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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
: }* a: z/ ^3 ^2 _[1] POWER Switches the unit on or off. The unit is ready to operate with the factory; Z! f: s+ u/ a d0 p' `, _8 e: s
default settings. The subsequent settings remain stored in a Flash EPROM
2 u; A" o$ q, U2 k1 r7 R' N after switching the unit off (unit contains no battery)., y" j: I3 _+ ?6 t: v- M$ N
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position5 @: x, M. Q! X2 H" V5 [
between microphone and line sensitivity setting ranges.
9 s) m. @& w7 _! D$ W! }2 e Mic: Range –40...+20 dBu- g( M2 s" D! g. x: R& B: U1 M% T
Line: Range +14 dBu, +24 dBu
3 j/ ]5 \, d G0 h7 Y7 g$ s$ W[3] Fine Gain Potentiometer for fine input sensitivity setting.
( Q8 G* [. [4 C2 w- ? Range of additional gain: 0...+15 dB.
& c3 s, i, {0 t1 ?( f) B Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents2 |+ c; `$ J% R% ?5 E% c
the dBu value of an analog input signal which causes a full-scale output of
% A% z1 S }6 R7 C& x the A/D converter.
- B7 o8 l8 G5 S. Y7 v: r1 w Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;" y; q H7 O9 u2 \% d
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
2 t' V. T0 j2 J4 D& l/ _$ m0 v switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine3 a S7 }+ f$ o! ~5 ^
Gain” potentiometer [3] increases the gain by 8 dB.
3 ^- p' ]& m; @2 A, l h[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
# k, t: L4 o+ T' q; ~# ^; Q[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals) n, a& R- S4 Q# i
have more body; percussive instruments are less aggressive.
) {- @9 Q( B6 Q8 w The group delay behaviour due to AC coupling of the stages is different in
1 ]$ y4 Z% d- H, t! \ tube amplifiers.
/ w% Y1 j0 q$ G' l The “Bass Warmth” control allows to select the frequency range) ]- |# V" d" k+ X9 E
(10...200 Hz) within which the effect is active.1 v1 L" G/ c% ?
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.: s: s" @% P- ]1 e
Valve amps have a characteristic response, mid-frequency harmonic content# R1 c( e' R. w/ O, N$ L
is emphasized.
6 a6 z4 J) w7 }/ T5 q% t: L[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
( ? g- Q2 ]) P The harmonics spectrum of a delicately overloaded valve amplifier is completely2 t! Z Z$ F" v4 u2 U8 O! [' M+ A
different from an overloaded transistor stage.. D* C+ k: J* q5 r" |1 _: F
The “Gain” control adjusts a gentle overload while the odd-harmonics content
, W# \3 I8 \6 q( f. H2 g can be adjusted with the “Clip” control.
7 [! a/ [; r0 C/ q) U l[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
! I8 a3 V+ n9 E+ c" y dBu FS.; P) y) Z' I: f2 o3 y
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
% |4 F- K4 r0 r: w4 H desired channel.
3 Z5 V2 F3 W# ~+ U$ y. [0 S: i The “VALVE” LED is on when the Valve Dignifier stage is active.9 \9 a2 [; [3 o2 O- K
[9] INSERT INSERT function.
- G) X2 ^1 D* p- U- S. _ First key pressure: INSERT POST VALVE, the Insert Send is tapped after/ s/ ~' \ d+ s4 z8 E
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
3 U- l |/ Q# l, M& R and AES/EBU outputs.. P% s2 X1 X5 a3 |6 b
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
0 y6 M2 N' D2 m% n8 `* ~2 P6 \2 E the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
3 ~$ y/ u, S5 i3 q2 c the valve dignifier stage to the Line and AES/EBU outputs.
# n6 Q: ?4 \4 J4 S Third pressure: INSERT OFF, the input signal is fed via the valve dignifier N" {# @$ o- W
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output6 w4 v: l- f, K4 ?2 g* a
receives this signal; display: none).! K ?6 [/ q2 p* {
Insert Send and Insert Return are electronically balanced and equipped with4 V, J& `. s1 D
XLR connectors.' P6 Y0 _2 {' G
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
1 d- ` e/ ]# K( X% j; I+ } ADAT digital interfaces. Each input channel can be switched to one of the
9 _" o9 l$ A7 D8 P g6 s7 K channels 1...8 of the multichannel interface. If desired, also a mono mix is& N$ M c; m; Q' z
possible by selecting the same output channel for both input channels., `) f0 |; }0 B4 L. c- e" e+ w
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; V/ @. I3 ]! N+ `/ X9 L channel.7 [0 m' \4 u r
Can be operated only if the input gain selector is in Mic position. The
6 H+ B, g% H9 i+ t7 S W setting remains stored when switching over to a line gain setting.# R3 K" k8 w. D$ l. q% ^3 y5 Y
[12] Activates the high pass filter on the microphone inputs of the desired channel.
/ f- C2 l* i# N% z Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.& H4 W1 x- K: p* k
Can be operated only if the input gain selector is in Mic position. The" Z: Q6 I D* v
setting remains stored when switching over to a line gain setting.& s! e% |! z* s6 e; h( G6 D
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.# f3 E p8 {4 o7 h) Y h+ g+ S' q
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:; e5 v) K' P) X* S
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
$ [! e& M1 m4 {. h6 ] Noise Shaping (display: “16NS”) can be selected.% C! F* W, c* G8 ^/ v5 n, X
[15] SYNC Selects the synchronization source for the unit. Possible selections are:- q. a2 B5 Z. c0 p4 q* M
INT 48 Internal quartz reference, 48 kHz1 P7 o) Z$ X# I5 @
INT 44 Internal quartz reference, 44.1 kHz5 u, V0 A3 ~( I0 f) G
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
! T: {: \* c4 a6 ~" p AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized) B$ ]$ @3 Y& F% O; v
AUTO Selects sources automatically in the sequence AES-WCLK-INT
0 o% b$ r O8 Z1 e VAR Indication only, active if the external source frequency deviates from 48 or
4 u; C" j) y5 D# p) @ 44.1 kHz for more than approx. ±3 %.) c/ r6 ~% G9 w- v3 J$ v6 l
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
2 Q3 q( F# B+ C either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
& C3 Y, q1 O7 c+ u2 B[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
% x# s& x( _( }4 v4 v the danger of overloading the A/D converter with short signal peaks (if9 o1 g0 r: k) P1 \" I. b+ B
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
: O' O8 S9 I& `% s7 K allowing for approx. 6 dB reserve before hard clipping occurs
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