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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+ U1 ?/ e" [7 Z3 w! r1 }, X9 M% R# L
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
7 F4 p$ V, [( N) E2 l default settings. The subsequent settings remain stored in a Flash EPROM
{' M2 \5 E9 F/ Y3 @! V after switching the unit off (unit contains no battery).
0 b( y- l! ]: p2 _. r' I: |[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
, }, ^) O, W& r9 g9 |9 H between microphone and line sensitivity setting ranges.
8 t5 m1 m$ X9 u( x$ j; \9 A& d* C Mic: Range –40...+20 dBu
9 G9 B) B9 [3 q1 x: B8 x/ ` Line: Range +14 dBu, +24 dBu
, p7 Q- h- Z/ [+ r2 g3 X[3] Fine Gain Potentiometer for fine input sensitivity setting.2 q+ p) y: c- Z }. H. f
Range of additional gain: 0...+15 dB.
0 P$ g( }: W- q7 K Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents+ P: C, d$ S0 g% X$ `. w2 e# K
the dBu value of an analog input signal which causes a full-scale output of8 C6 O. Q# O) C
the A/D converter.
& I4 `* l9 u. F4 z; L) [ Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;7 U I6 k' W3 k
the peak level is therefore +16 dBu. The “Input dBu FS” rotary& L) R+ o( t# @# T" a3 j
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
; a8 Y1 Z4 V; | Gain” potentiometer [3] increases the gain by 8 dB.
3 b% ~" A0 o; `. U" g[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
6 y' C4 f) f4 p1 C+ L8 H[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals1 T( c4 G( W3 y$ m3 v% e
have more body; percussive instruments are less aggressive.
' g( d( s/ o/ B* H7 l# h The group delay behaviour due to AC coupling of the stages is different in9 V2 c1 v( i% \: @( d# s( V# y& ]
tube amplifiers.5 Z% O o' C9 E9 L: C- J, ^
The “Bass Warmth” control allows to select the frequency range
7 [! [+ @+ v" h, i2 @: g (10...200 Hz) within which the effect is active.
3 P3 s5 d5 P- w7 n, c) `( r6 D[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.0 j9 O4 x- W- }# o7 u
Valve amps have a characteristic response, mid-frequency harmonic content
) l& w6 R" y$ p; g1 g6 U+ n is emphasized.6 D! E# |: ^* j- k' }/ r
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
6 E+ C- g+ S! h The harmonics spectrum of a delicately overloaded valve amplifier is completely
: q: j) B) p- q# [5 H& Z& a1 Z( L different from an overloaded transistor stage., h, g; B! \/ q( i$ V+ u
The “Gain” control adjusts a gentle overload while the odd-harmonics content1 n# K0 d) M& H. p/ p2 Y- `7 f
can be adjusted with the “Clip” control.; c) C. [- ~- T
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24. g7 }3 |) w: x+ C2 e3 D. [0 D
dBu FS.
/ ~3 X5 A; e0 S7 x% H[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the1 F- @" I& |4 g3 ~6 v+ ?
desired channel.; w0 n1 V! w/ r' c( Y: Q
The “VALVE” LED is on when the Valve Dignifier stage is active.7 m! k5 Z8 A" O9 ~/ ?
[9] INSERT INSERT function.
" G2 o( D" v O7 A C First key pressure: INSERT POST VALVE, the Insert Send is tapped after+ _# P% l6 m- t' \/ X
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
+ A: ]2 L* y2 }, d3 o6 M2 c5 V and AES/EBU outputs.( ?5 c- q/ X( H
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before9 j4 g- Q2 M ?# [" |% O- u
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
3 D+ X6 o. g3 N7 G1 i8 h the valve dignifier stage to the Line and AES/EBU outputs.
0 v& Z. R4 q3 b0 U Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
4 @1 {2 ]& V9 e6 [# _ stage (if active) to the Line and AES/EBU outputs (also the Insert Send output% S! F: x( H! K; Z1 }- l) b- {
receives this signal; display: none)., G, y% _ _# G9 Q+ b
Insert Send and Insert Return are electronically balanced and equipped with
& \- G, [ h/ H2 w9 }. f XLR connectors.
7 q& d5 g9 Z% I: ]6 t[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or8 |( y' B! N9 M# j7 j
ADAT digital interfaces. Each input channel can be switched to one of the4 m% k: J5 Q& ~ E& s
channels 1...8 of the multichannel interface. If desired, also a mono mix is
7 {% o1 K3 D1 N& J4 P* b3 x, p possible by selecting the same output channel for both input channels.
$ P2 d! s% _6 F! J3 x1 g$ m' ][11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone8 M K A' L8 i3 J& S& U' W8 S* ]
channel.
6 O" @# }- q' }) ]/ V1 e/ A Can be operated only if the input gain selector is in Mic position. The" Q' i/ O- ~% |# t0 g
setting remains stored when switching over to a line gain setting.* O( u0 K0 R4 S+ n
[12] Activates the high pass filter on the microphone inputs of the desired channel.
& \7 |' B' Q5 E) p1 m9 u Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.$ o3 E6 H8 B. f' \( b, L
Can be operated only if the input gain selector is in Mic position. The
) M# Q% v9 M3 W' q6 x) e5 o setting remains stored when switching over to a line gain setting.
, \& E6 }( c' A+ |$ Q[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
" N% u& T# s2 t' K7 S[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; Q- x% a9 h/ v+ }7 v
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with% c9 V2 G# S0 _% U; `
Noise Shaping (display: “16NS”) can be selected.
6 D- D3 g! S3 e* q7 J[15] SYNC Selects the synchronization source for the unit. Possible selections are:
* D) F# f, P& R+ a( p INT 48 Internal quartz reference, 48 kHz
9 _( z$ a; [3 W INT 44 Internal quartz reference, 44.1 kHz# S- F7 y) ^' ~2 t+ L. @
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 j5 M/ B) L* N$ [; x AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)4 A1 E- l: Y! m1 e6 G' n
AUTO Selects sources automatically in the sequence AES-WCLK-INT: K, q" P2 p" l3 I$ D; B& R
VAR Indication only, active if the external source frequency deviates from 48 or4 j- y/ S) ~, a, Z
44.1 kHz for more than approx. ±3 %.
9 r( h: D" g, M. e! G( z7 W[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –* q$ O) t ]* `, m; ^# ~
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
Q, V7 e2 Q1 Q* ?[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
: O3 U2 Q8 L o! T the danger of overloading the A/D converter with short signal peaks (if3 y# T- ?3 [& r' c
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,/ j( M! M, J# n4 m; R
allowing for approx. 6 dB reserve before hard clipping occurs+ G# P4 H( q% h# r7 {& d+ ]
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