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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 7 ^% `8 A" ~- Z1 m4 M* S# Y8 ?' C
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: i/ F! Q% e" L, J" P2 x" H/ ?, T* s3 b' l英文电子说明书
; ?3 T# k' i ~8 y& ?2 e5 ^[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
+ R7 ^0 g! f/ c* t. n default settings. The subsequent settings remain stored in a Flash EPROM
7 e/ ~8 `/ R6 a$ {$ g. g' C$ z9 F after switching the unit off (unit contains no battery).6 |) x4 B5 \+ K5 _% N2 W1 q
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
$ E: ~# I |; \7 {; ^, h6 b5 ] between microphone and line sensitivity setting ranges.$ Y3 W# ]% V/ j ~. c% U0 O6 S! B
Mic: Range –40...+20 dBu
+ l8 {) d {( `0 k Line: Range +14 dBu, +24 dBu
/ y% i8 J' ]" b8 e; y% O" E[3] Fine Gain Potentiometer for fine input sensitivity setting.6 n% Z" D! p( U E
Range of additional gain: 0...+15 dB.
6 ^9 V( n. ^: S/ K% M. ` Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
9 a2 v( g: J" t+ y: h& C the dBu value of an analog input signal which causes a full-scale output of" Z/ i3 l( o" B* D2 K$ i% p
the A/D converter.( O9 F ~2 c+ E F& B
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
, g1 Q" ^4 R" e% Q the peak level is therefore +16 dBu. The “Input dBu FS” rotary
& a. R, _; F) F( E6 b6 x$ p( C switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine' H7 N8 ?& @$ g4 L2 E9 ]
Gain” potentiometer [3] increases the gain by 8 dB.
0 k* r, H7 t1 H0 B[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.# [8 [; x3 t" s
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals! j0 ?) j2 D7 Z8 [. _
have more body; percussive instruments are less aggressive." n* a4 w+ E( u$ j
The group delay behaviour due to AC coupling of the stages is different in
. g( j' V4 H2 n tube amplifiers.
" z7 v5 P! |! A" g The “Bass Warmth” control allows to select the frequency range
2 Y& o: w7 B8 N: I/ N# k1 y3 K2 J (10...200 Hz) within which the effect is active.9 H! a. z$ Y) M0 g
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.6 Y( ^" G7 C1 V/ z
Valve amps have a characteristic response, mid-frequency harmonic content8 o( B6 k9 F4 K8 P
is emphasized.4 @- x" Y4 i4 p3 A
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.( u* H2 L8 }) K5 \% z( d% v
The harmonics spectrum of a delicately overloaded valve amplifier is completely
- P5 y6 ?: `( v. a% A different from an overloaded transistor stage./ t9 c( x) H/ G0 q
The “Gain” control adjusts a gentle overload while the odd-harmonics content5 a5 I. y7 I2 g! G T
can be adjusted with the “Clip” control.
: _7 @( W) y1 w- O! c[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
@6 f! Q+ A5 e6 G* F dBu FS.8 K2 @5 N$ f. @2 o
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
2 L, V' j' V d: c0 A desired channel.
. ]! U4 e" @9 n A% P9 I The “VALVE” LED is on when the Valve Dignifier stage is active.# C9 g9 D8 S7 ~, r- h. x
[9] INSERT INSERT function.- i7 L) ?* v. V$ l/ ~
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 Y4 ?. L; @( F9 w) ~, | the valve stage (display: “INS”); the Insert Return is directly fed to the Line
6 M# V' k( Z& O! W9 f and AES/EBU outputs.
' ^5 N; n. w/ t- f- z& [ Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before7 r: k& Z/ R) ~: O( x6 ~) ^
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via5 D6 ~8 K+ ]4 E( W0 T, b, i7 i }
the valve dignifier stage to the Line and AES/EBU outputs.# i d, |5 Y7 t/ l3 y2 H3 U
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier1 k5 G; _ R, L3 g1 B& Y% ^
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
" w2 z# E' O2 J% e7 M$ G receives this signal; display: none).
0 O" B9 A) q1 l* V: ~% Z Insert Send and Insert Return are electronically balanced and equipped with% ~/ F/ X: r7 D
XLR connectors.1 @0 Y A& g( h) g3 D6 n' u; [
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
R; K. @: P* U2 A+ {+ }9 L) r* E1 B& u ADAT digital interfaces. Each input channel can be switched to one of the. z4 f) M( o0 t# B2 b# o- A
channels 1...8 of the multichannel interface. If desired, also a mono mix is
! X$ M: ~+ t% b! \' C# R0 f: y possible by selecting the same output channel for both input channels.: B$ g2 l/ @ z
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone y4 G) z5 F3 ?6 p
channel.8 w( x+ i2 [ r, G9 B0 k
Can be operated only if the input gain selector is in Mic position. The' j8 J# `/ J3 S. ]. W1 j
setting remains stored when switching over to a line gain setting.
( Z; ^2 P1 X* }[12] Activates the high pass filter on the microphone inputs of the desired channel.4 u/ R7 n' h* t* N7 ^3 V0 z
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
) S2 e9 Q5 m6 K Can be operated only if the input gain selector is in Mic position. The
5 P! ?( z( Q% N% { L+ z4 C setting remains stored when switching over to a line gain setting.
6 ?1 {- e- |+ M/ c( d ^[13] Ø Toggle key to activate the phase reverse switch of the desired channel.' _7 V+ ~8 B/ |5 D( u' W4 C% ^
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
; p' U1 I! l4 w& g “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with# F" v3 L2 ~' D* j- x( @/ s: G
Noise Shaping (display: “16NS”) can be selected.3 v$ j% `* {# w- V g8 t
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
/ v( W9 P; t8 S. L5 f INT 48 Internal quartz reference, 48 kHz$ t( |3 q7 m0 p) Y1 Q: B; I
INT 44 Internal quartz reference, 44.1 kHz# U" i, a, c/ O7 o, r* C
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized): [+ Y# v8 z" ~# |/ z9 \
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
" g9 _; r2 L$ q% ~( ^ AUTO Selects sources automatically in the sequence AES-WCLK-INT3 L8 d9 ^; p5 W0 J0 Y
VAR Indication only, active if the external source frequency deviates from 48 or
7 k ?) X1 K* u5 e/ I 44.1 kHz for more than approx. ±3 %.0 N* a' l* V" ?* \
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
2 Q& e3 y4 n! [6 u either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
1 R- Z% @) I. x6 z P[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce: C- d) z3 \% V) b" v. g/ x3 C4 G
the danger of overloading the A/D converter with short signal peaks (if# R. O3 O. s5 x% l( G* d) z1 i
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,! _) ]" g) F7 k/ t1 ^
allowing for approx. 6 dB reserve before hard clipping occurs1 P' T; z$ ]: |9 i/ z
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