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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 - d! u" m% p* R/ a$ O' {5 {
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英文电子说明书( q. ] \! i# e3 u( _ _( ]
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory/ u) h9 o9 F( H
default settings. The subsequent settings remain stored in a Flash EPROM
) a T" H$ ]+ g) R after switching the unit off (unit contains no battery).% R p+ M4 r; {, B- \) ?
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position& u) U8 p& d5 L( R6 r
between microphone and line sensitivity setting ranges.
9 M( q% \" k7 J" s }6 z$ u" f Mic: Range –40...+20 dBu
6 y$ l* t8 x' J" h& j Line: Range +14 dBu, +24 dBu/ Z9 Z: H( R3 E- x
[3] Fine Gain Potentiometer for fine input sensitivity setting.* ^ O+ @' d% R8 y4 M$ r# [
Range of additional gain: 0...+15 dB.
: d3 e* y$ k% y( _+ C/ O Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
( W5 g& h1 [! B2 V4 T the dBu value of an analog input signal which causes a full-scale output of
3 r# ~+ Q H8 b5 S6 P/ H the A/D converter.
0 x% f( ~' i ]5 G0 T" ?, _9 ] Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;/ ?1 F* z5 p$ B' u
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
6 _0 F" v& S: q- b1 T switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
9 f& Z6 d' m; [/ `- N/ j$ h Gain” potentiometer [3] increases the gain by 8 dB.
! Y' W( t) c/ j# ]5 ][4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
. I! K5 T1 {2 x. Y( J) N1 {[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
9 `! }- z; j+ o' [5 _ have more body; percussive instruments are less aggressive. d# P! e' t* F
The group delay behaviour due to AC coupling of the stages is different in$ ?2 s& o j5 |$ s8 o0 L
tube amplifiers.' K2 x# V' r2 @
The “Bass Warmth” control allows to select the frequency range
k* z& X! e2 ~ (10...200 Hz) within which the effect is active.
3 n( k! o- y) q# S- o+ X: i$ z! R7 I[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
; F' I; g, k7 v4 x0 ^; e6 p Valve amps have a characteristic response, mid-frequency harmonic content
' ]9 w; j( H, E. h5 T is emphasized., g+ W% l- [+ Y0 ]6 d# P& W, X
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.+ Z5 ]/ H# a/ L0 b3 X _. l
The harmonics spectrum of a delicately overloaded valve amplifier is completely, \7 A. g" S" R
different from an overloaded transistor stage.
8 Y/ A- Y. c9 q# m% j* a6 S The “Gain” control adjusts a gentle overload while the odd-harmonics content( o! L4 d+ B0 a; I; T; y4 p9 q
can be adjusted with the “Clip” control.- O) Q% h8 `# k8 o- j+ N9 L
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
$ F/ o4 \$ a' G2 { dBu FS.& V X: [2 t1 K4 o
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
$ B" X0 y. J: ]$ j3 ? desired channel.
3 {5 v$ N) U; N4 x4 x% z; T' X' ?* g The “VALVE” LED is on when the Valve Dignifier stage is active.
3 L0 g% _0 b2 z- h; M2 f[9] INSERT INSERT function.
" j" n: M7 b' ?. G8 h* A4 a! W First key pressure: INSERT POST VALVE, the Insert Send is tapped after
; h5 d0 N# e& f- o+ c the valve stage (display: “INS”); the Insert Return is directly fed to the Line! v' S8 L0 [3 H; N0 N0 s/ _
and AES/EBU outputs.
) P) M5 D2 @9 e" n3 {" c Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
( Y! l- @: G, D6 ~. i the valve stage (display: “INS” and “PRE”); the Insert Return is fed via0 ?; N6 e$ B$ e; E) b5 O' i2 {
the valve dignifier stage to the Line and AES/EBU outputs.
" L9 W1 R V, i7 b Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
% s& y0 E E: R% O3 O! e stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
! _3 h- r% p& x) N& d# s receives this signal; display: none).
' Y5 \ A" T2 o7 @ Insert Send and Insert Return are electronically balanced and equipped with+ N* d* z" v$ T0 }, ?
XLR connectors.
5 k3 @0 O3 _; j9 O[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or& [* w7 \" v. K
ADAT digital interfaces. Each input channel can be switched to one of the
- t* }$ J+ f! W- C* \) B8 E channels 1...8 of the multichannel interface. If desired, also a mono mix is
& v' \, @, {# g4 @& ?' X possible by selecting the same output channel for both input channels.0 ^6 V: y; `' F1 J# }, ^) |% H
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
& z+ R* q$ j6 d; F. F0 R( L channel.$ H2 `) [- v, a
Can be operated only if the input gain selector is in Mic position. The
2 I/ C, e6 m8 q/ }. M; @2 u% p f setting remains stored when switching over to a line gain setting.
/ T$ Q% ]+ Y$ V6 C# X[12] Activates the high pass filter on the microphone inputs of the desired channel.
3 _+ E$ D& {. k Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
( i5 S2 ? y2 J0 B4 { Can be operated only if the input gain selector is in Mic position. The5 G' Z2 ?% G H7 Q" U% b, Q
setting remains stored when switching over to a line gain setting.
6 i2 i3 A+ N, p! Q4 h9 ]- i[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
, @, C9 G- K6 m( ?0 o2 Q/ e[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
6 A6 B5 U) Y0 ^9 W7 }# | “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with2 `- a6 }& G& }/ }1 ^" [5 q
Noise Shaping (display: “16NS”) can be selected.
3 P0 Q4 u5 a8 V[15] SYNC Selects the synchronization source for the unit. Possible selections are:
2 o* Q3 b* x: m3 D+ j# s INT 48 Internal quartz reference, 48 kHz- x% R6 _1 {1 _
INT 44 Internal quartz reference, 44.1 kHz
1 c. ]" Y. Z' o3 [% w8 Y2 d' x' D WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
4 h) h* J3 v$ p' { AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)9 q7 O2 Q+ \" ?- t ^( i
AUTO Selects sources automatically in the sequence AES-WCLK-INT l# `# W9 y% o" Y. I# X+ f* p6 \
VAR Indication only, active if the external source frequency deviates from 48 or* M& E- [9 C. @
44.1 kHz for more than approx. ±3 %.: _6 T9 r6 W8 C% a% j9 [( ^
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
( C$ [1 }4 q( ?, W8 h either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.+ }4 |$ t8 s1 \. R, |& W3 v
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce6 g. j5 q, H9 _0 }+ f7 ]5 x+ }
the danger of overloading the A/D converter with short signal peaks (if, F; b, F; j# G2 O8 V
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
0 G% ?! z0 H. ?* @# d allowing for approx. 6 dB reserve before hard clipping occurs0 K9 {+ A8 { K
5 q/ |7 ]4 ]& b- v8 [
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