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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
9 n/ |8 N) Z/ a+ b2 M[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
& }+ C% Y7 V( h) |' z0 O default settings. The subsequent settings remain stored in a Flash EPROM5 @% E5 U* X" L8 c& M
after switching the unit off (unit contains no battery).
" Y1 A) }7 o1 i/ b[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position; U @* c4 L- Y, C/ p" W+ q* V
between microphone and line sensitivity setting ranges.
# _" e+ m6 y5 R# K9 B2 K Mic: Range –40...+20 dBu
! \) y" `7 Z# h9 l9 j Line: Range +14 dBu, +24 dBu& f" h2 Y) M0 S/ f* o
[3] Fine Gain Potentiometer for fine input sensitivity setting.
0 w; d1 H+ i% l4 L% X Range of additional gain: 0...+15 dB.
1 a8 s/ [1 X" u, s" z% J. ] Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
0 `0 L5 V H6 U, T1 n+ m, ^ the dBu value of an analog input signal which causes a full-scale output of; a! ]/ n9 q( O: c( B1 f1 u) [
the A/D converter.
5 r9 y! v g. B0 i Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;* X$ ?' L/ Y7 V
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
' Z1 N9 s+ [; H: [+ k; X" q: _ switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
- f* s' e n# h! f% F, {; }9 A Gain” potentiometer [3] increases the gain by 8 dB./ Z. ?, _8 E V+ q6 K8 ~9 H
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active. G9 r S( d" x7 J3 c8 E
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
% U5 d, e) k7 L1 T8 |# g7 \3 e' B have more body; percussive instruments are less aggressive.6 {8 \3 p8 O* z' [1 g
The group delay behaviour due to AC coupling of the stages is different in$ a! }! z) C7 {
tube amplifiers.
Y. A8 \. O' h j5 f( F The “Bass Warmth” control allows to select the frequency range2 n0 Z5 Q' B2 j8 [! ]2 Z
(10...200 Hz) within which the effect is active.6 i1 A# F% ]' P3 B
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
8 q; R. ?# s2 W8 h5 A Valve amps have a characteristic response, mid-frequency harmonic content
- h" \, N! |8 b% D is emphasized.
% P }0 }/ M8 M# v A5 r4 ? Z, b, b[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.' V3 B( `; M) _
The harmonics spectrum of a delicately overloaded valve amplifier is completely9 W9 f3 ~5 W- F
different from an overloaded transistor stage.4 g: Y7 w: m- D- r+ v! ?& `
The “Gain” control adjusts a gentle overload while the odd-harmonics content Y5 d2 X1 o5 [) D- `+ P
can be adjusted with the “Clip” control.) f- d+ p+ k) l* @
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
; \" _0 W4 x5 v9 x8 S- X9 n dBu FS. y1 u! [+ s w8 p6 W$ m) e
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
; x5 I! M+ S! C) O desired channel.. N+ v& N- x+ x3 r0 `& h9 [# {: l
The “VALVE” LED is on when the Valve Dignifier stage is active.
& S; ]; i& F/ x; F) Y[9] INSERT INSERT function.3 X$ `5 b" |" P6 {
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
8 j4 ]) H5 C. ~& k/ ` the valve stage (display: “INS”); the Insert Return is directly fed to the Line
( Q" ^1 p: ?, |! ~ P and AES/EBU outputs.
' T) f/ S9 Y8 Y$ [) t3 C. ^3 D Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
K3 j1 e8 J7 ?3 g' p, D0 l the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
& W- a' y" t3 T ?2 q0 t the valve dignifier stage to the Line and AES/EBU outputs.
$ W9 p2 J, T- S! H, E+ R: x/ p Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
" A- p* P( f/ e, |: b/ C9 W9 p stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
7 }6 o0 D0 ]( B D7 [7 a receives this signal; display: none).. J) {* v0 ?; s" q! s6 E
Insert Send and Insert Return are electronically balanced and equipped with
8 o' @( y% j5 M$ J- g( a XLR connectors.% g+ U n ^, _! k
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or9 u: H3 ]" ?7 e$ R; q9 A1 u
ADAT digital interfaces. Each input channel can be switched to one of the
d9 Q; l3 x6 B! F0 I2 B8 a7 v channels 1...8 of the multichannel interface. If desired, also a mono mix is
l8 u" I* U+ N5 Y2 D/ V( R possible by selecting the same output channel for both input channels.
/ R' d8 l+ ~/ F3 w8 r[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone" E! U* F9 ]' x1 `6 {# S
channel.: `7 Z# [, c) I: g( ~
Can be operated only if the input gain selector is in Mic position. The2 c0 W+ ~' t. \4 ~1 Z6 v
setting remains stored when switching over to a line gain setting.8 Y# T1 F% m! n
[12] Activates the high pass filter on the microphone inputs of the desired channel.
, z- ]9 d* d; V# s* d2 ?+ Y1 F Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
2 V$ l% U; A! M! S5 D- G* F Can be operated only if the input gain selector is in Mic position. The
, h% F: c" P# _8 X setting remains stored when switching over to a line gain setting.9 i, ~6 [3 q/ C/ a9 g: `1 N
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
, I8 r1 Q2 J/ d5 E: r[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:" H2 L4 N2 i& @
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
% c0 \2 P$ C* t9 h/ j Noise Shaping (display: “16NS”) can be selected.- _& L3 m/ U& `9 z
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
5 T0 w) [/ [6 n8 M' }% @ INT 48 Internal quartz reference, 48 kHz
. R5 _7 G/ i; N. T INT 44 Internal quartz reference, 44.1 kHz5 _. _! ^ Y4 d9 X" j' Y
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)7 P2 j) @( S1 M# y
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)) ?8 g4 I: i C: T
AUTO Selects sources automatically in the sequence AES-WCLK-INT
9 Z; q( d( o g1 P' d; U+ r VAR Indication only, active if the external source frequency deviates from 48 or
n& u; |( H$ I/ g 44.1 kHz for more than approx. ±3 %./ ]( |- n i6 i" J' J/ Q
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
: p( T! h# z R+ s2 F) ~ either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
3 X4 Q! z9 s0 i9 T, i[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
k$ [3 I3 p( q1 j$ L the danger of overloading the A/D converter with short signal peaks (if4 v. U: j( n# P# q
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale," l& l$ [& v! C) S# k4 U
allowing for approx. 6 dB reserve before hard clipping occurs
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