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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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# X" B, A4 ?7 L4 U- r6 Z英文电子说明书
* G- T5 a! A1 b6 d" w/ ~[1] POWER Switches the unit on or off. The unit is ready to operate with the factory. T0 h" _6 \0 W: e: d8 P y
default settings. The subsequent settings remain stored in a Flash EPROM
( C) q7 t/ B/ T9 | X after switching the unit off (unit contains no battery).
+ Q; v. P0 \& n[2] Input dBu FS Rotary switch for coarse input sensitivity setting in 10 dB steps. OFF position
. ]4 @2 {) P/ U+ g6 C/ k2 m2 J7 H5 Y between microphone and line sensitivity setting ranges.
. u: e0 V S/ I7 \" V Mic: Range –40...+20 dBu
" n$ j9 f2 ?1 Q- f Line: Range +14 dBu, +24 dBu
) a$ M+ }( ?# d6 m; Q[3] Fine Gain Potentiometer for fine input sensitivity setting.: B7 {3 j( ^2 E" N ?: `
Range of additional gain: 0...+15 dB.5 x8 O f' s5 H! Y1 D
Headroom: The input sensitivity setting is calibrated in dBu per full-scale. It represents
9 L* A6 T0 N7 N/ d6 O, z, v8 { the dBu value of an analog input signal which causes a full-scale output of4 n0 a& G( {+ k8 [* J
the A/D converter." B# H+ o8 O1 a& O1 j5 Z3 r( `
Example: A studio works with +4 dBu nominal analog level and uses 12 dB headroom;
6 i7 Z3 F' `' H& x( { the peak level is therefore +16 dBu. The “Input dBu FS” rotary
; e' v' z: @- q! `6 t2 x) M switch [2] is set to +24 dBu (i.e. gain setting short by 8 dB), and the “Fine
* H* X/ d+ ~3 ~/ z6 e7 U5 B( m) y. J4 w' ? Gain” potentiometer [3] increases the gain by 8 dB.
" {) i9 @ [, E[4]...[6] Valve Dignifier Operative only if the function VALVE [8] is active.
3 P* T4 s' f- ^0 {7 {+ O/ m[4] Bass Warmth The sound of low frequencies becomes rounder; bass has more depth; vocals9 Y2 N8 O0 W, D5 Q
have more body; percussive instruments are less aggressive.
- d# M, z% {4 N) h8 a4 j4 M" a The group delay behaviour due to AC coupling of the stages is different in2 ?7 V5 m9 `: I
tube amplifiers.
( |. l1 f7 l8 A& L The “Bass Warmth” control allows to select the frequency range7 @: l, ^$ w) w! C/ q {8 c
(10...200 Hz) within which the effect is active.
* b' i( @" W6 H. ]) a7 M[5] Angel Zoom Adds transparency and clarity to vocals; emphasizes the solo instruments.0 t9 @# s$ {; B+ h- Y+ ~ I
Valve amps have a characteristic response, mid-frequency harmonic content$ W @2 T/ p% ^! K h0 }
is emphasized.
( O; M0 k3 c8 E2 T) V/ J/ {" ~[6] Valve Drive Gain/Clip Tight, full sound; the sound will be harder/softer.1 g0 @$ F3 z% z) W H- Z8 k
The harmonics spectrum of a delicately overloaded valve amplifier is completely
8 ?3 c* E! ~- Z3 i1 {) v$ D: N. u different from an overloaded transistor stage.) f: P: g: v% @2 B( {' q- Z7 J
The “Gain” control adjusts a gentle overload while the odd-harmonics content4 s- U; V% S& p ]$ v2 c) i. E' @ g
can be adjusted with the “Clip” control.
; e! q; D0 [: B( k[7] Line Out Output level setting, calibrated in dBu per full scale (dBu FS). Range: 4...24
: ~- v0 m( ?. Y. o dBu FS.
( ^. T& w5 e3 J% x[8] VALVE Toggle key for inserting the Valve Dignifier stage into the audio path of the' Q+ W9 f1 w5 y; W
desired channel.
2 G4 x* n6 K8 { s" K7 W+ g/ m The “VALVE” LED is on when the Valve Dignifier stage is active.
, v' `' W9 F, j1 x[9] INSERT INSERT function.
