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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 5 i3 a9 X1 B& i) }) v/ V
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英文电子说明书# o3 W, G5 ^3 a
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory1 q* _ s' n/ b8 N. v0 u
default settings. The subsequent settings remain stored in a Flash EPROM
0 V3 s! e$ F* u! D" k after switching the unit off (unit contains no battery)." u, I7 X, Q' r
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; u% r' {8 t% s! _' @8 x" w
between microphone and line sensitivity setting ranges. D! M; A! o9 ]. T# _
Mic: Range –40...+20 dBu" T* a4 c% K+ X/ _
Line: Range +14 dBu, +24 dBu
* S4 ^, x+ ?0 w% V1 g[3] Fine Gain Potentiometer for fine input sensitivity setting." A) ^8 t9 i* |% \, D
Range of additional gain: 0...+15 dB.
( Q' t- s/ w7 R+ M& g G; s, u1 n ? Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents, M* ]7 r0 J V8 \7 X
the dBu value of an analog input signal which causes a full-scale output of" q! s6 D7 E0 C W3 o% z
the A/D converter.
9 s5 y6 Z, f% V' g Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;0 P, O; d8 r- `
the peak level is therefore +16 dBu. The “Input dBu FS” rotary! ?. i. `9 v7 I- W8 T. y7 b- _8 h
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
6 k F$ E6 x. z3 \1 w Gain” potentiometer [3] increases the gain by 8 dB.# l* u2 W3 W) `1 Z3 ?' J' H
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
2 z# \' o3 C# ]8 e( }: ]+ w, N[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals* I% Z" n1 w4 L
have more body; percussive instruments are less aggressive.
; _ ^2 P4 B0 n/ f' u2 T The group delay behaviour due to AC coupling of the stages is different in3 ~& R m) g, U3 E
tube amplifiers.
6 p# K5 _2 P: ^* L1 d The “Bass Warmth” control allows to select the frequency range
' Y' p) L8 \6 ]( W (10...200 Hz) within which the effect is active.: ?/ Y4 }* D! |) _* p/ H
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
3 f: B9 V6 O' ]% K Valve amps have a characteristic response, mid-frequency harmonic content( T$ c5 p- B* [2 y2 ~; k
is emphasized.
2 X5 m1 m8 \, Y1 p[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
1 p( ~) }! `- a. ~ y1 ]8 b The harmonics spectrum of a delicately overloaded valve amplifier is completely
Q2 l* ]" b1 z3 J6 x% I$ p7 W* O) t different from an overloaded transistor stage.
7 S5 O: G8 g- @$ z @ The “Gain” control adjusts a gentle overload while the odd-harmonics content9 q3 l- @7 Q9 i
can be adjusted with the “Clip” control.
4 h J$ S# I; b0 |7 V% [[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...241 L9 O: }( R, S
dBu FS.+ A$ D7 M5 G5 O9 y6 d
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
. r# ?' X' D" k0 L# Z' m5 p desired channel.' l! ^7 @ B) C% o& a$ n$ P
The “VALVE” LED is on when the Valve Dignifier stage is active.5 }0 S$ ^5 z0 ~9 Z) C6 S' h! [
[9] INSERT INSERT function.
% z" Z/ e0 e# }4 ~ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
7 d; t' h- u$ L9 Z) A( j/ Z7 f, @5 Z the valve stage (display: “INS”); the Insert Return is directly fed to the Line, H/ s' E+ ]2 {5 j5 Z1 m
and AES/EBU outputs.
2 d, G: x, E- {8 H9 K+ ~, r/ K/ Q4 v Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
+ j2 X- {4 X% T the valve stage (display: “INS” and “PRE”); the Insert Return is fed via, S3 M: h* y/ [/ T/ o8 M
the valve dignifier stage to the Line and AES/EBU outputs.) T, M n' @$ b$ N, c+ y" O4 p; F
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
0 O; I' f) v! a9 V* ~" R/ | stage (if active) to the Line and AES/EBU outputs (also the Insert Send output6 F' V7 K9 d7 ~$ G& @
receives this signal; display: none).
5 _* ?: ~( z/ p- V5 I" G Insert Send and Insert Return are electronically balanced and equipped with; K: B; f( z) ]9 U( Y
XLR connectors.
6 U% u0 R# v/ E0 ~: g* F& S[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
8 D! F1 C1 l4 r8 A ADAT digital interfaces. Each input channel can be switched to one of the
! x) B ~& A) C5 c) E channels 1...8 of the multichannel interface. If desired, also a mono mix is+ ~3 r! P" v" W2 J
possible by selecting the same output channel for both input channels.
6 @2 `" N8 h9 n. z[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
$ D& s) l8 E2 ~# {& P P channel.6 {4 k+ V# e( o: z
Can be operated only if the input gain selector is in Mic position. The2 M" \7 y: J; P. r5 M. _3 P/ u! q
setting remains stored when switching over to a line gain setting.$ y$ x4 }9 \5 T/ X% b6 E; F: o
[12] Activates the high pass filter on the microphone inputs of the desired channel.
4 d7 ?, c" T& K8 t" [' @ Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
2 }- b4 g+ w1 w+ ?1 ?5 p Can be operated only if the input gain selector is in Mic position. The7 L: T+ U9 I/ R& z
setting remains stored when switching over to a line gain setting.. j" J& {. X- U/ X2 x- A
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
" X k* m( b" y[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
1 y( ]/ v8 D S “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with5 F* i2 c6 Q6 m7 O2 q. i5 h
Noise Shaping (display: “16NS”) can be selected.+ O% B. p: V. I/ k
[15] SYNC Selects the synchronization source for the unit. Possible selections are:4 r7 C V# k- i5 ^7 j, k
INT 48 Internal quartz reference, 48 kHz( Q: F8 o2 o: T: r/ o9 o
INT 44 Internal quartz reference, 44.1 kHz7 @8 ~+ H8 y) j3 _! Y6 V* N8 C
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
+ n& O: }0 m) L& g6 ]% G7 l; M AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)+ O! |( O. s1 y; ]( d+ ^# _
AUTO Selects sources automatically in the sequence AES-WCLK-INT
$ P+ P0 q! z- z$ }$ b! ? VAR Indication only, active if the external source frequency deviates from 48 or
" j1 _7 ?( k5 S/ [# m5 q. K4 C 44.1 kHz for more than approx. ±3 %.8 y5 @+ P1 Y" J, j
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –" d; Y: j: F+ p4 `' |
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.1 B }, S7 Q) q+ M) T5 w
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
; n+ w* @ W% A8 ~) B) F) K the danger of overloading the A/D converter with short signal peaks (if
4 X6 ^" k) _0 B: _3 d% | active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,/ z. Z5 V7 o% n# y
allowing for approx. 6 dB reserve before hard clipping occurs0 ]3 p2 p! m. H* P: Y
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