+ j Line: Range +14 dBu, +24 dBu9 x" L8 d: g, I: r$ N
[3] Fine Gain Potentiometer for fine input sensitivity setting." E& t0 H7 W- k9 y3 [* \
Range of additional gain: 0...+15 dB.
# b! n! v# k1 p) J1 v Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents1 x' U2 [! l& i2 U$ D
the dBu value of an analog input signal which causes a full-scale output of
/ r5 {! r! `" O: H H7 j* W% ]$ _ the A/D converter.
. A" W9 V7 a% d; I) b" b1 Z, ] Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
: v1 [+ j3 L3 [5 u8 n: w the peak level is therefore +16 dBu. The “Input dBu FS” rotary# h6 I0 z3 D: T9 d8 w% o
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
- `% c4 x1 `" k" \ Gain” potentiometer [3] increases the gain by 8 dB.$ q, Q$ }! ~6 \( U
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
5 p" j) j; H8 I) W" r- D9 T3 X[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
+ O2 B* R0 ^+ C, Z& u2 z have more body; percussive instruments are less aggressive.
$ t4 d- t: {2 v5 o3 P3 }$ \ The group delay behaviour due to AC coupling of the stages is different in( a' F) ~1 c6 p3 b, }
tube amplifiers.
% G+ M i8 B6 @: Y5 ~; g The “Bass Warmth” control allows to select the frequency range/ M" a+ S: d1 `- N
(10...200 Hz) within which the effect is active.4 f$ m: U/ ]: L3 c0 P
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
3 u7 z3 \' F, E3 O; C! { Valve amps have a characteristic response, mid-frequency harmonic content, ~/ w& q! t3 Q% T( y' U& @# ]
is emphasized.3 T$ m4 Q; e0 s& Q" L
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
9 O" A% I+ y+ w The harmonics spectrum of a delicately overloaded valve amplifier is completely' `" c! M! O2 C; B" ~6 O
different from an overloaded transistor stage.
" m% ]8 i5 w z" e) O The “Gain” control adjusts a gentle overload while the odd-harmonics content
( x: ]; x2 a% m8 s# N+ P2 E can be adjusted with the “Clip” control.# w+ x0 d0 G$ Y1 a
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
3 `* C$ X7 i/ ?7 u9 h/ m* c dBu FS. ^' A+ Q* m( W7 H9 U. L
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
/ ?) [1 v P$ O9 T6 q: H6 { desired channel.
, @3 T# D* m4 [5 i The “VALVE” LED is on when the Valve Dignifier stage is active.
" ^: e9 O) `1 r, M+ D[9] INSERT INSERT function.& Q. j Z3 i9 I- c4 Z
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
: O( M" C) N. K% c, {% A the valve stage (display: “INS”); the Insert Return is directly fed to the Line$ d5 r; S6 b+ N: o' C% {
and AES/EBU outputs.
9 ]/ q" w6 n3 M$ `* w+ ~ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
/ {2 Y3 x$ F0 [( t( C the valve stage (display: “INS” and “PRE”); the Insert Return is fed via: A# z, u' H3 m: T# c4 J
the valve dignifier stage to the Line and AES/EBU outputs." \' t$ W4 E" F# @1 ^7 a% r
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
& g: `; F: w; _7 T* U0 e$ A stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
9 ]$ f7 q6 Z9 t) h receives this signal; display: none).7 c3 Y; ^# U8 ?
Insert Send and Insert Return are electronically balanced and equipped with
0 ~ p6 m2 _3 o7 S; U XLR connectors.- ~, k8 y) f1 l5 Z! y9 ] I4 u
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
- W% b* }1 t- ]3 w( T: T2 @( s( }9 m ADAT digital interfaces. Each input channel can be switched to one of the
; V" ^3 B, o$ ~+ Q9 u" j channels 1...8 of the multichannel interface. If desired, also a mono mix is
' R5 t6 f$ m- I, h3 ]! L) m4 i possible by selecting the same output channel for both input channels.! B( {. s3 h7 k" ~
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
- ]- c2 D& Z8 m channel.! o. @0 a- }5 y" v3 L. `, Q: O
Can be operated only if the input gain selector is in Mic position. The
6 f+ Z n" r. D5 n u' h setting remains stored when switching over to a line gain setting.
% j+ d5 i6 b0 x+ K7 x[12] Activates the high pass filter on the microphone inputs of the desired channel.0 i- d b& Z) O: x
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.& Z! ]4 w! F5 n% a
Can be operated only if the input gain selector is in Mic position. The
! @, @+ p% v' N# p/ W6 Y setting remains stored when switching over to a line gain setting.
2 M% ^) w% O1 ?/ d0 Y[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
( M( f: A1 H5 B[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
& `+ K9 X! c- F* O' @% N% x1 g9 Q “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with8 f; I' H* `2 {& P' f% x
Noise Shaping (display: “16NS”) can be selected.
: f9 D1 i2 k$ v[15] SYNC Selects the synchronization source for the unit. Possible selections are:
3 S% \' O/ r4 H' }6 V INT 48 Internal quartz reference, 48 kHz
9 Y7 d- Q# T+ U4 _ INT 44 Internal quartz reference, 44.1 kHz0 ^, p& O& a3 y* f
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 D) b; D5 H( S; C' ^$ C AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
R2 B ^) h6 U AUTO Selects sources automatically in the sequence AES-WCLK-INT
# m9 ^# [7 g( t! Q VAR Indication only, active if the external source frequency deviates from 48 or8 [% a2 T Q+ K
44.1 kHz for more than approx. ±3 %.
5 T2 T+ |. f' }5 v5 V7 C+ x7 j[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –7 f' I3 v1 m) g8 T
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
! E d4 Y- r' }% _[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce. O) M, L2 x4 |1 t+ a4 |3 E
the danger of overloading the A/D converter with short signal peaks (if9 s6 v; x( _) B D# N8 E
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
8 G R+ o; T0 T- f4 }: O5 c allowing for approx. 6 dB reserve before hard clipping occurs
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