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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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1 C" G8 P/ Y2 l英文电子说明书
1 j8 _' s/ H+ {9 K7 P[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
* O9 p. _) P" }3 q default settings. The subsequent settings remain stored in a Flash EPROM; Q' N) }% ]8 W& Y/ ^
after switching the unit off (unit contains no battery).
, E0 Z/ }: J8 E+ q; N b) T[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
3 ?1 M7 X5 g& B: P h0 b5 z between microphone and line sensitivity setting ranges.+ r$ z' d; S1 m7 R. @6 P
Mic: Range –40...+20 dBu Q- M. ~ P3 Q7 p9 L
Line: Range +14 dBu, +24 dBu9 D# s$ a; H: i5 t% C3 v
[3] Fine Gain Potentiometer for fine input sensitivity setting.- C- V5 i- I1 V6 |
Range of additional gain: 0...+15 dB.
; ]: O" p, B3 Q$ E' B& K Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents- |' B' m w4 B1 y) E
the dBu value of an analog input signal which causes a full-scale output of; {! g# Z" O! M# ~( P; A( I4 G
the A/D converter.4 M0 x9 L9 v5 k/ L
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;5 g/ |* c$ h; h! E$ z3 b
the peak level is therefore +16 dBu. The “Input dBu FS” rotary" N* B. K3 V g% U: _4 f
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
- b# |8 C6 V7 I @ y/ s1 A2 k8 v Gain” potentiometer [3] increases the gain by 8 dB.* ~: m, l' ~$ c3 i' n9 X4 B
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.' D9 W7 e* |: S/ `, C
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
2 y1 j$ e" N$ W0 r! | have more body; percussive instruments are less aggressive.
# h4 A+ a( @6 V# b: d1 H, Y) u% } The group delay behaviour due to AC coupling of the stages is different in
1 x! J G q0 N3 V5 S. Z tube amplifiers.
C* s$ t0 }/ O The “Bass Warmth” control allows to select the frequency range9 K7 D6 ^+ s6 S
(10...200 Hz) within which the effect is active.; r* P% J9 V. `# w. @
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.; T/ }7 s1 I# C- K" I5 A
Valve amps have a characteristic response, mid-frequency harmonic content2 g9 U' X! W, i4 q \
is emphasized.) }0 L" ?0 F: C3 O% f
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.* Y" Q0 Y% ~& ]9 @' [
The harmonics spectrum of a delicately overloaded valve amplifier is completely- d5 C" Z2 E; e- M) z5 r+ Q C
different from an overloaded transistor stage.8 w4 @4 C/ b9 \2 i8 a
The “Gain” control adjusts a gentle overload while the odd-harmonics content8 l& d; @ G! V$ l
can be adjusted with the “Clip” control.
: _, c! ]% S0 Y: Q2 H. g[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...241 l5 [3 t$ Y( E" E
dBu FS.
. f4 y/ f/ ?- y# x. x+ L9 I[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the' I2 [4 |: X8 R \/ {7 `+ X, L' v8 s
desired channel.5 l* O& u ^1 s& }+ H
The “VALVE” LED is on when the Valve Dignifier stage is active.
' c7 u- l# _4 s0 b[9] INSERT INSERT function.% e9 J0 [. T6 s- e: g0 s0 Z
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
4 |4 [8 z4 ?- y' G the valve stage (display: “INS”); the Insert Return is directly fed to the Line# f& }. d7 H2 i Q: U; i+ E
and AES/EBU outputs.2 g0 P, b7 V# J* ~
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
2 H2 P/ k* t% Z2 |$ J8 K! F the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
& L- w! a: F2 E* g* @ A6 t0 E the valve dignifier stage to the Line and AES/EBU outputs.
! Q# G u4 S8 d5 G( Q% b4 N* A Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; y, z9 ?. X4 t# g
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
6 R: S- F% p& k receives this signal; display: none).
* {% F2 s" g* U' X$ S6 ^* N! ] Insert Send and Insert Return are electronically balanced and equipped with+ r9 \+ @, V$ P( ^' Q2 p x
XLR connectors.
5 c2 o7 H% q5 ~; c7 m* U6 ]% ?[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
9 T' j" M6 o3 R5 u4 v ADAT digital interfaces. Each input channel can be switched to one of the
1 i& B6 A5 B/ }- h channels 1...8 of the multichannel interface. If desired, also a mono mix is+ Z5 Q x( {9 I+ q; v3 v
possible by selecting the same output channel for both input channels.+ B8 |% J/ n2 b, ?& k
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
; u" K2 R9 S, V. l) f, p: K' k8 X channel.
- s, e1 j/ f$ Z: b4 d+ n; m Can be operated only if the input gain selector is in Mic position. The
+ \& c, _7 B* y( i- e) R0 z+ O( X setting remains stored when switching over to a line gain setting.
4 m* W; w) P9 |* k6 z) E5 G[12] Activates the high pass filter on the microphone inputs of the desired channel.
4 K3 z% Q' R: {" S/ i& t Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
7 F2 @( M' P1 a1 {: L6 e Can be operated only if the input gain selector is in Mic position. The N1 a4 H4 Q0 @! e# K" a0 M
setting remains stored when switching over to a line gain setting.2 _8 C8 @& }3 @( U
[13] Ø Toggle key to activate the phase reverse switch of the desired channel." N" p; D% i9 V4 O. A; t
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
. A0 U$ O) {0 i7 O& y; s0 A “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
) K4 {: r( T+ q6 d3 `- t Noise Shaping (display: “16NS”) can be selected.* Y1 y o- R; O; d
[15] SYNC Selects the synchronization source for the unit. Possible selections are:0 n+ @9 ?- {9 H6 y& t: B! k/ K: W
INT 48 Internal quartz reference, 48 kHz
9 \1 [5 d3 r! z. s INT 44 Internal quartz reference, 44.1 kHz
# m' N( s# U: O1 H* B2 \$ z) Y WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
; t% v7 d- A" o% d" {. } AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)- R0 ]2 T3 F, X+ c
AUTO Selects sources automatically in the sequence AES-WCLK-INT! S0 e n4 {. j0 ~& B+ G% T+ f4 t2 r8 }: t
VAR Indication only, active if the external source frequency deviates from 48 or4 c2 }2 e( W4 Z' W. Z* n7 Q* q
44.1 kHz for more than approx. ±3 %.( |4 \) t) ^: ]. C
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
* d0 A! n# {) k% Q either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
% U% p1 k0 F' ]' y6 _ d[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
) j! p6 |4 u$ q9 H: q4 ` the danger of overloading the A/D converter with short signal peaks (if
3 _' [1 I9 J0 o0 Y. V active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
. s3 u R' y$ {! W0 [ allowing for approx. 6 dB reserve before hard clipping occurs
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