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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
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英文电子说明书
% V: _/ e/ f; Z% E7 Q6 ] S/ m B1 {[1] POWER Switches the unit on or off. The unit is ready to operate with the factory5 m$ m0 t1 a5 g$ J
default settings. The subsequent settings remain stored in a Flash EPROM
4 V# v; e e8 m. V/ w after switching the unit off (unit contains no battery).3 K; b& y; m% I6 p3 }# n4 I$ Y
[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position) k* B: a; _+ e' I2 G, W" i
between microphone and line sensitivity setting ranges.# D" m# }7 b1 H" i5 I0 w
Mic: Range –40...+20 dBu
' [ n' G5 U. }! s$ c7 ~7 _2 F: X4 | Line: Range +14 dBu, +24 dBu- ?6 Q( r @3 o9 l% [
[3] Fine Gain Potentiometer for fine input sensitivity setting.* }& K, F' Q& t0 j" |! E
Range of additional gain: 0...+15 dB.1 r1 c% E( T5 [/ t
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
7 R1 r* P2 D' ], x' ^8 P$ y8 z" S the dBu value of an analog input signal which causes a full-scale output of
9 l }! o o4 n the A/D converter.
$ o. j, H% v2 P6 b# t Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom; z) q3 b* z: H" I7 |3 S& q
the peak level is therefore +16 dBu. The “Input dBu FS” rotary
6 m& j* t8 Y4 w; P switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine% Q; ^% p2 u6 G5 Z& Y9 n
Gain” potentiometer [3] increases the gain by 8 dB.+ c L9 R9 m! j: `, c: b
[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.( v" S2 o. c0 n; y+ L
[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals* q# `% ^5 h4 R) U2 L
have more body; percussive instruments are less aggressive.
" ]1 c; T- `, H0 m/ v4 U6 v3 G% q5 ^ The group delay behaviour due to AC coupling of the stages is different in( D! ~7 S# D1 @
tube amplifiers.
% `% w5 \ u5 G9 `: g The “Bass Warmth” control allows to select the frequency range) v$ J( W0 V; H' W
(10...200 Hz) within which the effect is active.3 X* c. Q; M5 N( V) j# m$ S/ T8 g
[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.
: |, H1 ?8 M: Q5 w4 Q) c, L3 K' T Valve amps have a characteristic response, mid-frequency harmonic content( J# ^( W2 X. B0 C
is emphasized.
$ L0 X# u0 K+ |$ l0 e% ~[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.3 H2 a. Z, b- t
The harmonics spectrum of a delicately overloaded valve amplifier is completely4 @% V# [, R+ P1 T" |" X
different from an overloaded transistor stage.) I ~8 t6 m3 B: n
The “Gain” control adjusts a gentle overload while the odd-harmonics content1 ?$ v1 q( N7 k* Z, _" b% u1 l3 m* `% w
can be adjusted with the “Clip” control.1 S! |# h6 @4 ]3 a
[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...248 |8 u" F, o% L2 m3 X
dBu FS.
% {4 k: N! a( Q3 Y4 A$ N" l3 L[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the7 w) B, L: c0 `/ k
desired channel.6 `2 ~$ _, p' Y5 |1 M7 _) ?
The “VALVE” LED is on when the Valve Dignifier stage is active.
3 n2 q9 K2 C) k. T9 e[9] INSERT INSERT function.
: l* ^8 t, }( ?" b: d2 _ First key pressure: INSERT POST VALVE, the Insert Send is tapped after( c5 M6 D6 b6 u) I
the valve stage (display: “INS”); the Insert Return is directly fed to the Line6 @* h! B8 j; g* E3 v$ ?, \6 v" y
and AES/EBU outputs.
/ |) r& h, t! G H0 l Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before- A& z) B5 H- m! W, }$ }) J! b% i
the valve stage (display: “INS” and “PRE”); the Insert Return is fed via, ]/ s8 ] s5 ~4 F- H+ V1 p1 ~
the valve dignifier stage to the Line and AES/EBU outputs.- n- I& H% K( e8 x+ }+ \
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier, [, r* A* {! N/ |( H) g
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output' ]" C2 y! M5 Y+ Y) c9 Q
receives this signal; display: none).8 L4 m$ D ]$ N a; ^: b8 K4 b' n$ j
Insert Send and Insert Return are electronically balanced and equipped with
& v) `( `8 p5 r' B4 W XLR connectors.! R! y2 F3 P% X( X8 N5 W- ^1 {. t
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
3 V" S4 B) F2 @$ T3 X ADAT digital interfaces. Each input channel can be switched to one of the
( l7 Q, c( _7 ~- @& [- _8 _' p& j5 E channels 1...8 of the multichannel interface. If desired, also a mono mix is$ p( d3 @2 e4 O
possible by selecting the same output channel for both input channels.& c6 a+ Y1 F: O; R4 G# b& J$ m
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone- C- ~: f; j% g4 V9 {
channel.
) {) B. `& y3 w% ~8 Z Can be operated only if the input gain selector is in Mic position. The
; l- }4 m6 n! q; s setting remains stored when switching over to a line gain setting.
5 j( [; E I; u4 K! D[12] Activates the high pass filter on the microphone inputs of the desired channel.
, A4 ~3 C7 y* [$ g, y# W$ p; v Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
. c, a. |0 g' J+ B, H& }4 {8 i# j Can be operated only if the input gain selector is in Mic position. The7 Y4 ?4 A5 ?+ R
setting remains stored when switching over to a line gain setting.1 u& W- _% a5 E) m2 ~2 P' w
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.
$ m+ S( _+ p' x6 D2 s! ~, o$ Z1 w[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:1 P+ _1 h% Q/ i2 T6 I
“20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with5 |" s' q" q6 h/ |4 G+ K* I; R
Noise Shaping (display: “16NS”) can be selected.* @6 A. W1 a1 N* ^; s; ]4 c
[15] SYNC Selects the synchronization source for the unit. Possible selections are:
+ a/ c) t2 w9 `3 y/ c1 v INT 48 Internal quartz reference, 48 kHz4 P4 X! M6 K9 ~. d
INT 44 Internal quartz reference, 44.1 kHz
+ B* a, Z( t" d; z# Q4 r @ WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)8 j5 P' v. K; a8 x
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized): |: D, Z3 j% s" Z3 l4 p w, w4 w
AUTO Selects sources automatically in the sequence AES-WCLK-INT
/ z& _( | t& \2 J) D- o VAR Indication only, active if the external source frequency deviates from 48 or7 D& O# n* i- h% q/ f% n7 J
44.1 kHz for more than approx. ±3 %.6 X8 u$ {$ ]! m/ ~8 x$ G# n" P
[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –0 W* U" e( I0 Z" [8 O* m0 l \- l
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
7 e- X: C# m6 B$ ~[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce6 {4 M: d) N3 E' t$ a/ ~
the danger of overloading the A/D converter with short signal peaks (if. N$ a) B+ z# u; J3 H
active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,: `. J7 }( g0 n! M) ]8 m
allowing for approx. 6 dB reserve before hard clipping occurs
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