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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
; W1 a* b% f& p; d[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
: s, y8 w" q* J# d' _. z; W default settings. The subsequent settings remain stored in a Flash EPROM
6 ^) J1 A% J+ B; i( p6 B" F after switching the unit off (unit contains no battery).- j. _' k! \- A4 |2 }
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position2 x6 H- d& u c# |. k+ j3 ~) W8 I
between microphone and line sensitivity setting ranges.& k7 `) Q: w' I: M$ J' v3 q# H3 S
Mic: Range –40...+20 dBu
' m% T. H9 M7 t8 S% _ Line: Range +14 dBu, +24 dBu; i4 F* K+ d8 t6 M
[3] Fine Gain Potentiometer for fine input sensitivity setting.
& z% K5 h; T9 a' [% g8 n5 k Range of additional gain: 0...+15 dB.+ C! S B0 |9 v8 ` y9 i8 W" N' N
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents! L0 \& w8 |/ P! a& |. L
the dBu value of an analog input signal which causes a full-scale output of2 @$ ~6 B. p: ]% _
the A/D converter.# h4 A# ]0 o) ?+ l3 b
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
5 u) B# U/ l) ]9 N the peak level is therefore +16 dBu. The “Input dBu FS” rotary
: l4 k) j9 T3 j w9 O switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine8 x( J- V2 X7 w. Y, h
Gain” potentiometer [3] increases the gain by 8 dB.: L' x6 ?' O3 W) [7 x2 Y
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
+ k" \% G+ t( A* }[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals C( E/ p4 V7 Y1 M1 S
have more body; percussive instruments are less aggressive.6 M i% w) U! f% t! e$ [; E0 x
The group delay behaviour due to AC coupling of the stages is different in5 \, g8 X1 a3 {% ^
tube amplifiers.
2 c, p* I9 [ R6 s: T( ? The “Bass Warmth” control allows to select the frequency range7 u# s: }; u6 A6 Z, |: d F1 N8 b8 G
(10...200 Hz) within which the effect is active.
, l: ~8 H! c" q. a$ Z$ \5 k[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.$ z. _2 a' H. `( f! }' i
Valve amps have a characteristic response, mid-frequency harmonic content' i& ^' W+ V( M5 Z+ m6 M
is emphasized.
" E; Y S. U! u/ V, y[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.4 S( Z6 D1 q1 y. g$ `/ q
The harmonics spectrum of a delicately overloaded valve amplifier is completely
1 G! M! ~, @& A# X different from an overloaded transistor stage.0 z# C# p. f$ Y+ i) B7 K
The “Gain” control adjusts a gentle overload while the odd-harmonics content
( H" a" g7 \' k7 j5 T4 ~% K3 m can be adjusted with the “Clip” control.
' n6 s y9 R4 C6 c* T[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24+ [7 b) l i# f3 z$ z# D7 K' {2 |
dBu FS.3 x+ K4 l) l! D& |$ M6 W
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the6 F& k, ^) Q A7 O- Z' V- d0 K
desired channel.: G" A& \& @ O9 C
The “VALVE” LED is on when the Valve Dignifier stage is active.
3 w: }1 \& O# }" ~[9] INSERT INSERT function.
0 y. E: a7 p7 n! g& Z2 Y* m. N First key pressure: INSERT POST VALVE, the Insert Send is tapped after, W3 A9 s8 Y* X- M+ N4 l
the valve stage (display: “INS”); the Insert Return is directly fed to the Line1 A4 v0 m# K) K. Z) q
and AES/EBU outputs.
4 Y+ H0 y& r2 E* p Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
3 c* V* J5 ?3 K' u! r) B+ k6 ?3 k' G! j the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
1 \- ^. ?% w9 ~8 K* ^ the valve dignifier stage to the Line and AES/EBU outputs. A8 p& P7 h; b' D' e! C
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier. V1 l0 H1 G! ^
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output' ^; n: H1 W# @! E0 [
receives this signal; display: none).
4 W% j, {' ~9 H6 W2 |/ y Insert Send and Insert Return are electronically balanced and equipped with
$ e0 w9 {+ w: I" m% J XLR connectors.0 x) u9 z- Q) z, I6 Q$ ?0 J8 i
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
3 Z1 A% u) J% ]" F ADAT digital interfaces. Each input channel can be switched to one of the' w4 W1 a4 p/ k) J: T
channels 1...8 of the multichannel interface. If desired, also a mono mix is2 o5 A" |6 R. H% G6 I
possible by selecting the same output channel for both input channels.
9 D! M$ U# y9 k- Z[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone. e+ H9 Z; c. O. \. X) H
channel.
, I8 k; Z% B$ d5 A, |' D' o Can be operated only if the input gain selector is in Mic position. The
- y) g* i! j& ^: V. M) v+ m% K( ^ setting remains stored when switching over to a line gain setting.
" B5 w! W: c& H- C[12] Activates the high pass filter on the microphone inputs of the desired channel.
! N" H) R6 n0 Z Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
3 M* G$ t+ h0 P6 Y, z, M9 F- a Can be operated only if the input gain selector is in Mic position. The
7 K0 Z5 y8 S1 y setting remains stored when switching over to a line gain setting.+ n0 o4 q6 Q8 [) R- S7 X
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.' b; O2 w: N! H T2 U h
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; {$ T! F. U z* X2 Z& i
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
% v) G1 Q$ A) f/ j( y2 H o8 f Noise Shaping (display: “16NS”) can be selected.
2 z9 S. c8 q. l, R) N; F[15] SYNC Selects the synchronization source for the unit. Possible selections are:
% r$ g' [- w9 ~ INT 48 Internal quartz reference, 48 kHz7 n5 D+ o, Q7 k* I
INT 44 Internal quartz reference, 44.1 kHz
{: M6 U( R0 q3 i( e WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
& h2 \+ A* ^. g8 }7 T. ? AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
) N; ^& w- G: G B1 D/ Q AUTO Selects sources automatically in the sequence AES-WCLK-INT
$ f3 k! \6 \2 f$ j& S+ K7 u, H* E VAR Indication only, active if the external source frequency deviates from 48 or* d% n' T! b$ I" c+ v( c
44.1 kHz for more than approx. ±3 %.7 U- `: t# N% @+ U& @3 _
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –5 N) l$ z* h+ g" e" ?3 |- Q6 m
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s." M% L& D: u7 V3 I+ _& E, C" U7 m$ p
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce: H/ Y( D; H# C. I2 S
the danger of overloading the A/D converter with short signal peaks (if
* l4 `, F9 Y( d. \5 |( k1 Z4 V) g active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,; W; |: t; Y6 \4 r5 S( E4 F* ?
allowing for approx. 6 dB reserve before hard clipping occurs( S; c3 n3 G+ C+ Q) l* s& Q
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