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发表于 2012-5-20 00:04:04
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 % j6 K' [# E* s
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英文电子说明书! t3 {3 s. [' @% r
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory. L5 u. f6 }' V5 g' a: X7 x
default settings. The subsequent settings remain stored in a Flash EPROM
& P8 m/ v( ]. C) o after switching the unit off (unit contains no battery).* q1 B7 S' k9 a, X. Z
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
& g: F, {$ i7 G5 I between microphone and line sensitivity setting ranges.
( G/ d) W' l. [. ?* B6 \" r Mic: Range –40...+20 dBu1 P* ~ W/ N- W, C
Line: Range +14 dBu, +24 dBu
9 B; ^1 n. c4 ^2 X[3] Fine Gain Potentiometer for fine input sensitivity setting.
- g% `9 L& c# W }" e Range of additional gain: 0...+15 dB.
8 s0 a, E, u7 i% m: Z6 \6 A% N Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
1 }7 R! H4 X3 V" f the dBu value of an analog input signal which causes a full-scale output of. t7 w) l1 J' f% p5 |
the A/D converter.
+ q6 Z, K9 I* P% V Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;0 S5 R& M+ h% C$ a* R
the peak level is therefore +16 dBu. The “Input dBu FS” rotary' `/ M* ]! ]2 _! ~2 {* M
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
- t8 H0 y$ \9 \" X! }+ L! d+ \# N Gain” potentiometer [3] increases the gain by 8 dB.
5 O( ]& n# b/ \[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.3 y! {$ o; v/ i7 l# `. G
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
8 t( }+ L% q6 A; A; i# ~0 |# _ have more body; percussive instruments are less aggressive.
) X8 l w1 j' R( j- w, E+ W. R The group delay behaviour due to AC coupling of the stages is different in) l9 C0 I' C7 ^8 T9 S
tube amplifiers.# Y% x& Y. T' J* T
The “Bass Warmth” control allows to select the frequency range4 |6 O) c% d: \/ n' |# b
(10...200 Hz) within which the effect is active.
4 C, Y; n& ~2 B2 B0 y[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.6 c9 v5 ?2 g- O( H( E- U: [- u; ?
Valve amps have a characteristic response, mid-frequency harmonic content
* G3 ], C- V9 ~! ~ is emphasized.
6 K3 l5 s: C& B+ w5 G$ A$ ^% B" B[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
I9 y, G9 I7 e* u The harmonics spectrum of a delicately overloaded valve amplifier is completely
6 w- H/ y2 g9 P+ P( ~+ ]$ V( e different from an overloaded transistor stage.8 ]+ {3 \* F; v$ `$ E, Q
The “Gain” control adjusts a gentle overload while the odd-harmonics content
8 t5 [5 x( Y0 y9 H: a1 l can be adjusted with the “Clip” control.8 B/ u I B M7 E0 ^
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24- L. u/ e' D7 ` z
dBu FS.) d6 |% G. q- Y4 `# e7 S
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
; A& e+ ?2 T& z9 @# m O desired channel.
9 @0 n& q* P0 d9 o) | The “VALVE” LED is on when the Valve Dignifier stage is active./ ]# U9 s6 |. N4 c9 Q% R
[9] INSERT INSERT function.6 p+ ]$ ?& p6 @5 _
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
# Z4 y; `: n& t, }* b the valve stage (display: “INS”); the Insert Return is directly fed to the Line
) I0 b, p( ?6 D" h and AES/EBU outputs.
+ w9 x3 `* D* N* \, w Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before' i: @; C; H1 Q! [# ?
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
2 e+ I( R; b1 O3 ~8 e$ Y7 {1 O5 @ the valve dignifier stage to the Line and AES/EBU outputs.
$ K- o8 P% |- n; c: T1 j- ^0 Q Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
9 E1 I' N: b& | stage (if active) to the Line and AES/EBU outputs (also the Insert Send output/ B$ A6 ]3 [, _$ W- ?+ M2 s" I
receives this signal; display: none).2 o# D# `0 X) ^: r
Insert Send and Insert Return are electronically balanced and equipped with' `% p; d% I/ P$ |; q3 w# I
XLR connectors.; e2 d4 r' q; c- N
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or1 d# q* o! T% P( L4 t
ADAT digital interfaces. Each input channel can be switched to one of the+ Y0 |& w* n g9 \$ ^7 ]/ A
channels 1...8 of the multichannel interface. If desired, also a mono mix is
! t; x2 l+ ~7 h! v6 j( a4 @ possible by selecting the same output channel for both input channels.
6 d7 t# i3 v$ K[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
4 C/ {1 A6 Q& p# H( X H: V" f channel.
3 N8 Q0 D7 N. h# j" N: z) O! e" z Can be operated only if the input gain selector is in Mic position. The6 G8 w6 k& A/ c- I6 \
setting remains stored when switching over to a line gain setting.
/ _$ ]+ J" {/ o+ e) r[12] Activates the high pass filter on the microphone inputs of the desired channel.9 V4 C' }) e; P2 b
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave." M7 k, S S- L8 ~
Can be operated only if the input gain selector is in Mic position. The
" g# ^7 s( \( i$ s$ Q# T setting remains stored when switching over to a line gain setting.4 M: c; K3 j8 C. _: Y
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
, k( T) T- ?' ?* G[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:: x' ]4 d6 j' S1 F* B& t& @% Y! E/ ^
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
6 t! j1 {: r+ n6 b Noise Shaping (display: “16NS”) can be selected.
, \7 R! M3 b2 s* d7 ?[15] SYNC Selects the synchronization source for the unit. Possible selections are:
9 `% R& O/ ^9 C1 m7 B) [* {4 } INT 48 Internal quartz reference, 48 kHz! ~7 `8 h& |1 N6 N8 n: Q L3 z
INT 44 Internal quartz reference, 44.1 kHz
4 C5 _8 ]- `! [; A. h WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
! G2 G) ^, y+ t4 h AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
( ?( _2 [+ s8 Z AUTO Selects sources automatically in the sequence AES-WCLK-INT; |# P: i- X& m4 O# @& @
VAR Indication only, active if the external source frequency deviates from 48 or( c/ e& f. A& N5 }+ ~4 T* ~
44.1 kHz for more than approx. ±3 %.
0 E1 t7 b$ z2 g% e8 H5 Y[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
. x9 Z- F S- T4 \& d) X either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- n9 W" p! Q; ]) r1 n/ b3 g[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce/ b% k% t, ?3 |
the danger of overloading the A/D converter with short signal peaks (if: }8 M. }; J3 m3 Y o1 d, U, y0 z, V
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,( j5 \* F7 a( E! }% w& E
allowing for approx. 6 dB reserve before hard clipping occurs
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