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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 9 ]5 A- ?, P9 R; m. G9 u: q
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英文电子说明书
3 @) G, A! u; m& C) f p9 H0 K' K3 m0 m[1] POWER Switches the unit on or off. The unit is ready to operate with the factory9 ]/ p- L* M8 x' }! M
default settings. The subsequent settings remain stored in a Flash EPROM
% C5 R) ~7 O4 ]5 L% A0 [3 x [1 {2 l after switching the unit off (unit contains no battery).) C6 w2 W2 ~" O: K. y
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position+ [# r0 x8 l0 l; q X, V
between microphone and line sensitivity setting ranges.$ |, T: u5 h! N% V
Mic: Range –40...+20 dBu6 m- g( N' z& y0 L1 x3 z
Line: Range +14 dBu, +24 dBu8 x) t% v' @9 ^. d
[3] Fine Gain Potentiometer for fine input sensitivity setting.
5 J: v/ I5 z' v Range of additional gain: 0...+15 dB.
3 f5 f6 R# A+ d# s( y- y6 c Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
# S5 p" M. t9 o z% C0 I9 `) u the dBu value of an analog input signal which causes a full-scale output of; v" O+ `0 |: F; T
the A/D converter.
7 u" E8 S" t4 B. M$ U Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
/ x% P/ m$ q1 W1 ~8 t the peak level is therefore +16 dBu. The “Input dBu FS” rotary5 l- `/ N5 ~' A' y: `
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
9 [, |4 H, I! s' [# C8 R/ \* b" @ Gain” potentiometer [3] increases the gain by 8 dB.
; |/ h! f5 m9 t& ~9 f% i[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
0 P* n+ q0 c/ {3 U9 e2 R[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals8 ~/ ^- @" J' \9 g
have more body; percussive instruments are less aggressive.
7 @9 v k* v$ G$ h The group delay behaviour due to AC coupling of the stages is different in
9 \0 E9 f3 B2 @; w7 H. U tube amplifiers.+ `+ ^6 s* X3 j4 g- {; f
The “Bass Warmth” control allows to select the frequency range5 \# ^' }0 W( k1 w8 N4 ]
(10...200 Hz) within which the effect is active.
$ R4 e3 Q- j! H9 O4 S( ^[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
& i, y: P! W3 f% l* p1 e Valve amps have a characteristic response, mid-frequency harmonic content8 K3 J. {) q- t0 G2 h" l. R1 B' p/ _
is emphasized.
/ }( ^2 ^5 b. w* ~# Z[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
* [ C" H1 G" l( j: N- N The harmonics spectrum of a delicately overloaded valve amplifier is completely3 i# o a% f& p* f, t) g& b5 Q
different from an overloaded transistor stage.3 K# M3 f# t; P( e* m2 @+ c G- Z
The “Gain” control adjusts a gentle overload while the odd-harmonics content
6 o m. p$ H! r1 Q5 J can be adjusted with the “Clip” control.; d" x" D8 b9 b" O
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
, k+ ?+ s( R! r/ H3 L; k dBu FS.: ]& d+ n, N& D2 o3 n
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
8 o& Z7 ~. ~+ w" ` desired channel.
, C2 ` g# y: p; Y4 j The “VALVE” LED is on when the Valve Dignifier stage is active.2 m4 H9 l: z4 Y6 D8 t8 l3 x# a
[9] INSERT INSERT function. M/ }0 V0 ~5 n6 c6 `! H/ U/ }
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
6 j8 L8 R$ g/ K1 N6 o* y; r the valve stage (display: “INS”); the Insert Return is directly fed to the Line
0 \' d; z% [- B$ I% g2 l and AES/EBU outputs.
- P$ k* g6 E( R- ^% A Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before. N) q+ G4 l+ ?( L' t! M4 C) M) H
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
5 D% m5 c2 W$ t! t the valve dignifier stage to the Line and AES/EBU outputs.
3 y. ~/ T/ d% p& F Third pressure: INSERT OFF, the input signal is fed via the valve dignifier2 }3 k& m; L" l# W
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
~ C" ?' l6 _: o, h+ g receives this signal; display: none).
% e D! q% o" _ H Insert Send and Insert Return are electronically balanced and equipped with
) Q* t5 {" h, u1 t" i7 n3 s+ B XLR connectors.
& o' m; [, S- ~[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or. L) J! H& K% D# t0 l
ADAT digital interfaces. Each input channel can be switched to one of the9 T$ J, _5 \: E# r! c( T
channels 1...8 of the multichannel interface. If desired, also a mono mix is
. }# _) k# o# W+ E( A. {3 ? possible by selecting the same output channel for both input channels.
8 w4 f0 G- H: ]. C( A2 C6 \[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 f* j6 Q! [9 t- d d) {/ V channel.
2 m) u* |( |6 c2 g: ] Can be operated only if the input gain selector is in Mic position. The
) s9 O7 V [- x5 f6 f' x setting remains stored when switching over to a line gain setting.
0 d$ N! ?7 l6 L1 z[12] Activates the high pass filter on the microphone inputs of the desired channel.( t; j& b, V1 i: ], }- e' Q7 O0 T
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
* e& C v8 \# X" W# h# l Can be operated only if the input gain selector is in Mic position. The, D+ c7 {# d `! [; F. L
setting remains stored when switching over to a line gain setting.! L K4 F2 c% c$ ]
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.4 \' x p; v$ x- p' P0 I+ h( {
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:4 M6 ]. q9 |! G3 p1 b% r( X3 ~
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
3 w8 Q; ^2 j6 Z; l Noise Shaping (display: “16NS”) can be selected.
5 c! I9 |5 }' b4 w: W( C[15] SYNC Selects the synchronization source for the unit. Possible selections are:
: p' ?) ]" E, j# z' N' {( v INT 48 Internal quartz reference, 48 kHz
! m8 n4 g) ?% Y( ?1 R8 | INT 44 Internal quartz reference, 44.1 kHz
) N: y8 V5 @- [/ n T8 S WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)1 C6 S2 x2 R9 V, X0 a$ u
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
' i1 {$ ^# j% U: ` AUTO Selects sources automatically in the sequence AES-WCLK-INT
$ g/ n# }% k2 X. f" l VAR Indication only, active if the external source frequency deviates from 48 or( R' W; A9 f$ A' @1 w
44.1 kHz for more than approx. ±3 %.
$ ^( m* c$ _" h! q& a2 R7 a# } W- E[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
- v( g( D: Y3 I8 M; @0 H: g either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.1 ?- ~+ z( h' p# E( @. O5 t
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
7 E# w6 J s% S" m+ g the danger of overloading the A/D converter with short signal peaks (if
+ ?) \/ O' V8 X; C- f+ b# `4 m0 N8 G active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,9 i+ [7 m' X! c1 S% N
allowing for approx. 6 dB reserve before hard clipping occurs# h9 D6 M* K8 j3 z% w
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