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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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$ i' m, ~5 K. {英文电子说明书! H6 v: q1 }+ r3 b' ?1 y* N
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory; h4 D/ j8 `! l5 u
default settings. The subsequent settings remain stored in a Flash EPROM
7 ^$ z( s9 z7 n% p7 f+ E- g after switching the unit off (unit contains no battery).
U) p3 g+ ~4 R1 S[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position I# r5 y U0 z- Q( P. Y
between microphone and line sensitivity setting ranges.
. ]/ D6 K( w5 R, t% z; q& u Mic: Range –40...+20 dBu
- p% l2 J3 p6 L Line: Range +14 dBu, +24 dBu
& c) C) {5 k2 p, x2 }[3] Fine Gain Potentiometer for fine input sensitivity setting.8 R* r; C8 ?) V6 J: W: q
Range of additional gain: 0...+15 dB.
9 P7 s5 y3 J# K }: V* d5 X1 y7 y& S/ C Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents$ n6 W( A- z% ]9 A
the dBu value of an analog input signal which causes a full-scale output of
, v% s# K3 r. u- o6 _1 \: ~ the A/D converter.. Y9 L& Q4 S/ h8 [% i C/ T
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
9 E, Q9 t6 z8 n: W, T$ E& a the peak level is therefore +16 dBu. The “Input dBu FS” rotary
% `1 _# C2 U- b2 N1 t switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine1 L3 t& o6 x6 F8 X4 U" D0 b2 i2 L, j
Gain” potentiometer [3] increases the gain by 8 dB.
% ^0 L; a0 \8 U8 Z2 H[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
$ t/ Z$ T- ?, E5 i; b% a1 f$ f& \[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals9 \) o6 w! c* m u/ D$ X
have more body; percussive instruments are less aggressive.' \8 j3 a J. K, v$ ?
The group delay behaviour due to AC coupling of the stages is different in
, e( \$ g3 C5 c Y/ G) A, }3 I' F9 I tube amplifiers.
, u6 w6 {- L( \% _) |1 X The “Bass Warmth” control allows to select the frequency range( _6 R, a. o% u- c6 T; z
(10...200 Hz) within which the effect is active.
9 n6 ]* ]* z+ U, l. |, Z" q[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.% f& `2 X. v& A6 @" g s# l
Valve amps have a characteristic response, mid-frequency harmonic content
1 W" T) V/ K/ w( _+ H) I3 W is emphasized." T* v6 a" `! D' V
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.& K$ K" c9 g7 y
The harmonics spectrum of a delicately overloaded valve amplifier is completely
) L6 A( G7 O! d4 X" h different from an overloaded transistor stage.
- s) N4 q" ~, k: ] The “Gain” control adjusts a gentle overload while the odd-harmonics content
- v0 O2 F9 ~$ `5 \2 ^ can be adjusted with the “Clip” control.( r' g( ^/ n0 ^$ K+ Q6 S
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
X6 A) |5 j6 D dBu FS.+ j0 [+ H4 T4 F
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
/ v" k7 v! i3 \9 j9 Q desired channel.
5 J3 [# i1 A" s* n! ^4 b The “VALVE” LED is on when the Valve Dignifier stage is active.
0 w' F r* O% {& A3 |. d" }[9] INSERT INSERT function.
% h* Y( q# e* O/ h6 m First key pressure: INSERT POST VALVE, the Insert Send is tapped after# ?0 S8 S" ]2 l: Y# K$ e* W
the valve stage (display: “INS”); the Insert Return is directly fed to the Line7 |! B4 M) P8 H9 B' i
and AES/EBU outputs.
* K$ { [1 r/ ^& j, h Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
" R. i+ A) G/ T/ a2 B the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
0 ~/ X8 Q W/ n. K0 ]4 C2 w1 k& {. g the valve dignifier stage to the Line and AES/EBU outputs.
0 ?) _' G! |( u: z# d Third pressure: INSERT OFF, the input signal is fed via the valve dignifier; V" E+ c0 @+ }! P0 k5 e
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
3 Q6 D' ^* b! H/ Y- C receives this signal; display: none).
$ ^8 x4 E& B: h* X/ S Insert Send and Insert Return are electronically balanced and equipped with
1 o* E! s# b+ o4 U4 @, e' O" g. W XLR connectors.0 a, r: r+ K+ i5 _/ K% [
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or. Y4 \* _7 i( o4 c; i& E
ADAT digital interfaces. Each input channel can be switched to one of the9 k* h# I! H9 o% m' T
channels 1...8 of the multichannel interface. If desired, also a mono mix is! @, H" M$ X0 k: X" F3 {
possible by selecting the same output channel for both input channels.
! T3 I4 E* p6 }/ g[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone7 ]6 r4 l4 I5 U `0 ]
channel.5 T/ V9 ]% e% D
Can be operated only if the input gain selector is in Mic position. The
# P+ s; s8 s7 B( `# ~ setting remains stored when switching over to a line gain setting.4 e8 u. C3 E! C: ?! _) H' q
[12] Activates the high pass filter on the microphone inputs of the desired channel.
; Q- ~" C& G: s$ v Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
- N/ j& p3 n7 F: F Can be operated only if the input gain selector is in Mic position. The" g9 q% s6 \' k& Q
setting remains stored when switching over to a line gain setting.
! A$ G7 X- b: U8 H( P" J[13] Ø Toggle key to activate the phase reverse switch of the desired channel.7 F& L" C) `! y
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
; h4 ~ f- r3 d9 P) N8 x$ R “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with; { b# r# Q7 N8 P+ r0 P
Noise Shaping (display: “16NS”) can be selected.
$ S; p; g, A+ V2 ~6 _[15] SYNC Selects the synchronization source for the unit. Possible selections are:
* {. k; p9 ]& l; l INT 48 Internal quartz reference, 48 kHz, d! x% Z3 @' l% n z9 C
INT 44 Internal quartz reference, 44.1 kHz
' n# ~! @% O* S) D9 @ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
, Y, v' C1 x" A# x) H* K AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)8 C6 t+ d# m, }. Q& w9 e& F
AUTO Selects sources automatically in the sequence AES-WCLK-INT
6 \, F9 H4 S, G f VAR Indication only, active if the external source frequency deviates from 48 or7 F* a% j, A8 y- ?- h! ]
44.1 kHz for more than approx. ±3 %., Y/ e9 d/ k& a, c& }# E
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –7 q7 [1 U$ K* J) I7 V' i& O$ W5 j9 P
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
- o) Y- o. u5 E4 P& F[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce- n) P' z2 W; H# U' }4 P* P
the danger of overloading the A/D converter with short signal peaks (if, K8 j9 Z1 v* W0 M1 x
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale," q0 q4 D5 [$ F& r A7 C7 c
allowing for approx. 6 dB reserve before hard clipping occurs9 X9 h1 G) \) `1 T% ~8 |0 y
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