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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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& y& N2 e! y. C$ X' w英文电子说明书0 q3 e# g; C* y/ y2 I$ \7 q% V5 s$ z
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
' q) G0 t' }- M3 {) K' L# F default settings. The subsequent settings remain stored in a Flash EPROM
* J% q& A, u2 e7 Q# y after switching the unit off (unit contains no battery).- p8 Z9 W: Y1 ]
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position7 f" B2 P- v% _3 ]$ D- i, G
between microphone and line sensitivity setting ranges.
9 y- X* _! v' k, X Mic: Range –40...+20 dBu& [1 U5 N- c( N* z0 S
Line: Range +14 dBu, +24 dBu" @& O9 M$ T3 v: _. X: k4 u( e
[3] Fine Gain Potentiometer for fine input sensitivity setting.
1 `8 x J2 R, W( ^5 | Range of additional gain: 0...+15 dB.+ @5 W+ {: L* j& q! {0 F
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
+ k* {* [, t1 N% a2 u6 W the dBu value of an analog input signal which causes a full-scale output of
! t: E2 t3 u+ N7 N) b3 u- f the A/D converter.- i0 Z! s$ _5 g( e
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
! Z9 l+ I1 H2 \+ n the peak level is therefore +16 dBu. The “Input dBu FS” rotary
* f5 `6 u4 |! d# A switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
. Z1 \) R3 P: ]2 n& x Gain” potentiometer [3] increases the gain by 8 dB.
6 J' G3 G! S* f U. l, X7 v[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.; o7 ]8 G* L2 a$ N& }
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals* v8 j& T+ j5 y, A: w" z+ m
have more body; percussive instruments are less aggressive.! E+ @5 i9 ^3 A$ Z% U+ H
The group delay behaviour due to AC coupling of the stages is different in/ k% d+ @3 j% W' x
tube amplifiers.) E. g9 G' M5 x! c1 @# T* E1 r
The “Bass Warmth” control allows to select the frequency range
A$ x5 ^4 f4 k( @' e (10...200 Hz) within which the effect is active., z, h" _: Z) B4 y7 k
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.$ r, }& s3 W0 X7 H
Valve amps have a characteristic response, mid-frequency harmonic content
$ ?6 d! ^+ a9 ^* p1 m is emphasized.! d' E( J. ?8 T0 b1 |
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
; f0 x: c7 \; h4 z- m6 M The harmonics spectrum of a delicately overloaded valve amplifier is completely
* F: N( o( c4 c5 V. K0 j- C different from an overloaded transistor stage.# P( T# S8 C6 [5 ~, x: p
The “Gain” control adjusts a gentle overload while the odd-harmonics content0 w, R) ?5 q F6 y& D
can be adjusted with the “Clip” control.
* F: U# V* h/ J: t9 W[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
2 ]6 X- F, V4 w7 }+ P dBu FS.
: J" ?: f9 U/ W7 n[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the+ D8 O: N8 m& M
desired channel.8 _' J3 R5 t, k( Z+ t
The “VALVE” LED is on when the Valve Dignifier stage is active.5 {& C1 R" s6 ^* y& C
[9] INSERT INSERT function.$ U8 n+ _7 o' |* u4 T# v5 y
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 p8 x$ w) a/ [8 n4 V/ t the valve stage (display: “INS”); the Insert Return is directly fed to the Line5 i1 x+ n; \. M9 r- p
and AES/EBU outputs.
+ Q4 [/ L1 ^5 O8 Z/ B Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before) C6 j3 Q% H1 p; R* ?4 v* X
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
0 h8 B( `8 v+ b% w the valve dignifier stage to the Line and AES/EBU outputs.
, U2 y# e/ m2 X; J% I' C Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
9 O% h1 @3 G5 f9 i- p3 U stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
- c9 h4 N0 {2 t& ~/ c receives this signal; display: none).) j# r8 v- a5 f% u( ^; o
Insert Send and Insert Return are electronically balanced and equipped with
/ I! z7 b3 M" D0 e3 L/ {% {, y XLR connectors.
% W1 A H+ A8 w4 N9 X[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
' Q8 i7 L2 V& N1 v0 T ADAT digital interfaces. Each input channel can be switched to one of the
6 c6 N! w' S( {' `3 G channels 1...8 of the multichannel interface. If desired, also a mono mix is8 Y: F, c1 ^- M! H+ Z$ i" n$ d' H9 \
possible by selecting the same output channel for both input channels.! s0 D, N7 h) Z R
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
* W& I# M% u7 ~& L& f channel.9 {2 X$ G7 z" v* K# O
Can be operated only if the input gain selector is in Mic position. The9 }4 k% V8 I$ a) _
setting remains stored when switching over to a line gain setting.
" V8 h& n1 z) c% T8 E[12] Activates the high pass filter on the microphone inputs of the desired channel.2 i8 I' y4 t8 {! W# s; n
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.+ W' P; w, f( h& ~# B0 [$ n- z
Can be operated only if the input gain selector is in Mic position. The+ x* `( T6 O: W, w
setting remains stored when switching over to a line gain setting.
1 O& G; `$ I* `5 g& }[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
- v% Y/ i; t) ^. @& a[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:" c8 C/ i/ Q4 ?, `# Y3 r
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with1 M8 y. F2 T7 E! ~
Noise Shaping (display: “16NS”) can be selected.
- v5 ?$ j9 M" o# h9 Y[15] SYNC Selects the synchronization source for the unit. Possible selections are:
5 C6 I2 Y* ^5 `6 A5 J- w+ s1 C) n INT 48 Internal quartz reference, 48 kHz
8 [8 r3 @' {' N3 }* I J INT 44 Internal quartz reference, 44.1 kHz$ E5 B. a$ E" T) I7 Y# a
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
5 u4 \/ v% I$ C) H AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
0 C0 Y, ^0 c$ c6 F _ AUTO Selects sources automatically in the sequence AES-WCLK-INT
2 f& Y" P4 V: h' t3 F VAR Indication only, active if the external source frequency deviates from 48 or
/ g! K6 f- |6 t" y/ l# n; m 44.1 kHz for more than approx. ±3 %.5 n2 m6 D* J/ b2 S: ?3 J5 ^
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
: w4 q+ r6 h/ F% O: ?2 O0 P either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.% ]9 K; B! G" V/ w; d( ~3 s9 E. f
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce" A# a% {/ b- | Q4 ?/ g, N! E" b
the danger of overloading the A/D converter with short signal peaks (if
6 Q; x1 y& L% z- b( B active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
+ M( R2 ~# O4 {% e1 p" n$ \ allowing for approx. 6 dB reserve before hard clipping occurs$ l1 _* C8 E8 e6 l$ }
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