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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 4 L5 B, K, H; P1 `5 }' n) z% a2 K+ j
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英文电子说明书; y) h* M% K) V8 _2 z
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory; L2 \2 {) j& ]! c8 t
default settings. The subsequent settings remain stored in a Flash EPROM
/ X Y) G, w( E! N3 Z7 M* t" K9 T after switching the unit off (unit contains no battery).
/ s9 Q6 c' Y* V# P/ y[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position% }" A- Y, Y1 K0 ~3 @% L: M
between microphone and line sensitivity setting ranges.
' E, E1 M8 e ^4 o+ F; O6 } Mic: Range –40...+20 dBu( V: Z' h6 B+ c9 h
Line: Range +14 dBu, +24 dBu
4 s! u5 {; a @, ]6 Y J[3] Fine Gain Potentiometer for fine input sensitivity setting.
' s% P0 p$ Y& H: I Range of additional gain: 0...+15 dB.
9 {# l7 n4 n+ l: x+ H Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
6 s4 w3 w% L* I. Q$ b the dBu value of an analog input signal which causes a full-scale output of
9 o0 W' i! L& m" y5 W3 q7 @& ~9 K the A/D converter.+ _1 y2 b# d; j X* ? T
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
. M/ V3 d6 G- j; W7 W4 T+ {" @ the peak level is therefore +16 dBu. The “Input dBu FS” rotary
2 I2 L% K$ W% J$ v7 Y* J5 e e1 q- z switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
) J) ?* C0 p. N( C4 L Gain” potentiometer [3] increases the gain by 8 dB.! r0 a& K2 _1 \, p' j% c$ X3 a" z& {$ b
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.( J) ~: Q( C0 E7 l7 g, }
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals; \) C3 y4 t& e" U4 M+ {
have more body; percussive instruments are less aggressive.8 N$ U- m8 p! ]9 {3 ~
The group delay behaviour due to AC coupling of the stages is different in' |$ S6 O! i% m' W
tube amplifiers.
+ r: \" d# L- U' s- g- {( w4 M The “Bass Warmth” control allows to select the frequency range9 }5 O8 Z3 f7 D1 H
(10...200 Hz) within which the effect is active.9 ]$ D! R1 R4 ?. M* i
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
7 S( M: o* X7 ?/ u$ J0 e+ Q, c Valve amps have a characteristic response, mid-frequency harmonic content- i* N$ Z- n" o0 v9 V
is emphasized.# B" N, Y% N0 E/ v( k
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.) R0 a8 [6 V' j. u
The harmonics spectrum of a delicately overloaded valve amplifier is completely
! m* P5 O+ G, w7 [& m) W( q8 p0 m different from an overloaded transistor stage.
$ X) @4 W( }! ]. a# q The “Gain” control adjusts a gentle overload while the odd-harmonics content
) h7 e/ e) {; T% h' c can be adjusted with the “Clip” control.. @2 ^) `; H! s, p" O! {8 _
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
2 {6 v1 S0 r4 u B6 {" W dBu FS.: R1 O0 R4 H' C+ r, v7 r5 w% n7 y
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the" X' @! E9 p) ?% v8 z
desired channel.& |6 H& w7 j( c8 L
The “VALVE” LED is on when the Valve Dignifier stage is active.
2 `; x! w9 a( M. J7 B[9] INSERT INSERT function.9 V1 ]; ?$ ]5 H7 _3 l9 x; o+ F
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
" C, y- ?) v. k the valve stage (display: “INS”); the Insert Return is directly fed to the Line
$ Q0 C; T) l Z4 E% y M9 n and AES/EBU outputs.
6 j( x% @, b/ Y h) S Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
! E# m z( b. M* [7 E9 A the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
2 n6 J- w1 d {0 M9 [$ J) H! h3 e the valve dignifier stage to the Line and AES/EBU outputs.
4 u9 n! `7 `! G Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
2 O5 J; h; t) L$ H stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
" w4 `' ^+ v) L* z receives this signal; display: none).
2 g; P9 h( o% T: O5 a" a0 j Insert Send and Insert Return are electronically balanced and equipped with
8 @/ m& q, J$ q7 k# l9 ~$ n8 P7 \$ Y8 ~) F XLR connectors.
/ T2 J. I/ @! b( u& r0 @[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
; o7 O* h- i% ?, X5 A) u8 E$ \ ADAT digital interfaces. Each input channel can be switched to one of the
9 ]5 r. `8 T1 V9 R) w$ c channels 1...8 of the multichannel interface. If desired, also a mono mix is' F, |- J; {+ `8 A1 H" W
possible by selecting the same output channel for both input channels.- }0 J. b5 f; N+ [+ g
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone' N& J. r0 N4 \* n. D4 ]4 r
channel.: b; A8 U& v0 @8 [! \4 v: X
Can be operated only if the input gain selector is in Mic position. The$ E$ Y- R" r7 Y
setting remains stored when switching over to a line gain setting.* p2 }, M7 p6 e" F2 O. `; `
[12] Activates the high pass filter on the microphone inputs of the desired channel.! |. q8 g+ |) }
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.5 i' U8 }1 O' y3 ^
Can be operated only if the input gain selector is in Mic position. The
; l5 H9 z- L! b& F, h setting remains stored when switching over to a line gain setting." e( P# I4 f2 f* s
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
( P! ?- Z9 U; q5 t8 r[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:$ S. P( c: H/ \
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with9 V* J7 J* k# n5 m" `/ ^& h
Noise Shaping (display: “16NS”) can be selected.
% w6 z6 Q* \+ I. a4 V[15] SYNC Selects the synchronization source for the unit. Possible selections are:5 f& j& v( x0 i! Q6 O4 w
INT 48 Internal quartz reference, 48 kHz4 u" i# m0 B% i' Q8 p' h
INT 44 Internal quartz reference, 44.1 kHz
4 k' Z( M) F1 s& g# @ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized): V7 X$ i( D6 m6 @
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)9 G+ a2 P: _! W
AUTO Selects sources automatically in the sequence AES-WCLK-INT
) {* i. l- E. a# R% X; ^ VAR Indication only, active if the external source frequency deviates from 48 or3 ?, |! Z# P: }5 ~3 \( D3 M
44.1 kHz for more than approx. ±3 %.
8 F& A$ @0 |9 O: f4 h3 ?3 D[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
& M5 s) v' a! Z; e2 e either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
* q1 y: A6 T" n( `2 t" S( a[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce ?' m9 k+ c( d, H% x' I
the danger of overloading the A/D converter with short signal peaks (if& }) U4 d3 Y! o% ~# }
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
* j( u* I/ M- ^2 a, ^ allowing for approx. 6 dB reserve before hard clipping occurs6 `5 r+ C9 q8 F: h$ y
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