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发表于 2012-5-20 00:04:04
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本帖最后由 dan3963101 于 2012-5-20 00:12 编辑 6 n0 O c9 U% Y1 K% `4 Y- r
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英文电子说明书( T0 P" C% p" [- j) s ` f) o
[1] POWER Switches the unit on or off. The unit is ready to operate with the factory
2 v$ X0 a# p# N, i$ u& `: L default settings. The subsequent settings remain stored in a Flash EPROM" i& K0 Z* e1 h: k. l: j9 s; c& U' j
after switching the unit off (unit contains no battery).+ x, N" |7 I' i8 J
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
1 x5 F- H0 P8 v; o9 C7 I between microphone and line sensitivity setting ranges., ^! e# y! q& p
Mic: Range –40...+20 dBu
0 Q2 E+ d1 \ B5 z m2 c Line: Range +14 dBu, +24 dBu6 X* L2 F/ R! |) ?
[3] Fine Gain Potentiometer for fine input sensitivity setting.5 p: c( T4 A: M, j! |) B
Range of additional gain: 0...+15 dB.
8 [) Z+ X9 H8 H Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
. }& s. j% H- Z2 o5 ~* S. S& [ the dBu value of an analog input signal which causes a full-scale output of
7 h5 u4 D+ U; A6 F. H* ?# w z the A/D converter.
7 O+ u$ I% ]7 c" c" }# g Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
+ Q+ m0 W3 Q- e/ m2 Y the peak level is therefore +16 dBu. The “Input dBu FS” rotary
: m1 R# H2 p$ U$ p+ E' K! | switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine2 m6 {7 u. z/ i. s% t( m7 M. ~) O8 ]
Gain” potentiometer [3] increases the gain by 8 dB.) j. d8 `3 ~$ E7 `) E2 D
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.. Q' }0 y, [* J3 q8 n- N$ |7 L
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals" w0 j( k' X" p# z9 {
have more body; percussive instruments are less aggressive.
/ @: O9 z0 X* s. m$ ^. E( n; C& B The group delay behaviour due to AC coupling of the stages is different in" I* X$ M; R S8 N! S) z
tube amplifiers.
* d7 C6 y; I' |6 @( a The “Bass Warmth” control allows to select the frequency range$ \5 n5 X4 a3 S1 H$ j2 t
(10...200 Hz) within which the effect is active.$ \) l5 `+ H z4 O. ]* T
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
# P+ I- Q+ K8 P- D" q. Z0 s Valve amps have a characteristic response, mid-frequency harmonic content6 q2 _& B; ^$ ^# i* @- F% Y$ k
is emphasized./ c" g% j0 R: ]: t* D7 w
[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.
; J6 L* p- a7 L2 |: S5 R The harmonics spectrum of a delicately overloaded valve amplifier is completely
) y& c* \ u! M2 J# U different from an overloaded transistor stage.6 j) d6 a) S3 q. W5 }' ~
The “Gain” control adjusts a gentle overload while the odd-harmonics content
! x' b: f$ g( O2 {9 g can be adjusted with the “Clip” control.
7 F b/ [8 n; `# d* M/ `4 u[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24, X+ Y. Z5 p+ J; t
dBu FS.
; @" `8 {! D7 E u; d[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the
# h# \2 ]: H `/ n( X1 L: v desired channel.3 O; ]0 O0 m; S! E9 u' L& f
The “VALVE” LED is on when the Valve Dignifier stage is active.
9 g, T' q- A8 A: H7 ^[9] INSERT INSERT function.
+ V1 J* L* ]3 H# k, V1 E* u First key pressure: INSERT POST VALVE, the Insert Send is tapped after8 @% K; s% x. b1 h7 e7 t# @% _3 N
the valve stage (display: “INS”); the Insert Return is directly fed to the Line9 X1 a5 K# X8 x) I \2 c
and AES/EBU outputs.
. ~, t) \; a5 f Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before; c7 {: I$ q, N: s0 ` [, W$ N- M
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via
, w/ t& \ ~. x7 Y% h6 r* m the valve dignifier stage to the Line and AES/EBU outputs.
# [' H- S8 A6 d2 Y Third pressure: INSERT OFF, the input signal is fed via the valve dignifier4 [1 A6 A7 U) E! \9 n1 A1 |
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output
- N5 s' L1 V2 f0 W1 u receives this signal; display: none).3 Y* d) ~. p3 D" r5 G( ]
Insert Send and Insert Return are electronically balanced and equipped with
2 Z2 i# `) d# H$ _ o) B- S XLR connectors., Y2 h0 U9 \9 h" n* K1 ?
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or# V- E! D- D1 R1 |' d9 v8 f. V
ADAT digital interfaces. Each input channel can be switched to one of the+ Q8 ^/ Q8 Z5 n) s1 j, j# O
channels 1...8 of the multichannel interface. If desired, also a mono mix is* {! g. Z6 {! b! f
possible by selecting the same output channel for both input channels.# I+ t7 C9 g8 {' ?/ C
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
8 j, w* T9 D' C k5 o( X channel.3 q# ?" x+ y# ~) l( M- t* r
Can be operated only if the input gain selector is in Mic position. The
" i# ~5 v& y" m8 w setting remains stored when switching over to a line gain setting.
* ]9 N+ J7 b2 J! l9 g[12] Activates the high pass filter on the microphone inputs of the desired channel.
" |+ b7 Y h( Q% a( a* i8 ^( k Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
' k/ R* w$ {' v" f/ ^# e8 ~; ~ Can be operated only if the input gain selector is in Mic position. The6 [+ C, Y. ^' z( T& k; W) |
setting remains stored when switching over to a line gain setting.% K, l. i# B# ~5 A; B; ]) A) e) S
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
$ `4 r. S0 b3 Y$ p- v* K[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
- N; i* a! X% \" }% K$ e “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with$ V) d& u9 s/ k) {
Noise Shaping (display: “16NS”) can be selected.
* p- [* ^3 ^ Y( S/ ]$ @ k1 p- u1 n[15] SYNC Selects the synchronization source for the unit. Possible selections are:
! \0 z5 b# n) n/ }* D, c4 t/ t( Y5 { INT 48 Internal quartz reference, 48 kHz& h# Q! I+ |( p. `" I- |; O9 g
INT 44 Internal quartz reference, 44.1 kHz# U; t. \ _5 ]7 |. s
WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized), _2 s) e2 ^7 s; L0 f' _
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)
2 o* O$ X: d4 o' ]# r7 U4 U' D AUTO Selects sources automatically in the sequence AES-WCLK-INT2 |- l! W0 R ]/ [, d' Q' l) ~
VAR Indication only, active if the external source frequency deviates from 48 or1 V( g& s; v' L. y% I5 m A
44.1 kHz for more than approx. ±3 %.
7 E7 {# a3 t, @: X[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –. q( Q! [8 l( f) C! V
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
9 p. A3 v+ J3 N {! r[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce) J5 x6 e: N" \! a' D) d$ t$ k q
the danger of overloading the A/D converter with short signal peaks (if+ {- d6 d( j4 c6 A4 F4 o4 G
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,4 X1 t& `2 b" r* m6 `
allowing for approx. 6 dB reserve before hard clipping occurs* H* a0 {& U( T
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