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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
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英文电子说明书
* T9 b- S8 \1 X. n; L; J9 H[1] POWER Switches the unit on or off. The unit is ready to operate with the factory/ H2 C" v! p1 W! V& V3 l
default settings. The subsequent settings remain stored in a Flash EPROM' F/ q% P7 P$ ~( {2 a5 I/ x
after switching the unit off (unit contains no battery).
: o T& C2 N& \$ Q7 Q[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
2 ?6 C7 H# q" a1 X3 k between microphone and line sensitivity setting ranges.
" g: l' B+ R. ^0 D- H Mic: Range –40...+20 dBu3 }9 c' h1 u+ A7 S9 U
Line: Range +14 dBu, +24 dBu( C0 p- [ L- R, \ ^$ I6 Y" k" e* o
[3] Fine Gain Potentiometer for fine input sensitivity setting.; L: |5 U1 b) v6 S8 o
Range of additional gain: 0...+15 dB.
% [/ A$ }7 O! k& H8 N Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents! B( j* ?/ K) R* t7 D
the dBu value of an analog input signal which causes a full-scale output of; e" n. J) q! B. }, n. q7 c3 F/ q( R. R
the A/D converter.6 R0 |) ?0 a. J, p+ ?% t; w2 F
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;2 |. L7 c1 B" G( X
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
7 K( V# X- t5 S# B0 I switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine0 ]3 O: z9 p1 w0 j
Gain” potentiometer [3] increases the gain by 8 dB.
) e( f' I3 w. N' ~- v7 j6 G( W! |/ x[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
! R \ R2 X9 C( M$ ^; r[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
. h7 T8 [0 V% Z3 W2 S. z have more body; percussive instruments are less aggressive.2 P3 N; \0 B) }+ q+ Z
The group delay behaviour due to AC coupling of the stages is different in
# U% i& z$ k J) C- v9 a tube amplifiers.2 K5 |4 ]4 \! R) u/ s
The “Bass Warmth” control allows to select the frequency range# h5 Q2 M M. A" X
(10...200 Hz) within which the effect is active.. w* Z0 Z; `: l7 u/ N
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.0 q7 N, s+ \% w/ U- Y. e5 M
Valve amps have a characteristic response, mid-frequency harmonic content* j! `+ u/ S0 V1 L* {) I" P: A, W
is emphasized.
) C/ m6 c9 ^0 n$ d[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
8 R5 E0 n8 Q9 | F ^0 k8 r The harmonics spectrum of a delicately overloaded valve amplifier is completely
) K1 f# ~- h q4 V* {/ a. q different from an overloaded transistor stage.
" s6 e) Y, n& f4 g5 V The “Gain” control adjusts a gentle overload while the odd-harmonics content
2 D, Y7 s1 F c) V: h9 x can be adjusted with the “Clip” control.8 L" m% H& T; O# L) r
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24( \% s6 W: h. B5 S" v
dBu FS.7 O: R1 b _* @5 i
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the F0 k" \ y7 k) `
desired channel.. a5 t8 h$ `2 V) a
The “VALVE” LED is on when the Valve Dignifier stage is active.1 L: w5 D/ _ p' R' G: V' G
[9] INSERT INSERT function.
# `7 ]3 V6 D# K- \ First key pressure: INSERT POST VALVE, the Insert Send is tapped after
7 v% t, B. z/ D! e/ @ the valve stage (display: “INS”); the Insert Return is directly fed to the Line" p% T! }; y& i
and AES/EBU outputs.; ]; n; i6 e4 M
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
' I& [* Z5 g% f, N2 _" w, L. k the valve stage (display: “INS” and “PRE”); the Insert Return is fed via; U3 u0 _; F; j2 Z; x9 j
the valve dignifier stage to the Line and AES/EBU outputs.3 p, J8 L; e. H% ~# ]7 ?
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
' X1 }! o9 o& U+ L- b% L' V stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
' I9 P5 P& U* Q6 B- |8 A/ B% @; S receives this signal; display: none).
; A9 ~ Y1 q5 l5 R" e/ T3 U8 [ {3 @ Insert Send and Insert Return are electronically balanced and equipped with
) m( p d) f* b( g XLR connectors.
* s7 E. T1 l( y! d N[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or3 t! A6 w, E8 [, @2 Q% Y |
ADAT digital interfaces. Each input channel can be switched to one of the
6 Q; O6 H; r4 O: }2 t& z channels 1...8 of the multichannel interface. If desired, also a mono mix is
0 e( U0 @* r5 {" s/ }' V possible by selecting the same output channel for both input channels.
) d/ E* x& f2 D& o) U+ @! X[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
$ L* |+ F f/ t( ^' ~ channel.
0 i5 X+ p6 T4 M( K9 l Can be operated only if the input gain selector is in Mic position. The
; L; [& a( \0 m X! m( O setting remains stored when switching over to a line gain setting.
( N$ [* Y" O" d Q; i c3 u7 ~* u[12] Activates the high pass filter on the microphone inputs of the desired channel.
3 `9 v- H9 ]8 ]! ? Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
4 O' d& W8 m% M+ N Can be operated only if the input gain selector is in Mic position. The
0 [; S9 C4 Q9 U( ]# w( F! A7 a) O8 ~ setting remains stored when switching over to a line gain setting.8 |% l3 r1 b1 l+ A* D
[13] Ø Toggle key to activate the phase reverse switch of the desired channel." I9 L$ L8 `. B* i* `4 s5 g
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:3 M* P3 ~7 c- } {4 R" p7 Z
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with" D: p% P3 r. s5 k5 ^1 T1 M
Noise Shaping (display: “16NS”) can be selected.
, g# m7 {( t* l# Q( A3 D1 J9 T+ [[15] SYNC Selects the synchronization source for the unit. Possible selections are:, C) e7 \5 d, p) I/ U( f
INT 48 Internal quartz reference, 48 kHz9 [+ n5 `9 P+ x
INT 44 Internal quartz reference, 44.1 kHz
+ h! a, e: [1 }+ a8 Q+ _ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
9 j+ J$ }5 c$ T% s% [ AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)2 H9 N6 G P: x& l+ o$ m
AUTO Selects sources automatically in the sequence AES-WCLK-INT
+ K# s# J G4 W1 j% f4 [ VAR Indication only, active if the external source frequency deviates from 48 or2 w6 w- n) S. F1 B
44.1 kHz for more than approx. ±3 %.. v, ^- }* Q0 ^6 F+ G, T) P
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –, [% c/ ^4 t/ i; ?. E) t
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s." Z) i1 {8 h4 I8 x
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce' D( F1 E: }% a- H1 A& y1 {
the danger of overloading the A/D converter with short signal peaks (if
5 F" l2 @! x( c0 d% S active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
) W8 T8 @. C! Q( t7 } allowing for approx. 6 dB reserve before hard clipping occurs
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