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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 ' I9 l( W+ r7 w- h8 d
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英文电子说明书4 @& U$ `, ^& I8 \! t/ S* a: ~/ S0 Q
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory l$ J: S3 u' a, F1 V& ]% M' D
default settings. The subsequent settings remain stored in a Flash EPROM. j7 v/ L* B5 d9 y' c
after switching the unit off (unit contains no battery).) ^4 P# l. n. q/ C: s
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
8 ~! S, D4 {, I3 V between microphone and line sensitivity setting ranges.
0 o, B& O; d+ \7 z$ e% j Mic: Range –40...+20 dBu& s' _' O; ~5 Z# s5 T# `: Y, H
Line: Range +14 dBu, +24 dBu
. m9 z Y" \. a) i[3] Fine Gain Potentiometer for fine input sensitivity setting.8 H. a7 d( N m
Range of additional gain: 0...+15 dB.
s4 u# Y& Z5 h; B Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
: P1 T* D2 y ^% G" r) | the dBu value of an analog input signal which causes a full-scale output of
! l1 t# h5 V: ~& d X the A/D converter.
3 p/ p3 P' g s% R# x Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;7 u* i0 A. }$ F) F1 E: T: {0 l+ ?6 {
the peak level is therefore +16 dBu. The “Input dBu FS” rotary5 \+ u) J/ C4 c9 p
switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine# U6 ?! |) s9 @/ `! @% {7 ~* J
Gain” potentiometer [3] increases the gain by 8 dB. P' e9 F! x* v/ T2 C' G4 _
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.: \( ^8 j+ f! I* r# E) E3 x
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals
; V) a' I* [, c% V have more body; percussive instruments are less aggressive.
j) c( l& m) g8 D; l The group delay behaviour due to AC coupling of the stages is different in, W8 P& d( g8 q3 m8 Q
tube amplifiers.# D- E) B9 O: G( y! e# ^9 j* j/ T
The “Bass Warmth” control allows to select the frequency range7 x4 I/ E' q' Z* t; L3 D9 R5 H! N9 b
(10...200 Hz) within which the effect is active.
8 }$ S7 h+ V' G* y7 u[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments. C3 M k9 u/ k: a, }2 O6 y
Valve amps have a characteristic response, mid-frequency harmonic content
8 |- _4 g* |9 ]+ | is emphasized.5 j" i# V+ ]& X. C. x
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.6 t1 }1 m4 C; k; w( x5 W& G# Q
The harmonics spectrum of a delicately overloaded valve amplifier is completely
1 O% I+ A* D" a1 l) _4 p different from an overloaded transistor stage.
' Y+ X8 t2 V& F2 ^, G+ r2 E The “Gain” control adjusts a gentle overload while the odd-harmonics content
6 o" f+ A& K( C5 {; j can be adjusted with the “Clip” control.
, J0 A4 ~* Q/ k; G+ ^& J0 v[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
! N, W5 R h$ F @$ X dBu FS.. D! z/ z/ N* ~4 z$ K. ~
[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the" r6 j O+ N1 E# b9 a2 _
desired channel.+ c2 Y8 y/ P" X4 ?" o* `2 c+ x
The “VALVE” LED is on when the Valve Dignifier stage is active.
: t; b* x) Q# M4 h6 \[9] INSERT INSERT function.
" R) q2 W8 J3 `! ?3 v8 p( V First key pressure: INSERT POST VALVE, the Insert Send is tapped after& g" w% S; A. I' B! _8 S
the valve stage (display: “INS”); the Insert Return is directly fed to the Line. m2 c( D& |& s1 j3 E6 c
and AES/EBU outputs.
7 U( t8 V/ E8 ~0 E1 | Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before+ B+ s8 v: w3 @8 W( x1 V' S/ Y
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via$ }8 q0 J y- ~5 }/ B) r
the valve dignifier stage to the Line and AES/EBU outputs.
9 f2 C( V& g7 l1 z Third pressure: INSERT OFF, the input signal is fed via the valve dignifier" W; H% x1 ] @. n/ ~
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
& T5 F/ i: I6 t0 X* t' _ receives this signal; display: none).
1 k- V9 [. D n. r* h( Y Insert Send and Insert Return are electronically balanced and equipped with; H" l6 p6 Q. E
XLR connectors.0 R% `( Q* g# M- }' U; E
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
& Q9 ]3 G/ a+ w9 G ` R, k: { ADAT digital interfaces. Each input channel can be switched to one of the9 t/ c$ l6 M7 f, |5 o% e
channels 1...8 of the multichannel interface. If desired, also a mono mix is
+ ?. p- h$ h" f9 [/ V, ]1 o possible by selecting the same output channel for both input channels.3 b0 x9 j3 i/ I& W7 j( j, L
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
# P/ S3 F4 ?& m a% d channel.- q J$ ^4 o1 T
Can be operated only if the input gain selector is in Mic position. The
: N' B2 ]8 s! S, d setting remains stored when switching over to a line gain setting.
9 P# |4 [4 n( X[12] Activates the high pass filter on the microphone inputs of the desired channel.
5 j. C" p" ?5 q' s) w& u+ E+ h$ | Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.% o. h1 @) q0 h1 Y" a# w# N' F
Can be operated only if the input gain selector is in Mic position. The$ C5 z* [/ ~8 Z( }8 G
setting remains stored when switching over to a line gain setting.
) ~$ A5 N' Q( _: a9 N! L[13] Ø Toggle key to activate the phase reverse switch of the desired channel.1 }- i8 T( Y/ l" E
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:7 S8 X* g/ r5 A' L
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with. H1 b% V2 B& c4 E) ]' U
Noise Shaping (display: “16NS”) can be selected.
6 ^' y* b8 g# t$ u. e9 K3 \) c* F[15] SYNC Selects the synchronization source for the unit. Possible selections are:
; a3 E0 t, [- y+ ?2 L INT 48 Internal quartz reference, 48 kHz4 F: W: p2 s1 c* a* W
INT 44 Internal quartz reference, 44.1 kHz! w( Y% a8 u6 I5 ~
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)
* n8 `/ D' J, F7 e6 |; w/ a AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
1 M' A1 O: q) |. T: I0 J4 x- @ AUTO Selects sources automatically in the sequence AES-WCLK-INT! }# W% i9 u5 g
VAR Indication only, active if the external source frequency deviates from 48 or
( E# X7 z1 W, T" e S5 Q! t 44.1 kHz for more than approx. ±3 %.& ]- W$ h% n9 `8 I3 b( I% S
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –
m% c8 X+ G$ |$ u- }% s either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.; k; z' {& l4 ^! d' _
[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce
5 @' t% U8 d9 d; P" F; E* ] the danger of overloading the A/D converter with short signal peaks (if
! \0 U+ l# K$ r% l: b' k active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,* t6 j8 _6 E4 t. R
allowing for approx. 6 dB reserve before hard clipping occurs1 B s& A/ O* \! b+ C9 Z3 A
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