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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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# A2 T6 \" l! e u英文电子说明书2 m8 ]$ e6 O5 W% O. t( N; b
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory6 A# N9 B0 l# Q2 i" l6 D
default settings. The subsequent settings remain stored in a Flash EPROM& f/ t5 [! y8 l! z$ E# c
after switching the unit off (unit contains no battery).2 f( l* y d9 j2 I+ }( u. f
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position. R |, @, H" D. @5 S& n
between microphone and line sensitivity setting ranges.
+ o8 m: z$ l7 V9 | Mic: Range –40...+20 dBu7 a, b7 I6 w) D. Q
Line: Range +14 dBu, +24 dBu
4 \) e# r6 z6 O. G; d2 P[3] Fine Gain Potentiometer for fine input sensitivity setting.+ ?* x1 Q/ W1 r1 T0 ]
Range of additional gain: 0...+15 dB.
! c" D9 C) ]; u# {( c Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
& Z( u& ?' q. {. h; S4 h: h the dBu value of an analog input signal which causes a full-scale output of
+ Z$ S0 Y- R0 x( ]7 T9 `& i8 k" z the A/D converter.
% s( l7 [4 A9 L& q- ~( G: h Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;& w$ q6 J( k7 B2 M# N! ?
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
8 {2 D5 |9 S& s2 d switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine* L+ V+ {5 Z) Y# k
Gain” potentiometer [3] increases the gain by 8 dB.! y- }0 Z9 K5 Y5 @5 ~& D5 g
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.5 e' \7 x2 X" y7 F6 h
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
' x8 k7 e9 H4 d, u; U$ z) P+ K& m have more body; percussive instruments are less aggressive.
! k" B5 F: e( A) j" W9 `0 ]6 P: y The group delay behaviour due to AC coupling of the stages is different in
' v- T( |3 e; C, y1 S tube amplifiers.
* z' f/ x9 n+ n% k& B6 S C The “Bass Warmth” control allows to select the frequency range
% {( ` U3 a( }4 W' @ (10...200 Hz) within which the effect is active.
/ f: ~: d7 c+ g7 V; m% ^) y[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
) A; i' d+ C# K% y4 G. _ Valve amps have a characteristic response, mid-frequency harmonic content* j" T3 V6 j1 r- d7 v
is emphasized.% X1 p( |4 |$ P0 |6 t& \8 o6 C
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.: M- t$ B; _* b9 K8 D+ J
The harmonics spectrum of a delicately overloaded valve amplifier is completely
" E& e" o; g& w' e& I different from an overloaded transistor stage.' \, p$ W& G3 [
The “Gain” control adjusts a gentle overload while the odd-harmonics content0 s( h% p6 y5 q5 ~9 A2 d- J
can be adjusted with the “Clip” control.+ L& h5 o9 ?' \: D5 [" H
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...248 S: O* M7 \! P C# \ P, [; q! `, |, u
dBu FS.
& {$ M" l8 A$ n; t& [[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the7 F6 c7 f0 V; j
desired channel.
% i+ ^3 ~/ |, v0 P$ Y/ Z0 V$ R The “VALVE” LED is on when the Valve Dignifier stage is active.! `# w( ^- X& N9 b: v
[9] INSERT INSERT function.9 g$ J2 V/ z+ W7 a! f$ A7 J! w) P
First key pressure: INSERT POST VALVE, the Insert Send is tapped after
( x# X0 W8 [$ S8 T. l8 s8 U the valve stage (display: “INS”); the Insert Return is directly fed to the Line
# ^' a; u) ^4 s" _% G and AES/EBU outputs.
, z7 [* W/ i4 a& U Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before& Z) m3 E7 H2 [4 H4 R/ v
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via0 _) A4 O& m0 f2 z: o8 _
the valve dignifier stage to the Line and AES/EBU outputs.
+ H2 R# Z3 X+ U+ x! @1 z' X; C Third pressure: INSERT OFF, the input signal is fed via the valve dignifier
+ R2 A4 `; j8 i# D1 J0 i0 r7 x! ? stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
+ n# h: Z% G* s! J x9 L receives this signal; display: none).
9 `* U M: P/ R1 {9 X$ e Insert Send and Insert Return are electronically balanced and equipped with
8 u1 H, s* ?7 y+ R$ J5 C XLR connectors.
, H' i/ m4 l0 k# J[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
6 J3 s# j9 R+ z g# c ADAT digital interfaces. Each input channel can be switched to one of the. g! ?6 d/ e# y3 G3 Y
channels 1...8 of the multichannel interface. If desired, also a mono mix is) {$ j }" T6 g( | k! S# x# w
possible by selecting the same output channel for both input channels.* |$ C. f6 j4 s; _& \0 N& ~
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone. ~. n( G z& Q- F7 q$ y% F
channel.
% H6 _# v- O% g0 M Can be operated only if the input gain selector is in Mic position. The, n* z5 h/ r+ P1 ]3 O6 n3 R' l# G
setting remains stored when switching over to a line gain setting.) S/ ^- h2 ?0 r% n! m
[12] Activates the high pass filter on the microphone inputs of the desired channel.# ]8 a5 I* j6 K; p
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
, E! `7 F+ z( Q) [$ E% @8 f Can be operated only if the input gain selector is in Mic position. The. w+ o3 `5 N q: J) e8 p! ~0 u
setting remains stored when switching over to a line gain setting.
& b) \1 S; {5 x& S1 T& V[13] Ø Toggle key to activate the phase reverse switch of the desired channel.2 b6 S ?; C" v9 \8 N
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:7 E4 C# D5 w% q/ M
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with
C: ]; L4 p/ y( J+ T0 V Noise Shaping (display: “16NS”) can be selected.
% _+ b* N! \5 ?# q3 R[15] SYNC Selects the synchronization source for the unit. Possible selections are:6 [: O, M: U. h: F7 G3 T+ j8 t
INT 48 Internal quartz reference, 48 kHz3 G9 @! R" A7 T0 C2 [7 _
INT 44 Internal quartz reference, 44.1 kHz. L v# q, K" n' _, E, f
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
3 w0 v$ X, ^& Z: s AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)* R0 d: X5 X5 X' s) W" _$ P
AUTO Selects sources automatically in the sequence AES-WCLK-INT
9 W3 S7 s3 q$ U: v9 `) N3 Y8 ?6 B VAR Indication only, active if the external source frequency deviates from 48 or, B) p, ~6 I9 a* y' T4 }, p: |
44.1 kHz for more than approx. ±3 %.
- e v J$ C5 M5 u, v3 B/ l[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
# f l& I/ k3 S: s, {4 z+ i either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
4 D! n' l: S$ p9 ~% z[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
' A( e3 h" ?2 n7 N: \# Q the danger of overloading the A/D converter with short signal peaks (if* I C: R9 Y5 H$ W1 I
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,
& ?7 F" Y( E+ O. o. l( C allowing for approx. 6 dB reserve before hard clipping occurs! {3 n/ U2 ~. e3 X
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