3 v7 ] X& A- |% b First key pressure: INSERT POST VALVE, the Insert Send is tapped after/ A4 D2 L) E* a _6 W' }" c
the valve stage (display: “INS”); the Insert Return is directly fed to the Line
/ D9 P& U+ c2 j% |7 | and AES/EBU outputs.- P* w6 ?. C* b- i7 Z7 e& O& n
Second key pressure: INSERT PRE VALVE, the Insert Send is tapped before
5 L9 @5 J! h! }. X the valve stage (display: “INS” and “PRE”); the Insert Return is fed via. {. u, Q( T' H$ _9 w$ p6 X
the valve dignifier stage to the Line and AES/EBU outputs." s8 p5 @2 T2 `: s
Third pressure: INSERT OFF, the input signal is fed via the valve dignifier2 a3 H0 q" b; Q: z
stage (if active) to the Line and AES/EBU outputs (also the Insert Send output/ E3 k: d4 @( c7 D, u
receives this signal; display: none).! o, V& y8 S# R
Insert Send and Insert Return are electronically balanced and equipped with
0 y5 n' Y* ]" u& Y XLR connectors.3 K% F. W7 g( }( H# _
[10] ROUTING Selector for the channel routing when using one of the (optional) TDIF or
0 L0 I) D, H* k0 |6 O ADAT digital interfaces. Each input channel can be switched to one of the
& }8 S" V) @' t% ?& ~+ V6 ? channels 1...8 of the multichannel interface. If desired, also a mono mix is
% z6 h, n% P& A possible by selecting the same output channel for both input channels.; j" g7 _7 B( w W' Y( x. ^3 l
[11] 48 V Toggle key to activate the 48 V phantom power supply for the desired microphone
! K0 q) B, Y7 H channel.) u7 t9 d4 E0 i! J! M$ b# v# ]' r
Can be operated only if the input gain selector is in Mic position. The0 U, H, ?# u) K& P# }* N
setting remains stored when switching over to a line gain setting.
, @1 j9 Z+ P) } ?7 }[12] Activates the high pass filter on the microphone inputs of the desired channel.4 l. q6 N; ?0 I6 C5 U
Cut-off frequency (–3 dB point) 75 Hz, slope 12 dB/octave.
3 R/ G- i: M, [* V Can be operated only if the input gain selector is in Mic position. The" b8 R$ f. D$ T# h+ @
setting remains stored when switching over to a line gain setting.7 a+ Y' i: \! k3 ]& C- x i
[13] Ø Toggle key to activate the phase reverse switch of the desired channel.$ b& x+ I& H6 V. h, f6 @ X$ k
[14] MODE Toggle key to select the word length of the DIGITAL OUTput. 20 bit (display:
2 u0 H7 w+ g0 ^7 k3 n# \7 u “20BIT”), 16 bit with dithering (display: “16DI”), or 16 bit with, g/ F9 V5 U s# x
Noise Shaping (display: “16NS”) can be selected.
) e1 p# F! T/ ]& s+ n7 G# L[15] SYNC Selects the synchronization source for the unit. Possible selections are:, c6 W4 e' F; d y
INT 48 Internal quartz reference, 48 kHz% g; {: F1 } r4 m6 j& b( t N6 A
INT 44 Internal quartz reference, 44.1 kHz
$ N' B& i, X! d8 E7 e0 l" Q: P& g WCLK Selects external Word Clock Sync (flashes if no valid input signal is recognized)8 n/ [ j" L; J! E0 n3 X( x/ I
AES Selects external AES/EBU Sync (flashes if no valid input signal is recognized)0 ?$ C( {; \2 D) \; f% m
AUTO Selects sources automatically in the sequence AES-WCLK-INT
+ T, `- N- ^7 I& ? VAR Indication only, active if the external source frequency deviates from 48 or
$ s5 _3 F. s, s2 k v: D4 F0 ` 44.1 kHz for more than approx. ±3 %.
) b+ k# d; j- _) Q7 J[16] PEAK HOLD Toggle key to select the PEAK HOLD function for the PPM level meters –( n* o' ~0 { ]4 g$ Q
either permanently (display: “HOLD”), or with automatic reset after approx. 2 s.
8 v/ a7 Y, _) p$ ]: R7 |! @[17] SOFT CLIP Toggle key to activate the SOFT CLIP function in the analog paths to reduce' d' a+ ?! y3 H& S8 {
the danger of overloading the A/D converter with short signal peaks (if
, O0 |2 ?% H/ h4 q7 u+ U/ f active, the display indicates “SOFT”). Threshold at 3 dB below full-scale,) w% S# ], J1 n8 L
allowing for approx. 6 dB reserve before hard clipping occurs
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